annotate lib/vasnprintf.c @ 9938:9f8c455639fc

Fix rounding when a precision is given.
author Bruno Haible <bruno@clisp.org>
date Sat, 19 Apr 2008 17:26:36 +0200
parents b4f1e5627265
children 11aa2931dfc7
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1 /* vsprintf with automatic memory allocation.
9646
a113e473cc98 Rename isnan, applicable to 'double' only, to isnand.
Bruno Haible <bruno@clisp.org>
parents: 9489
diff changeset
2 Copyright (C) 1999, 2002-2008 Free Software Foundation, Inc.
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3
4440
e58a1c05a6ba Update gettext source files from gettext automatically, using srclist-update.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4428
diff changeset
4 This program is free software; you can redistribute it and/or modify
e58a1c05a6ba Update gettext source files from gettext automatically, using srclist-update.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4428
diff changeset
5 it under the terms of the GNU General Public License as published by
e58a1c05a6ba Update gettext source files from gettext automatically, using srclist-update.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4428
diff changeset
6 the Free Software Foundation; either version 2, or (at your option)
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
7 any later version.
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
8
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
9 This program is distributed in the hope that it will be useful,
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
4440
e58a1c05a6ba Update gettext source files from gettext automatically, using srclist-update.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4428
diff changeset
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
e58a1c05a6ba Update gettext source files from gettext automatically, using srclist-update.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4428
diff changeset
12 GNU General Public License for more details.
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
13
4440
e58a1c05a6ba Update gettext source files from gettext automatically, using srclist-update.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4428
diff changeset
14 You should have received a copy of the GNU General Public License along
e58a1c05a6ba Update gettext source files from gettext automatically, using srclist-update.
Paul Eggert <eggert@cs.ucla.edu>
parents: 4428
diff changeset
15 with this program; if not, write to the Free Software Foundation,
5848
a48fb0e98c8c *** empty log message ***
Paul Eggert <eggert@cs.ucla.edu>
parents: 5670
diff changeset
16 Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
17
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
18 /* This file can be parametrized with the following macros:
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
19 VASNPRINTF The name of the function being defined.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
20 FCHAR_T The element type of the format string.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
21 DCHAR_T The element type of the destination (result) string.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
22 FCHAR_T_ONLY_ASCII Set to 1 to enable verification that all characters
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
23 in the format string are ASCII. MUST be set if
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
24 FCHAR_T and DCHAR_T are not the same type.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
25 DIRECTIVE Structure denoting a format directive.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
26 Depends on FCHAR_T.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
27 DIRECTIVES Structure denoting the set of format directives of a
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
28 format string. Depends on FCHAR_T.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
29 PRINTF_PARSE Function that parses a format string.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
30 Depends on FCHAR_T.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
31 DCHAR_CPY memcpy like function for DCHAR_T[] arrays.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
32 DCHAR_SET memset like function for DCHAR_T[] arrays.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
33 DCHAR_MBSNLEN mbsnlen like function for DCHAR_T[] arrays.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
34 SNPRINTF The system's snprintf (or similar) function.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
35 This may be either snprintf or swprintf.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
36 TCHAR_T The element type of the argument and result string
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
37 of the said SNPRINTF function. This may be either
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
38 char or wchar_t. The code exploits that
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
39 sizeof (TCHAR_T) | sizeof (DCHAR_T) and
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
40 alignof (TCHAR_T) <= alignof (DCHAR_T).
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
41 DCHAR_IS_TCHAR Set to 1 if DCHAR_T and TCHAR_T are the same type.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
42 DCHAR_CONV_FROM_ENCODING A function to convert from char[] to DCHAR[].
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
43 DCHAR_IS_UINT8_T Set to 1 if DCHAR_T is uint8_t.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
44 DCHAR_IS_UINT16_T Set to 1 if DCHAR_T is uint16_t.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
45 DCHAR_IS_UINT32_T Set to 1 if DCHAR_T is uint32_t. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
46
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
47 /* Tell glibc's <stdio.h> to provide a prototype for snprintf().
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
48 This must come before <config.h> because <config.h> may include
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
49 <features.h>, and once <features.h> has been included, it's too late. */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
50 #ifndef _GNU_SOURCE
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
51 # define _GNU_SOURCE 1
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
52 #endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
53
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
54 #ifndef VASNPRINTF
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
55 # include <config.h>
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
56 #endif
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
57 #ifndef IN_LIBINTL
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
58 # include <alloca.h>
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
59 #endif
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
60
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
61 /* Specification. */
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
62 #ifndef VASNPRINTF
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
63 # if WIDE_CHAR_VERSION
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
64 # include "vasnwprintf.h"
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
65 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
66 # include "vasnprintf.h"
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
67 # endif
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
68 #endif
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
69
8400
655fca11a0e6 The decimal point must be locale dependent.
Bruno Haible <bruno@clisp.org>
parents: 8343
diff changeset
70 #include <locale.h> /* localeconv() */
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
71 #include <stdio.h> /* snprintf(), sprintf() */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
72 #include <stdlib.h> /* abort(), malloc(), realloc(), free() */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
73 #include <string.h> /* memcpy(), strlen() */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
74 #include <errno.h> /* errno */
7218
0fd12ba5cfc6 Do the INT_MAX check only where size_t is converted to 'int'.
Bruno Haible <bruno@clisp.org>
parents: 6583
diff changeset
75 #include <limits.h> /* CHAR_BIT */
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
76 #include <float.h> /* DBL_MAX_EXP, LDBL_MAX_EXP */
8554
35eb5062216c Prefer nl_langinfo over localeconv.
Bruno Haible <bruno@clisp.org>
parents: 8531
diff changeset
77 #if HAVE_NL_LANGINFO
35eb5062216c Prefer nl_langinfo over localeconv.
Bruno Haible <bruno@clisp.org>
parents: 8531
diff changeset
78 # include <langinfo.h>
35eb5062216c Prefer nl_langinfo over localeconv.
Bruno Haible <bruno@clisp.org>
parents: 8531
diff changeset
79 #endif
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
80 #ifndef VASNPRINTF
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
81 # if WIDE_CHAR_VERSION
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
82 # include "wprintf-parse.h"
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
83 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
84 # include "printf-parse.h"
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
85 # endif
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
86 #endif
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
87
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
88 /* Checked size_t computations. */
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
89 #include "xsize.h"
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
90
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
91 #if (NEED_PRINTF_DOUBLE || NEED_PRINTF_LONG_DOUBLE) && !defined IN_LIBINTL
8860
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
92 # include <math.h>
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
93 # include "float+.h"
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
94 #endif
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
95
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
96 #if (NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE) && !defined IN_LIBINTL
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
97 # include <math.h>
9646
a113e473cc98 Rename isnan, applicable to 'double' only, to isnand.
Bruno Haible <bruno@clisp.org>
parents: 9489
diff changeset
98 # include "isnand.h"
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
99 #endif
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
100
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
101 #if (NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_INFINITE_LONG_DOUBLE) && !defined IN_LIBINTL
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
102 # include <math.h>
8860
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
103 # include "isnanl-nolibm.h"
8915
f15c03805bd9 Fix possible compilation error.
Bruno Haible <bruno@clisp.org>
parents: 8865
diff changeset
104 # include "fpucw.h"
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
105 #endif
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
106
9454
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
107 #if (NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_DOUBLE) && !defined IN_LIBINTL
8655
9a272158fe43 Faster determination of the sign of a number.
Bruno Haible <bruno@clisp.org>
parents: 8648
diff changeset
108 # include <math.h>
9646
a113e473cc98 Rename isnan, applicable to 'double' only, to isnand.
Bruno Haible <bruno@clisp.org>
parents: 9489
diff changeset
109 # include "isnand.h"
8526
67e9a647f2fa Fix includes.
Bruno Haible <bruno@clisp.org>
parents: 8487
diff changeset
110 # include "printf-frexp.h"
9454
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
111 #endif
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
112
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
113 #if (NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_LONG_DOUBLE) && !defined IN_LIBINTL
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
114 # include <math.h>
8648
359d135f748c Assume 'long double' exists.
Bruno Haible <bruno@clisp.org>
parents: 8569
diff changeset
115 # include "isnanl-nolibm.h"
359d135f748c Assume 'long double' exists.
Bruno Haible <bruno@clisp.org>
parents: 8569
diff changeset
116 # include "printf-frexpl.h"
359d135f748c Assume 'long double' exists.
Bruno Haible <bruno@clisp.org>
parents: 8569
diff changeset
117 # include "fpucw.h"
8335
2c9de3b6ba5b New module 'vasnprintf-posix'.
Bruno Haible <bruno@clisp.org>
parents: 8254
diff changeset
118 #endif
2c9de3b6ba5b New module 'vasnprintf-posix'.
Bruno Haible <bruno@clisp.org>
parents: 8254
diff changeset
119
8051
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
120 #if HAVE_WCHAR_T
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
121 # if HAVE_WCSLEN
4523
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
122 # define local_wcslen wcslen
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
123 # else
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
124 /* Solaris 2.5.1 has wcslen() in a separate library libw.so. To avoid
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
125 a dependency towards this library, here is a local substitute.
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
126 Define this substitute only once, even if this file is included
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
127 twice in the same compilation unit. */
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
128 # ifndef local_wcslen_defined
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
129 # define local_wcslen_defined 1
4523
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
130 static size_t
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
131 local_wcslen (const wchar_t *s)
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
132 {
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
133 const wchar_t *ptr;
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
134
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
135 for (ptr = s; *ptr != (wchar_t) 0; ptr++)
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
136 ;
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
137 return ptr - s;
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
138 }
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
139 # endif
4523
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
140 # endif
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
141 #endif
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1.
Bruno Haible <bruno@clisp.org>
parents: 4444
diff changeset
142
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
143 /* Default parameters. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
144 #ifndef VASNPRINTF
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
145 # if WIDE_CHAR_VERSION
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
146 # define VASNPRINTF vasnwprintf
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
147 # define FCHAR_T wchar_t
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
148 # define DCHAR_T wchar_t
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
149 # define TCHAR_T wchar_t
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
150 # define DCHAR_IS_TCHAR 1
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
151 # define DIRECTIVE wchar_t_directive
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
152 # define DIRECTIVES wchar_t_directives
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
153 # define PRINTF_PARSE wprintf_parse
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
154 # define DCHAR_CPY wmemcpy
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
155 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
156 # define VASNPRINTF vasnprintf
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
157 # define FCHAR_T char
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
158 # define DCHAR_T char
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
159 # define TCHAR_T char
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
160 # define DCHAR_IS_TCHAR 1
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
161 # define DIRECTIVE char_directive
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
162 # define DIRECTIVES char_directives
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
163 # define PRINTF_PARSE printf_parse
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
164 # define DCHAR_CPY memcpy
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
165 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
166 #endif
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
167 #if WIDE_CHAR_VERSION
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
168 /* TCHAR_T is wchar_t. */
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
169 # define USE_SNPRINTF 1
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
170 # if HAVE_DECL__SNWPRINTF
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
171 /* On Windows, the function swprintf() has a different signature than
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
172 on Unix; we use the _snwprintf() function instead. */
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
173 # define SNPRINTF _snwprintf
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
174 # else
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
175 /* Unix. */
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
176 # define SNPRINTF swprintf
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
177 # endif
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
178 #else
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
179 /* TCHAR_T is char. */
8831
d3f907c33d15 Work around broken snprintf function on BeOS.
Bruno Haible <bruno@clisp.org>
parents: 8830
diff changeset
180 # /* Use snprintf if it exists under the name 'snprintf' or '_snprintf'.
d3f907c33d15 Work around broken snprintf function on BeOS.
Bruno Haible <bruno@clisp.org>
parents: 8830
diff changeset
181 But don't use it on BeOS, since BeOS snprintf produces no output if the
d3f907c33d15 Work around broken snprintf function on BeOS.
Bruno Haible <bruno@clisp.org>
parents: 8830
diff changeset
182 size argument is >= 0x3000000. */
d3f907c33d15 Work around broken snprintf function on BeOS.
Bruno Haible <bruno@clisp.org>
parents: 8830
diff changeset
183 # if (HAVE_DECL__SNPRINTF || HAVE_SNPRINTF) && !defined __BEOS__
d3f907c33d15 Work around broken snprintf function on BeOS.
Bruno Haible <bruno@clisp.org>
parents: 8830
diff changeset
184 # define USE_SNPRINTF 1
d3f907c33d15 Work around broken snprintf function on BeOS.
Bruno Haible <bruno@clisp.org>
parents: 8830
diff changeset
185 # else
d3f907c33d15 Work around broken snprintf function on BeOS.
Bruno Haible <bruno@clisp.org>
parents: 8830
diff changeset
186 # define USE_SNPRINTF 0
d3f907c33d15 Work around broken snprintf function on BeOS.
Bruno Haible <bruno@clisp.org>
parents: 8830
diff changeset
187 # endif
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
188 # if HAVE_DECL__SNPRINTF
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
189 /* Windows. */
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
190 # define SNPRINTF _snprintf
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
191 # else
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
192 /* Unix. */
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
193 # define SNPRINTF snprintf
8417
ee40afd85f2c Avoid an endless recursion.
Bruno Haible <bruno@clisp.org>
parents: 8400
diff changeset
194 /* Here we need to call the native snprintf, not rpl_snprintf. */
ee40afd85f2c Avoid an endless recursion.
Bruno Haible <bruno@clisp.org>
parents: 8400
diff changeset
195 # undef snprintf
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
196 # endif
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
197 #endif
8424
ec3450ce9889 Use the system's sprintf function.
Bruno Haible <bruno@clisp.org>
parents: 8417
diff changeset
198 /* Here we need to call the native sprintf, not rpl_sprintf. */
ec3450ce9889 Use the system's sprintf function.
Bruno Haible <bruno@clisp.org>
parents: 8417
diff changeset
199 #undef sprintf
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
200
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
201 #if (NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE) && !defined IN_LIBINTL
8569
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
202 /* Determine the decimal-point character according to the current locale. */
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
203 # ifndef decimal_point_char_defined
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
204 # define decimal_point_char_defined 1
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
205 static char
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
206 decimal_point_char ()
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
207 {
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
208 const char *point;
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
209 /* Determine it in a multithread-safe way. We know nl_langinfo is
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
210 multithread-safe on glibc systems, but is not required to be multithread-
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
211 safe by POSIX. sprintf(), however, is multithread-safe. localeconv()
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
212 is rarely multithread-safe. */
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
213 # if HAVE_NL_LANGINFO && __GLIBC__
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
214 point = nl_langinfo (RADIXCHAR);
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
215 # elif 1
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
216 char pointbuf[5];
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
217 sprintf (pointbuf, "%#.0f", 1.0);
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
218 point = &pointbuf[1];
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
219 # else
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
220 point = localeconv () -> decimal_point;
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
221 # endif
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
222 /* The decimal point is always a single byte: either '.' or ','. */
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
223 return (point[0] != '\0' ? point[0] : '.');
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
224 }
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
225 # endif
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
226 #endif
378e85482afa Use multithread-safe primitives for determining the decimal point character.
Bruno Haible <bruno@clisp.org>
parents: 8554
diff changeset
227
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
228 #if NEED_PRINTF_INFINITE_DOUBLE && !NEED_PRINTF_DOUBLE && !defined IN_LIBINTL
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
229
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
230 /* Equivalent to !isfinite(x) || x == 0, but does not require libm. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
231 static int
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
232 is_infinite_or_zero (double x)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
233 {
9646
a113e473cc98 Rename isnan, applicable to 'double' only, to isnand.
Bruno Haible <bruno@clisp.org>
parents: 9489
diff changeset
234 return isnand (x) || x + x == x;
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
235 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
236
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
237 #endif
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
238
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
239 #if NEED_PRINTF_INFINITE_LONG_DOUBLE && !NEED_PRINTF_LONG_DOUBLE && !defined IN_LIBINTL
8860
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
240
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
241 /* Equivalent to !isfinite(x), but does not require libm. */
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
242 static int
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
243 is_infinitel (long double x)
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
244 {
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
245 return isnanl (x) || (x + x == x && x != 0.0L);
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
246 }
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
247
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
248 #endif
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
249
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
250 #if (NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE) && !defined IN_LIBINTL
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
251
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
252 /* Converting 'long double' to decimal without rare rounding bugs requires
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
253 real bignums. We use the naming conventions of GNU gmp, but vastly simpler
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
254 (and slower) algorithms. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
255
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
256 typedef unsigned int mp_limb_t;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
257 # define GMP_LIMB_BITS 32
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
258 typedef int mp_limb_verify[2 * (sizeof (mp_limb_t) * CHAR_BIT == GMP_LIMB_BITS) - 1];
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
259
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
260 typedef unsigned long long mp_twolimb_t;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
261 # define GMP_TWOLIMB_BITS 64
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
262 typedef int mp_twolimb_verify[2 * (sizeof (mp_twolimb_t) * CHAR_BIT == GMP_TWOLIMB_BITS) - 1];
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
263
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
264 /* Representation of a bignum >= 0. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
265 typedef struct
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
266 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
267 size_t nlimbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
268 mp_limb_t *limbs; /* Bits in little-endian order, allocated with malloc(). */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
269 } mpn_t;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
270
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
271 /* Compute the product of two bignums >= 0.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
272 Return the allocated memory in case of success, NULL in case of memory
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
273 allocation failure. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
274 static void *
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
275 multiply (mpn_t src1, mpn_t src2, mpn_t *dest)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
276 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
277 const mp_limb_t *p1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
278 const mp_limb_t *p2;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
279 size_t len1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
280 size_t len2;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
281
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
282 if (src1.nlimbs <= src2.nlimbs)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
283 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
284 len1 = src1.nlimbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
285 p1 = src1.limbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
286 len2 = src2.nlimbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
287 p2 = src2.limbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
288 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
289 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
290 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
291 len1 = src2.nlimbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
292 p1 = src2.limbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
293 len2 = src1.nlimbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
294 p2 = src1.limbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
295 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
296 /* Now 0 <= len1 <= len2. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
297 if (len1 == 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
298 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
299 /* src1 or src2 is zero. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
300 dest->nlimbs = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
301 dest->limbs = (mp_limb_t *) malloc (1);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
302 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
303 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
304 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
305 /* Here 1 <= len1 <= len2. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
306 size_t dlen;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
307 mp_limb_t *dp;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
308 size_t k, i, j;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
309
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
310 dlen = len1 + len2;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
311 dp = (mp_limb_t *) malloc (dlen * sizeof (mp_limb_t));
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
312 if (dp == NULL)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
313 return NULL;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
314 for (k = len2; k > 0; )
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
315 dp[--k] = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
316 for (i = 0; i < len1; i++)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
317 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
318 mp_limb_t digit1 = p1[i];
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
319 mp_twolimb_t carry = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
320 for (j = 0; j < len2; j++)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
321 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
322 mp_limb_t digit2 = p2[j];
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
323 carry += (mp_twolimb_t) digit1 * (mp_twolimb_t) digit2;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
324 carry += dp[i + j];
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
325 dp[i + j] = (mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
326 carry = carry >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
327 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
328 dp[i + len2] = (mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
329 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
330 /* Normalise. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
331 while (dlen > 0 && dp[dlen - 1] == 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
332 dlen--;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
333 dest->nlimbs = dlen;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
334 dest->limbs = dp;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
335 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
336 return dest->limbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
337 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
338
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
339 /* Compute the quotient of a bignum a >= 0 and a bignum b > 0.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
340 a is written as a = q * b + r with 0 <= r < b. q is the quotient, r
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
341 the remainder.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
342 Finally, round-to-even is performed: If r > b/2 or if r = b/2 and q is odd,
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
343 q is incremented.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
344 Return the allocated memory in case of success, NULL in case of memory
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
345 allocation failure. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
346 static void *
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
347 divide (mpn_t a, mpn_t b, mpn_t *q)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
348 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
349 /* Algorithm:
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
350 First normalise a and b: a=[a[m-1],...,a[0]], b=[b[n-1],...,b[0]]
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
351 with m>=0 and n>0 (in base beta = 2^GMP_LIMB_BITS).
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
352 If m<n, then q:=0 and r:=a.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
353 If m>=n=1, perform a single-precision division:
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
354 r:=0, j:=m,
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
355 while j>0 do
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
356 {Here (q[m-1]*beta^(m-1)+...+q[j]*beta^j) * b[0] + r*beta^j =
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
357 = a[m-1]*beta^(m-1)+...+a[j]*beta^j und 0<=r<b[0]<beta}
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
358 j:=j-1, r:=r*beta+a[j], q[j]:=floor(r/b[0]), r:=r-b[0]*q[j].
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
359 Normalise [q[m-1],...,q[0]], yields q.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
360 If m>=n>1, perform a multiple-precision division:
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
361 We have a/b < beta^(m-n+1).
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
362 s:=intDsize-1-(hightest bit in b[n-1]), 0<=s<intDsize.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
363 Shift a and b left by s bits, copying them. r:=a.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
364 r=[r[m],...,r[0]], b=[b[n-1],...,b[0]] with b[n-1]>=beta/2.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
365 For j=m-n,...,0: {Here 0 <= r < b*beta^(j+1).}
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
366 Compute q* :
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
367 q* := floor((r[j+n]*beta+r[j+n-1])/b[n-1]).
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
368 In case of overflow (q* >= beta) set q* := beta-1.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
369 Compute c2 := ((r[j+n]*beta+r[j+n-1]) - q* * b[n-1])*beta + r[j+n-2]
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
370 and c3 := b[n-2] * q*.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
371 {We have 0 <= c2 < 2*beta^2, even 0 <= c2 < beta^2 if no overflow
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
372 occurred. Furthermore 0 <= c3 < beta^2.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
373 If there was overflow and
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
374 r[j+n]*beta+r[j+n-1] - q* * b[n-1] >= beta, i.e. c2 >= beta^2,
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
375 the next test can be skipped.}
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
376 While c3 > c2, {Here 0 <= c2 < c3 < beta^2}
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
377 Put q* := q* - 1, c2 := c2 + b[n-1]*beta, c3 := c3 - b[n-2].
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
378 If q* > 0:
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
379 Put r := r - b * q* * beta^j. In detail:
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
380 [r[n+j],...,r[j]] := [r[n+j],...,r[j]] - q* * [b[n-1],...,b[0]].
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
381 hence: u:=0, for i:=0 to n-1 do
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
382 u := u + q* * b[i],
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
383 r[j+i]:=r[j+i]-(u mod beta) (+ beta, if carry),
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
384 u:=u div beta (+ 1, if carry in subtraction)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
385 r[n+j]:=r[n+j]-u.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
386 {Since always u = (q* * [b[i-1],...,b[0]] div beta^i) + 1
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
387 < q* + 1 <= beta,
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
388 the carry u does not overflow.}
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
389 If a negative carry occurs, put q* := q* - 1
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
390 and [r[n+j],...,r[j]] := [r[n+j],...,r[j]] + [0,b[n-1],...,b[0]].
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
391 Set q[j] := q*.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
392 Normalise [q[m-n],..,q[0]]; this yields the quotient q.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
393 Shift [r[n-1],...,r[0]] right by s bits and normalise; this yields the
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
394 rest r.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
395 The room for q[j] can be allocated at the memory location of r[n+j].
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
396 Finally, round-to-even:
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
397 Shift r left by 1 bit.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
398 If r > b or if r = b and q[0] is odd, q := q+1.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
399 */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
400 const mp_limb_t *a_ptr = a.limbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
401 size_t a_len = a.nlimbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
402 const mp_limb_t *b_ptr = b.limbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
403 size_t b_len = b.nlimbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
404 mp_limb_t *roomptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
405 mp_limb_t *tmp_roomptr = NULL;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
406 mp_limb_t *q_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
407 size_t q_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
408 mp_limb_t *r_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
409 size_t r_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
410
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
411 /* Allocate room for a_len+2 digits.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
412 (Need a_len+1 digits for the real division and 1 more digit for the
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
413 final rounding of q.) */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
414 roomptr = (mp_limb_t *) malloc ((a_len + 2) * sizeof (mp_limb_t));
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
415 if (roomptr == NULL)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
416 return NULL;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
417
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
418 /* Normalise a. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
419 while (a_len > 0 && a_ptr[a_len - 1] == 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
420 a_len--;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
421
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
422 /* Normalise b. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
423 for (;;)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
424 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
425 if (b_len == 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
426 /* Division by zero. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
427 abort ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
428 if (b_ptr[b_len - 1] == 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
429 b_len--;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
430 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
431 break;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
432 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
433
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
434 /* Here m = a_len >= 0 and n = b_len > 0. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
435
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
436 if (a_len < b_len)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
437 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
438 /* m<n: trivial case. q=0, r := copy of a. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
439 r_ptr = roomptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
440 r_len = a_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
441 memcpy (r_ptr, a_ptr, a_len * sizeof (mp_limb_t));
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
442 q_ptr = roomptr + a_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
443 q_len = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
444 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
445 else if (b_len == 1)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
446 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
447 /* n=1: single precision division.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
448 beta^(m-1) <= a < beta^m ==> beta^(m-2) <= a/b < beta^m */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
449 r_ptr = roomptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
450 q_ptr = roomptr + 1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
451 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
452 mp_limb_t den = b_ptr[0];
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
453 mp_limb_t remainder = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
454 const mp_limb_t *sourceptr = a_ptr + a_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
455 mp_limb_t *destptr = q_ptr + a_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
456 size_t count;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
457 for (count = a_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
458 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
459 mp_twolimb_t num =
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
460 ((mp_twolimb_t) remainder << GMP_LIMB_BITS) | *--sourceptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
461 *--destptr = num / den;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
462 remainder = num % den;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
463 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
464 /* Normalise and store r. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
465 if (remainder > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
466 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
467 r_ptr[0] = remainder;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
468 r_len = 1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
469 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
470 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
471 r_len = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
472 /* Normalise q. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
473 q_len = a_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
474 if (q_ptr[q_len - 1] == 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
475 q_len--;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
476 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
477 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
478 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
479 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
480 /* n>1: multiple precision division.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
481 beta^(m-1) <= a < beta^m, beta^(n-1) <= b < beta^n ==>
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
482 beta^(m-n-1) <= a/b < beta^(m-n+1). */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
483 /* Determine s. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
484 size_t s;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
485 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
486 mp_limb_t msd = b_ptr[b_len - 1]; /* = b[n-1], > 0 */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
487 s = 31;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
488 if (msd >= 0x10000)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
489 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
490 msd = msd >> 16;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
491 s -= 16;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
492 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
493 if (msd >= 0x100)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
494 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
495 msd = msd >> 8;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
496 s -= 8;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
497 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
498 if (msd >= 0x10)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
499 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
500 msd = msd >> 4;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
501 s -= 4;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
502 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
503 if (msd >= 0x4)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
504 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
505 msd = msd >> 2;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
506 s -= 2;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
507 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
508 if (msd >= 0x2)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
509 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
510 msd = msd >> 1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
511 s -= 1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
512 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
513 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
514 /* 0 <= s < GMP_LIMB_BITS.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
515 Copy b, shifting it left by s bits. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
516 if (s > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
517 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
518 tmp_roomptr = (mp_limb_t *) malloc (b_len * sizeof (mp_limb_t));
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
519 if (tmp_roomptr == NULL)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
520 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
521 free (roomptr);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
522 return NULL;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
523 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
524 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
525 const mp_limb_t *sourceptr = b_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
526 mp_limb_t *destptr = tmp_roomptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
527 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
528 size_t count;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
529 for (count = b_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
530 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
531 accu += (mp_twolimb_t) *sourceptr++ << s;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
532 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
533 accu = accu >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
534 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
535 /* accu must be zero, since that was how s was determined. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
536 if (accu != 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
537 abort ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
538 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
539 b_ptr = tmp_roomptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
540 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
541 /* Copy a, shifting it left by s bits, yields r.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
542 Memory layout:
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
543 At the beginning: r = roomptr[0..a_len],
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
544 at the end: r = roomptr[0..b_len-1], q = roomptr[b_len..a_len] */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
545 r_ptr = roomptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
546 if (s == 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
547 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
548 memcpy (r_ptr, a_ptr, a_len * sizeof (mp_limb_t));
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
549 r_ptr[a_len] = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
550 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
551 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
552 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
553 const mp_limb_t *sourceptr = a_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
554 mp_limb_t *destptr = r_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
555 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
556 size_t count;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
557 for (count = a_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
558 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
559 accu += (mp_twolimb_t) *sourceptr++ << s;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
560 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
561 accu = accu >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
562 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
563 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
564 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
565 q_ptr = roomptr + b_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
566 q_len = a_len - b_len + 1; /* q will have m-n+1 limbs */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
567 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
568 size_t j = a_len - b_len; /* m-n */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
569 mp_limb_t b_msd = b_ptr[b_len - 1]; /* b[n-1] */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
570 mp_limb_t b_2msd = b_ptr[b_len - 2]; /* b[n-2] */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
571 mp_twolimb_t b_msdd = /* b[n-1]*beta+b[n-2] */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
572 ((mp_twolimb_t) b_msd << GMP_LIMB_BITS) | b_2msd;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
573 /* Division loop, traversed m-n+1 times.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
574 j counts down, b is unchanged, beta/2 <= b[n-1] < beta. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
575 for (;;)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
576 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
577 mp_limb_t q_star;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
578 mp_limb_t c1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
579 if (r_ptr[j + b_len] < b_msd) /* r[j+n] < b[n-1] ? */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
580 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
581 /* Divide r[j+n]*beta+r[j+n-1] by b[n-1], no overflow. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
582 mp_twolimb_t num =
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
583 ((mp_twolimb_t) r_ptr[j + b_len] << GMP_LIMB_BITS)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
584 | r_ptr[j + b_len - 1];
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
585 q_star = num / b_msd;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
586 c1 = num % b_msd;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
587 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
588 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
589 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
590 /* Overflow, hence r[j+n]*beta+r[j+n-1] >= beta*b[n-1]. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
591 q_star = (mp_limb_t)~(mp_limb_t)0; /* q* = beta-1 */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
592 /* Test whether r[j+n]*beta+r[j+n-1] - (beta-1)*b[n-1] >= beta
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
593 <==> r[j+n]*beta+r[j+n-1] + b[n-1] >= beta*b[n-1]+beta
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
594 <==> b[n-1] < floor((r[j+n]*beta+r[j+n-1]+b[n-1])/beta)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
595 {<= beta !}.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
596 If yes, jump directly to the subtraction loop.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
597 (Otherwise, r[j+n]*beta+r[j+n-1] - (beta-1)*b[n-1] < beta
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
598 <==> floor((r[j+n]*beta+r[j+n-1]+b[n-1])/beta) = b[n-1] ) */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
599 if (r_ptr[j + b_len] > b_msd
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
600 || (c1 = r_ptr[j + b_len - 1] + b_msd) < b_msd)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
601 /* r[j+n] >= b[n-1]+1 or
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
602 r[j+n] = b[n-1] and the addition r[j+n-1]+b[n-1] gives a
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
603 carry. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
604 goto subtract;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
605 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
606 /* q_star = q*,
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
607 c1 = (r[j+n]*beta+r[j+n-1]) - q* * b[n-1] (>=0, <beta). */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
608 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
609 mp_twolimb_t c2 = /* c1*beta+r[j+n-2] */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
610 ((mp_twolimb_t) c1 << GMP_LIMB_BITS) | r_ptr[j + b_len - 2];
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
611 mp_twolimb_t c3 = /* b[n-2] * q* */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
612 (mp_twolimb_t) b_2msd * (mp_twolimb_t) q_star;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
613 /* While c2 < c3, increase c2 and decrease c3.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
614 Consider c3-c2. While it is > 0, decrease it by
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
615 b[n-1]*beta+b[n-2]. Because of b[n-1]*beta+b[n-2] >= beta^2/2
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
616 this can happen only twice. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
617 if (c3 > c2)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
618 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
619 q_star = q_star - 1; /* q* := q* - 1 */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
620 if (c3 - c2 > b_msdd)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
621 q_star = q_star - 1; /* q* := q* - 1 */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
622 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
623 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
624 if (q_star > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
625 subtract:
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
626 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
627 /* Subtract r := r - b * q* * beta^j. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
628 mp_limb_t cr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
629 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
630 const mp_limb_t *sourceptr = b_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
631 mp_limb_t *destptr = r_ptr + j;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
632 mp_twolimb_t carry = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
633 size_t count;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
634 for (count = b_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
635 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
636 /* Here 0 <= carry <= q*. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
637 carry =
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
638 carry
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
639 + (mp_twolimb_t) q_star * (mp_twolimb_t) *sourceptr++
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
640 + (mp_limb_t) ~(*destptr);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
641 /* Here 0 <= carry <= beta*q* + beta-1. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
642 *destptr++ = ~(mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
643 carry = carry >> GMP_LIMB_BITS; /* <= q* */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
644 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
645 cr = (mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
646 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
647 /* Subtract cr from r_ptr[j + b_len], then forget about
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
648 r_ptr[j + b_len]. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
649 if (cr > r_ptr[j + b_len])
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
650 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
651 /* Subtraction gave a carry. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
652 q_star = q_star - 1; /* q* := q* - 1 */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
653 /* Add b back. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
654 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
655 const mp_limb_t *sourceptr = b_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
656 mp_limb_t *destptr = r_ptr + j;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
657 mp_limb_t carry = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
658 size_t count;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
659 for (count = b_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
660 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
661 mp_limb_t source1 = *sourceptr++;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
662 mp_limb_t source2 = *destptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
663 *destptr++ = source1 + source2 + carry;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
664 carry =
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
665 (carry
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
666 ? source1 >= (mp_limb_t) ~source2
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
667 : source1 > (mp_limb_t) ~source2);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
668 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
669 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
670 /* Forget about the carry and about r[j+n]. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
671 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
672 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
673 /* q* is determined. Store it as q[j]. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
674 q_ptr[j] = q_star;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
675 if (j == 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
676 break;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
677 j--;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
678 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
679 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
680 r_len = b_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
681 /* Normalise q. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
682 if (q_ptr[q_len - 1] == 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
683 q_len--;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
684 # if 0 /* Not needed here, since we need r only to compare it with b/2, and
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
685 b is shifted left by s bits. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
686 /* Shift r right by s bits. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
687 if (s > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
688 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
689 mp_limb_t ptr = r_ptr + r_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
690 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
691 size_t count;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
692 for (count = r_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
693 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
694 accu = (mp_twolimb_t) (mp_limb_t) accu << GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
695 accu += (mp_twolimb_t) *--ptr << (GMP_LIMB_BITS - s);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
696 *ptr = (mp_limb_t) (accu >> GMP_LIMB_BITS);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
697 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
698 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
699 # endif
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
700 /* Normalise r. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
701 while (r_len > 0 && r_ptr[r_len - 1] == 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
702 r_len--;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
703 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
704 /* Compare r << 1 with b. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
705 if (r_len > b_len)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
706 goto increment_q;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
707 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
708 size_t i;
8835
c06bc412ffc3 Fix small bug in 'divide' function.
Bruno Haible <bruno@clisp.org>
parents: 8832
diff changeset
709 for (i = b_len;;)
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
710 {
8835
c06bc412ffc3 Fix small bug in 'divide' function.
Bruno Haible <bruno@clisp.org>
parents: 8832
diff changeset
711 mp_limb_t r_i =
c06bc412ffc3 Fix small bug in 'divide' function.
Bruno Haible <bruno@clisp.org>
parents: 8832
diff changeset
712 (i <= r_len && i > 0 ? r_ptr[i - 1] >> (GMP_LIMB_BITS - 1) : 0)
c06bc412ffc3 Fix small bug in 'divide' function.
Bruno Haible <bruno@clisp.org>
parents: 8832
diff changeset
713 | (i < r_len ? r_ptr[i] << 1 : 0);
c06bc412ffc3 Fix small bug in 'divide' function.
Bruno Haible <bruno@clisp.org>
parents: 8832
diff changeset
714 mp_limb_t b_i = (i < b_len ? b_ptr[i] : 0);
c06bc412ffc3 Fix small bug in 'divide' function.
Bruno Haible <bruno@clisp.org>
parents: 8832
diff changeset
715 if (r_i > b_i)
c06bc412ffc3 Fix small bug in 'divide' function.
Bruno Haible <bruno@clisp.org>
parents: 8832
diff changeset
716 goto increment_q;
c06bc412ffc3 Fix small bug in 'divide' function.
Bruno Haible <bruno@clisp.org>
parents: 8832
diff changeset
717 if (r_i < b_i)
c06bc412ffc3 Fix small bug in 'divide' function.
Bruno Haible <bruno@clisp.org>
parents: 8832
diff changeset
718 goto keep_q;
c06bc412ffc3 Fix small bug in 'divide' function.
Bruno Haible <bruno@clisp.org>
parents: 8832
diff changeset
719 if (i == 0)
c06bc412ffc3 Fix small bug in 'divide' function.
Bruno Haible <bruno@clisp.org>
parents: 8832
diff changeset
720 break;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
721 i--;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
722 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
723 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
724 if (q_len > 0 && ((q_ptr[0] & 1) != 0))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
725 /* q is odd. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
726 increment_q:
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
727 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
728 size_t i;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
729 for (i = 0; i < q_len; i++)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
730 if (++(q_ptr[i]) != 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
731 goto keep_q;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
732 q_ptr[q_len++] = 1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
733 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
734 keep_q:
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
735 if (tmp_roomptr != NULL)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
736 free (tmp_roomptr);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
737 q->limbs = q_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
738 q->nlimbs = q_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
739 return roomptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
740 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
741
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
742 /* Convert a bignum a >= 0, multiplied with 10^extra_zeroes, to decimal
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
743 representation.
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
744 Destroys the contents of a.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
745 Return the allocated memory - containing the decimal digits in low-to-high
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
746 order, terminated with a NUL character - in case of success, NULL in case
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
747 of memory allocation failure. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
748 static char *
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
749 convert_to_decimal (mpn_t a, size_t extra_zeroes)
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
750 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
751 mp_limb_t *a_ptr = a.limbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
752 size_t a_len = a.nlimbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
753 /* 0.03345 is slightly larger than log(2)/(9*log(10)). */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
754 size_t c_len = 9 * ((size_t)(a_len * (GMP_LIMB_BITS * 0.03345f)) + 1);
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
755 char *c_ptr = (char *) malloc (xsum (c_len, extra_zeroes));
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
756 if (c_ptr != NULL)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
757 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
758 char *d_ptr = c_ptr;
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
759 for (; extra_zeroes > 0; extra_zeroes--)
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
760 *d_ptr++ = '0';
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
761 while (a_len > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
762 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
763 /* Divide a by 10^9, in-place. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
764 mp_limb_t remainder = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
765 mp_limb_t *ptr = a_ptr + a_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
766 size_t count;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
767 for (count = a_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
768 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
769 mp_twolimb_t num =
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
770 ((mp_twolimb_t) remainder << GMP_LIMB_BITS) | *--ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
771 *ptr = num / 1000000000;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
772 remainder = num % 1000000000;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
773 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
774 /* Store the remainder as 9 decimal digits. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
775 for (count = 9; count > 0; count--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
776 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
777 *d_ptr++ = '0' + (remainder % 10);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
778 remainder = remainder / 10;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
779 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
780 /* Normalize a. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
781 if (a_ptr[a_len - 1] == 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
782 a_len--;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
783 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
784 /* Remove leading zeroes. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
785 while (d_ptr > c_ptr && d_ptr[-1] == '0')
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
786 d_ptr--;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
787 /* But keep at least one zero. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
788 if (d_ptr == c_ptr)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
789 *d_ptr++ = '0';
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
790 /* Terminate the string. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
791 *d_ptr = '\0';
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
792 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
793 return c_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
794 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
795
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
796 # if NEED_PRINTF_LONG_DOUBLE
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
797
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
798 /* Assuming x is finite and >= 0:
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
799 write x as x = 2^e * m, where m is a bignum.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
800 Return the allocated memory in case of success, NULL in case of memory
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
801 allocation failure. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
802 static void *
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
803 decode_long_double (long double x, int *ep, mpn_t *mp)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
804 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
805 mpn_t m;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
806 int exp;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
807 long double y;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
808 size_t i;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
809
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
810 /* Allocate memory for result. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
811 m.nlimbs = (LDBL_MANT_BIT + GMP_LIMB_BITS - 1) / GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
812 m.limbs = (mp_limb_t *) malloc (m.nlimbs * sizeof (mp_limb_t));
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
813 if (m.limbs == NULL)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
814 return NULL;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
815 /* Split into exponential part and mantissa. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
816 y = frexpl (x, &exp);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
817 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
818 abort ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
819 /* x = 2^exp * y = 2^(exp - LDBL_MANT_BIT) * (y * LDBL_MANT_BIT), and the
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
820 latter is an integer. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
821 /* Convert the mantissa (y * LDBL_MANT_BIT) to a sequence of limbs.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
822 I'm not sure whether it's safe to cast a 'long double' value between
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
823 2^31 and 2^32 to 'unsigned int', therefore play safe and cast only
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
824 'long double' values between 0 and 2^16 (to 'unsigned int' or 'int',
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
825 doesn't matter). */
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
826 # if (LDBL_MANT_BIT % GMP_LIMB_BITS) != 0
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
827 # if (LDBL_MANT_BIT % GMP_LIMB_BITS) > GMP_LIMB_BITS / 2
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
828 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
829 mp_limb_t hi, lo;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
830 y *= (mp_limb_t) 1 << (LDBL_MANT_BIT % (GMP_LIMB_BITS / 2));
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
831 hi = (int) y;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
832 y -= hi;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
833 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
834 abort ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
835 y *= (mp_limb_t) 1 << (GMP_LIMB_BITS / 2);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
836 lo = (int) y;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
837 y -= lo;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
838 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
839 abort ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
840 m.limbs[LDBL_MANT_BIT / GMP_LIMB_BITS] = (hi << (GMP_LIMB_BITS / 2)) | lo;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
841 }
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
842 # else
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
843 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
844 mp_limb_t d;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
845 y *= (mp_limb_t) 1 << (LDBL_MANT_BIT % GMP_LIMB_BITS);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
846 d = (int) y;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
847 y -= d;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
848 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
849 abort ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
850 m.limbs[LDBL_MANT_BIT / GMP_LIMB_BITS] = d;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
851 }
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
852 # endif
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
853 # endif
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
854 for (i = LDBL_MANT_BIT / GMP_LIMB_BITS; i > 0; )
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
855 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
856 mp_limb_t hi, lo;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
857 y *= (mp_limb_t) 1 << (GMP_LIMB_BITS / 2);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
858 hi = (int) y;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
859 y -= hi;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
860 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
861 abort ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
862 y *= (mp_limb_t) 1 << (GMP_LIMB_BITS / 2);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
863 lo = (int) y;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
864 y -= lo;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
865 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
866 abort ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
867 m.limbs[--i] = (hi << (GMP_LIMB_BITS / 2)) | lo;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
868 }
9489
940605ef6e9e Don't abort if the 'long double' type has excess precision.
Bruno Haible <bruno@clisp.org>
parents: 9462
diff changeset
869 #if 0 /* On FreeBSD 6.1/x86, 'long double' numbers sometimes have excess
940605ef6e9e Don't abort if the 'long double' type has excess precision.
Bruno Haible <bruno@clisp.org>
parents: 9462
diff changeset
870 precision. */
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
871 if (!(y == 0.0L))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
872 abort ();
9489
940605ef6e9e Don't abort if the 'long double' type has excess precision.
Bruno Haible <bruno@clisp.org>
parents: 9462
diff changeset
873 #endif
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
874 /* Normalise. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
875 while (m.nlimbs > 0 && m.limbs[m.nlimbs - 1] == 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
876 m.nlimbs--;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
877 *mp = m;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
878 *ep = exp - LDBL_MANT_BIT;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
879 return m.limbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
880 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
881
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
882 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
883
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
884 # if NEED_PRINTF_DOUBLE
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
885
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
886 /* Assuming x is finite and >= 0:
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
887 write x as x = 2^e * m, where m is a bignum.
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
888 Return the allocated memory in case of success, NULL in case of memory
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
889 allocation failure. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
890 static void *
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
891 decode_double (double x, int *ep, mpn_t *mp)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
892 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
893 mpn_t m;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
894 int exp;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
895 double y;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
896 size_t i;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
897
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
898 /* Allocate memory for result. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
899 m.nlimbs = (DBL_MANT_BIT + GMP_LIMB_BITS - 1) / GMP_LIMB_BITS;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
900 m.limbs = (mp_limb_t *) malloc (m.nlimbs * sizeof (mp_limb_t));
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
901 if (m.limbs == NULL)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
902 return NULL;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
903 /* Split into exponential part and mantissa. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
904 y = frexp (x, &exp);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
905 if (!(y >= 0.0 && y < 1.0))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
906 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
907 /* x = 2^exp * y = 2^(exp - DBL_MANT_BIT) * (y * DBL_MANT_BIT), and the
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
908 latter is an integer. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
909 /* Convert the mantissa (y * DBL_MANT_BIT) to a sequence of limbs.
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
910 I'm not sure whether it's safe to cast a 'double' value between
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
911 2^31 and 2^32 to 'unsigned int', therefore play safe and cast only
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
912 'double' values between 0 and 2^16 (to 'unsigned int' or 'int',
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
913 doesn't matter). */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
914 # if (DBL_MANT_BIT % GMP_LIMB_BITS) != 0
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
915 # if (DBL_MANT_BIT % GMP_LIMB_BITS) > GMP_LIMB_BITS / 2
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
916 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
917 mp_limb_t hi, lo;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
918 y *= (mp_limb_t) 1 << (DBL_MANT_BIT % (GMP_LIMB_BITS / 2));
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
919 hi = (int) y;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
920 y -= hi;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
921 if (!(y >= 0.0 && y < 1.0))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
922 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
923 y *= (mp_limb_t) 1 << (GMP_LIMB_BITS / 2);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
924 lo = (int) y;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
925 y -= lo;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
926 if (!(y >= 0.0 && y < 1.0))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
927 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
928 m.limbs[DBL_MANT_BIT / GMP_LIMB_BITS] = (hi << (GMP_LIMB_BITS / 2)) | lo;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
929 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
930 # else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
931 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
932 mp_limb_t d;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
933 y *= (mp_limb_t) 1 << (DBL_MANT_BIT % GMP_LIMB_BITS);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
934 d = (int) y;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
935 y -= d;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
936 if (!(y >= 0.0 && y < 1.0))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
937 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
938 m.limbs[DBL_MANT_BIT / GMP_LIMB_BITS] = d;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
939 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
940 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
941 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
942 for (i = DBL_MANT_BIT / GMP_LIMB_BITS; i > 0; )
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
943 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
944 mp_limb_t hi, lo;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
945 y *= (mp_limb_t) 1 << (GMP_LIMB_BITS / 2);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
946 hi = (int) y;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
947 y -= hi;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
948 if (!(y >= 0.0 && y < 1.0))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
949 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
950 y *= (mp_limb_t) 1 << (GMP_LIMB_BITS / 2);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
951 lo = (int) y;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
952 y -= lo;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
953 if (!(y >= 0.0 && y < 1.0))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
954 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
955 m.limbs[--i] = (hi << (GMP_LIMB_BITS / 2)) | lo;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
956 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
957 if (!(y == 0.0))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
958 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
959 /* Normalise. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
960 while (m.nlimbs > 0 && m.limbs[m.nlimbs - 1] == 0)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
961 m.nlimbs--;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
962 *mp = m;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
963 *ep = exp - DBL_MANT_BIT;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
964 return m.limbs;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
965 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
966
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
967 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
968
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
969 /* Assuming x = 2^e * m is finite and >= 0, and n is an integer:
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
970 Returns the decimal representation of round (x * 10^n).
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
971 Return the allocated memory - containing the decimal digits in low-to-high
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
972 order, terminated with a NUL character - in case of success, NULL in case
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
973 of memory allocation failure. */
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
974 static char *
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
975 scale10_round_decimal_decoded (int e, mpn_t m, void *memory, int n)
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
976 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
977 int s;
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
978 size_t extra_zeroes;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
979 unsigned int abs_n;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
980 unsigned int abs_s;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
981 mp_limb_t *pow5_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
982 size_t pow5_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
983 unsigned int s_limbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
984 unsigned int s_bits;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
985 mpn_t pow5;
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
986 mpn_t z;
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
987 void *z_memory;
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
988 char *digits;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
989
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
990 if (memory == NULL)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
991 return NULL;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
992 /* x = 2^e * m, hence
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
993 y = round (2^e * 10^n * m) = round (2^(e+n) * 5^n * m)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
994 = round (2^s * 5^n * m). */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
995 s = e + n;
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
996 extra_zeroes = 0;
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
997 /* Factor out a common power of 10 if possible. */
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
998 if (s > 0 && n > 0)
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
999 {
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1000 extra_zeroes = (s < n ? s : n);
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1001 s -= extra_zeroes;
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1002 n -= extra_zeroes;
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1003 }
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1004 /* Here y = round (2^s * 5^n * m) * 10^extra_zeroes.
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1005 Before converting to decimal, we need to compute
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1006 z = round (2^s * 5^n * m). */
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1007 /* Compute 5^|n|, possibly shifted by |s| bits if n and s have the same
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1008 sign. 2.322 is slightly larger than log(5)/log(2). */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1009 abs_n = (n >= 0 ? n : -n);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1010 abs_s = (s >= 0 ? s : -s);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1011 pow5_ptr = (mp_limb_t *) malloc (((int)(abs_n * (2.322f / GMP_LIMB_BITS)) + 1
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1012 + abs_s / GMP_LIMB_BITS + 1)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1013 * sizeof (mp_limb_t));
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1014 if (pow5_ptr == NULL)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1015 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1016 free (memory);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1017 return NULL;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1018 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1019 /* Initialize with 1. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1020 pow5_ptr[0] = 1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1021 pow5_len = 1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1022 /* Multiply with 5^|n|. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1023 if (abs_n > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1024 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1025 static mp_limb_t const small_pow5[13 + 1] =
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1026 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1027 1, 5, 25, 125, 625, 3125, 15625, 78125, 390625, 1953125, 9765625,
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1028 48828125, 244140625, 1220703125
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1029 };
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1030 unsigned int n13;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1031 for (n13 = 0; n13 <= abs_n; n13 += 13)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1032 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1033 mp_limb_t digit1 = small_pow5[n13 + 13 <= abs_n ? 13 : abs_n - n13];
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1034 size_t j;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1035 mp_twolimb_t carry = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1036 for (j = 0; j < pow5_len; j++)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1037 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1038 mp_limb_t digit2 = pow5_ptr[j];
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1039 carry += (mp_twolimb_t) digit1 * (mp_twolimb_t) digit2;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1040 pow5_ptr[j] = (mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1041 carry = carry >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1042 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1043 if (carry > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1044 pow5_ptr[pow5_len++] = (mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1045 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1046 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1047 s_limbs = abs_s / GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1048 s_bits = abs_s % GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1049 if (n >= 0 ? s >= 0 : s <= 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1050 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1051 /* Multiply with 2^|s|. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1052 if (s_bits > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1053 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1054 mp_limb_t *ptr = pow5_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1055 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1056 size_t count;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1057 for (count = pow5_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1058 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1059 accu += (mp_twolimb_t) *ptr << s_bits;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1060 *ptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1061 accu = accu >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1062 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1063 if (accu > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1064 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1065 *ptr = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1066 pow5_len++;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1067 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1068 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1069 if (s_limbs > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1070 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1071 size_t count;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1072 for (count = pow5_len; count > 0;)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1073 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1074 count--;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1075 pow5_ptr[s_limbs + count] = pow5_ptr[count];
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1076 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1077 for (count = s_limbs; count > 0;)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1078 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1079 count--;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1080 pow5_ptr[count] = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1081 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1082 pow5_len += s_limbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1083 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1084 pow5.limbs = pow5_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1085 pow5.nlimbs = pow5_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1086 if (n >= 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1087 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1088 /* Multiply m with pow5. No division needed. */
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1089 z_memory = multiply (m, pow5, &z);
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1090 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1091 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1092 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1093 /* Divide m by pow5 and round. */
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1094 z_memory = divide (m, pow5, &z);
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1095 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1096 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1097 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1098 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1099 pow5.limbs = pow5_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1100 pow5.nlimbs = pow5_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1101 if (n >= 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1102 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1103 /* n >= 0, s < 0.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1104 Multiply m with pow5, then divide by 2^|s|. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1105 mpn_t numerator;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1106 mpn_t denominator;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1107 void *tmp_memory;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1108 tmp_memory = multiply (m, pow5, &numerator);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1109 if (tmp_memory == NULL)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1110 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1111 free (pow5_ptr);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1112 free (memory);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1113 return NULL;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1114 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1115 /* Construct 2^|s|. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1116 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1117 mp_limb_t *ptr = pow5_ptr + pow5_len;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1118 size_t i;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1119 for (i = 0; i < s_limbs; i++)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1120 ptr[i] = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1121 ptr[s_limbs] = (mp_limb_t) 1 << s_bits;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1122 denominator.limbs = ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1123 denominator.nlimbs = s_limbs + 1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1124 }
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1125 z_memory = divide (numerator, denominator, &z);
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1126 free (tmp_memory);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1127 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1128 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1129 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1130 /* n < 0, s > 0.
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1131 Multiply m with 2^s, then divide by pow5. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1132 mpn_t numerator;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1133 mp_limb_t *num_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1134 num_ptr = (mp_limb_t *) malloc ((m.nlimbs + s_limbs + 1)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1135 * sizeof (mp_limb_t));
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1136 if (num_ptr == NULL)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1137 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1138 free (pow5_ptr);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1139 free (memory);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1140 return NULL;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1141 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1142 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1143 mp_limb_t *destptr = num_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1144 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1145 size_t i;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1146 for (i = 0; i < s_limbs; i++)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1147 *destptr++ = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1148 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1149 if (s_bits > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1150 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1151 const mp_limb_t *sourceptr = m.limbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1152 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1153 size_t count;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1154 for (count = m.nlimbs; count > 0; count--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1155 {
9445
e0f2eeb1796a Fix output of floating-point values with large exponent.
Bruno Haible <bruno@clisp.org>
parents: 9442
diff changeset
1156 accu += (mp_twolimb_t) *sourceptr++ << s_bits;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1157 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1158 accu = accu >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1159 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1160 if (accu > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1161 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1162 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1163 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1164 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1165 const mp_limb_t *sourceptr = m.limbs;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1166 size_t count;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1167 for (count = m.nlimbs; count > 0; count--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1168 *destptr++ = *sourceptr++;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1169 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1170 numerator.limbs = num_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1171 numerator.nlimbs = destptr - num_ptr;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1172 }
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1173 z_memory = divide (numerator, pow5, &z);
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1174 free (num_ptr);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1175 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1176 }
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1177 free (pow5_ptr);
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1178 free (memory);
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1179
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1180 /* Here y = round (x * 10^n) = z * 10^extra_zeroes. */
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1181
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1182 if (z_memory == NULL)
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1183 return NULL;
8838
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1184 digits = convert_to_decimal (z, extra_zeroes);
db95bdbeb72c Optimize the case of huge precision.
Bruno Haible <bruno@clisp.org>
parents: 8837
diff changeset
1185 free (z_memory);
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1186 return digits;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1187 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1188
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1189 # if NEED_PRINTF_LONG_DOUBLE
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1190
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1191 /* Assuming x is finite and >= 0, and n is an integer:
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1192 Returns the decimal representation of round (x * 10^n).
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1193 Return the allocated memory - containing the decimal digits in low-to-high
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1194 order, terminated with a NUL character - in case of success, NULL in case
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1195 of memory allocation failure. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1196 static char *
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1197 scale10_round_decimal_long_double (long double x, int n)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1198 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1199 int e;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1200 mpn_t m;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1201 void *memory = decode_long_double (x, &e, &m);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1202 return scale10_round_decimal_decoded (e, m, memory, n);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1203 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1204
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1205 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1206
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1207 # if NEED_PRINTF_DOUBLE
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1208
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1209 /* Assuming x is finite and >= 0, and n is an integer:
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1210 Returns the decimal representation of round (x * 10^n).
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1211 Return the allocated memory - containing the decimal digits in low-to-high
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1212 order, terminated with a NUL character - in case of success, NULL in case
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1213 of memory allocation failure. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1214 static char *
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1215 scale10_round_decimal_double (double x, int n)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1216 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1217 int e;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1218 mpn_t m;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1219 void *memory = decode_double (x, &e, &m);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1220 return scale10_round_decimal_decoded (e, m, memory, n);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1221 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1222
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1223 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1224
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1225 # if NEED_PRINTF_LONG_DOUBLE
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1226
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1227 /* Assuming x is finite and > 0:
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1228 Return an approximation for n with 10^n <= x < 10^(n+1).
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1229 The approximation is usually the right n, but may be off by 1 sometimes. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1230 static int
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1231 floorlog10l (long double x)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1232 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1233 int exp;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1234 long double y;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1235 double z;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1236 double l;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1237
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1238 /* Split into exponential part and mantissa. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1239 y = frexpl (x, &exp);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1240 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1241 abort ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1242 if (y == 0.0L)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1243 return INT_MIN;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1244 if (y < 0.5L)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1245 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1246 while (y < (1.0L / (1 << (GMP_LIMB_BITS / 2)) / (1 << (GMP_LIMB_BITS / 2))))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1247 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1248 y *= 1.0L * (1 << (GMP_LIMB_BITS / 2)) * (1 << (GMP_LIMB_BITS / 2));
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1249 exp -= GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1250 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1251 if (y < (1.0L / (1 << 16)))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1252 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1253 y *= 1.0L * (1 << 16);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1254 exp -= 16;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1255 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1256 if (y < (1.0L / (1 << 8)))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1257 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1258 y *= 1.0L * (1 << 8);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1259 exp -= 8;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1260 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1261 if (y < (1.0L / (1 << 4)))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1262 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1263 y *= 1.0L * (1 << 4);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1264 exp -= 4;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1265 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1266 if (y < (1.0L / (1 << 2)))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1267 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1268 y *= 1.0L * (1 << 2);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1269 exp -= 2;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1270 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1271 if (y < (1.0L / (1 << 1)))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1272 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1273 y *= 1.0L * (1 << 1);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1274 exp -= 1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1275 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1276 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1277 if (!(y >= 0.5L && y < 1.0L))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1278 abort ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1279 /* Compute an approximation for l = log2(x) = exp + log2(y). */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1280 l = exp;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1281 z = y;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1282 if (z < 0.70710678118654752444)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1283 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1284 z *= 1.4142135623730950488;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1285 l -= 0.5;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1286 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1287 if (z < 0.8408964152537145431)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1288 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1289 z *= 1.1892071150027210667;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1290 l -= 0.25;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1291 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1292 if (z < 0.91700404320467123175)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1293 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1294 z *= 1.0905077326652576592;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1295 l -= 0.125;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1296 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1297 if (z < 0.9576032806985736469)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1298 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1299 z *= 1.0442737824274138403;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1300 l -= 0.0625;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1301 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1302 /* Now 0.95 <= z <= 1.01. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1303 z = 1 - z;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1304 /* log(1-z) = - z - z^2/2 - z^3/3 - z^4/4 - ...
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1305 Four terms are enough to get an approximation with error < 10^-7. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1306 l -= z * (1.0 + z * (0.5 + z * ((1.0 / 3) + z * 0.25)));
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1307 /* Finally multiply with log(2)/log(10), yields an approximation for
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1308 log10(x). */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1309 l *= 0.30102999566398119523;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1310 /* Round down to the next integer. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1311 return (int) l + (l < 0 ? -1 : 0);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1312 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1313
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1314 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1315
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1316 # if NEED_PRINTF_DOUBLE
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1317
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1318 /* Assuming x is finite and > 0:
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1319 Return an approximation for n with 10^n <= x < 10^(n+1).
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1320 The approximation is usually the right n, but may be off by 1 sometimes. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1321 static int
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1322 floorlog10 (double x)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1323 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1324 int exp;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1325 double y;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1326 double z;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1327 double l;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1328
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1329 /* Split into exponential part and mantissa. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1330 y = frexp (x, &exp);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1331 if (!(y >= 0.0 && y < 1.0))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1332 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1333 if (y == 0.0)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1334 return INT_MIN;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1335 if (y < 0.5)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1336 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1337 while (y < (1.0 / (1 << (GMP_LIMB_BITS / 2)) / (1 << (GMP_LIMB_BITS / 2))))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1338 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1339 y *= 1.0 * (1 << (GMP_LIMB_BITS / 2)) * (1 << (GMP_LIMB_BITS / 2));
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1340 exp -= GMP_LIMB_BITS;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1341 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1342 if (y < (1.0 / (1 << 16)))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1343 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1344 y *= 1.0 * (1 << 16);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1345 exp -= 16;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1346 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1347 if (y < (1.0 / (1 << 8)))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1348 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1349 y *= 1.0 * (1 << 8);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1350 exp -= 8;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1351 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1352 if (y < (1.0 / (1 << 4)))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1353 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1354 y *= 1.0 * (1 << 4);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1355 exp -= 4;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1356 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1357 if (y < (1.0 / (1 << 2)))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1358 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1359 y *= 1.0 * (1 << 2);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1360 exp -= 2;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1361 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1362 if (y < (1.0 / (1 << 1)))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1363 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1364 y *= 1.0 * (1 << 1);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1365 exp -= 1;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1366 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1367 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1368 if (!(y >= 0.5 && y < 1.0))
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1369 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1370 /* Compute an approximation for l = log2(x) = exp + log2(y). */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1371 l = exp;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1372 z = y;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1373 if (z < 0.70710678118654752444)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1374 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1375 z *= 1.4142135623730950488;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1376 l -= 0.5;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1377 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1378 if (z < 0.8408964152537145431)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1379 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1380 z *= 1.1892071150027210667;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1381 l -= 0.25;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1382 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1383 if (z < 0.91700404320467123175)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1384 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1385 z *= 1.0905077326652576592;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1386 l -= 0.125;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1387 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1388 if (z < 0.9576032806985736469)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1389 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1390 z *= 1.0442737824274138403;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1391 l -= 0.0625;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1392 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1393 /* Now 0.95 <= z <= 1.01. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1394 z = 1 - z;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1395 /* log(1-z) = - z - z^2/2 - z^3/3 - z^4/4 - ...
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1396 Four terms are enough to get an approximation with error < 10^-7. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1397 l -= z * (1.0 + z * (0.5 + z * ((1.0 / 3) + z * 0.25)));
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1398 /* Finally multiply with log(2)/log(10), yields an approximation for
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1399 log10(x). */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1400 l *= 0.30102999566398119523;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1401 /* Round down to the next integer. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1402 return (int) l + (l < 0 ? -1 : 0);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1403 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1404
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1405 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
1406
9938
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1407 /* Tests whether a string of digits consists of exactly PRECISION zeroes and
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1408 a single '1' digit. */
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1409 static int
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1410 is_borderline (const char *digits, size_t precision)
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1411 {
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1412 for (; precision > 0; precision--, digits++)
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1413 if (*digits != '0')
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1414 return 0;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1415 if (*digits != '1')
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1416 return 0;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1417 digits++;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1418 return *digits == '\0';
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1419 }
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
1420
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1421 #endif
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
1422
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
1423 DCHAR_T *
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1424 VASNPRINTF (DCHAR_T *resultbuf, size_t *lengthp,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1425 const FCHAR_T *format, va_list args)
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1426 {
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
1427 DIRECTIVES d;
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1428 arguments a;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1429
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
1430 if (PRINTF_PARSE (format, &d, &a) < 0)
9438
290aa46b4526 Fix out-of-memory handling of vasnprintf.
Bruno Haible <bruno@clisp.org>
parents: 9371
diff changeset
1431 /* errno is already set. */
290aa46b4526 Fix out-of-memory handling of vasnprintf.
Bruno Haible <bruno@clisp.org>
parents: 9371
diff changeset
1432 return NULL;
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1433
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1434 #define CLEANUP() \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1435 free (d.dir); \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1436 if (a.arg) \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1437 free (a.arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1438
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1439 if (PRINTF_FETCHARGS (args, &a) < 0)
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1440 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1441 CLEANUP ();
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1442 errno = EINVAL;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1443 return NULL;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1444 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1445
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1446 {
4879
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1447 size_t buf_neededlength;
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
1448 TCHAR_T *buf;
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
1449 TCHAR_T *buf_malloced;
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
1450 const FCHAR_T *cp;
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1451 size_t i;
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
1452 DIRECTIVE *dp;
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1453 /* Output string accumulator. */
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
1454 DCHAR_T *result;
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1455 size_t allocated;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1456 size_t length;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1457
4879
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1458 /* Allocate a small buffer that will hold a directive passed to
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1459 sprintf or snprintf. */
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1460 buf_neededlength =
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1461 xsum4 (7, d.max_width_length, d.max_precision_length, 6);
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1462 #if HAVE_ALLOCA
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
1463 if (buf_neededlength < 4000 / sizeof (TCHAR_T))
4879
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1464 {
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
1465 buf = (TCHAR_T *) alloca (buf_neededlength * sizeof (TCHAR_T));
4879
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1466 buf_malloced = NULL;
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1467 }
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1468 else
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1469 #endif
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1470 {
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
1471 size_t buf_memsize = xtimes (buf_neededlength, sizeof (TCHAR_T));
4879
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1472 if (size_overflow_p (buf_memsize))
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1473 goto out_of_memory_1;
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
1474 buf = (TCHAR_T *) malloc (buf_memsize);
4879
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1475 if (buf == NULL)
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1476 goto out_of_memory_1;
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1477 buf_malloced = buf;
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1478 }
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
1479
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1480 if (resultbuf != NULL)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1481 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1482 result = resultbuf;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1483 allocated = *lengthp;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1484 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1485 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1486 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1487 result = NULL;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1488 allocated = 0;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1489 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1490 length = 0;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1491 /* Invariants:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1492 result is either == resultbuf or == NULL or malloc-allocated.
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1493 If length > 0, then result != NULL. */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1494
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1495 /* Ensures that allocated >= needed. Aborts through a jump to
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1496 out_of_memory if needed is SIZE_MAX or otherwise too big. */
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1497 #define ENSURE_ALLOCATION(needed) \
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
1498 if ((needed) > allocated) \
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
1499 { \
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1500 size_t memory_size; \
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
1501 DCHAR_T *memory; \
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
1502 \
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1503 allocated = (allocated > 0 ? xtimes (allocated, 2) : 12); \
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
1504 if ((needed) > allocated) \
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
1505 allocated = (needed); \
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
1506 memory_size = xtimes (allocated, sizeof (DCHAR_T)); \
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1507 if (size_overflow_p (memory_size)) \
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1508 goto out_of_memory; \
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
1509 if (result == resultbuf || result == NULL) \
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
1510 memory = (DCHAR_T *) malloc (memory_size); \
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
1511 else \
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
1512 memory = (DCHAR_T *) realloc (result, memory_size); \
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
1513 if (memory == NULL) \
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1514 goto out_of_memory; \
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
1515 if (result == resultbuf && length > 0) \
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1516 DCHAR_CPY (memory, result, length); \
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
1517 result = memory; \
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1518 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1519
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1520 for (cp = format, i = 0, dp = &d.dir[0]; ; cp = dp->dir_end, i++, dp++)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1521 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1522 if (cp != dp->dir_start)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1523 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1524 size_t n = dp->dir_start - cp;
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1525 size_t augmented_length = xsum (length, n);
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1526
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1527 ENSURE_ALLOCATION (augmented_length);
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1528 /* This copies a piece of FCHAR_T[] into a DCHAR_T[]. Here we
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1529 need that the format string contains only ASCII characters
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1530 if FCHAR_T and DCHAR_T are not the same type. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1531 if (sizeof (FCHAR_T) == sizeof (DCHAR_T))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1532 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1533 DCHAR_CPY (result + length, (const DCHAR_T *) cp, n);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1534 length = augmented_length;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1535 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1536 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1537 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1538 do
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1539 result[length++] = (unsigned char) *cp++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1540 while (--n > 0);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1541 }
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1542 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1543 if (i == d.count)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1544 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1545
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1546 /* Execute a single directive. */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1547 if (dp->conversion == '%')
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1548 {
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1549 size_t augmented_length;
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1550
4886
e4317f1f2e2c Use size_t instead of ssize_t.
Bruno Haible <bruno@clisp.org>
parents: 4879
diff changeset
1551 if (!(dp->arg_index == ARG_NONE))
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1552 abort ();
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1553 augmented_length = xsum (length, 1);
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1554 ENSURE_ALLOCATION (augmented_length);
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1555 result[length] = '%';
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
1556 length = augmented_length;
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1557 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1558 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1559 {
4886
e4317f1f2e2c Use size_t instead of ssize_t.
Bruno Haible <bruno@clisp.org>
parents: 4879
diff changeset
1560 if (!(dp->arg_index != ARG_NONE))
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1561 abort ();
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1562
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1563 if (dp->conversion == 'n')
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1564 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1565 switch (a.arg[dp->arg_index].type)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1566 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1567 case TYPE_COUNT_SCHAR_POINTER:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1568 *a.arg[dp->arg_index].a.a_count_schar_pointer = length;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1569 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1570 case TYPE_COUNT_SHORT_POINTER:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1571 *a.arg[dp->arg_index].a.a_count_short_pointer = length;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1572 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1573 case TYPE_COUNT_INT_POINTER:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1574 *a.arg[dp->arg_index].a.a_count_int_pointer = length;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1575 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1576 case TYPE_COUNT_LONGINT_POINTER:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1577 *a.arg[dp->arg_index].a.a_count_longint_pointer = length;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1578 break;
8051
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
1579 #if HAVE_LONG_LONG_INT
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1580 case TYPE_COUNT_LONGLONGINT_POINTER:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1581 *a.arg[dp->arg_index].a.a_count_longlongint_pointer = length;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1582 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1583 #endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1584 default:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1585 abort ();
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1586 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
1587 }
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1588 #if ENABLE_UNISTDIO
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1589 /* The unistdio extensions. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1590 else if (dp->conversion == 'U')
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1591 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1592 arg_type type = a.arg[dp->arg_index].type;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1593 int flags = dp->flags;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1594 int has_width;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1595 size_t width;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1596 int has_precision;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1597 size_t precision;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1598
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1599 has_width = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1600 width = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1601 if (dp->width_start != dp->width_end)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1602 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1603 if (dp->width_arg_index != ARG_NONE)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1604 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1605 int arg;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1606
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1607 if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1608 abort ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1609 arg = a.arg[dp->width_arg_index].a.a_int;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1610 if (arg < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1611 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1612 /* "A negative field width is taken as a '-' flag
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1613 followed by a positive field width." */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1614 flags |= FLAG_LEFT;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1615 width = (unsigned int) (-arg);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1616 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1617 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1618 width = arg;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1619 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1620 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1621 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1622 const FCHAR_T *digitp = dp->width_start;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1623
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1624 do
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1625 width = xsum (xtimes (width, 10), *digitp++ - '0');
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1626 while (digitp != dp->width_end);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1627 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1628 has_width = 1;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1629 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1630
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1631 has_precision = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1632 precision = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1633 if (dp->precision_start != dp->precision_end)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1634 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1635 if (dp->precision_arg_index != ARG_NONE)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1636 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1637 int arg;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1638
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1639 if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1640 abort ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1641 arg = a.arg[dp->precision_arg_index].a.a_int;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1642 /* "A negative precision is taken as if the precision
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1643 were omitted." */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1644 if (arg >= 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1645 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1646 precision = arg;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1647 has_precision = 1;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1648 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1649 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1650 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1651 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1652 const FCHAR_T *digitp = dp->precision_start + 1;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1653
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1654 precision = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1655 while (digitp != dp->precision_end)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1656 precision = xsum (xtimes (precision, 10), *digitp++ - '0');
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1657 has_precision = 1;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1658 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1659 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1660
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1661 switch (type)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1662 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1663 case TYPE_U8_STRING:
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1664 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1665 const uint8_t *arg = a.arg[dp->arg_index].a.a_u8_string;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1666 const uint8_t *arg_end;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1667 size_t characters;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1668
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1669 if (has_precision)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1670 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1671 /* Use only PRECISION characters, from the left. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1672 arg_end = arg;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1673 characters = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1674 for (; precision > 0; precision--)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1675 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1676 int count = u8_strmblen (arg_end);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1677 if (count == 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1678 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1679 if (count < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1680 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1681 if (!(result == resultbuf || result == NULL))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1682 free (result);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1683 if (buf_malloced != NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1684 free (buf_malloced);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1685 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1686 errno = EILSEQ;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1687 return NULL;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1688 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1689 arg_end += count;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1690 characters++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1691 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1692 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1693 else if (has_width)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1694 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1695 /* Use the entire string, and count the number of
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1696 characters. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1697 arg_end = arg;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1698 characters = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1699 for (;;)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1700 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1701 int count = u8_strmblen (arg_end);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1702 if (count == 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1703 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1704 if (count < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1705 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1706 if (!(result == resultbuf || result == NULL))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1707 free (result);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1708 if (buf_malloced != NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1709 free (buf_malloced);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1710 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1711 errno = EILSEQ;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1712 return NULL;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1713 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1714 arg_end += count;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1715 characters++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1716 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1717 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1718 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1719 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1720 /* Use the entire string. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1721 arg_end = arg + u8_strlen (arg);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1722 /* The number of characters doesn't matter. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1723 characters = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1724 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1725
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1726 if (has_width && width > characters
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1727 && !(dp->flags & FLAG_LEFT))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1728 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1729 size_t n = width - characters;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1730 ENSURE_ALLOCATION (xsum (length, n));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1731 DCHAR_SET (result + length, ' ', n);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1732 length += n;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1733 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1734
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1735 # if DCHAR_IS_UINT8_T
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1736 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1737 size_t n = arg_end - arg;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1738 ENSURE_ALLOCATION (xsum (length, n));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1739 DCHAR_CPY (result + length, arg, n);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1740 length += n;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1741 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1742 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1743 { /* Convert. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1744 DCHAR_T *converted = result + length;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1745 size_t converted_len = allocated - length;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1746 # if DCHAR_IS_TCHAR
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1747 /* Convert from UTF-8 to locale encoding. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1748 if (u8_conv_to_encoding (locale_charset (),
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1749 iconveh_question_mark,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1750 arg, arg_end - arg, NULL,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1751 &converted, &converted_len)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1752 < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1753 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1754 /* Convert from UTF-8 to UTF-16/UTF-32. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1755 converted =
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1756 U8_TO_DCHAR (arg, arg_end - arg,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1757 converted, &converted_len);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1758 if (converted == NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1759 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1760 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1761 int saved_errno = errno;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1762 if (!(result == resultbuf || result == NULL))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1763 free (result);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1764 if (buf_malloced != NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1765 free (buf_malloced);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1766 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1767 errno = saved_errno;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1768 return NULL;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1769 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1770 if (converted != result + length)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1771 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1772 ENSURE_ALLOCATION (xsum (length, converted_len));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1773 DCHAR_CPY (result + length, converted, converted_len);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1774 free (converted);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1775 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1776 length += converted_len;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1777 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1778 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1779
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1780 if (has_width && width > characters
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1781 && (dp->flags & FLAG_LEFT))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1782 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1783 size_t n = width - characters;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1784 ENSURE_ALLOCATION (xsum (length, n));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1785 DCHAR_SET (result + length, ' ', n);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1786 length += n;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1787 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1788 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1789 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1790
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1791 case TYPE_U16_STRING:
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1792 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1793 const uint16_t *arg = a.arg[dp->arg_index].a.a_u16_string;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1794 const uint16_t *arg_end;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1795 size_t characters;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1796
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1797 if (has_precision)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1798 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1799 /* Use only PRECISION characters, from the left. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1800 arg_end = arg;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1801 characters = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1802 for (; precision > 0; precision--)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1803 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1804 int count = u16_strmblen (arg_end);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1805 if (count == 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1806 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1807 if (count < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1808 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1809 if (!(result == resultbuf || result == NULL))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1810 free (result);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1811 if (buf_malloced != NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1812 free (buf_malloced);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1813 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1814 errno = EILSEQ;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1815 return NULL;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1816 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1817 arg_end += count;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1818 characters++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1819 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1820 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1821 else if (has_width)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1822 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1823 /* Use the entire string, and count the number of
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1824 characters. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1825 arg_end = arg;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1826 characters = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1827 for (;;)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1828 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1829 int count = u16_strmblen (arg_end);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1830 if (count == 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1831 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1832 if (count < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1833 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1834 if (!(result == resultbuf || result == NULL))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1835 free (result);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1836 if (buf_malloced != NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1837 free (buf_malloced);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1838 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1839 errno = EILSEQ;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1840 return NULL;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1841 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1842 arg_end += count;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1843 characters++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1844 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1845 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1846 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1847 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1848 /* Use the entire string. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1849 arg_end = arg + u16_strlen (arg);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1850 /* The number of characters doesn't matter. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1851 characters = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1852 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1853
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1854 if (has_width && width > characters
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1855 && !(dp->flags & FLAG_LEFT))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1856 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1857 size_t n = width - characters;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1858 ENSURE_ALLOCATION (xsum (length, n));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1859 DCHAR_SET (result + length, ' ', n);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1860 length += n;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1861 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1862
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1863 # if DCHAR_IS_UINT16_T
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1864 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1865 size_t n = arg_end - arg;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1866 ENSURE_ALLOCATION (xsum (length, n));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1867 DCHAR_CPY (result + length, arg, n);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1868 length += n;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1869 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1870 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1871 { /* Convert. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1872 DCHAR_T *converted = result + length;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1873 size_t converted_len = allocated - length;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1874 # if DCHAR_IS_TCHAR
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1875 /* Convert from UTF-16 to locale encoding. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1876 if (u16_conv_to_encoding (locale_charset (),
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1877 iconveh_question_mark,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1878 arg, arg_end - arg, NULL,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1879 &converted, &converted_len)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1880 < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1881 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1882 /* Convert from UTF-16 to UTF-8/UTF-32. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1883 converted =
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1884 U16_TO_DCHAR (arg, arg_end - arg,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1885 converted, &converted_len);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1886 if (converted == NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1887 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1888 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1889 int saved_errno = errno;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1890 if (!(result == resultbuf || result == NULL))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1891 free (result);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1892 if (buf_malloced != NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1893 free (buf_malloced);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1894 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1895 errno = saved_errno;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1896 return NULL;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1897 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1898 if (converted != result + length)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1899 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1900 ENSURE_ALLOCATION (xsum (length, converted_len));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1901 DCHAR_CPY (result + length, converted, converted_len);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1902 free (converted);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1903 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1904 length += converted_len;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1905 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1906 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1907
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1908 if (has_width && width > characters
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1909 && (dp->flags & FLAG_LEFT))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1910 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1911 size_t n = width - characters;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1912 ENSURE_ALLOCATION (xsum (length, n));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1913 DCHAR_SET (result + length, ' ', n);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1914 length += n;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1915 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1916 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1917 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1918
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1919 case TYPE_U32_STRING:
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1920 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1921 const uint32_t *arg = a.arg[dp->arg_index].a.a_u32_string;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1922 const uint32_t *arg_end;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1923 size_t characters;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1924
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1925 if (has_precision)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1926 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1927 /* Use only PRECISION characters, from the left. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1928 arg_end = arg;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1929 characters = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1930 for (; precision > 0; precision--)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1931 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1932 int count = u32_strmblen (arg_end);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1933 if (count == 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1934 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1935 if (count < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1936 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1937 if (!(result == resultbuf || result == NULL))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1938 free (result);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1939 if (buf_malloced != NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1940 free (buf_malloced);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1941 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1942 errno = EILSEQ;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1943 return NULL;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1944 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1945 arg_end += count;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1946 characters++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1947 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1948 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1949 else if (has_width)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1950 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1951 /* Use the entire string, and count the number of
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1952 characters. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1953 arg_end = arg;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1954 characters = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1955 for (;;)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1956 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1957 int count = u32_strmblen (arg_end);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1958 if (count == 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1959 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1960 if (count < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1961 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1962 if (!(result == resultbuf || result == NULL))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1963 free (result);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1964 if (buf_malloced != NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1965 free (buf_malloced);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1966 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1967 errno = EILSEQ;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1968 return NULL;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1969 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1970 arg_end += count;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1971 characters++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1972 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1973 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1974 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1975 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1976 /* Use the entire string. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1977 arg_end = arg + u32_strlen (arg);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1978 /* The number of characters doesn't matter. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1979 characters = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1980 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1981
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1982 if (has_width && width > characters
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1983 && !(dp->flags & FLAG_LEFT))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1984 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1985 size_t n = width - characters;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1986 ENSURE_ALLOCATION (xsum (length, n));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1987 DCHAR_SET (result + length, ' ', n);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1988 length += n;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1989 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1990
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1991 # if DCHAR_IS_UINT32_T
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1992 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1993 size_t n = arg_end - arg;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1994 ENSURE_ALLOCATION (xsum (length, n));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1995 DCHAR_CPY (result + length, arg, n);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1996 length += n;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1997 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1998 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
1999 { /* Convert. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2000 DCHAR_T *converted = result + length;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2001 size_t converted_len = allocated - length;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2002 # if DCHAR_IS_TCHAR
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2003 /* Convert from UTF-32 to locale encoding. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2004 if (u32_conv_to_encoding (locale_charset (),
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2005 iconveh_question_mark,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2006 arg, arg_end - arg, NULL,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2007 &converted, &converted_len)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2008 < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2009 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2010 /* Convert from UTF-32 to UTF-8/UTF-16. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2011 converted =
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2012 U32_TO_DCHAR (arg, arg_end - arg,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2013 converted, &converted_len);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2014 if (converted == NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2015 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2016 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2017 int saved_errno = errno;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2018 if (!(result == resultbuf || result == NULL))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2019 free (result);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2020 if (buf_malloced != NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2021 free (buf_malloced);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2022 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2023 errno = saved_errno;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2024 return NULL;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2025 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2026 if (converted != result + length)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2027 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2028 ENSURE_ALLOCATION (xsum (length, converted_len));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2029 DCHAR_CPY (result + length, converted, converted_len);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2030 free (converted);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2031 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2032 length += converted_len;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2033 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2034 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2035
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2036 if (has_width && width > characters
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2037 && (dp->flags & FLAG_LEFT))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2038 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2039 size_t n = width - characters;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2040 ENSURE_ALLOCATION (xsum (length, n));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2041 DCHAR_SET (result + length, ' ', n);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2042 length += n;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2043 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2044 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2045 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2046
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2047 default:
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2048 abort ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2049 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2050 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2051 #endif
9454
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2052 #if (NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_DOUBLE) && !defined IN_LIBINTL
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2053 else if ((dp->conversion == 'a' || dp->conversion == 'A')
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2054 # if !(NEED_PRINTF_DIRECTIVE_A || (NEED_PRINTF_LONG_DOUBLE && NEED_PRINTF_DOUBLE))
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2055 && (0
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2056 # if NEED_PRINTF_DOUBLE
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2057 || a.arg[dp->arg_index].type == TYPE_DOUBLE
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2058 # endif
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2059 # if NEED_PRINTF_LONG_DOUBLE
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2060 || a.arg[dp->arg_index].type == TYPE_LONGDOUBLE
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2061 # endif
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2062 )
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2063 # endif
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2064 )
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2065 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2066 arg_type type = a.arg[dp->arg_index].type;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2067 int flags = dp->flags;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2068 int has_width;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2069 size_t width;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2070 int has_precision;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2071 size_t precision;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2072 size_t tmp_length;
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2073 DCHAR_T tmpbuf[700];
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2074 DCHAR_T *tmp;
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2075 DCHAR_T *pad_ptr;
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2076 DCHAR_T *p;
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2077
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2078 has_width = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2079 width = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2080 if (dp->width_start != dp->width_end)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2081 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2082 if (dp->width_arg_index != ARG_NONE)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2083 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2084 int arg;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2085
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2086 if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2087 abort ();
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2088 arg = a.arg[dp->width_arg_index].a.a_int;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2089 if (arg < 0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2090 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2091 /* "A negative field width is taken as a '-' flag
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2092 followed by a positive field width." */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2093 flags |= FLAG_LEFT;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2094 width = (unsigned int) (-arg);
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2095 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2096 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2097 width = arg;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2098 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2099 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2100 {
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2101 const FCHAR_T *digitp = dp->width_start;
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2102
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2103 do
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2104 width = xsum (xtimes (width, 10), *digitp++ - '0');
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2105 while (digitp != dp->width_end);
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2106 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2107 has_width = 1;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2108 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2109
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2110 has_precision = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2111 precision = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2112 if (dp->precision_start != dp->precision_end)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2113 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2114 if (dp->precision_arg_index != ARG_NONE)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2115 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2116 int arg;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2117
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2118 if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2119 abort ();
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2120 arg = a.arg[dp->precision_arg_index].a.a_int;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2121 /* "A negative precision is taken as if the precision
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2122 were omitted." */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2123 if (arg >= 0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2124 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2125 precision = arg;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2126 has_precision = 1;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2127 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2128 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2129 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2130 {
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2131 const FCHAR_T *digitp = dp->precision_start + 1;
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2132
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2133 precision = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2134 while (digitp != dp->precision_end)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2135 precision = xsum (xtimes (precision, 10), *digitp++ - '0');
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2136 has_precision = 1;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2137 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2138 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2139
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2140 /* Allocate a temporary buffer of sufficient size. */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2141 if (type == TYPE_LONGDOUBLE)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2142 tmp_length =
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2143 (unsigned int) ((LDBL_DIG + 1)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2144 * 0.831 /* decimal -> hexadecimal */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2145 )
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2146 + 1; /* turn floor into ceil */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2147 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2148 tmp_length =
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2149 (unsigned int) ((DBL_DIG + 1)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2150 * 0.831 /* decimal -> hexadecimal */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2151 )
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2152 + 1; /* turn floor into ceil */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2153 if (tmp_length < precision)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2154 tmp_length = precision;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2155 /* Account for sign, decimal point etc. */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2156 tmp_length = xsum (tmp_length, 12);
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2157
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2158 if (tmp_length < width)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2159 tmp_length = width;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2160
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2161 tmp_length = xsum (tmp_length, 1); /* account for trailing NUL */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2162
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2163 if (tmp_length <= sizeof (tmpbuf) / sizeof (DCHAR_T))
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2164 tmp = tmpbuf;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2165 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2166 {
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2167 size_t tmp_memsize = xtimes (tmp_length, sizeof (DCHAR_T));
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2168
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2169 if (size_overflow_p (tmp_memsize))
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2170 /* Overflow, would lead to out of memory. */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2171 goto out_of_memory;
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2172 tmp = (DCHAR_T *) malloc (tmp_memsize);
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2173 if (tmp == NULL)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2174 /* Out of memory. */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2175 goto out_of_memory;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2176 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2177
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2178 pad_ptr = NULL;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2179 p = tmp;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2180 if (type == TYPE_LONGDOUBLE)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2181 {
9454
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2182 # if NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_LONG_DOUBLE
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2183 long double arg = a.arg[dp->arg_index].a.a_longdouble;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2184
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2185 if (isnanl (arg))
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2186 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2187 if (dp->conversion == 'A')
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2188 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2189 *p++ = 'N'; *p++ = 'A'; *p++ = 'N';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2190 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2191 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2192 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2193 *p++ = 'n'; *p++ = 'a'; *p++ = 'n';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2194 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2195 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2196 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2197 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2198 int sign = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2199 DECL_LONG_DOUBLE_ROUNDING
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2200
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2201 BEGIN_LONG_DOUBLE_ROUNDING ();
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2202
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2203 if (signbit (arg)) /* arg < 0.0L or negative zero */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2204 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2205 sign = -1;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2206 arg = -arg;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2207 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2208
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2209 if (sign < 0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2210 *p++ = '-';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2211 else if (flags & FLAG_SHOWSIGN)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2212 *p++ = '+';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2213 else if (flags & FLAG_SPACE)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2214 *p++ = ' ';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2215
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2216 if (arg > 0.0L && arg + arg == arg)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2217 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2218 if (dp->conversion == 'A')
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2219 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2220 *p++ = 'I'; *p++ = 'N'; *p++ = 'F';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2221 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2222 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2223 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2224 *p++ = 'i'; *p++ = 'n'; *p++ = 'f';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2225 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2226 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2227 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2228 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2229 int exponent;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2230 long double mantissa;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2231
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2232 if (arg > 0.0L)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2233 mantissa = printf_frexpl (arg, &exponent);
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2234 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2235 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2236 exponent = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2237 mantissa = 0.0L;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2238 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2239
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2240 if (has_precision
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2241 && precision < (unsigned int) ((LDBL_DIG + 1) * 0.831) + 1)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2242 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2243 /* Round the mantissa. */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2244 long double tail = mantissa;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2245 size_t q;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2246
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2247 for (q = precision; ; q--)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2248 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2249 int digit = (int) tail;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2250 tail -= digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2251 if (q == 0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2252 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2253 if (digit & 1 ? tail >= 0.5L : tail > 0.5L)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2254 tail = 1 - tail;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2255 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2256 tail = - tail;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2257 break;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2258 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2259 tail *= 16.0L;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2260 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2261 if (tail != 0.0L)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2262 for (q = precision; q > 0; q--)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2263 tail *= 0.0625L;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2264 mantissa += tail;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2265 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2266
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2267 *p++ = '0';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2268 *p++ = dp->conversion - 'A' + 'X';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2269 pad_ptr = p;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2270 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2271 int digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2272
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2273 digit = (int) mantissa;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2274 mantissa -= digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2275 *p++ = '0' + digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2276 if ((flags & FLAG_ALT)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2277 || mantissa > 0.0L || precision > 0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2278 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2279 *p++ = decimal_point_char ();
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2280 /* This loop terminates because we assume
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2281 that FLT_RADIX is a power of 2. */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2282 while (mantissa > 0.0L)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2283 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2284 mantissa *= 16.0L;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2285 digit = (int) mantissa;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2286 mantissa -= digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2287 *p++ = digit
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2288 + (digit < 10
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2289 ? '0'
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2290 : dp->conversion - 10);
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2291 if (precision > 0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2292 precision--;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2293 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2294 while (precision > 0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2295 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2296 *p++ = '0';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2297 precision--;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2298 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2299 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2300 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2301 *p++ = dp->conversion - 'A' + 'P';
9454
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2302 # if WIDE_CHAR_VERSION
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2303 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2304 static const wchar_t decimal_format[] =
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2305 { '%', '+', 'd', '\0' };
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2306 SNPRINTF (p, 6 + 1, decimal_format, exponent);
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2307 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2308 while (*p != '\0')
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2309 p++;
9454
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2310 # else
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2311 if (sizeof (DCHAR_T) == 1)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2312 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2313 sprintf ((char *) p, "%+d", exponent);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2314 while (*p != '\0')
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2315 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2316 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2317 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2318 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2319 char expbuf[6 + 1];
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2320 const char *ep;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2321 sprintf (expbuf, "%+d", exponent);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2322 for (ep = expbuf; (*p = *ep) != '\0'; ep++)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2323 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2324 }
9454
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2325 # endif
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2326 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2327
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2328 END_LONG_DOUBLE_ROUNDING ();
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2329 }
9454
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2330 # else
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2331 abort ();
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2332 # endif
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2333 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2334 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2335 {
9454
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2336 # if NEED_PRINTF_DIRECTIVE_A || NEED_PRINTF_DOUBLE
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2337 double arg = a.arg[dp->arg_index].a.a_double;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2338
9646
a113e473cc98 Rename isnan, applicable to 'double' only, to isnand.
Bruno Haible <bruno@clisp.org>
parents: 9489
diff changeset
2339 if (isnand (arg))
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2340 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2341 if (dp->conversion == 'A')
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2342 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2343 *p++ = 'N'; *p++ = 'A'; *p++ = 'N';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2344 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2345 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2346 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2347 *p++ = 'n'; *p++ = 'a'; *p++ = 'n';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2348 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2349 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2350 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2351 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2352 int sign = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2353
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2354 if (signbit (arg)) /* arg < 0.0 or negative zero */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2355 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2356 sign = -1;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2357 arg = -arg;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2358 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2359
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2360 if (sign < 0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2361 *p++ = '-';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2362 else if (flags & FLAG_SHOWSIGN)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2363 *p++ = '+';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2364 else if (flags & FLAG_SPACE)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2365 *p++ = ' ';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2366
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2367 if (arg > 0.0 && arg + arg == arg)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2368 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2369 if (dp->conversion == 'A')
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2370 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2371 *p++ = 'I'; *p++ = 'N'; *p++ = 'F';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2372 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2373 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2374 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2375 *p++ = 'i'; *p++ = 'n'; *p++ = 'f';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2376 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2377 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2378 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2379 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2380 int exponent;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2381 double mantissa;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2382
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2383 if (arg > 0.0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2384 mantissa = printf_frexp (arg, &exponent);
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2385 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2386 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2387 exponent = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2388 mantissa = 0.0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2389 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2390
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2391 if (has_precision
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2392 && precision < (unsigned int) ((DBL_DIG + 1) * 0.831) + 1)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2393 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2394 /* Round the mantissa. */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2395 double tail = mantissa;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2396 size_t q;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2397
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2398 for (q = precision; ; q--)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2399 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2400 int digit = (int) tail;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2401 tail -= digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2402 if (q == 0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2403 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2404 if (digit & 1 ? tail >= 0.5 : tail > 0.5)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2405 tail = 1 - tail;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2406 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2407 tail = - tail;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2408 break;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2409 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2410 tail *= 16.0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2411 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2412 if (tail != 0.0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2413 for (q = precision; q > 0; q--)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2414 tail *= 0.0625;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2415 mantissa += tail;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2416 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2417
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2418 *p++ = '0';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2419 *p++ = dp->conversion - 'A' + 'X';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2420 pad_ptr = p;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2421 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2422 int digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2423
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2424 digit = (int) mantissa;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2425 mantissa -= digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2426 *p++ = '0' + digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2427 if ((flags & FLAG_ALT)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2428 || mantissa > 0.0 || precision > 0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2429 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2430 *p++ = decimal_point_char ();
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2431 /* This loop terminates because we assume
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2432 that FLT_RADIX is a power of 2. */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2433 while (mantissa > 0.0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2434 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2435 mantissa *= 16.0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2436 digit = (int) mantissa;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2437 mantissa -= digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2438 *p++ = digit
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2439 + (digit < 10
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2440 ? '0'
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2441 : dp->conversion - 10);
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2442 if (precision > 0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2443 precision--;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2444 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2445 while (precision > 0)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2446 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2447 *p++ = '0';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2448 precision--;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2449 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2450 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2451 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2452 *p++ = dp->conversion - 'A' + 'P';
9454
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2453 # if WIDE_CHAR_VERSION
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2454 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2455 static const wchar_t decimal_format[] =
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2456 { '%', '+', 'd', '\0' };
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2457 SNPRINTF (p, 6 + 1, decimal_format, exponent);
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2458 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2459 while (*p != '\0')
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2460 p++;
9454
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2461 # else
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2462 if (sizeof (DCHAR_T) == 1)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2463 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2464 sprintf ((char *) p, "%+d", exponent);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2465 while (*p != '\0')
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2466 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2467 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2468 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2469 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2470 char expbuf[6 + 1];
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2471 const char *ep;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2472 sprintf (expbuf, "%+d", exponent);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2473 for (ep = expbuf; (*p = *ep) != '\0'; ep++)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2474 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2475 }
9454
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2476 # endif
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2477 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2478 }
9454
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2479 # else
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2480 abort ();
265fad13afeb Fix the processing of finite numbers with the 'a' and 'A' directives.
Bruno Haible <bruno@clisp.org>
parents: 9450
diff changeset
2481 # endif
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2482 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2483 /* The generated string now extends from tmp to p, with the
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2484 zero padding insertion point being at pad_ptr. */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2485 if (has_width && p - tmp < width)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2486 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2487 size_t pad = width - (p - tmp);
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2488 DCHAR_T *end = p + pad;
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2489
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2490 if (flags & FLAG_LEFT)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2491 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2492 /* Pad with spaces on the right. */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2493 for (; pad > 0; pad--)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2494 *p++ = ' ';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2495 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2496 else if ((flags & FLAG_ZERO) && pad_ptr != NULL)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2497 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2498 /* Pad with zeroes. */
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2499 DCHAR_T *q = end;
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2500
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2501 while (p > pad_ptr)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2502 *--q = *--p;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2503 for (; pad > 0; pad--)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2504 *p++ = '0';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2505 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2506 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2507 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2508 /* Pad with spaces on the left. */
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2509 DCHAR_T *q = end;
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2510
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2511 while (p > tmp)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2512 *--q = *--p;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2513 for (; pad > 0; pad--)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2514 *p++ = ' ';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2515 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2516
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2517 p = end;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2518 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2519
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2520 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2521 size_t count = p - tmp;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2522
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2523 if (count >= tmp_length)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2524 /* tmp_length was incorrectly calculated - fix the
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2525 code above! */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2526 abort ();
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2527
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2528 /* Make room for the result. */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2529 if (count >= allocated - length)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2530 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2531 size_t n = xsum (length, count);
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2532
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2533 ENSURE_ALLOCATION (n);
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2534 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2535
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2536 /* Append the result. */
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2537 memcpy (result + length, tmp, count * sizeof (DCHAR_T));
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2538 if (tmp != tmpbuf)
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2539 free (tmp);
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2540 length += count;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2541 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2542 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2543 #endif
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2544 #if (NEED_PRINTF_INFINITE_DOUBLE || NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_LONG_DOUBLE || NEED_PRINTF_LONG_DOUBLE) && !defined IN_LIBINTL
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2545 else if ((dp->conversion == 'f' || dp->conversion == 'F'
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2546 || dp->conversion == 'e' || dp->conversion == 'E'
8916
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2547 || dp->conversion == 'g' || dp->conversion == 'G'
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A.
Bruno Haible <bruno@clisp.org>
parents: 8915
diff changeset
2548 || dp->conversion == 'a' || dp->conversion == 'A')
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2549 && (0
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2550 # if NEED_PRINTF_DOUBLE
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2551 || a.arg[dp->arg_index].type == TYPE_DOUBLE
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2552 # elif NEED_PRINTF_INFINITE_DOUBLE
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2553 || (a.arg[dp->arg_index].type == TYPE_DOUBLE
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2554 /* The systems (mingw) which produce wrong output
8865
9e203d8ade65 Stricter check for printf result for NaN arguments.
Bruno Haible <bruno@clisp.org>
parents: 8860
diff changeset
2555 for Inf, -Inf, and NaN also do so for -0.0.
9e203d8ade65 Stricter check for printf result for NaN arguments.
Bruno Haible <bruno@clisp.org>
parents: 8860
diff changeset
2556 Therefore we treat this case here as well. */
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2557 && is_infinite_or_zero (a.arg[dp->arg_index].a.a_double))
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2558 # endif
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2559 # if NEED_PRINTF_LONG_DOUBLE
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2560 || a.arg[dp->arg_index].type == TYPE_LONGDOUBLE
8860
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
2561 # elif NEED_PRINTF_INFINITE_LONG_DOUBLE
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
2562 || (a.arg[dp->arg_index].type == TYPE_LONGDOUBLE
8865
9e203d8ade65 Stricter check for printf result for NaN arguments.
Bruno Haible <bruno@clisp.org>
parents: 8860
diff changeset
2563 /* Some systems produce wrong output for Inf,
9e203d8ade65 Stricter check for printf result for NaN arguments.
Bruno Haible <bruno@clisp.org>
parents: 8860
diff changeset
2564 -Inf, and NaN. */
8860
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
2565 && is_infinitel (a.arg[dp->arg_index].a.a_longdouble))
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2566 # endif
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2567 ))
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2568 {
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2569 # if (NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE) && (NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_INFINITE_LONG_DOUBLE)
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2570 arg_type type = a.arg[dp->arg_index].type;
8846
6fe000202977 Fix a warning in last patch.
Bruno Haible <bruno@clisp.org>
parents: 8840
diff changeset
2571 # endif
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2572 int flags = dp->flags;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2573 int has_width;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2574 size_t width;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2575 int has_precision;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2576 size_t precision;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2577 size_t tmp_length;
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2578 DCHAR_T tmpbuf[700];
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2579 DCHAR_T *tmp;
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2580 DCHAR_T *pad_ptr;
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2581 DCHAR_T *p;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2582
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2583 has_width = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2584 width = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2585 if (dp->width_start != dp->width_end)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2586 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2587 if (dp->width_arg_index != ARG_NONE)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2588 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2589 int arg;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2590
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2591 if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2592 abort ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2593 arg = a.arg[dp->width_arg_index].a.a_int;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2594 if (arg < 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2595 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2596 /* "A negative field width is taken as a '-' flag
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2597 followed by a positive field width." */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2598 flags |= FLAG_LEFT;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2599 width = (unsigned int) (-arg);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2600 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2601 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2602 width = arg;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2603 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2604 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2605 {
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2606 const FCHAR_T *digitp = dp->width_start;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2607
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2608 do
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2609 width = xsum (xtimes (width, 10), *digitp++ - '0');
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2610 while (digitp != dp->width_end);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2611 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2612 has_width = 1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2613 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2614
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2615 has_precision = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2616 precision = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2617 if (dp->precision_start != dp->precision_end)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2618 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2619 if (dp->precision_arg_index != ARG_NONE)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2620 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2621 int arg;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2622
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2623 if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2624 abort ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2625 arg = a.arg[dp->precision_arg_index].a.a_int;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2626 /* "A negative precision is taken as if the precision
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2627 were omitted." */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2628 if (arg >= 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2629 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2630 precision = arg;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2631 has_precision = 1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2632 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2633 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2634 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2635 {
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2636 const FCHAR_T *digitp = dp->precision_start + 1;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2637
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2638 precision = 0;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2639 while (digitp != dp->precision_end)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2640 precision = xsum (xtimes (precision, 10), *digitp++ - '0');
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2641 has_precision = 1;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2642 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2643 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2644
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2645 /* POSIX specifies the default precision to be 6 for %f, %F,
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2646 %e, %E, but not for %g, %G. Implementations appear to use
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2647 the same default precision also for %g, %G. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2648 if (!has_precision)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2649 precision = 6;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2650
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2651 /* Allocate a temporary buffer of sufficient size. */
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2652 # if NEED_PRINTF_DOUBLE && NEED_PRINTF_LONG_DOUBLE
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2653 tmp_length = (type == TYPE_LONGDOUBLE ? LDBL_DIG + 1 : DBL_DIG + 1);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2654 # elif NEED_PRINTF_INFINITE_DOUBLE && NEED_PRINTF_LONG_DOUBLE
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2655 tmp_length = (type == TYPE_LONGDOUBLE ? LDBL_DIG + 1 : 0);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2656 # elif NEED_PRINTF_LONG_DOUBLE
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2657 tmp_length = LDBL_DIG + 1;
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2658 # elif NEED_PRINTF_DOUBLE
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2659 tmp_length = DBL_DIG + 1;
8860
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
2660 # else
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2661 tmp_length = 0;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2662 # endif
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2663 if (tmp_length < precision)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2664 tmp_length = precision;
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2665 # if NEED_PRINTF_LONG_DOUBLE
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2666 # if NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2667 if (type == TYPE_LONGDOUBLE)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2668 # endif
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2669 if (dp->conversion == 'f' || dp->conversion == 'F')
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2670 {
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2671 long double arg = a.arg[dp->arg_index].a.a_longdouble;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2672 if (!(isnanl (arg) || arg + arg == arg))
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2673 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2674 /* arg is finite and nonzero. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2675 int exponent = floorlog10l (arg < 0 ? -arg : arg);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2676 if (exponent >= 0 && tmp_length < exponent + precision)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2677 tmp_length = exponent + precision;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2678 }
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2679 }
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2680 # endif
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2681 # if NEED_PRINTF_DOUBLE
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2682 # if NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_INFINITE_LONG_DOUBLE
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2683 if (type == TYPE_DOUBLE)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2684 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2685 if (dp->conversion == 'f' || dp->conversion == 'F')
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2686 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2687 double arg = a.arg[dp->arg_index].a.a_double;
9646
a113e473cc98 Rename isnan, applicable to 'double' only, to isnand.
Bruno Haible <bruno@clisp.org>
parents: 9489
diff changeset
2688 if (!(isnand (arg) || arg + arg == arg))
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2689 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2690 /* arg is finite and nonzero. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2691 int exponent = floorlog10 (arg < 0 ? -arg : arg);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2692 if (exponent >= 0 && tmp_length < exponent + precision)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2693 tmp_length = exponent + precision;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2694 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2695 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2696 # endif
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2697 /* Account for sign, decimal point etc. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2698 tmp_length = xsum (tmp_length, 12);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2699
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2700 if (tmp_length < width)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2701 tmp_length = width;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2702
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2703 tmp_length = xsum (tmp_length, 1); /* account for trailing NUL */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2704
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2705 if (tmp_length <= sizeof (tmpbuf) / sizeof (DCHAR_T))
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2706 tmp = tmpbuf;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2707 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2708 {
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2709 size_t tmp_memsize = xtimes (tmp_length, sizeof (DCHAR_T));
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2710
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2711 if (size_overflow_p (tmp_memsize))
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2712 /* Overflow, would lead to out of memory. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2713 goto out_of_memory;
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
2714 tmp = (DCHAR_T *) malloc (tmp_memsize);
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2715 if (tmp == NULL)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2716 /* Out of memory. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2717 goto out_of_memory;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2718 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2719
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2720 pad_ptr = NULL;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2721 p = tmp;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2722
8860
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
2723 # if NEED_PRINTF_LONG_DOUBLE || NEED_PRINTF_INFINITE_LONG_DOUBLE
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
2724 # if NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2725 if (type == TYPE_LONGDOUBLE)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2726 # endif
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2727 {
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2728 long double arg = a.arg[dp->arg_index].a.a_longdouble;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2729
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2730 if (isnanl (arg))
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2731 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2732 if (dp->conversion >= 'A' && dp->conversion <= 'Z')
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2733 {
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2734 *p++ = 'N'; *p++ = 'A'; *p++ = 'N';
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2735 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2736 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2737 {
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2738 *p++ = 'n'; *p++ = 'a'; *p++ = 'n';
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2739 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2740 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2741 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2742 {
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2743 int sign = 0;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2744 DECL_LONG_DOUBLE_ROUNDING
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2745
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2746 BEGIN_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2747
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2748 if (signbit (arg)) /* arg < 0.0L or negative zero */
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2749 {
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2750 sign = -1;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2751 arg = -arg;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2752 }
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2753
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2754 if (sign < 0)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2755 *p++ = '-';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2756 else if (flags & FLAG_SHOWSIGN)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2757 *p++ = '+';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2758 else if (flags & FLAG_SPACE)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2759 *p++ = ' ';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2760
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2761 if (arg > 0.0L && arg + arg == arg)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2762 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2763 if (dp->conversion >= 'A' && dp->conversion <= 'Z')
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2764 {
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2765 *p++ = 'I'; *p++ = 'N'; *p++ = 'F';
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2766 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2767 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2768 {
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2769 *p++ = 'i'; *p++ = 'n'; *p++ = 'f';
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2770 }
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2771 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2772 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2773 {
8860
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
2774 # if NEED_PRINTF_LONG_DOUBLE
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2775 pad_ptr = p;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2776
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2777 if (dp->conversion == 'f' || dp->conversion == 'F')
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2778 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2779 char *digits;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2780 size_t ndigits;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2781
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2782 digits =
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2783 scale10_round_decimal_long_double (arg, precision);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2784 if (digits == NULL)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2785 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2786 END_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2787 goto out_of_memory;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2788 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2789 ndigits = strlen (digits);
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2790
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2791 if (ndigits > precision)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2792 do
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2793 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2794 --ndigits;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2795 *p++ = digits[ndigits];
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2796 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2797 while (ndigits > precision);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2798 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2799 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2800 /* Here ndigits <= precision. */
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2801 if ((flags & FLAG_ALT) || precision > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2802 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2803 *p++ = decimal_point_char ();
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2804 for (; precision > ndigits; precision--)
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2805 *p++ = '0';
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2806 while (ndigits > 0)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2807 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2808 --ndigits;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2809 *p++ = digits[ndigits];
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2810 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2811 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2812
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2813 free (digits);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2814 }
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2815 else if (dp->conversion == 'e' || dp->conversion == 'E')
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2816 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2817 int exponent;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2818
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2819 if (arg == 0.0L)
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2820 {
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2821 exponent = 0;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2822 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2823 if ((flags & FLAG_ALT) || precision > 0)
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2824 {
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2825 *p++ = decimal_point_char ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2826 for (; precision > 0; precision--)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2827 *p++ = '0';
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2828 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2829 }
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2830 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2831 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2832 /* arg > 0.0L. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2833 int adjusted;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2834 char *digits;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2835 size_t ndigits;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2836
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2837 exponent = floorlog10l (arg);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2838 adjusted = 0;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2839 for (;;)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2840 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2841 digits =
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2842 scale10_round_decimal_long_double (arg,
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2843 (int)precision - exponent);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2844 if (digits == NULL)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2845 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2846 END_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2847 goto out_of_memory;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2848 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2849 ndigits = strlen (digits);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2850
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2851 if (ndigits == precision + 1)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2852 break;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2853 if (ndigits < precision
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2854 || ndigits > precision + 2)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2855 /* The exponent was not guessed
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2856 precisely enough. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2857 abort ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2858 if (adjusted)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2859 /* None of two values of exponent is
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2860 the right one. Prevent an endless
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2861 loop. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2862 abort ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2863 free (digits);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2864 if (ndigits == precision)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2865 exponent -= 1;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2866 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2867 exponent += 1;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2868 adjusted = 1;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2869 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2870 /* Here ndigits = precision+1. */
9938
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2871 if (is_borderline (digits, precision))
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2872 {
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2873 /* Maybe the exponent guess was too high
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2874 and a smaller exponent can be reached
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2875 by turning a 10...0 into 9...9x. */
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2876 char *digits2 =
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2877 scale10_round_decimal_long_double (arg,
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2878 (int)precision - exponent + 1);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2879 if (digits2 == NULL)
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2880 {
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2881 free (digits);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2882 END_LONG_DOUBLE_ROUNDING ();
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2883 goto out_of_memory;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2884 }
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2885 if (strlen (digits2) == precision + 1)
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2886 {
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2887 free (digits);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2888 digits = digits2;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2889 exponent -= 1;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2890 }
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2891 else
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2892 free (digits2);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2893 }
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2894 /* Here ndigits = precision+1. */
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
2895
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2896 *p++ = digits[--ndigits];
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2897 if ((flags & FLAG_ALT) || precision > 0)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2898 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2899 *p++ = decimal_point_char ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2900 while (ndigits > 0)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2901 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2902 --ndigits;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2903 *p++ = digits[ndigits];
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2904 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2905 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2906
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2907 free (digits);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2908 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2909
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2910 *p++ = dp->conversion; /* 'e' or 'E' */
8860
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
2911 # if WIDE_CHAR_VERSION
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2912 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2913 static const wchar_t decimal_format[] =
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2914 { '%', '+', '.', '2', 'd', '\0' };
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2915 SNPRINTF (p, 6 + 1, decimal_format, exponent);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2916 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2917 while (*p != '\0')
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2918 p++;
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2919 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2920 if (sizeof (DCHAR_T) == 1)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2921 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2922 sprintf ((char *) p, "%+.2d", exponent);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2923 while (*p != '\0')
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2924 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2925 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2926 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2927 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2928 char expbuf[6 + 1];
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2929 const char *ep;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2930 sprintf (expbuf, "%+.2d", exponent);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2931 for (ep = expbuf; (*p = *ep) != '\0'; ep++)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2932 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2933 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
2934 # endif
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2935 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2936 else if (dp->conversion == 'g' || dp->conversion == 'G')
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2937 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2938 if (precision == 0)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2939 precision = 1;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2940 /* precision >= 1. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2941
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2942 if (arg == 0.0L)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2943 /* The exponent is 0, >= -4, < precision.
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2944 Use fixed-point notation. */
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2945 {
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2946 size_t ndigits = precision;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2947 /* Number of trailing zeroes that have to be
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2948 dropped. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2949 size_t nzeroes =
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2950 (flags & FLAG_ALT ? 0 : precision - 1);
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2951
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2952 --ndigits;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2953 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2954 if ((flags & FLAG_ALT) || ndigits > nzeroes)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2955 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2956 *p++ = decimal_point_char ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2957 while (ndigits > nzeroes)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2958 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2959 --ndigits;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2960 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2961 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2962 }
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2963 }
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2964 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2965 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2966 /* arg > 0.0L. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2967 int exponent;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2968 int adjusted;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2969 char *digits;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2970 size_t ndigits;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2971 size_t nzeroes;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2972
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2973 exponent = floorlog10l (arg);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2974 adjusted = 0;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2975 for (;;)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2976 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2977 digits =
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2978 scale10_round_decimal_long_double (arg,
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2979 (int)(precision - 1) - exponent);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2980 if (digits == NULL)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2981 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2982 END_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2983 goto out_of_memory;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2984 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2985 ndigits = strlen (digits);
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
2986
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2987 if (ndigits == precision)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2988 break;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2989 if (ndigits < precision - 1
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2990 || ndigits > precision + 1)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2991 /* The exponent was not guessed
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2992 precisely enough. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2993 abort ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2994 if (adjusted)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2995 /* None of two values of exponent is
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2996 the right one. Prevent an endless
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2997 loop. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2998 abort ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
2999 free (digits);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3000 if (ndigits < precision)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3001 exponent -= 1;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3002 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3003 exponent += 1;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3004 adjusted = 1;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3005 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3006 /* Here ndigits = precision. */
9938
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3007 if (is_borderline (digits, precision - 1))
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3008 {
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3009 /* Maybe the exponent guess was too high
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3010 and a smaller exponent can be reached
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3011 by turning a 10...0 into 9...9x. */
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3012 char *digits2 =
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3013 scale10_round_decimal_long_double (arg,
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3014 (int)(precision - 1) - exponent + 1);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3015 if (digits2 == NULL)
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3016 {
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3017 free (digits);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3018 END_LONG_DOUBLE_ROUNDING ();
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3019 goto out_of_memory;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3020 }
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3021 if (strlen (digits2) == precision)
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3022 {
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3023 free (digits);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3024 digits = digits2;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3025 exponent -= 1;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3026 }
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3027 else
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3028 free (digits2);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3029 }
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3030 /* Here ndigits = precision. */
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3031
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3032 /* Determine the number of trailing zeroes
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3033 that have to be dropped. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3034 nzeroes = 0;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3035 if ((flags & FLAG_ALT) == 0)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3036 while (nzeroes < ndigits
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3037 && digits[nzeroes] == '0')
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3038 nzeroes++;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3039
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3040 /* The exponent is now determined. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3041 if (exponent >= -4
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3042 && exponent < (long)precision)
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3043 {
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3044 /* Fixed-point notation:
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3045 max(exponent,0)+1 digits, then the
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3046 decimal point, then the remaining
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3047 digits without trailing zeroes. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3048 if (exponent >= 0)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3049 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3050 size_t count = exponent + 1;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3051 /* Note: count <= precision = ndigits. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3052 for (; count > 0; count--)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3053 *p++ = digits[--ndigits];
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3054 if ((flags & FLAG_ALT) || ndigits > nzeroes)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3055 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3056 *p++ = decimal_point_char ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3057 while (ndigits > nzeroes)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3058 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3059 --ndigits;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3060 *p++ = digits[ndigits];
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3061 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3062 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3063 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3064 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3065 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3066 size_t count = -exponent - 1;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3067 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3068 *p++ = decimal_point_char ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3069 for (; count > 0; count--)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3070 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3071 while (ndigits > nzeroes)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3072 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3073 --ndigits;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3074 *p++ = digits[ndigits];
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3075 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3076 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3077 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3078 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3079 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3080 /* Exponential notation. */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3081 *p++ = digits[--ndigits];
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3082 if ((flags & FLAG_ALT) || ndigits > nzeroes)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3083 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3084 *p++ = decimal_point_char ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3085 while (ndigits > nzeroes)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3086 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3087 --ndigits;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3088 *p++ = digits[ndigits];
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3089 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3090 }
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3091 *p++ = dp->conversion - 'G' + 'E'; /* 'e' or 'E' */
8860
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
3092 # if WIDE_CHAR_VERSION
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3093 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3094 static const wchar_t decimal_format[] =
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3095 { '%', '+', '.', '2', 'd', '\0' };
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3096 SNPRINTF (p, 6 + 1, decimal_format, exponent);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3097 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3098 while (*p != '\0')
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3099 p++;
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3100 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3101 if (sizeof (DCHAR_T) == 1)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3102 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3103 sprintf ((char *) p, "%+.2d", exponent);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3104 while (*p != '\0')
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3105 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3106 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3107 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3108 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3109 char expbuf[6 + 1];
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3110 const char *ep;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3111 sprintf (expbuf, "%+.2d", exponent);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3112 for (ep = expbuf; (*p = *ep) != '\0'; ep++)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3113 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3114 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3115 # endif
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3116 }
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3117
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3118 free (digits);
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3119 }
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3120 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3121 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3122 abort ();
8860
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
3123 # else
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
3124 /* arg is finite. */
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
3125 abort ();
771a56a41b5b Fix *printf result for NaN, Inf on AIX, Solaris, OSF/1.
Bruno Haible <bruno@clisp.org>
parents: 8846
diff changeset
3126 # endif
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3127 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3128
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3129 END_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3130 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3131 }
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3132 # if NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3133 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3134 # endif
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3135 # endif
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3136 # if NEED_PRINTF_DOUBLE || NEED_PRINTF_INFINITE_DOUBLE
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3137 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3138 double arg = a.arg[dp->arg_index].a.a_double;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3139
9646
a113e473cc98 Rename isnan, applicable to 'double' only, to isnand.
Bruno Haible <bruno@clisp.org>
parents: 9489
diff changeset
3140 if (isnand (arg))
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3141 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3142 if (dp->conversion >= 'A' && dp->conversion <= 'Z')
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3143 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3144 *p++ = 'N'; *p++ = 'A'; *p++ = 'N';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3145 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3146 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3147 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3148 *p++ = 'n'; *p++ = 'a'; *p++ = 'n';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3149 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3150 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3151 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3152 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3153 int sign = 0;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3154
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3155 if (signbit (arg)) /* arg < 0.0 or negative zero */
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3156 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3157 sign = -1;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3158 arg = -arg;
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3159 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3160
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3161 if (sign < 0)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3162 *p++ = '-';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3163 else if (flags & FLAG_SHOWSIGN)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3164 *p++ = '+';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3165 else if (flags & FLAG_SPACE)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3166 *p++ = ' ';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3167
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3168 if (arg > 0.0 && arg + arg == arg)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3169 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3170 if (dp->conversion >= 'A' && dp->conversion <= 'Z')
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3171 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3172 *p++ = 'I'; *p++ = 'N'; *p++ = 'F';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3173 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3174 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3175 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3176 *p++ = 'i'; *p++ = 'n'; *p++ = 'f';
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3177 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3178 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3179 else
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3180 {
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3181 # if NEED_PRINTF_DOUBLE
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3182 pad_ptr = p;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3183
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3184 if (dp->conversion == 'f' || dp->conversion == 'F')
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3185 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3186 char *digits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3187 size_t ndigits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3188
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3189 digits =
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3190 scale10_round_decimal_double (arg, precision);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3191 if (digits == NULL)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3192 goto out_of_memory;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3193 ndigits = strlen (digits);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3194
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3195 if (ndigits > precision)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3196 do
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3197 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3198 --ndigits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3199 *p++ = digits[ndigits];
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3200 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3201 while (ndigits > precision);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3202 else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3203 *p++ = '0';
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3204 /* Here ndigits <= precision. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3205 if ((flags & FLAG_ALT) || precision > 0)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3206 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3207 *p++ = decimal_point_char ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3208 for (; precision > ndigits; precision--)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3209 *p++ = '0';
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3210 while (ndigits > 0)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3211 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3212 --ndigits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3213 *p++ = digits[ndigits];
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3214 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3215 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3216
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3217 free (digits);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3218 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3219 else if (dp->conversion == 'e' || dp->conversion == 'E')
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3220 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3221 int exponent;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3222
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3223 if (arg == 0.0)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3224 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3225 exponent = 0;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3226 *p++ = '0';
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3227 if ((flags & FLAG_ALT) || precision > 0)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3228 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3229 *p++ = decimal_point_char ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3230 for (; precision > 0; precision--)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3231 *p++ = '0';
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3232 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3233 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3234 else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3235 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3236 /* arg > 0.0. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3237 int adjusted;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3238 char *digits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3239 size_t ndigits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3240
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3241 exponent = floorlog10 (arg);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3242 adjusted = 0;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3243 for (;;)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3244 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3245 digits =
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3246 scale10_round_decimal_double (arg,
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3247 (int)precision - exponent);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3248 if (digits == NULL)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3249 goto out_of_memory;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3250 ndigits = strlen (digits);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3251
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3252 if (ndigits == precision + 1)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3253 break;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3254 if (ndigits < precision
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3255 || ndigits > precision + 2)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3256 /* The exponent was not guessed
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3257 precisely enough. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3258 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3259 if (adjusted)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3260 /* None of two values of exponent is
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3261 the right one. Prevent an endless
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3262 loop. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3263 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3264 free (digits);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3265 if (ndigits == precision)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3266 exponent -= 1;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3267 else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3268 exponent += 1;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3269 adjusted = 1;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3270 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3271 /* Here ndigits = precision+1. */
9938
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3272 if (is_borderline (digits, precision))
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3273 {
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3274 /* Maybe the exponent guess was too high
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3275 and a smaller exponent can be reached
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3276 by turning a 10...0 into 9...9x. */
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3277 char *digits2 =
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3278 scale10_round_decimal_double (arg,
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3279 (int)precision - exponent + 1);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3280 if (digits2 == NULL)
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3281 {
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3282 free (digits);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3283 goto out_of_memory;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3284 }
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3285 if (strlen (digits2) == precision + 1)
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3286 {
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3287 free (digits);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3288 digits = digits2;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3289 exponent -= 1;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3290 }
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3291 else
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3292 free (digits2);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3293 }
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3294 /* Here ndigits = precision+1. */
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3295
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3296 *p++ = digits[--ndigits];
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3297 if ((flags & FLAG_ALT) || precision > 0)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3298 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3299 *p++ = decimal_point_char ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3300 while (ndigits > 0)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3301 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3302 --ndigits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3303 *p++ = digits[ndigits];
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3304 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3305 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3306
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3307 free (digits);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3308 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3309
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3310 *p++ = dp->conversion; /* 'e' or 'E' */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3311 # if WIDE_CHAR_VERSION
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3312 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3313 static const wchar_t decimal_format[] =
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3314 /* Produce the same number of exponent digits
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3315 as the native printf implementation. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3316 # if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3317 { '%', '+', '.', '3', 'd', '\0' };
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3318 # else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3319 { '%', '+', '.', '2', 'd', '\0' };
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3320 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3321 SNPRINTF (p, 6 + 1, decimal_format, exponent);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3322 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3323 while (*p != '\0')
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3324 p++;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3325 # else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3326 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3327 static const char decimal_format[] =
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3328 /* Produce the same number of exponent digits
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3329 as the native printf implementation. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3330 # if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3331 "%+.3d";
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3332 # else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3333 "%+.2d";
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3334 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3335 if (sizeof (DCHAR_T) == 1)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3336 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3337 sprintf ((char *) p, decimal_format, exponent);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3338 while (*p != '\0')
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3339 p++;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3340 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3341 else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3342 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3343 char expbuf[6 + 1];
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3344 const char *ep;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3345 sprintf (expbuf, decimal_format, exponent);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3346 for (ep = expbuf; (*p = *ep) != '\0'; ep++)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3347 p++;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3348 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3349 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3350 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3351 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3352 else if (dp->conversion == 'g' || dp->conversion == 'G')
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3353 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3354 if (precision == 0)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3355 precision = 1;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3356 /* precision >= 1. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3357
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3358 if (arg == 0.0)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3359 /* The exponent is 0, >= -4, < precision.
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3360 Use fixed-point notation. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3361 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3362 size_t ndigits = precision;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3363 /* Number of trailing zeroes that have to be
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3364 dropped. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3365 size_t nzeroes =
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3366 (flags & FLAG_ALT ? 0 : precision - 1);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3367
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3368 --ndigits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3369 *p++ = '0';
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3370 if ((flags & FLAG_ALT) || ndigits > nzeroes)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3371 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3372 *p++ = decimal_point_char ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3373 while (ndigits > nzeroes)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3374 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3375 --ndigits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3376 *p++ = '0';
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3377 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3378 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3379 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3380 else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3381 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3382 /* arg > 0.0. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3383 int exponent;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3384 int adjusted;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3385 char *digits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3386 size_t ndigits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3387 size_t nzeroes;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3388
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3389 exponent = floorlog10 (arg);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3390 adjusted = 0;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3391 for (;;)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3392 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3393 digits =
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3394 scale10_round_decimal_double (arg,
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3395 (int)(precision - 1) - exponent);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3396 if (digits == NULL)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3397 goto out_of_memory;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3398 ndigits = strlen (digits);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3399
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3400 if (ndigits == precision)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3401 break;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3402 if (ndigits < precision - 1
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3403 || ndigits > precision + 1)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3404 /* The exponent was not guessed
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3405 precisely enough. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3406 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3407 if (adjusted)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3408 /* None of two values of exponent is
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3409 the right one. Prevent an endless
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3410 loop. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3411 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3412 free (digits);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3413 if (ndigits < precision)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3414 exponent -= 1;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3415 else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3416 exponent += 1;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3417 adjusted = 1;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3418 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3419 /* Here ndigits = precision. */
9938
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3420 if (is_borderline (digits, precision - 1))
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3421 {
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3422 /* Maybe the exponent guess was too high
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3423 and a smaller exponent can be reached
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3424 by turning a 10...0 into 9...9x. */
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3425 char *digits2 =
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3426 scale10_round_decimal_double (arg,
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3427 (int)(precision - 1) - exponent + 1);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3428 if (digits2 == NULL)
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3429 {
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3430 free (digits);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3431 goto out_of_memory;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3432 }
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3433 if (strlen (digits2) == precision)
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3434 {
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3435 free (digits);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3436 digits = digits2;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3437 exponent -= 1;
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3438 }
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3439 else
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3440 free (digits2);
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3441 }
9f8c455639fc Fix rounding when a precision is given.
Bruno Haible <bruno@clisp.org>
parents: 9834
diff changeset
3442 /* Here ndigits = precision. */
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3443
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3444 /* Determine the number of trailing zeroes
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3445 that have to be dropped. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3446 nzeroes = 0;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3447 if ((flags & FLAG_ALT) == 0)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3448 while (nzeroes < ndigits
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3449 && digits[nzeroes] == '0')
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3450 nzeroes++;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3451
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3452 /* The exponent is now determined. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3453 if (exponent >= -4
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3454 && exponent < (long)precision)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3455 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3456 /* Fixed-point notation:
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3457 max(exponent,0)+1 digits, then the
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3458 decimal point, then the remaining
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3459 digits without trailing zeroes. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3460 if (exponent >= 0)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3461 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3462 size_t count = exponent + 1;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3463 /* Note: count <= precision = ndigits. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3464 for (; count > 0; count--)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3465 *p++ = digits[--ndigits];
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3466 if ((flags & FLAG_ALT) || ndigits > nzeroes)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3467 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3468 *p++ = decimal_point_char ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3469 while (ndigits > nzeroes)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3470 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3471 --ndigits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3472 *p++ = digits[ndigits];
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3473 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3474 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3475 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3476 else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3477 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3478 size_t count = -exponent - 1;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3479 *p++ = '0';
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3480 *p++ = decimal_point_char ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3481 for (; count > 0; count--)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3482 *p++ = '0';
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3483 while (ndigits > nzeroes)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3484 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3485 --ndigits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3486 *p++ = digits[ndigits];
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3487 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3488 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3489 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3490 else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3491 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3492 /* Exponential notation. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3493 *p++ = digits[--ndigits];
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3494 if ((flags & FLAG_ALT) || ndigits > nzeroes)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3495 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3496 *p++ = decimal_point_char ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3497 while (ndigits > nzeroes)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3498 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3499 --ndigits;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3500 *p++ = digits[ndigits];
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3501 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3502 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3503 *p++ = dp->conversion - 'G' + 'E'; /* 'e' or 'E' */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3504 # if WIDE_CHAR_VERSION
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3505 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3506 static const wchar_t decimal_format[] =
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3507 /* Produce the same number of exponent digits
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3508 as the native printf implementation. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3509 # if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3510 { '%', '+', '.', '3', 'd', '\0' };
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3511 # else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3512 { '%', '+', '.', '2', 'd', '\0' };
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3513 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3514 SNPRINTF (p, 6 + 1, decimal_format, exponent);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3515 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3516 while (*p != '\0')
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3517 p++;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3518 # else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3519 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3520 static const char decimal_format[] =
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3521 /* Produce the same number of exponent digits
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3522 as the native printf implementation. */
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3523 # if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3524 "%+.3d";
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3525 # else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3526 "%+.2d";
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3527 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3528 if (sizeof (DCHAR_T) == 1)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3529 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3530 sprintf ((char *) p, decimal_format, exponent);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3531 while (*p != '\0')
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3532 p++;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3533 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3534 else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3535 {
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3536 char expbuf[6 + 1];
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3537 const char *ep;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3538 sprintf (expbuf, decimal_format, exponent);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3539 for (ep = expbuf; (*p = *ep) != '\0'; ep++)
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3540 p++;
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3541 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3542 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3543 # endif
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3544 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3545
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3546 free (digits);
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3547 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3548 }
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3549 else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3550 abort ();
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3551 # else
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3552 /* arg is finite. */
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3553 if (!(arg == 0.0))
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3554 abort ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3555
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3556 pad_ptr = p;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3557
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3558 if (dp->conversion == 'f' || dp->conversion == 'F')
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3559 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3560 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3561 if ((flags & FLAG_ALT) || precision > 0)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3562 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3563 *p++ = decimal_point_char ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3564 for (; precision > 0; precision--)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3565 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3566 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3567 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3568 else if (dp->conversion == 'e' || dp->conversion == 'E')
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3569 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3570 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3571 if ((flags & FLAG_ALT) || precision > 0)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3572 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3573 *p++ = decimal_point_char ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3574 for (; precision > 0; precision--)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3575 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3576 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3577 *p++ = dp->conversion; /* 'e' or 'E' */
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3578 *p++ = '+';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3579 /* Produce the same number of exponent digits as
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3580 the native printf implementation. */
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3581 # if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3582 *p++ = '0';
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3583 # endif
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3584 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3585 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3586 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3587 else if (dp->conversion == 'g' || dp->conversion == 'G')
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3588 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3589 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3590 if (flags & FLAG_ALT)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3591 {
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3592 size_t ndigits =
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3593 (precision > 0 ? precision - 1 : 0);
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3594 *p++ = decimal_point_char ();
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3595 for (; ndigits > 0; --ndigits)
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3596 *p++ = '0';
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3597 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3598 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3599 else
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3600 abort ();
9442
ad275322f8f1 Fix *printf behaviour in out-of-memory situations on MacOS X and *BSD.
Bruno Haible <bruno@clisp.org>
parents: 9439
diff changeset
3601 # endif
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3602 }
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3603 }
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3604 }
8840
792e05ae7ac8 Fix *printf result for NaN, Inf, -0.0 on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8838
diff changeset
3605 # endif
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3606
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3607 /* The generated string now extends from tmp to p, with the
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3608 zero padding insertion point being at pad_ptr. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3609 if (has_width && p - tmp < width)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3610 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3611 size_t pad = width - (p - tmp);
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
3612 DCHAR_T *end = p + pad;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3613
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3614 if (flags & FLAG_LEFT)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3615 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3616 /* Pad with spaces on the right. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3617 for (; pad > 0; pad--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3618 *p++ = ' ';
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3619 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3620 else if ((flags & FLAG_ZERO) && pad_ptr != NULL)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3621 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3622 /* Pad with zeroes. */
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
3623 DCHAR_T *q = end;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3624
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3625 while (p > pad_ptr)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3626 *--q = *--p;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3627 for (; pad > 0; pad--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3628 *p++ = '0';
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3629 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3630 else
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3631 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3632 /* Pad with spaces on the left. */
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
3633 DCHAR_T *q = end;
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3634
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3635 while (p > tmp)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3636 *--q = *--p;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3637 for (; pad > 0; pad--)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3638 *p++ = ' ';
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3639 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3640
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3641 p = end;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3642 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3643
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3644 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3645 size_t count = p - tmp;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3646
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3647 if (count >= tmp_length)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3648 /* tmp_length was incorrectly calculated - fix the
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3649 code above! */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3650 abort ();
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3651
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3652 /* Make room for the result. */
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3653 if (count >= allocated - length)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3654 {
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3655 size_t n = xsum (length, count);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3656
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3657 ENSURE_ALLOCATION (n);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3658 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3659
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3660 /* Append the result. */
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
3661 memcpy (result + length, tmp, count * sizeof (DCHAR_T));
8832
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3662 if (tmp != tmpbuf)
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3663 free (tmp);
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3664 length += count;
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3665 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3666 }
1466c973f476 Add support for 'long double' number output.
Bruno Haible <bruno@clisp.org>
parents: 8831
diff changeset
3667 #endif
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3668 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3669 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3670 arg_type type = a.arg[dp->arg_index].type;
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3671 int flags = dp->flags;
9674
b69f1141e94f Fix *printf behaviour regarding the left-adjust flag on HP-UX 10.20.
Bruno Haible <bruno@clisp.org>
parents: 9672
diff changeset
3672 #if !USE_SNPRINTF || !DCHAR_IS_TCHAR || ENABLE_UNISTDIO || NEED_PRINTF_FLAG_LEFTADJUST || NEED_PRINTF_FLAG_ZERO || NEED_PRINTF_UNBOUNDED_PRECISION
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3673 int has_width;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3674 size_t width;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3675 #endif
9446
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3676 #if !USE_SNPRINTF || NEED_PRINTF_UNBOUNDED_PRECISION
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3677 int has_precision;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3678 size_t precision;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3679 #endif
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3680 #if NEED_PRINTF_UNBOUNDED_PRECISION
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3681 int prec_ourselves;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3682 #else
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3683 # define prec_ourselves 0
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3684 #endif
9674
b69f1141e94f Fix *printf behaviour regarding the left-adjust flag on HP-UX 10.20.
Bruno Haible <bruno@clisp.org>
parents: 9672
diff changeset
3685 #if NEED_PRINTF_FLAG_LEFTADJUST
b69f1141e94f Fix *printf behaviour regarding the left-adjust flag on HP-UX 10.20.
Bruno Haible <bruno@clisp.org>
parents: 9672
diff changeset
3686 # define pad_ourselves 1
b69f1141e94f Fix *printf behaviour regarding the left-adjust flag on HP-UX 10.20.
Bruno Haible <bruno@clisp.org>
parents: 9672
diff changeset
3687 #elif !DCHAR_IS_TCHAR || ENABLE_UNISTDIO || NEED_PRINTF_FLAG_ZERO || NEED_PRINTF_UNBOUNDED_PRECISION
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3688 int pad_ourselves;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3689 #else
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3690 # define pad_ourselves 0
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3691 #endif
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
3692 TCHAR_T *fbp;
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3693 unsigned int prefix_count;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3694 int prefixes[2];
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
3695 #if !USE_SNPRINTF
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
3696 size_t tmp_length;
8962
aea67e2678d9 Tweak last patch.
Bruno Haible <bruno@clisp.org>
parents: 8961
diff changeset
3697 TCHAR_T tmpbuf[700];
aea67e2678d9 Tweak last patch.
Bruno Haible <bruno@clisp.org>
parents: 8961
diff changeset
3698 TCHAR_T *tmp;
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3699 #endif
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3700
9674
b69f1141e94f Fix *printf behaviour regarding the left-adjust flag on HP-UX 10.20.
Bruno Haible <bruno@clisp.org>
parents: 9672
diff changeset
3701 #if !USE_SNPRINTF || !DCHAR_IS_TCHAR || ENABLE_UNISTDIO || NEED_PRINTF_FLAG_LEFTADJUST || NEED_PRINTF_FLAG_ZERO || NEED_PRINTF_UNBOUNDED_PRECISION
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3702 has_width = 0;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3703 width = 0;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3704 if (dp->width_start != dp->width_end)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3705 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3706 if (dp->width_arg_index != ARG_NONE)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3707 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3708 int arg;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3709
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3710 if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3711 abort ();
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3712 arg = a.arg[dp->width_arg_index].a.a_int;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3713 if (arg < 0)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3714 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3715 /* "A negative field width is taken as a '-' flag
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3716 followed by a positive field width." */
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3717 flags |= FLAG_LEFT;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3718 width = (unsigned int) (-arg);
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3719 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3720 else
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3721 width = arg;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3722 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3723 else
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3724 {
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
3725 const FCHAR_T *digitp = dp->width_start;
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3726
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3727 do
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3728 width = xsum (xtimes (width, 10), *digitp++ - '0');
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3729 while (digitp != dp->width_end);
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3730 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3731 has_width = 1;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3732 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3733 #endif
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3734
9446
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3735 #if !USE_SNPRINTF || NEED_PRINTF_UNBOUNDED_PRECISION
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3736 has_precision = 0;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3737 precision = 6;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3738 if (dp->precision_start != dp->precision_end)
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3739 {
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3740 if (dp->precision_arg_index != ARG_NONE)
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3741 {
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3742 int arg;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3743
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3744 if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3745 abort ();
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3746 arg = a.arg[dp->precision_arg_index].a.a_int;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3747 /* "A negative precision is taken as if the precision
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3748 were omitted." */
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3749 if (arg >= 0)
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3750 {
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3751 precision = arg;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3752 has_precision = 1;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3753 }
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3754 }
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3755 else
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3756 {
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3757 const FCHAR_T *digitp = dp->precision_start + 1;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3758
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3759 precision = 0;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3760 while (digitp != dp->precision_end)
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3761 precision = xsum (xtimes (precision, 10), *digitp++ - '0');
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3762 has_precision = 1;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3763 }
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3764 }
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3765 #endif
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
3766
9834
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3767 /* Decide whether to handle the precision ourselves. */
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3768 #if NEED_PRINTF_UNBOUNDED_PRECISION
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3769 switch (dp->conversion)
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3770 {
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3771 case 'd': case 'i': case 'u':
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3772 case 'o':
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3773 case 'x': case 'X': case 'p':
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3774 prec_ourselves = has_precision && (precision > 0);
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3775 break;
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3776 default:
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3777 prec_ourselves = 0;
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3778 break;
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3779 }
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3780 #endif
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3781
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3782 /* Decide whether to perform the padding ourselves. */
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3783 #if !NEED_PRINTF_FLAG_LEFTADJUST && (!DCHAR_IS_TCHAR || ENABLE_UNISTDIO || NEED_PRINTF_FLAG_ZERO || NEED_PRINTF_UNBOUNDED_PRECISION)
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3784 switch (dp->conversion)
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3785 {
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3786 # if !DCHAR_IS_TCHAR || ENABLE_UNISTDIO
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3787 /* If we need conversion from TCHAR_T[] to DCHAR_T[], we need
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3788 to perform the padding after this conversion. Functions
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3789 with unistdio extensions perform the padding based on
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3790 character count rather than element count. */
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3791 case 'c': case 's':
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3792 # endif
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3793 # if NEED_PRINTF_FLAG_ZERO
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3794 case 'f': case 'F': case 'e': case 'E': case 'g': case 'G':
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3795 case 'a': case 'A':
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3796 # endif
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3797 pad_ourselves = 1;
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3798 break;
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3799 default:
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3800 pad_ourselves = prec_ourselves;
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3801 break;
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3802 }
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3803 #endif
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3804
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
3805 #if !USE_SNPRINTF
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3806 /* Allocate a temporary buffer of sufficient size for calling
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3807 sprintf. */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3808 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3809 switch (dp->conversion)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3810 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3811
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3812 case 'd': case 'i': case 'u':
8051
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
3813 # if HAVE_LONG_LONG_INT
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3814 if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3815 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3816 (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3817 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3818 )
6583
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3819 + 1; /* turn floor into ceil */
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3820 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3821 # endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3822 if (type == TYPE_LONGINT || type == TYPE_ULONGINT)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3823 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3824 (unsigned int) (sizeof (unsigned long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3825 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3826 )
6583
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3827 + 1; /* turn floor into ceil */
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3828 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3829 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3830 (unsigned int) (sizeof (unsigned int) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3831 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3832 )
6583
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3833 + 1; /* turn floor into ceil */
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3834 if (tmp_length < precision)
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3835 tmp_length = precision;
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3836 /* Multiply by 2, as an estimate for FLAG_GROUP. */
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3837 tmp_length = xsum (tmp_length, tmp_length);
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3838 /* Add 1, to account for a leading sign. */
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3839 tmp_length = xsum (tmp_length, 1);
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3840 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3841
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3842 case 'o':
8051
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
3843 # if HAVE_LONG_LONG_INT
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3844 if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3845 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3846 (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3847 * 0.333334 /* binary -> octal */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3848 )
6583
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3849 + 1; /* turn floor into ceil */
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3850 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3851 # endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3852 if (type == TYPE_LONGINT || type == TYPE_ULONGINT)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3853 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3854 (unsigned int) (sizeof (unsigned long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3855 * 0.333334 /* binary -> octal */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3856 )
6583
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3857 + 1; /* turn floor into ceil */
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3858 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3859 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3860 (unsigned int) (sizeof (unsigned int) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3861 * 0.333334 /* binary -> octal */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3862 )
6583
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3863 + 1; /* turn floor into ceil */
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3864 if (tmp_length < precision)
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3865 tmp_length = precision;
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3866 /* Add 1, to account for a leading sign. */
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3867 tmp_length = xsum (tmp_length, 1);
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3868 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3869
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3870 case 'x': case 'X':
8051
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
3871 # if HAVE_LONG_LONG_INT
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3872 if (type == TYPE_LONGLONGINT || type == TYPE_ULONGLONGINT)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3873 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3874 (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3875 * 0.25 /* binary -> hexadecimal */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3876 )
6583
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3877 + 1; /* turn floor into ceil */
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3878 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3879 # endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3880 if (type == TYPE_LONGINT || type == TYPE_ULONGINT)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3881 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3882 (unsigned int) (sizeof (unsigned long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3883 * 0.25 /* binary -> hexadecimal */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3884 )
6583
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3885 + 1; /* turn floor into ceil */
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3886 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3887 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3888 (unsigned int) (sizeof (unsigned int) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3889 * 0.25 /* binary -> hexadecimal */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3890 )
6583
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3891 + 1; /* turn floor into ceil */
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3892 if (tmp_length < precision)
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3893 tmp_length = precision;
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3894 /* Add 2, to account for a leading sign or alternate form. */
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size.
Bruno Haible <bruno@clisp.org>
parents: 5848
diff changeset
3895 tmp_length = xsum (tmp_length, 2);
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3896 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3897
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3898 case 'f': case 'F':
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3899 if (type == TYPE_LONGDOUBLE)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3900 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3901 (unsigned int) (LDBL_MAX_EXP
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3902 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3903 * 2 /* estimate for FLAG_GROUP */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3904 )
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3905 + 1 /* turn floor into ceil */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3906 + 10; /* sign, decimal point etc. */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3907 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3908 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3909 (unsigned int) (DBL_MAX_EXP
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3910 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3911 * 2 /* estimate for FLAG_GROUP */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3912 )
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3913 + 1 /* turn floor into ceil */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3914 + 10; /* sign, decimal point etc. */
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
3915 tmp_length = xsum (tmp_length, precision);
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3916 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3917
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3918 case 'e': case 'E': case 'g': case 'G':
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3919 tmp_length =
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
3920 12; /* sign, decimal point, exponent etc. */
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
3921 tmp_length = xsum (tmp_length, precision);
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3922 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3923
8254
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3924 case 'a': case 'A':
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3925 if (type == TYPE_LONGDOUBLE)
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3926 tmp_length =
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3927 (unsigned int) (LDBL_DIG
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3928 * 0.831 /* decimal -> hexadecimal */
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3929 )
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3930 + 1; /* turn floor into ceil */
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3931 else
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3932 tmp_length =
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3933 (unsigned int) (DBL_DIG
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3934 * 0.831 /* decimal -> hexadecimal */
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3935 )
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3936 + 1; /* turn floor into ceil */
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3937 if (tmp_length < precision)
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3938 tmp_length = precision;
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3939 /* Account for sign, decimal point etc. */
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3940 tmp_length = xsum (tmp_length, 12);
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3941 break;
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion.
Bruno Haible <bruno@clisp.org>
parents: 8051
diff changeset
3942
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3943 case 'c':
8051
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
3944 # if HAVE_WINT_T && !WIDE_CHAR_VERSION
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3945 if (type == TYPE_WIDE_CHAR)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3946 tmp_length = MB_CUR_MAX;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3947 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3948 # endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3949 tmp_length = 1;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3950 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3951
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3952 case 's':
8051
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
3953 # if HAVE_WCHAR_T
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3954 if (type == TYPE_WIDE_STRING)
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
3955 {
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
3956 tmp_length =
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
3957 local_wcslen (a.arg[dp->arg_index].a.a_wide_string);
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
3958
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
3959 # if !WIDE_CHAR_VERSION
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
3960 tmp_length = xtimes (tmp_length, MB_CUR_MAX);
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
3961 # endif
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
3962 }
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3963 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3964 # endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3965 tmp_length = strlen (a.arg[dp->arg_index].a.a_string);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3966 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3967
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3968 case 'p':
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3969 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3970 (unsigned int) (sizeof (void *) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3971 * 0.25 /* binary -> hexadecimal */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3972 )
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3973 + 1 /* turn floor into ceil */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3974 + 2; /* account for leading 0x */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3975 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3976
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3977 default:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3978 abort ();
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3979 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3980
9834
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3981 if (!pad_ourselves)
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3982 {
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3983 # if ENABLE_UNISTDIO
9834
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3984 /* Padding considers the number of characters, therefore
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3985 the number of elements after padding may be
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3986 > max (tmp_length, width)
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3987 but is certainly
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3988 <= tmp_length + width. */
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3989 tmp_length = xsum (tmp_length, width);
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3990 # else
9834
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3991 /* Padding considers the number of elements,
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3992 says POSIX. */
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3993 if (tmp_length < width)
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3994 tmp_length = width;
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
3995 # endif
9834
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
3996 }
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3997
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
3998 tmp_length = xsum (tmp_length, 1); /* account for trailing NUL */
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
3999 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4000
8962
aea67e2678d9 Tweak last patch.
Bruno Haible <bruno@clisp.org>
parents: 8961
diff changeset
4001 if (tmp_length <= sizeof (tmpbuf) / sizeof (TCHAR_T))
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4002 tmp = tmpbuf;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4003 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4004 {
8962
aea67e2678d9 Tweak last patch.
Bruno Haible <bruno@clisp.org>
parents: 8961
diff changeset
4005 size_t tmp_memsize = xtimes (tmp_length, sizeof (TCHAR_T));
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4006
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4007 if (size_overflow_p (tmp_memsize))
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4008 /* Overflow, would lead to out of memory. */
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4009 goto out_of_memory;
8962
aea67e2678d9 Tweak last patch.
Bruno Haible <bruno@clisp.org>
parents: 8961
diff changeset
4010 tmp = (TCHAR_T *) malloc (tmp_memsize);
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4011 if (tmp == NULL)
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4012 /* Out of memory. */
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4013 goto out_of_memory;
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4014 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4015 #endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4016
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4017 /* Construct the format string for calling snprintf or
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4018 sprintf. */
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4019 fbp = buf;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4020 *fbp++ = '%';
8803
6c1d98929550 Work around lack of support of grouping flag.
Bruno Haible <bruno@clisp.org>
parents: 8664
diff changeset
4021 #if NEED_PRINTF_FLAG_GROUPING
6c1d98929550 Work around lack of support of grouping flag.
Bruno Haible <bruno@clisp.org>
parents: 8664
diff changeset
4022 /* The underlying implementation doesn't support the ' flag.
6c1d98929550 Work around lack of support of grouping flag.
Bruno Haible <bruno@clisp.org>
parents: 8664
diff changeset
4023 Produce no grouping characters in this case; this is
6c1d98929550 Work around lack of support of grouping flag.
Bruno Haible <bruno@clisp.org>
parents: 8664
diff changeset
4024 acceptable because the grouping is locale dependent. */
6c1d98929550 Work around lack of support of grouping flag.
Bruno Haible <bruno@clisp.org>
parents: 8664
diff changeset
4025 #else
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4026 if (flags & FLAG_GROUP)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4027 *fbp++ = '\'';
8803
6c1d98929550 Work around lack of support of grouping flag.
Bruno Haible <bruno@clisp.org>
parents: 8664
diff changeset
4028 #endif
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4029 if (flags & FLAG_LEFT)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4030 *fbp++ = '-';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4031 if (flags & FLAG_SHOWSIGN)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4032 *fbp++ = '+';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4033 if (flags & FLAG_SPACE)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4034 *fbp++ = ' ';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4035 if (flags & FLAG_ALT)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4036 *fbp++ = '#';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4037 if (!pad_ourselves)
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4038 {
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4039 if (flags & FLAG_ZERO)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4040 *fbp++ = '0';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4041 if (dp->width_start != dp->width_end)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4042 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4043 size_t n = dp->width_end - dp->width_start;
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4044 /* The width specification is known to consist only
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4045 of standard ASCII characters. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4046 if (sizeof (FCHAR_T) == sizeof (TCHAR_T))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4047 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4048 memcpy (fbp, dp->width_start, n * sizeof (TCHAR_T));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4049 fbp += n;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4050 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4051 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4052 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4053 const FCHAR_T *mp = dp->width_start;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4054 do
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4055 *fbp++ = (unsigned char) *mp++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4056 while (--n > 0);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4057 }
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4058 }
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4059 }
9446
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4060 if (!prec_ourselves)
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4061 {
9446
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4062 if (dp->precision_start != dp->precision_end)
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4063 {
9446
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4064 size_t n = dp->precision_end - dp->precision_start;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4065 /* The precision specification is known to consist only
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4066 of standard ASCII characters. */
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4067 if (sizeof (FCHAR_T) == sizeof (TCHAR_T))
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4068 {
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4069 memcpy (fbp, dp->precision_start, n * sizeof (TCHAR_T));
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4070 fbp += n;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4071 }
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4072 else
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4073 {
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4074 const FCHAR_T *mp = dp->precision_start;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4075 do
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4076 *fbp++ = (unsigned char) *mp++;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4077 while (--n > 0);
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4078 }
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4079 }
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4080 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4081
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4082 switch (type)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4083 {
8051
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
4084 #if HAVE_LONG_LONG_INT
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4085 case TYPE_LONGLONGINT:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4086 case TYPE_ULONGLONGINT:
8830
abc2bcb16721 Support output of 64-bit numbers on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8804
diff changeset
4087 # if (defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__
abc2bcb16721 Support output of 64-bit numbers on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8804
diff changeset
4088 *fbp++ = 'I';
abc2bcb16721 Support output of 64-bit numbers on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8804
diff changeset
4089 *fbp++ = '6';
abc2bcb16721 Support output of 64-bit numbers on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8804
diff changeset
4090 *fbp++ = '4';
abc2bcb16721 Support output of 64-bit numbers on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8804
diff changeset
4091 break;
abc2bcb16721 Support output of 64-bit numbers on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8804
diff changeset
4092 # else
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4093 *fbp++ = 'l';
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4094 /*FALLTHROUGH*/
8830
abc2bcb16721 Support output of 64-bit numbers on mingw.
Bruno Haible <bruno@clisp.org>
parents: 8804
diff changeset
4095 # endif
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4096 #endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4097 case TYPE_LONGINT:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4098 case TYPE_ULONGINT:
8051
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
4099 #if HAVE_WINT_T
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4100 case TYPE_WIDE_CHAR:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4101 #endif
8051
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
4102 #if HAVE_WCHAR_T
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4103 case TYPE_WIDE_STRING:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4104 #endif
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4105 *fbp++ = 'l';
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4106 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4107 case TYPE_LONGDOUBLE:
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4108 *fbp++ = 'L';
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4109 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4110 default:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4111 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4112 }
8664
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4113 #if NEED_PRINTF_DIRECTIVE_F
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4114 if (dp->conversion == 'F')
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4115 *fbp = 'f';
8664
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4116 else
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4117 #endif
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4118 *fbp = dp->conversion;
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
4119 #if USE_SNPRINTF
9676
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4120 # if !(__GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3) || ((defined _WIN32 || defined __WIN32__) && ! defined __CYGWIN__))
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4121 fbp[1] = '%';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4122 fbp[2] = 'n';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4123 fbp[3] = '\0';
9361
40389da21b02 Don't use %n on glibc >= 2.3 systems.
Bruno Haible <bruno@clisp.org>
parents: 9095
diff changeset
4124 # else
40389da21b02 Don't use %n on glibc >= 2.3 systems.
Bruno Haible <bruno@clisp.org>
parents: 9095
diff changeset
4125 /* On glibc2 systems from glibc >= 2.3 - probably also older
40389da21b02 Don't use %n on glibc >= 2.3 systems.
Bruno Haible <bruno@clisp.org>
parents: 9095
diff changeset
4126 ones - we know that snprintf's returns value conforms to
40389da21b02 Don't use %n on glibc >= 2.3 systems.
Bruno Haible <bruno@clisp.org>
parents: 9095
diff changeset
4127 ISO C 99: the gl_SNPRINTF_DIRECTIVE_N test passes.
40389da21b02 Don't use %n on glibc >= 2.3 systems.
Bruno Haible <bruno@clisp.org>
parents: 9095
diff changeset
4128 Therefore we can avoid using %n in this situation.
40389da21b02 Don't use %n on glibc >= 2.3 systems.
Bruno Haible <bruno@clisp.org>
parents: 9095
diff changeset
4129 On glibc2 systems from 2004-10-18 or newer, the use of %n
40389da21b02 Don't use %n on glibc >= 2.3 systems.
Bruno Haible <bruno@clisp.org>
parents: 9095
diff changeset
4130 in format strings in writable memory may crash the program
40389da21b02 Don't use %n on glibc >= 2.3 systems.
Bruno Haible <bruno@clisp.org>
parents: 9095
diff changeset
4131 (if compiled with _FORTIFY_SOURCE=2), so we should avoid it
40389da21b02 Don't use %n on glibc >= 2.3 systems.
Bruno Haible <bruno@clisp.org>
parents: 9095
diff changeset
4132 in this situation. */
9676
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4133 /* On native Win32 systems (such as mingw), we can avoid using
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4134 %n because:
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4135 - Although the gl_SNPRINTF_TRUNCATION_C99 test fails,
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4136 snprintf does not write more than the specified number
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4137 of bytes. (snprintf (buf, 3, "%d %d", 4567, 89) writes
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4138 '4', '5', '6' into buf, not '4', '5', '\0'.)
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4139 - Although the gl_SNPRINTF_RETVAL_C99 test fails, snprintf
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4140 allows us to recognize the case of an insufficient
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4141 buffer size: it returns -1 in this case.
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4142 On native Win32 systems (such as mingw) where the OS is
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4143 Windows Vista, the use of %n in format strings by default
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4144 crashes the program. See
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4145 <http://gcc.gnu.org/ml/gcc/2007-06/msg00122.html> and
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4146 <http://msdn2.microsoft.com/en-us/library/ms175782(VS.80).aspx>
cbba7bfe013b Don't use %n on native Woe32 systems, to avoid a crash on Windows Vista systems.
Bruno Haible <bruno@clisp.org>
parents: 9674
diff changeset
4147 So we should avoid %n in this situation. */
9361
40389da21b02 Don't use %n on glibc >= 2.3 systems.
Bruno Haible <bruno@clisp.org>
parents: 9095
diff changeset
4148 fbp[1] = '\0';
40389da21b02 Don't use %n on glibc >= 2.3 systems.
Bruno Haible <bruno@clisp.org>
parents: 9095
diff changeset
4149 # endif
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4150 #else
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4151 fbp[1] = '\0';
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4152 #endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4153
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4154 /* Construct the arguments for calling snprintf or sprintf. */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4155 prefix_count = 0;
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4156 if (!pad_ourselves && dp->width_arg_index != ARG_NONE)
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4157 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4158 if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4159 abort ();
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4160 prefixes[prefix_count++] = a.arg[dp->width_arg_index].a.a_int;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4161 }
4886
e4317f1f2e2c Use size_t instead of ssize_t.
Bruno Haible <bruno@clisp.org>
parents: 4879
diff changeset
4162 if (dp->precision_arg_index != ARG_NONE)
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4163 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4164 if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4165 abort ();
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4166 prefixes[prefix_count++] = a.arg[dp->precision_arg_index].a.a_int;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4167 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4168
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
4169 #if USE_SNPRINTF
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4170 /* The SNPRINTF result is appended after result[0..length].
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4171 The latter is an array of DCHAR_T; SNPRINTF appends an
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4172 array of TCHAR_T to it. This is possible because
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4173 sizeof (TCHAR_T) divides sizeof (DCHAR_T) and
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4174 alignof (TCHAR_T) <= alignof (DCHAR_T). */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4175 # define TCHARS_PER_DCHAR (sizeof (DCHAR_T) / sizeof (TCHAR_T))
9462
7bbddc0fae4a Document and work around a BeOS snprintf() bug.
Bruno Haible <bruno@clisp.org>
parents: 9461
diff changeset
4176 /* Ensure that maxlen below will be >= 2. Needed on BeOS,
7bbddc0fae4a Document and work around a BeOS snprintf() bug.
Bruno Haible <bruno@clisp.org>
parents: 9461
diff changeset
4177 where an snprintf() with maxlen==1 acts like sprintf(). */
7bbddc0fae4a Document and work around a BeOS snprintf() bug.
Bruno Haible <bruno@clisp.org>
parents: 9461
diff changeset
4178 ENSURE_ALLOCATION (xsum (length,
7bbddc0fae4a Document and work around a BeOS snprintf() bug.
Bruno Haible <bruno@clisp.org>
parents: 9461
diff changeset
4179 (2 + TCHARS_PER_DCHAR - 1)
7bbddc0fae4a Document and work around a BeOS snprintf() bug.
Bruno Haible <bruno@clisp.org>
parents: 9461
diff changeset
4180 / TCHARS_PER_DCHAR));
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4181 /* Prepare checking whether snprintf returns the count
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4182 via %n. */
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4183 *(TCHAR_T *) (result + length) = '\0';
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4184 #endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4185
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4186 for (;;)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4187 {
8963
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4188 int count = -1;
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4189
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
4190 #if USE_SNPRINTF
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4191 int retcount = 0;
8963
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4192 size_t maxlen = allocated - length;
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4193 /* SNPRINTF can fail if its second argument is
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4194 > INT_MAX. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4195 if (maxlen > INT_MAX / TCHARS_PER_DCHAR)
9371
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4196 maxlen = INT_MAX / TCHARS_PER_DCHAR;
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4197 maxlen = maxlen * TCHARS_PER_DCHAR;
4704
b7a1b14802c8 Correct cpp indentation.
Jim Meyering <jim@meyering.net>
parents: 4589
diff changeset
4198 # define SNPRINTF_BUF(arg) \
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4199 switch (prefix_count) \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4200 { \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4201 case 0: \
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4202 retcount = SNPRINTF ((TCHAR_T *) (result + length), \
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4203 maxlen, buf, \
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4204 arg, &count); \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4205 break; \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4206 case 1: \
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4207 retcount = SNPRINTF ((TCHAR_T *) (result + length), \
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4208 maxlen, buf, \
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4209 prefixes[0], arg, &count); \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4210 break; \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4211 case 2: \
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4212 retcount = SNPRINTF ((TCHAR_T *) (result + length), \
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4213 maxlen, buf, \
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4214 prefixes[0], prefixes[1], arg, \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4215 &count); \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4216 break; \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4217 default: \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4218 abort (); \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4219 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4220 #else
4704
b7a1b14802c8 Correct cpp indentation.
Jim Meyering <jim@meyering.net>
parents: 4589
diff changeset
4221 # define SNPRINTF_BUF(arg) \
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4222 switch (prefix_count) \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4223 { \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4224 case 0: \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4225 count = sprintf (tmp, buf, arg); \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4226 break; \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4227 case 1: \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4228 count = sprintf (tmp, buf, prefixes[0], arg); \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4229 break; \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4230 case 2: \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4231 count = sprintf (tmp, buf, prefixes[0], prefixes[1],\
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4232 arg); \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4233 break; \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4234 default: \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4235 abort (); \
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4236 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4237 #endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4238
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4239 switch (type)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4240 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4241 case TYPE_SCHAR:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4242 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4243 int arg = a.arg[dp->arg_index].a.a_schar;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4244 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4245 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4246 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4247 case TYPE_UCHAR:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4248 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4249 unsigned int arg = a.arg[dp->arg_index].a.a_uchar;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4250 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4251 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4252 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4253 case TYPE_SHORT:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4254 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4255 int arg = a.arg[dp->arg_index].a.a_short;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4256 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4257 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4258 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4259 case TYPE_USHORT:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4260 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4261 unsigned int arg = a.arg[dp->arg_index].a.a_ushort;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4262 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4263 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4264 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4265 case TYPE_INT:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4266 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4267 int arg = a.arg[dp->arg_index].a.a_int;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4268 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4269 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4270 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4271 case TYPE_UINT:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4272 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4273 unsigned int arg = a.arg[dp->arg_index].a.a_uint;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4274 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4275 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4276 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4277 case TYPE_LONGINT:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4278 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4279 long int arg = a.arg[dp->arg_index].a.a_longint;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4280 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4281 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4282 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4283 case TYPE_ULONGINT:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4284 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4285 unsigned long int arg = a.arg[dp->arg_index].a.a_ulongint;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4286 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4287 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4288 break;
8051
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
4289 #if HAVE_LONG_LONG_INT
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4290 case TYPE_LONGLONGINT:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4291 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4292 long long int arg = a.arg[dp->arg_index].a.a_longlongint;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4293 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4294 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4295 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4296 case TYPE_ULONGLONGINT:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4297 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4298 unsigned long long int arg = a.arg[dp->arg_index].a.a_ulonglongint;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4299 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4300 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4301 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4302 #endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4303 case TYPE_DOUBLE:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4304 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4305 double arg = a.arg[dp->arg_index].a.a_double;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4306 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4307 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4308 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4309 case TYPE_LONGDOUBLE:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4310 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4311 long double arg = a.arg[dp->arg_index].a.a_longdouble;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4312 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4313 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4314 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4315 case TYPE_CHAR:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4316 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4317 int arg = a.arg[dp->arg_index].a.a_char;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4318 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4319 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4320 break;
8051
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
4321 #if HAVE_WINT_T
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4322 case TYPE_WIDE_CHAR:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4323 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4324 wint_t arg = a.arg[dp->arg_index].a.a_wide_char;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4325 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4326 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4327 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4328 #endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4329 case TYPE_STRING:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4330 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4331 const char *arg = a.arg[dp->arg_index].a.a_string;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4332 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4333 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4334 break;
8051
9c2b0396b27c Stylistic change: Use '#if HAVE_*' instead of '#ifdef HAVE_*'.
Bruno Haible <bruno@clisp.org>
parents: 7475
diff changeset
4335 #if HAVE_WCHAR_T
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4336 case TYPE_WIDE_STRING:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4337 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4338 const wchar_t *arg = a.arg[dp->arg_index].a.a_wide_string;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4339 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4340 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4341 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4342 #endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4343 case TYPE_POINTER:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4344 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4345 void *arg = a.arg[dp->arg_index].a.a_pointer;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4346 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4347 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4348 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4349 default:
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4350 abort ();
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4351 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4352
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
4353 #if USE_SNPRINTF
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4354 /* Portability: Not all implementations of snprintf()
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4355 are ISO C 99 compliant. Determine the number of
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4356 bytes that snprintf() has produced or would have
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4357 produced. */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4358 if (count >= 0)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4359 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4360 /* Verify that snprintf() has NUL-terminated its
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4361 result. */
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4362 if (count < maxlen
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4363 && ((TCHAR_T *) (result + length)) [count] != '\0')
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4364 abort ();
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4365 /* Portability hack. */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4366 if (retcount > count)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4367 count = retcount;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4368 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4369 else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4370 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4371 /* snprintf() doesn't understand the '%n'
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4372 directive. */
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4373 if (fbp[1] != '\0')
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4374 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4375 /* Don't use the '%n' directive; instead, look
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4376 at the snprintf() return value. */
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4377 fbp[1] = '\0';
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4378 continue;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4379 }
4801
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4380 else
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4381 {
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4382 /* Look at the snprintf() return value. */
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4383 if (retcount < 0)
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4384 {
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4385 /* HP-UX 10.20 snprintf() is doubly deficient:
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4386 It doesn't understand the '%n' directive,
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4387 *and* it returns -1 (rather than the length
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4388 that would have been required) when the
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4389 buffer is too small. */
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4390 size_t bigger_need =
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4391 xsum (xtimes (allocated, 2), 12);
4801
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4392 ENSURE_ALLOCATION (bigger_need);
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4393 continue;
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4394 }
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4395 else
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4396 count = retcount;
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering.
Bruno Haible <bruno@clisp.org>
parents: 4704
diff changeset
4397 }
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4398 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4399 #endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4400
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4401 /* Attempt to handle failure. */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4402 if (count < 0)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4403 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4404 if (!(result == resultbuf || result == NULL))
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4405 free (result);
4879
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
4406 if (buf_malloced != NULL)
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
4407 free (buf_malloced);
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4408 CLEANUP ();
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4409 errno = EINVAL;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4410 return NULL;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4411 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4412
8963
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4413 #if USE_SNPRINTF
9439
9d292d1d891c Fix detection of overflow: don't assume that snprintf is C99 compliant.
Bruno Haible <bruno@clisp.org>
parents: 9438
diff changeset
4414 /* Handle overflow of the allocated buffer.
9d292d1d891c Fix detection of overflow: don't assume that snprintf is C99 compliant.
Bruno Haible <bruno@clisp.org>
parents: 9438
diff changeset
4415 If such an overflow occurs, a C99 compliant snprintf()
9d292d1d891c Fix detection of overflow: don't assume that snprintf is C99 compliant.
Bruno Haible <bruno@clisp.org>
parents: 9438
diff changeset
4416 returns a count >= maxlen. However, a non-compliant
9d292d1d891c Fix detection of overflow: don't assume that snprintf is C99 compliant.
Bruno Haible <bruno@clisp.org>
parents: 9438
diff changeset
4417 snprintf() function returns only count = maxlen - 1. To
9d292d1d891c Fix detection of overflow: don't assume that snprintf is C99 compliant.
Bruno Haible <bruno@clisp.org>
parents: 9438
diff changeset
4418 cover both cases, test whether count >= maxlen - 1. */
9d292d1d891c Fix detection of overflow: don't assume that snprintf is C99 compliant.
Bruno Haible <bruno@clisp.org>
parents: 9438
diff changeset
4419 if ((unsigned int) count + 1 >= maxlen)
8837
6d6277df29a9 Fix logic bug introduced on 2007-05-06.
Bruno Haible <bruno@clisp.org>
parents: 8835
diff changeset
4420 {
9371
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4421 /* If maxlen already has attained its allowed maximum,
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4422 allocating more memory will not increase maxlen.
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4423 Instead of looping, bail out. */
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4424 if (maxlen == INT_MAX / TCHARS_PER_DCHAR)
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4425 goto overflow;
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4426 else
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4427 {
9461
c6d483077434 Fix inefficiency introduced on 2007-11-03.
Bruno Haible <bruno@clisp.org>
parents: 9454
diff changeset
4428 /* Need at least (count + 1) * sizeof (TCHAR_T)
c6d483077434 Fix inefficiency introduced on 2007-11-03.
Bruno Haible <bruno@clisp.org>
parents: 9454
diff changeset
4429 bytes. (The +1 is for the trailing NUL.)
c6d483077434 Fix inefficiency introduced on 2007-11-03.
Bruno Haible <bruno@clisp.org>
parents: 9454
diff changeset
4430 But ask for (count + 2) * sizeof (TCHAR_T)
c6d483077434 Fix inefficiency introduced on 2007-11-03.
Bruno Haible <bruno@clisp.org>
parents: 9454
diff changeset
4431 bytes, so that in the next round, we likely get
c6d483077434 Fix inefficiency introduced on 2007-11-03.
Bruno Haible <bruno@clisp.org>
parents: 9454
diff changeset
4432 maxlen > (unsigned int) count + 1
c6d483077434 Fix inefficiency introduced on 2007-11-03.
Bruno Haible <bruno@clisp.org>
parents: 9454
diff changeset
4433 and so we don't get here again.
c6d483077434 Fix inefficiency introduced on 2007-11-03.
Bruno Haible <bruno@clisp.org>
parents: 9454
diff changeset
4434 And allocate proportionally, to avoid looping
9371
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4435 eternally if snprintf() reports a too small
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4436 count. */
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4437 size_t n =
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4438 xmax (xsum (length,
9461
c6d483077434 Fix inefficiency introduced on 2007-11-03.
Bruno Haible <bruno@clisp.org>
parents: 9454
diff changeset
4439 ((unsigned int) count + 2
c6d483077434 Fix inefficiency introduced on 2007-11-03.
Bruno Haible <bruno@clisp.org>
parents: 9454
diff changeset
4440 + TCHARS_PER_DCHAR - 1)
9371
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4441 / TCHARS_PER_DCHAR),
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4442 xtimes (allocated, 2));
8837
6d6277df29a9 Fix logic bug introduced on 2007-05-06.
Bruno Haible <bruno@clisp.org>
parents: 8835
diff changeset
4443
9371
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4444 ENSURE_ALLOCATION (n);
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4445 continue;
8b3c48038257 Don't report an unjustified overflow error.
Bruno Haible <bruno@clisp.org>
parents: 9361
diff changeset
4446 }
8963
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4447 }
8837
6d6277df29a9 Fix logic bug introduced on 2007-05-06.
Bruno Haible <bruno@clisp.org>
parents: 8835
diff changeset
4448 #endif
8963
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4449
9446
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4450 #if NEED_PRINTF_UNBOUNDED_PRECISION
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4451 if (prec_ourselves)
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4452 {
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4453 /* Handle the precision. */
9651
cee38e50f29c vasnprintf.c: Avoid warning about unused label
Jim Meyering <meyering@redhat.com>
parents: 9646
diff changeset
4454 TCHAR_T *prec_ptr =
9446
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4455 # if USE_SNPRINTF
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4456 (TCHAR_T *) (result + length);
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4457 # else
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4458 tmp;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4459 # endif
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4460 size_t prefix_count;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4461 size_t move;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4462
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4463 prefix_count = 0;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4464 /* Put the additional zeroes after the sign. */
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4465 if (count >= 1
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4466 && (*prec_ptr == '-' || *prec_ptr == '+'
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4467 || *prec_ptr == ' '))
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4468 prefix_count = 1;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4469 /* Put the additional zeroes after the 0x prefix if
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4470 (flags & FLAG_ALT) || (dp->conversion == 'p'). */
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4471 else if (count >= 2
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4472 && prec_ptr[0] == '0'
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4473 && (prec_ptr[1] == 'x' || prec_ptr[1] == 'X'))
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4474 prefix_count = 2;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4475
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4476 move = count - prefix_count;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4477 if (precision > move)
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4478 {
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4479 /* Insert zeroes. */
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4480 size_t insert = precision - move;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4481 TCHAR_T *prec_end;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4482
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4483 # if USE_SNPRINTF
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4484 size_t n =
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4485 xsum (length,
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4486 (count + insert + TCHARS_PER_DCHAR - 1)
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4487 / TCHARS_PER_DCHAR);
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4488 length += (count + TCHARS_PER_DCHAR - 1) / TCHARS_PER_DCHAR;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4489 ENSURE_ALLOCATION (n);
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4490 length -= (count + TCHARS_PER_DCHAR - 1) / TCHARS_PER_DCHAR;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4491 prec_ptr = (TCHAR_T *) (result + length);
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4492 # endif
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4493
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4494 prec_end = prec_ptr + count;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4495 prec_ptr += prefix_count;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4496
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4497 while (prec_end > prec_ptr)
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4498 {
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4499 prec_end--;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4500 prec_end[insert] = prec_end[0];
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4501 }
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4502
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4503 prec_end += insert;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4504 do
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4505 *--prec_end = '0';
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4506 while (prec_end > prec_ptr);
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4507
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4508 count += insert;
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4509 }
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4510 }
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4511 #endif
0519fc8ce06a Fix *printf behaviour for large precisions on mingw and BeOS.
Bruno Haible <bruno@clisp.org>
parents: 9445
diff changeset
4512
9834
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
4513 #if !USE_SNPRINTF
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4514 if (count >= tmp_length)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4515 /* tmp_length was incorrectly calculated - fix the
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4516 code above! */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4517 abort ();
9834
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
4518 #endif
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
4519
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
4520 #if !DCHAR_IS_TCHAR
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4521 /* Convert from TCHAR_T[] to DCHAR_T[]. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4522 if (dp->conversion == 'c' || dp->conversion == 's')
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4523 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4524 /* type = TYPE_CHAR or TYPE_WIDE_CHAR or TYPE_STRING
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4525 TYPE_WIDE_STRING.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4526 The result string is not certainly ASCII. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4527 const TCHAR_T *tmpsrc;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4528 DCHAR_T *tmpdst;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4529 size_t tmpdst_len;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4530 /* This code assumes that TCHAR_T is 'char'. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4531 typedef int TCHAR_T_verify
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4532 [2 * (sizeof (TCHAR_T) == 1) - 1];
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4533 # if USE_SNPRINTF
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4534 tmpsrc = (TCHAR_T *) (result + length);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4535 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4536 tmpsrc = tmp;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4537 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4538 tmpdst = NULL;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4539 tmpdst_len = 0;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4540 if (DCHAR_CONV_FROM_ENCODING (locale_charset (),
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4541 iconveh_question_mark,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4542 tmpsrc, count,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4543 NULL,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4544 &tmpdst, &tmpdst_len)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4545 < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4546 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4547 int saved_errno = errno;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4548 if (!(result == resultbuf || result == NULL))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4549 free (result);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4550 if (buf_malloced != NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4551 free (buf_malloced);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4552 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4553 errno = saved_errno;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4554 return NULL;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4555 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4556 ENSURE_ALLOCATION (xsum (length, tmpdst_len));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4557 DCHAR_CPY (result + length, tmpdst, tmpdst_len);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4558 free (tmpdst);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4559 count = tmpdst_len;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4560 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4561 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4562 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4563 /* The result string is ASCII.
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4564 Simple 1:1 conversion. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4565 # if USE_SNPRINTF
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4566 /* If sizeof (DCHAR_T) == sizeof (TCHAR_T), it's a
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4567 no-op conversion, in-place on the array starting
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4568 at (result + length). */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4569 if (sizeof (DCHAR_T) != sizeof (TCHAR_T))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4570 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4571 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4572 const TCHAR_T *tmpsrc;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4573 DCHAR_T *tmpdst;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4574 size_t n;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4575
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4576 # if USE_SNPRINTF
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4577 if (result == resultbuf)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4578 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4579 tmpsrc = (TCHAR_T *) (result + length);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4580 /* ENSURE_ALLOCATION will not move tmpsrc
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4581 (because it's part of resultbuf). */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4582 ENSURE_ALLOCATION (xsum (length, count));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4583 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4584 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4585 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4586 /* ENSURE_ALLOCATION will move the array
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4587 (because it uses realloc(). */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4588 ENSURE_ALLOCATION (xsum (length, count));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4589 tmpsrc = (TCHAR_T *) (result + length);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4590 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4591 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4592 tmpsrc = tmp;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4593 ENSURE_ALLOCATION (xsum (length, count));
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4594 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4595 tmpdst = result + length;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4596 /* Copy backwards, because of overlapping. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4597 tmpsrc += count;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4598 tmpdst += count;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4599 for (n = count; n > 0; n--)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4600 *--tmpdst = (unsigned char) *--tmpsrc;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4601 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4602 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4603 #endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4604
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4605 #if DCHAR_IS_TCHAR && !USE_SNPRINTF
8963
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4606 /* Make room for the result. */
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4607 if (count > allocated - length)
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4608 {
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4609 /* Need at least count elements. But allocate
8963
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4610 proportionally. */
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4611 size_t n =
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4612 xmax (xsum (length, count), xtimes (allocated, 2));
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4613
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4614 ENSURE_ALLOCATION (n);
8837
6d6277df29a9 Fix logic bug introduced on 2007-05-06.
Bruno Haible <bruno@clisp.org>
parents: 8835
diff changeset
4615 }
8963
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4616 #endif
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4617
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4618 /* Here count <= allocated - length. */
8837
6d6277df29a9 Fix logic bug introduced on 2007-05-06.
Bruno Haible <bruno@clisp.org>
parents: 8835
diff changeset
4619
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4620 /* Perform padding. */
9674
b69f1141e94f Fix *printf behaviour regarding the left-adjust flag on HP-UX 10.20.
Bruno Haible <bruno@clisp.org>
parents: 9672
diff changeset
4621 #if !DCHAR_IS_TCHAR || ENABLE_UNISTDIO || NEED_PRINTF_FLAG_LEFTADJUST || NEED_PRINTF_FLAG_ZERO || NEED_PRINTF_UNBOUNDED_PRECISION
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4622 if (pad_ourselves && has_width)
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4623 {
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4624 size_t w;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4625 # if ENABLE_UNISTDIO
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4626 /* Outside POSIX, it's preferrable to compare the width
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4627 against the number of _characters_ of the converted
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4628 value. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4629 w = DCHAR_MBSNLEN (result + length, count);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4630 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4631 /* The width is compared against the number of _bytes_
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4632 of the converted value, says POSIX. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4633 w = count;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4634 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4635 if (w < width)
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4636 {
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4637 size_t pad = width - w;
9834
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
4638
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4639 /* Make room for the result. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4640 if (xsum (count, pad) > allocated - length)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4641 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4642 /* Need at least count + pad elements. But
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4643 allocate proportionally. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4644 size_t n =
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4645 xmax (xsum3 (length, count, pad),
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4646 xtimes (allocated, 2));
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4647
9834
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
4648 # if USE_SNPRINTF
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4649 length += count;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4650 ENSURE_ALLOCATION (n);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4651 length -= count;
9834
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
4652 # else
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
4653 ENSURE_ALLOCATION (n);
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
4654 # endif
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4655 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4656 /* Here count + pad <= allocated - length. */
9834
b4f1e5627265 Fix buffer overrun.
Bruno Haible <bruno@clisp.org>
parents: 9831
diff changeset
4657
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4658 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4659 # if !DCHAR_IS_TCHAR || USE_SNPRINTF
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4660 DCHAR_T * const rp = result + length;
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4661 # else
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4662 DCHAR_T * const rp = tmp;
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4663 # endif
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4664 DCHAR_T *p = rp + count;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4665 DCHAR_T *end = p + pad;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4666 DCHAR_T *pad_ptr;
9827
32d08ee66484 Fix a bug in unistdio routines, introduced on 2007-06-10.
Bruno Haible <bruno@clisp.org>
parents: 9676
diff changeset
4667 # if !DCHAR_IS_TCHAR || ENABLE_UNISTDIO
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4668 if (dp->conversion == 'c'
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4669 || dp->conversion == 's')
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4670 /* No zero-padding for string directives. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4671 pad_ptr = NULL;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4672 else
9672
c0fb9d4d860d Fix bug introduced on 2007-06-10.
Bruno Haible <bruno@clisp.org>
parents: 9651
diff changeset
4673 # endif
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4674 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4675 pad_ptr = (*rp == '-' ? rp + 1 : rp);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4676 /* No zero-padding of "inf" and "nan". */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4677 if ((*pad_ptr >= 'A' && *pad_ptr <= 'Z')
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4678 || (*pad_ptr >= 'a' && *pad_ptr <= 'z'))
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4679 pad_ptr = NULL;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4680 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4681 /* The generated string now extends from rp to p,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4682 with the zero padding insertion point being at
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4683 pad_ptr. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4684
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4685 count = count + pad; /* = end - rp */
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4686
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4687 if (flags & FLAG_LEFT)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4688 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4689 /* Pad with spaces on the right. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4690 for (; pad > 0; pad--)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4691 *p++ = ' ';
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4692 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4693 else if ((flags & FLAG_ZERO) && pad_ptr != NULL)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4694 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4695 /* Pad with zeroes. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4696 DCHAR_T *q = end;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4697
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4698 while (p > pad_ptr)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4699 *--q = *--p;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4700 for (; pad > 0; pad--)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4701 *p++ = '0';
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4702 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4703 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4704 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4705 /* Pad with spaces on the left. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4706 DCHAR_T *q = end;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4707
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4708 while (p > rp)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4709 *--q = *--p;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4710 for (; pad > 0; pad--)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4711 *p++ = ' ';
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4712 }
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4713 }
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4714 }
8804
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4715 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4716 #endif
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms.
Bruno Haible <bruno@clisp.org>
parents: 8803
diff changeset
4717
8963
f2b97e5b14f5 Tweak the size computations and reallocations.
Bruno Haible <bruno@clisp.org>
parents: 8962
diff changeset
4718 /* Here still count <= allocated - length. */
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4719
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4720 #if !DCHAR_IS_TCHAR || USE_SNPRINTF
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4721 /* The snprintf() result did fit. */
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4722 #else
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4723 /* Append the sprintf() result. */
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
4724 memcpy (result + length, tmp, count * sizeof (DCHAR_T));
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4725 #endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4726 #if !USE_SNPRINTF
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4727 if (tmp != tmpbuf)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4728 free (tmp);
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4729 #endif
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4730
8664
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4731 #if NEED_PRINTF_DIRECTIVE_F
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4732 if (dp->conversion == 'F')
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4733 {
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4734 /* Convert the %f result to upper case for %F. */
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
4735 DCHAR_T *rp = result + length;
8664
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4736 size_t rc;
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4737 for (rc = count; rc > 0; rc--, rp++)
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4738 if (*rp >= 'a' && *rp <= 'z')
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4739 *rp = *rp - 'a' + 'A';
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4740 }
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4741 #endif
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly.
Bruno Haible <bruno@clisp.org>
parents: 8655
diff changeset
4742
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4743 length += count;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4744 break;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4745 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4746 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4747 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4748 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4749
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4750 /* Add the final NUL. */
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4751 ENSURE_ALLOCATION (xsum (length, 1));
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4752 result[length] = '\0';
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4753
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4754 if (result != resultbuf && length + 1 < allocated)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4755 {
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4756 /* Shrink the allocated memory if possible. */
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
4757 DCHAR_T *memory;
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4758
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
4759 memory = (DCHAR_T *) realloc (result, (length + 1) * sizeof (DCHAR_T));
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4760 if (memory != NULL)
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4761 result = memory;
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4762 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4763
4879
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
4764 if (buf_malloced != NULL)
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
4765 free (buf_malloced);
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4766 CLEANUP ();
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4767 *lengthp = length;
7218
0fd12ba5cfc6 Do the INT_MAX check only where size_t is converted to 'int'.
Bruno Haible <bruno@clisp.org>
parents: 6583
diff changeset
4768 /* Note that we can produce a big string of a length > INT_MAX. POSIX
0fd12ba5cfc6 Do the INT_MAX check only where size_t is converted to 'int'.
Bruno Haible <bruno@clisp.org>
parents: 6583
diff changeset
4769 says that snprintf() fails with errno = EOVERFLOW in this case, but
0fd12ba5cfc6 Do the INT_MAX check only where size_t is converted to 'int'.
Bruno Haible <bruno@clisp.org>
parents: 6583
diff changeset
4770 that's only because snprintf() returns an 'int'. This function does
0fd12ba5cfc6 Do the INT_MAX check only where size_t is converted to 'int'.
Bruno Haible <bruno@clisp.org>
parents: 6583
diff changeset
4771 not have this limitation. */
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4772 return result;
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4773
9651
cee38e50f29c vasnprintf.c: Avoid warning about unused label
Jim Meyering <meyering@redhat.com>
parents: 9646
diff changeset
4774 #if USE_SNPRINTF
8468
336e69863755 Fix endless loop when the given allocated size was > INT_MAX.
Bruno Haible <bruno@clisp.org>
parents: 8465
diff changeset
4775 overflow:
336e69863755 Fix endless loop when the given allocated size was > INT_MAX.
Bruno Haible <bruno@clisp.org>
parents: 8465
diff changeset
4776 if (!(result == resultbuf || result == NULL))
336e69863755 Fix endless loop when the given allocated size was > INT_MAX.
Bruno Haible <bruno@clisp.org>
parents: 8465
diff changeset
4777 free (result);
336e69863755 Fix endless loop when the given allocated size was > INT_MAX.
Bruno Haible <bruno@clisp.org>
parents: 8465
diff changeset
4778 if (buf_malloced != NULL)
336e69863755 Fix endless loop when the given allocated size was > INT_MAX.
Bruno Haible <bruno@clisp.org>
parents: 8465
diff changeset
4779 free (buf_malloced);
336e69863755 Fix endless loop when the given allocated size was > INT_MAX.
Bruno Haible <bruno@clisp.org>
parents: 8465
diff changeset
4780 CLEANUP ();
336e69863755 Fix endless loop when the given allocated size was > INT_MAX.
Bruno Haible <bruno@clisp.org>
parents: 8465
diff changeset
4781 errno = EOVERFLOW;
336e69863755 Fix endless loop when the given allocated size was > INT_MAX.
Bruno Haible <bruno@clisp.org>
parents: 8465
diff changeset
4782 return NULL;
9651
cee38e50f29c vasnprintf.c: Avoid warning about unused label
Jim Meyering <meyering@redhat.com>
parents: 9646
diff changeset
4783 #endif
8468
336e69863755 Fix endless loop when the given allocated size was > INT_MAX.
Bruno Haible <bruno@clisp.org>
parents: 8465
diff changeset
4784
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4785 out_of_memory:
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4786 if (!(result == resultbuf || result == NULL))
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4787 free (result);
4879
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
4788 if (buf_malloced != NULL)
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
4789 free (buf_malloced);
9b96adbed643 Avoid alloca with too large size.
Bruno Haible <bruno@clisp.org>
parents: 4872
diff changeset
4790 out_of_memory_1:
4872
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4791 CLEANUP ();
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4792 errno = ENOMEM;
c5afc99b8ce5 Use xsize.h to protect against memory size overflows.
Bruno Haible <bruno@clisp.org>
parents: 4871
diff changeset
4793 return NULL;
4224
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4794 }
83eabea25586 New modules vasnprintf and vasprintf.
Bruno Haible <bruno@clisp.org>
parents:
diff changeset
4795 }
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
4796
8973
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to
Bruno Haible <bruno@clisp.org>
parents: 8963
diff changeset
4797 #undef TCHARS_PER_DCHAR
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
4798 #undef SNPRINTF
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
4799 #undef USE_SNPRINTF
9450
9928de4bfe8a Undefine two macros after they are not needed any more.
Bruno Haible <bruno@clisp.org>
parents: 9446
diff changeset
4800 #undef DCHAR_CPY
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
4801 #undef PRINTF_PARSE
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
4802 #undef DIRECTIVES
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
4803 #undef DIRECTIVE
9450
9928de4bfe8a Undefine two macros after they are not needed any more.
Bruno Haible <bruno@clisp.org>
parents: 9446
diff changeset
4804 #undef DCHAR_IS_TCHAR
8961
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
4805 #undef TCHAR_T
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
4806 #undef DCHAR_T
f1938b0a1252 More type parameters.
Bruno Haible <bruno@clisp.org>
parents: 8916
diff changeset
4807 #undef FCHAR_T
4871
87df35000dab Merge support for wide characters, from GNU gettext.
Bruno Haible <bruno@clisp.org>
parents: 4801
diff changeset
4808 #undef VASNPRINTF