octave-lojdl/gnulib-hg: lib/vasnprintf.c annotate

annotate lib/vasnprintf.c @ 9439:9d292d1d891c

Fix detection of overflow: don't assume that snprintf is C99 compliant.

author	Bruno Haible <bruno@clisp.org>
date	Sat, 03 Nov 2007 15:22:52 +0100
parents	290aa46b4526
children	ad275322f8f1

rev	line source
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1 /* vsprintf with automatic memory allocation.
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	2 Copyright (C) 1999, 2002-2007 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
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	91 #if NEED_PRINTF_LONG_DOUBLE && !defined IN_LIBINTL
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"
8915 f15c03805bd9 Fix possible compilation error. Bruno Haible <bruno@clisp.org> parents: 8865 diff changeset	94 # include "fpucw.h"
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	95 #endif
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	96
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	97 #if 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	98 # include <math.h>
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	99 # include "isnan.h"
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	100 #endif
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	101
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	102 #if 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	103 # 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	104 # include "isnanl-nolibm.h"
8915 f15c03805bd9 Fix possible compilation error. Bruno Haible <bruno@clisp.org> parents: 8865 diff changeset	105 # include "fpucw.h"
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	106 #endif
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	107
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	108 #if NEED_PRINTF_DIRECTIVE_A && !defined IN_LIBINTL
8655 9a272158fe43 Faster determination of the sign of a number. Bruno Haible <bruno@clisp.org> parents: 8648 diff changeset	109 # include <math.h>
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	110 # include "isnan.h"
8526 67e9a647f2fa Fix includes. Bruno Haible <bruno@clisp.org> parents: 8487 diff changeset	111 # include "printf-frexp.h"
8648 359d135f748c Assume 'long double' exists. Bruno Haible <bruno@clisp.org> parents: 8569 diff changeset	112 # include "isnanl-nolibm.h"
359d135f748c Assume 'long double' exists. Bruno Haible <bruno@clisp.org> parents: 8569 diff changeset	113 # include "printf-frexpl.h"
359d135f748c Assume 'long double' exists. Bruno Haible <bruno@clisp.org> parents: 8569 diff changeset	114 # include "fpucw.h"
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	115 #endif
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	116
8468 336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	117 /* Some systems, like OSF/1 4.0 and Woe32, don't have EOVERFLOW. */
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	118 #ifndef EOVERFLOW
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	119 # define EOVERFLOW E2BIG
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	120 #endif
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	121
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	122 #if HAVE_WCHAR_T
9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	123 # 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	124 # 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	125 # else
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	126 /* 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	127 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	128 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	129 twice in the same compilation unit. */
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	130 # ifndef local_wcslen_defined
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	131 # 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	132 static size_t
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	133 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	134 {
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	135 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	136
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	137 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	138 ;
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	139 return ptr - s;
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	140 }
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	141 # endif
4523 6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	142 # endif
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	143 #endif
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	144
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	145 /* 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	146 #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	147 # 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	148 # 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	149 # 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	150 # 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	151 # 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	152 # 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	153 # 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	154 # 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	155 # 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	156 # 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	157 # else
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 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	159 # 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	160 # 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	161 # 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	162 # 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	163 # 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	164 # 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	165 # 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	166 # 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	167 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	168 #endif
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	169 #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	170 /* TCHAR_T is wchar_t. */
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	171 # define USE_SNPRINTF 1
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	172 # if HAVE_DECL__SNWPRINTF
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	173 /* 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	174 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	175 # define SNPRINTF _snwprintf
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	176 # else
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	177 /* Unix. */
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	178 # define SNPRINTF swprintf
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	179 # endif
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	180 #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	181 /* TCHAR_T is char. */
8831 d3f907c33d15 Work around broken snprintf function on BeOS. Bruno Haible <bruno@clisp.org> parents: 8830 diff changeset	182 # /* 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	183 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	184 size argument is >= 0x3000000. */
d3f907c33d15 Work around broken snprintf function on BeOS. Bruno Haible <bruno@clisp.org> parents: 8830 diff changeset	185 # 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	186 # define USE_SNPRINTF 1
d3f907c33d15 Work around broken snprintf function on BeOS. Bruno Haible <bruno@clisp.org> parents: 8830 diff changeset	187 # else
d3f907c33d15 Work around broken snprintf function on BeOS. Bruno Haible <bruno@clisp.org> parents: 8830 diff changeset	188 # define USE_SNPRINTF 0
d3f907c33d15 Work around broken snprintf function on BeOS. Bruno Haible <bruno@clisp.org> parents: 8830 diff changeset	189 # endif
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	190 # if HAVE_DECL__SNPRINTF
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	191 /* Windows. */
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	192 # define SNPRINTF _snprintf
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	193 # else
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	194 /* Unix. */
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	195 # define SNPRINTF snprintf
8417 ee40afd85f2c Avoid an endless recursion. Bruno Haible <bruno@clisp.org> parents: 8400 diff changeset	196 /* 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	197 # undef snprintf
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	198 # endif
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	199 #endif
8424 ec3450ce9889 Use the system's sprintf function. Bruno Haible <bruno@clisp.org> parents: 8417 diff changeset	200 /* 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	201 #undef sprintf
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	202
9095 46dab2096f98 Fix a #if error that causes a build failure on Linux/PowerPC with glibc-2.3.6. Bruno Haible <bruno@clisp.org> parents: 8973 diff changeset	203 #if (NEED_PRINTF_DIRECTIVE_A \|\| NEED_PRINTF_LONG_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	204 /* 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	205 # 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	206 # 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	207 static char
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	208 decimal_point_char ()
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	209 {
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	210 const char *point;
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	211 /* 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	212 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	213 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	214 is rarely multithread-safe. */
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	215 # 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	216 point = nl_langinfo (RADIXCHAR);
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	217 # elif 1
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	218 char pointbuf[5];
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	219 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	220 point = &pointbuf[1];
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	221 # else
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	222 point = localeconv () -> decimal_point;
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	223 # endif
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	224 /* 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	225 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	226 }
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	227 # endif
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	228 #endif
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	229
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	230 #if 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	231
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	232 /* 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	233 static int
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	234 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	235 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	236 return isnan (x) \|\| x + x == x;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	237 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	238
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	239 #endif
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	240
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	241 #if NEED_PRINTF_INFINITE_LONG_DOUBLE && !defined IN_LIBINTL
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	242
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	243 /* 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	244 static int
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	245 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	246 {
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	247 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	248 }
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	249
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	250 #endif
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	251
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	252 #if NEED_PRINTF_LONG_DOUBLE && !defined IN_LIBINTL
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	253
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	254 /* 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	255 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	256 (and slower) algorithms. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	257
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	258 typedef unsigned int mp_limb_t;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	259 # define GMP_LIMB_BITS 32
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	260 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	261
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	262 typedef unsigned long long mp_twolimb_t;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	263 # define GMP_TWOLIMB_BITS 64
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	264 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	265
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	266 /* Representation of a bignum >= 0. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	267 typedef struct
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	268 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	269 size_t nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	270 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	271 } mpn_t;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	272
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	273 /* Compute the product of two bignums >= 0.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	274 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	275 allocation failure. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	276 static void *
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	277 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	278 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	279 const mp_limb_t *p1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	280 const mp_limb_t *p2;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	281 size_t len1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	282 size_t len2;
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 if (src1.nlimbs <= src2.nlimbs)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	285 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	286 len1 = src1.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	287 p1 = src1.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	288 len2 = src2.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	289 p2 = src2.limbs;
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 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	292 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	293 len1 = src2.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	294 p1 = src2.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	295 len2 = src1.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	296 p2 = src1.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	297 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	298 /* Now 0 <= len1 <= len2. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	299 if (len1 == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	300 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	301 /* src1 or src2 is zero. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	302 dest->nlimbs = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	303 dest->limbs = (mp_limb_t *) malloc (1);
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 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	306 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	307 /* Here 1 <= len1 <= len2. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	308 size_t dlen;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	309 mp_limb_t *dp;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	310 size_t k, i, j;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	311
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	312 dlen = len1 + len2;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	313 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	314 if (dp == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	315 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	316 for (k = len2; k > 0; )
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	317 dp[--k] = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	318 for (i = 0; i < len1; i++)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	319 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	320 mp_limb_t digit1 = p1[i];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	321 mp_twolimb_t carry = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	322 for (j = 0; j < len2; j++)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	323 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	324 mp_limb_t digit2 = p2[j];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	325 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	326 carry += dp[i + j];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	327 dp[i + j] = (mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	328 carry = carry >> GMP_LIMB_BITS;
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 dp[i + len2] = (mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	331 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	332 /* Normalise. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	333 while (dlen > 0 && dp[dlen - 1] == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	334 dlen--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	335 dest->nlimbs = dlen;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	336 dest->limbs = dp;
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 return dest->limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	339 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	340
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	341 /* 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	342 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	343 the remainder.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	344 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	345 q is incremented.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	346 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	347 allocation failure. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	348 static void *
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	349 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	350 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	351 /* Algorithm:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	352 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	353 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	354 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	355 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	356 r:=0, j:=m,
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	357 while j>0 do
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	358 {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	359 = 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	360 j:=j-1, r:=rbeta+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	361 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	362 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	363 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	364 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	365 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	366 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	367 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	368 Compute q* :
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	369 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	370 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	371 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	372 and c3 := b[n-2] * q*.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	373 {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	374 occurred. Furthermore 0 <= c3 < beta^2.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	375 If there was overflow and
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	376 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	377 the next test can be skipped.}
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	378 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	379 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	380 If q* > 0:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	381 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	382 [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	383 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	384 u := u + q* * b[i],
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	385 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	386 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	387 r[n+j]:=r[n+j]-u.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	388 {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	389 < q* + 1 <= beta,
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	390 the carry u does not overflow.}
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	391 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	392 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	393 Set q[j] := q*.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	394 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	395 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	396 rest r.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	397 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	398 Finally, round-to-even:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	399 Shift r left by 1 bit.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	400 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	401 */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	402 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	403 size_t a_len = a.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	404 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	405 size_t b_len = b.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	406 mp_limb_t *roomptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	407 mp_limb_t *tmp_roomptr = NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	408 mp_limb_t *q_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	409 size_t q_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	410 mp_limb_t *r_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	411 size_t r_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	412
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	413 /* Allocate room for a_len+2 digits.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	414 (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	415 final rounding of q.) */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	416 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	417 if (roomptr == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	418 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	419
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	420 /* Normalise a. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	421 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	422 a_len--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	423
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	424 /* Normalise b. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	425 for (;;)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	426 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	427 if (b_len == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	428 /* Division by zero. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	429 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	430 if (b_ptr[b_len - 1] == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	431 b_len--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	432 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	433 break;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	434 }
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 /* 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	437
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	438 if (a_len < b_len)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	439 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	440 /* 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	441 r_ptr = roomptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	442 r_len = a_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	443 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	444 q_ptr = roomptr + a_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	445 q_len = 0;
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 else if (b_len == 1)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	448 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	449 /* n=1: single precision division.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	450 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	451 r_ptr = roomptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	452 q_ptr = roomptr + 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	453 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	454 mp_limb_t den = b_ptr[0];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	455 mp_limb_t remainder = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	456 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	457 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	458 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	459 for (count = a_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	460 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	461 mp_twolimb_t num =
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	462 ((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	463 *--destptr = num / den;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	464 remainder = num % den;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	465 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	466 /* Normalise and store r. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	467 if (remainder > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	468 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	469 r_ptr[0] = remainder;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	470 r_len = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	471 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	472 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	473 r_len = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	474 /* Normalise q. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	475 q_len = a_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	476 if (q_ptr[q_len - 1] == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	477 q_len--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	478 }
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 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	481 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	482 /* n>1: multiple precision division.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	483 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	484 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	485 /* Determine s. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	486 size_t s;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	487 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	488 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	489 s = 31;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	490 if (msd >= 0x10000)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	491 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	492 msd = msd >> 16;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	493 s -= 16;
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 if (msd >= 0x100)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	496 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	497 msd = msd >> 8;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	498 s -= 8;
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 if (msd >= 0x10)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	501 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	502 msd = msd >> 4;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	503 s -= 4;
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 if (msd >= 0x4)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	506 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	507 msd = msd >> 2;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	508 s -= 2;
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 if (msd >= 0x2)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	511 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	512 msd = msd >> 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	513 s -= 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	514 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	515 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	516 /* 0 <= s < GMP_LIMB_BITS.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	517 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	518 if (s > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	519 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	520 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	521 if (tmp_roomptr == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	522 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	523 free (roomptr);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	524 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	525 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	526 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	527 const mp_limb_t *sourceptr = b_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	528 mp_limb_t *destptr = tmp_roomptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	529 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	530 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	531 for (count = b_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	532 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	533 accu += (mp_twolimb_t) *sourceptr++ << s;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	534 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	535 accu = accu >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	536 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	537 /* 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	538 if (accu != 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	539 abort ();
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 b_ptr = tmp_roomptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	542 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	543 /* 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	544 Memory layout:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	545 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	546 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	547 r_ptr = roomptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	548 if (s == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	549 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	550 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	551 r_ptr[a_len] = 0;
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 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	554 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	555 const mp_limb_t *sourceptr = a_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	556 mp_limb_t *destptr = r_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	557 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	558 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	559 for (count = a_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	560 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	561 accu += (mp_twolimb_t) *sourceptr++ << s;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	562 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	563 accu = accu >> GMP_LIMB_BITS;
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 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	566 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	567 q_ptr = roomptr + b_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	568 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	569 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	570 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	571 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	572 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	573 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	574 ((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	575 /* Division loop, traversed m-n+1 times.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	576 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	577 for (;;)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	578 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	579 mp_limb_t q_star;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	580 mp_limb_t c1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	581 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	582 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	583 /* 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	584 mp_twolimb_t num =
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	585 ((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	586 \| r_ptr[j + b_len - 1];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	587 q_star = num / b_msd;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	588 c1 = num % b_msd;
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 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	591 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	592 /* Overflow, hence r[j+n]beta+r[j+n-1] >= betab[n-1]. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	593 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	594 /* 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	595 <==> r[j+n]beta+r[j+n-1] + b[n-1] >= betab[n-1]+beta
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	596 <==> 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	597 {<= beta !}.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	598 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	599 (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	600 <==> 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	601 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	602 \|\| (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	603 /* 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	604 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	605 carry. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	606 goto subtract;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	607 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	608 /* q_star = q*,
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	609 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	610 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	611 mp_twolimb_t c2 = /* c1beta+r[j+n-2] /
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	612 ((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	613 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	614 (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	615 /* 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	616 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	617 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	618 this can happen only twice. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	619 if (c3 > c2)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	620 {
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 if (c3 - c2 > b_msdd)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	623 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	624 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	625 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	626 if (q_star > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	627 subtract:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	628 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	629 /* Subtract r := r - b * q* * beta^j. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	630 mp_limb_t cr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	631 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	632 const mp_limb_t *sourceptr = b_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	633 mp_limb_t *destptr = r_ptr + j;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	634 mp_twolimb_t carry = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	635 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	636 for (count = b_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	637 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	638 /* Here 0 <= carry <= q. /
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	639 carry =
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	640 carry
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	641 + (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	642 + (mp_limb_t) ~(*destptr);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	643 /* Here 0 <= carry <= betaq + beta-1. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	644 *destptr++ = ~(mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	645 carry = carry >> GMP_LIMB_BITS; /* <= q* */
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 cr = (mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	648 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	649 /* 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	650 r_ptr[j + b_len]. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	651 if (cr > r_ptr[j + b_len])
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	652 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	653 /* Subtraction gave a carry. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	654 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	655 /* Add b back. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	656 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	657 const mp_limb_t *sourceptr = b_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	658 mp_limb_t *destptr = r_ptr + j;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	659 mp_limb_t carry = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	660 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	661 for (count = b_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	662 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	663 mp_limb_t source1 = *sourceptr++;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	664 mp_limb_t source2 = *destptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	665 *destptr++ = source1 + source2 + carry;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	666 carry =
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	667 (carry
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	668 ? source1 >= (mp_limb_t) ~source2
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	669 : source1 > (mp_limb_t) ~source2);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	670 }
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 /* 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	673 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	674 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	675 /* 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	676 q_ptr[j] = q_star;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	677 if (j == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	678 break;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	679 j--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	680 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	681 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	682 r_len = b_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	683 /* Normalise q. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	684 if (q_ptr[q_len - 1] == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	685 q_len--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	686 # 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	687 b is shifted left by s bits. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	688 /* Shift r right by s bits. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	689 if (s > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	690 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	691 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	692 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	693 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	694 for (count = r_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	695 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	696 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	697 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	698 *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	699 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	700 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	701 # endif
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	702 /* Normalise r. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	703 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	704 r_len--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	705 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	706 /* Compare r << 1 with b. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	707 if (r_len > b_len)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	708 goto increment_q;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	709 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	710 size_t i;
8835 c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	711 for (i = b_len;;)
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	712 {
8835 c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	713 mp_limb_t r_i =
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	714 (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	715 \| (i < r_len ? r_ptr[i] << 1 : 0);
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	716 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	717 if (r_i > b_i)
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	718 goto increment_q;
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	719 if (r_i < b_i)
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	720 goto keep_q;
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	721 if (i == 0)
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	722 break;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	723 i--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	724 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	725 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	726 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	727 /* q is odd. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	728 increment_q:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	729 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	730 size_t i;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	731 for (i = 0; i < q_len; i++)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	732 if (++(q_ptr[i]) != 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	733 goto keep_q;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	734 q_ptr[q_len++] = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	735 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	736 keep_q:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	737 if (tmp_roomptr != NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	738 free (tmp_roomptr);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	739 q->limbs = q_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	740 q->nlimbs = q_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	741 return roomptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	742 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	743
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	744 /* 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	745 representation.
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	746 Destroys the contents of a.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	747 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	748 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	749 of memory allocation failure. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	750 static char *
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	751 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	752 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	753 mp_limb_t *a_ptr = a.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	754 size_t a_len = a.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	755 /* 0.03345 is slightly larger than log(2)/(9log(10)). /
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	756 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	757 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	758 if (c_ptr != NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	759 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	760 char *d_ptr = c_ptr;
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	761 for (; extra_zeroes > 0; extra_zeroes--)
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	762 *d_ptr++ = '0';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	763 while (a_len > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	764 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	765 /* Divide a by 10^9, in-place. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	766 mp_limb_t remainder = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	767 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	768 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	769 for (count = a_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	770 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	771 mp_twolimb_t num =
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	772 ((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	773 *ptr = num / 1000000000;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	774 remainder = num % 1000000000;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	775 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	776 /* Store the remainder as 9 decimal digits. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	777 for (count = 9; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	778 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	779 *d_ptr++ = '0' + (remainder % 10);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	780 remainder = remainder / 10;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	781 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	782 /* Normalize a. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	783 if (a_ptr[a_len - 1] == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	784 a_len--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	785 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	786 /* Remove leading zeroes. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	787 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	788 d_ptr--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	789 /* But keep at least one zero. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	790 if (d_ptr == c_ptr)
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 /* Terminate the string. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	793 *d_ptr = '\0';
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 return c_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	796 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	797
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). */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	826 # if (LDBL_MANT_BIT % GMP_LIMB_BITS) != 0
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	827 # if (LDBL_MANT_BIT % GMP_LIMB_BITS) > GMP_LIMB_BITS / 2
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 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	842 # else
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 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	852 # endif
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 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	869 if (!(y == 0.0L))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	870 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	871 /* Normalise. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	872 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	873 m.nlimbs--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	874 *mp = m;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	875 *ep = exp - LDBL_MANT_BIT;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	876 return m.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	877 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	878
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	879 /* Assuming x 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	880 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	881 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	882 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	883 of memory allocation failure. */
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	884 static char *
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	885 scale10_round_decimal_long_double (long double x, int n)
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	886 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	887 int e;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	888 mpn_t m;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	889 void *memory = decode_long_double (x, &e, &m);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	890 int s;
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	891 size_t extra_zeroes;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	892 unsigned int abs_n;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	893 unsigned int abs_s;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	894 mp_limb_t *pow5_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	895 size_t pow5_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	896 unsigned int s_limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	897 unsigned int s_bits;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	898 mpn_t pow5;
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	899 mpn_t z;
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	900 void *z_memory;
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	901 char *digits;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	902
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	903 if (memory == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	904 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	905 /* x = 2^e * m, hence
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	906 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	907 = round (2^s * 5^n * m). */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	908 s = e + n;
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	909 extra_zeroes = 0;
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	910 /* 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	911 if (s > 0 && n > 0)
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	912 {
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	913 extra_zeroes = (s < n ? s : n);
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	914 s -= extra_zeroes;
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	915 n -= extra_zeroes;
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	916 }
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	917 /* 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	918 Before converting to decimal, we need to compute
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	919 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	920 /* 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	921 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	922 abs_n = (n >= 0 ? n : -n);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	923 abs_s = (s >= 0 ? s : -s);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	924 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	925 + abs_s / GMP_LIMB_BITS + 1)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	926 * sizeof (mp_limb_t));
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	927 if (pow5_ptr == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	928 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	929 free (memory);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	930 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	931 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	932 /* Initialize with 1. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	933 pow5_ptr[0] = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	934 pow5_len = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	935 /* Multiply with 5^\|n\|. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	936 if (abs_n > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	937 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	938 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	939 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	940 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	941 48828125, 244140625, 1220703125
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	942 };
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	943 unsigned int n13;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	944 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	945 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	946 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	947 size_t j;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	948 mp_twolimb_t carry = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	949 for (j = 0; j < pow5_len; j++)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	950 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	951 mp_limb_t digit2 = pow5_ptr[j];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	952 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	953 pow5_ptr[j] = (mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	954 carry = carry >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	955 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	956 if (carry > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	957 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	958 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	959 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	960 s_limbs = abs_s / GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	961 s_bits = abs_s % GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	962 if (n >= 0 ? s >= 0 : s <= 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	963 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	964 /* Multiply with 2^\|s\|. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	965 if (s_bits > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	966 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	967 mp_limb_t *ptr = pow5_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	968 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	969 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	970 for (count = pow5_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	971 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	972 accu += (mp_twolimb_t) *ptr << s_bits;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	973 *ptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	974 accu = accu >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	975 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	976 if (accu > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	977 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	978 *ptr = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	979 pow5_len++;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	980 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	981 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	982 if (s_limbs > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	983 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	984 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	985 for (count = pow5_len; count > 0;)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	986 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	987 count--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	988 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	989 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	990 for (count = s_limbs; count > 0;)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	991 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	992 count--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	993 pow5_ptr[count] = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	994 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	995 pow5_len += s_limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	996 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	997 pow5.limbs = pow5_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	998 pow5.nlimbs = pow5_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	999 if (n >= 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1000 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1001 /* Multiply m with pow5. No division needed. */
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1002 z_memory = multiply (m, pow5, &z);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1003 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1004 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1005 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1006 /* Divide m by pow5 and round. */
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1007 z_memory = divide (m, pow5, &z);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1008 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1009 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1010 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1011 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1012 pow5.limbs = pow5_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1013 pow5.nlimbs = pow5_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1014 if (n >= 0)
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 /* n >= 0, s < 0.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1017 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	1018 mpn_t numerator;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1019 mpn_t denominator;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1020 void *tmp_memory;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1021 tmp_memory = multiply (m, pow5, &numerator);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1022 if (tmp_memory == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1023 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1024 free (pow5_ptr);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1025 free (memory);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1026 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1027 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1028 /* Construct 2^\|s\|. */
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 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	1031 size_t i;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1032 for (i = 0; i < s_limbs; i++)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1033 ptr[i] = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1034 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	1035 denominator.limbs = ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1036 denominator.nlimbs = s_limbs + 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1037 }
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1038 z_memory = divide (numerator, denominator, &z);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1039 free (tmp_memory);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1040 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1041 else
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 /* n < 0, s > 0.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1044 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	1045 mpn_t numerator;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1046 mp_limb_t *num_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1047 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	1048 * sizeof (mp_limb_t));
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1049 if (num_ptr == NULL)
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 free (pow5_ptr);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1052 free (memory);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1053 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1054 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1055 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1056 mp_limb_t *destptr = num_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1057 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1058 size_t i;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1059 for (i = 0; i < s_limbs; i++)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1060 *destptr++ = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1061 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1062 if (s_bits > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1063 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1064 const mp_limb_t *sourceptr = m.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1065 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1066 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1067 for (count = m.nlimbs; count > 0; count--)
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 accu += (mp_twolimb_t) *sourceptr++ << s;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1070 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1071 accu = accu >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1072 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1073 if (accu > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1074 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1075 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1076 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1077 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1078 const mp_limb_t *sourceptr = m.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1079 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1080 for (count = m.nlimbs; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1081 destptr++ = sourceptr++;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1082 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1083 numerator.limbs = num_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1084 numerator.nlimbs = destptr - num_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1085 }
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1086 z_memory = divide (numerator, pow5, &z);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1087 free (num_ptr);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1088 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1089 }
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1090 free (pow5_ptr);
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1091 free (memory);
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1092
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1093 /* 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	1094
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1095 if (z_memory == NULL)
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1096 return NULL;
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1097 digits = convert_to_decimal (z, extra_zeroes);
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1098 free (z_memory);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1099 return digits;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1100 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1101
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1102 /* Assuming x is finite and > 0:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1103 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	1104 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	1105 static int
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1106 floorlog10l (long double x)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1107 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1108 int exp;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1109 long double y;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1110 double z;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1111 double l;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1112
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1113 /* Split into exponential part and mantissa. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1114 y = frexpl (x, &exp);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1115 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1116 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1117 if (y == 0.0L)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1118 return INT_MIN;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1119 if (y < 0.5L)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1120 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1121 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	1122 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1123 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	1124 exp -= GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1125 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1126 if (y < (1.0L / (1 << 16)))
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 y = 1.0L (1 << 16);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1129 exp -= 16;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1130 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1131 if (y < (1.0L / (1 << 8)))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1132 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1133 y = 1.0L (1 << 8);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1134 exp -= 8;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1135 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1136 if (y < (1.0L / (1 << 4)))
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 y = 1.0L (1 << 4);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1139 exp -= 4;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1140 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1141 if (y < (1.0L / (1 << 2)))
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 y = 1.0L (1 << 2);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1144 exp -= 2;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1145 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1146 if (y < (1.0L / (1 << 1)))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1147 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1148 y = 1.0L (1 << 1);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1149 exp -= 1;
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 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1152 if (!(y >= 0.5L && y < 1.0L))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1153 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1154 /* 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	1155 l = exp;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1156 z = y;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1157 if (z < 0.70710678118654752444)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1158 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1159 z *= 1.4142135623730950488;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1160 l -= 0.5;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1161 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1162 if (z < 0.8408964152537145431)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1163 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1164 z *= 1.1892071150027210667;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1165 l -= 0.25;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1166 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1167 if (z < 0.91700404320467123175)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1168 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1169 z *= 1.0905077326652576592;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1170 l -= 0.125;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1171 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1172 if (z < 0.9576032806985736469)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1173 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1174 z *= 1.0442737824274138403;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1175 l -= 0.0625;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1176 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1177 /* Now 0.95 <= z <= 1.01. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1178 z = 1 - z;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1179 /* 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	1180 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	1181 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	1182 /* 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	1183 log10(x). */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1184 l *= 0.30102999566398119523;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1185 /* Round down to the next integer. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1186 return (int) l + (l < 0 ? -1 : 0);
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
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1189 #endif
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1190
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1191 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	1192 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	1193 const FCHAR_T *format, va_list args)
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1194 {
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1195 DIRECTIVES d;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1196 arguments a;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1197
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1198 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	1199 /* errno is already set. */
290aa46b4526 Fix out-of-memory handling of vasnprintf. Bruno Haible <bruno@clisp.org> parents: 9371 diff changeset	1200 return NULL;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1201
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1202 #define CLEANUP() \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1203 free (d.dir); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1204 if (a.arg) \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1205 free (a.arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1206
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1207 if (PRINTF_FETCHARGS (args, &a) < 0)
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1208 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1209 CLEANUP ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1210 errno = EINVAL;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1211 return NULL;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1212 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1213
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1214 {
4879 9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1215 size_t buf_neededlength;
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1216 TCHAR_T *buf;
f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1217 TCHAR_T *buf_malloced;
f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1218 const FCHAR_T *cp;
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1219 size_t i;
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1220 DIRECTIVE *dp;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1221 /* Output string accumulator. */
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1222 DCHAR_T *result;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1223 size_t allocated;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1224 size_t length;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1225
4879 9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1226 /* 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	1227 sprintf or snprintf. */
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1228 buf_neededlength =
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1229 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	1230 #if HAVE_ALLOCA
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1231 if (buf_neededlength < 4000 / sizeof (TCHAR_T))
4879 9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1232 {
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1233 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	1234 buf_malloced = NULL;
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1235 }
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1236 else
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1237 #endif
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1238 {
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1239 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	1240 if (size_overflow_p (buf_memsize))
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1241 goto out_of_memory_1;
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1242 buf = (TCHAR_T *) malloc (buf_memsize);
4879 9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1243 if (buf == NULL)
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1244 goto out_of_memory_1;
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1245 buf_malloced = buf;
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1246 }
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1247
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1248 if (resultbuf != NULL)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1249 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1250 result = resultbuf;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1251 allocated = *lengthp;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1252 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1253 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1254 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1255 result = NULL;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1256 allocated = 0;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1257 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1258 length = 0;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1259 /* Invariants:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1260 result is either == resultbuf or == NULL or malloc-allocated.
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1261 If length > 0, then result != NULL. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1262
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1263 /* 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	1264 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	1265 #define ENSURE_ALLOCATION(needed) \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1266 if ((needed) > allocated) \
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1267 { \
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1268 size_t memory_size; \
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1269 DCHAR_T *memory; \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1270 \
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1271 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	1272 if ((needed) > allocated) \
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1273 allocated = (needed); \
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1274 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	1275 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	1276 goto out_of_memory; \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1277 if (result == resultbuf \|\| result == NULL) \
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1278 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	1279 else \
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1280 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	1281 if (memory == NULL) \
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1282 goto out_of_memory; \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1283 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	1284 DCHAR_CPY (memory, result, length); \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1285 result = memory; \
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1286 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1287
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1288 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	1289 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1290 if (cp != dp->dir_start)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1291 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1292 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	1293 size_t augmented_length = xsum (length, n);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1294
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1295 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	1296 /* 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	1297 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	1298 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	1299 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	1300 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1301 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	1302 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	1303 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1304 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1305 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1306 do
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1307 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	1308 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	1309 }
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1310 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1311 if (i == d.count)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1312 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1313
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1314 /* Execute a single directive. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1315 if (dp->conversion == '%')
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1316 {
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1317 size_t augmented_length;
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1318
4886 e4317f1f2e2c Use size_t instead of ssize_t. Bruno Haible <bruno@clisp.org> parents: 4879 diff changeset	1319 if (!(dp->arg_index == ARG_NONE))
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1320 abort ();
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1321 augmented_length = xsum (length, 1);
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1322 ENSURE_ALLOCATION (augmented_length);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1323 result[length] = '%';
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1324 length = augmented_length;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1325 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1326 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1327 {
4886 e4317f1f2e2c Use size_t instead of ssize_t. Bruno Haible <bruno@clisp.org> parents: 4879 diff changeset	1328 if (!(dp->arg_index != ARG_NONE))
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1329 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1330
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1331 if (dp->conversion == 'n')
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1332 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1333 switch (a.arg[dp->arg_index].type)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1334 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1335 case TYPE_COUNT_SCHAR_POINTER:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1336 *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	1337 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1338 case TYPE_COUNT_SHORT_POINTER:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1339 *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	1340 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1341 case TYPE_COUNT_INT_POINTER:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1342 *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	1343 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1344 case TYPE_COUNT_LONGINT_POINTER:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1345 *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	1346 break;
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	1347 #if HAVE_LONG_LONG_INT
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1348 case TYPE_COUNT_LONGLONGINT_POINTER:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1349 *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	1350 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1351 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1352 default:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1353 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1354 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1355 }
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1356 #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	1357 /* 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	1358 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	1359 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1360 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	1361 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	1362 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	1363 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	1364 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	1365 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	1366
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1367 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	1368 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	1369 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	1370 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1371 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	1372 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1373 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	1374
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1375 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	1376 abort ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1377 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	1378 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	1379 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1380 /* "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	1381 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	1382 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	1383 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	1384 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1385 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1386 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	1387 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1388 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1389 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1390 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	1391
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1392 do
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1393 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	1394 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	1395 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1396 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	1397 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1398
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1399 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	1400 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	1401 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	1402 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1403 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	1404 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1405 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	1406
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1407 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	1408 abort ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1409 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	1410 /* "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	1411 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	1412 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	1413 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1414 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	1415 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	1416 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1417 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1418 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1419 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1420 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	1421
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1422 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	1423 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	1424 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	1425 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	1426 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1427 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1428
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1429 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	1430 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1431 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	1432 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1433 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	1434 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	1435 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	1436
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1437 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	1438 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1439 /* 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	1440 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	1441 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	1442 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	1443 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1444 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	1445 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	1446 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1447 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	1448 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1449 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	1450 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	1451 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	1452 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	1453 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1454 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	1455 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	1456 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1457 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	1458 characters++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1459 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1460 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1461 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	1462 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1463 /* 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	1464 characters. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1465 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	1466 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	1467 for (;;)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1468 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1469 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	1470 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	1471 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1472 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	1473 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1474 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	1475 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	1476 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	1477 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	1478 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1479 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	1480 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	1481 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1482 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	1483 characters++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1484 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1485 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1486 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1487 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1488 /* 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	1489 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	1490 /* 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	1491 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	1492 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1493
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1494 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	1495 && !(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	1496 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1497 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	1498 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	1499 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	1500 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	1501 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1502
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1503 # 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	1504 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1505 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	1506 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	1507 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	1508 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	1509 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1510 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1511 { /* Convert. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1512 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	1513 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	1514 # 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	1515 /* 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	1516 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	1517 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	1518 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	1519 &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	1520 < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1521 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1522 /* 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	1523 converted =
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1524 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	1525 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	1526 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	1527 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1528 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1529 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	1530 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	1531 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	1532 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	1533 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	1534 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1535 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	1536 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	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 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	1539 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1540 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	1541 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	1542 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	1543 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1544 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	1545 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1546 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1547
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1548 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	1549 && (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	1550 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1551 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	1552 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	1553 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	1554 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	1555 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1556 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1557 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1558
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1559 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	1560 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1561 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	1562 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	1563 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	1564
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1565 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	1566 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1567 /* 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	1568 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	1569 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	1570 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	1571 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1572 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	1573 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	1574 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1575 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	1576 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1577 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	1578 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	1579 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	1580 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	1581 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1582 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	1583 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	1584 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1585 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	1586 characters++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1587 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1588 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1589 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	1590 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1591 /* 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	1592 characters. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1593 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	1594 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	1595 for (;;)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1596 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1597 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	1598 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	1599 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1600 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	1601 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1602 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	1603 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	1604 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	1605 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	1606 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1607 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	1608 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	1609 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1610 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	1611 characters++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1612 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1613 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1614 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1615 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1616 /* 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	1617 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	1618 /* 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	1619 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	1620 }
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 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	1623 && !(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	1624 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1625 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	1626 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	1627 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	1628 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	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 # 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	1632 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1633 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	1634 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	1635 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	1636 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	1637 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1638 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1639 { /* Convert. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1640 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	1641 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	1642 # 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	1643 /* 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	1644 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	1645 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	1646 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	1647 &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	1648 < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1649 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1650 /* 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	1651 converted =
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1652 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	1653 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	1654 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	1655 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1656 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1657 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	1658 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	1659 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	1660 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	1661 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	1662 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1663 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	1664 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	1665 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1666 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	1667 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1668 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	1669 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	1670 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	1671 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1672 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	1673 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1674 # endif
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 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	1677 && (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	1678 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1679 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	1680 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	1681 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	1682 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	1683 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1684 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1685 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1686
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1687 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	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 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	1690 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	1691 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	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 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	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 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	1696 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	1697 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	1698 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	1699 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1700 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	1701 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	1702 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1703 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	1704 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1705 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	1706 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	1707 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	1708 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	1709 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1710 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	1711 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	1712 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1713 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	1714 characters++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1715 }
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 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	1718 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1719 /* 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	1720 characters. */
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;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1722 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	1723 for (;;)
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 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	1726 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	1727 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1728 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	1729 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1730 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	1731 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	1732 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	1733 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	1734 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1735 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	1736 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	1737 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1738 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	1739 characters++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1740 }
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 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1744 /* 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	1745 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	1746 /* 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	1747 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	1748 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1749
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1750 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	1751 && !(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	1752 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1753 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	1754 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	1755 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	1756 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	1757 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1758
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1759 # 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	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 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	1762 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	1763 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	1764 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	1765 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1766 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1767 { /* Convert. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1768 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	1769 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	1770 # 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	1771 /* 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	1772 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	1773 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	1774 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	1775 &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	1776 < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1777 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1778 /* 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	1779 converted =
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1780 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	1781 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	1782 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	1783 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1784 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1785 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	1786 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	1787 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	1788 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	1789 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	1790 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1791 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	1792 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	1793 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1794 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	1795 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1796 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	1797 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	1798 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	1799 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1800 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	1801 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1802 # endif
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 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	1805 && (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	1806 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1807 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	1808 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	1809 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	1810 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	1811 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1812 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1813 break;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1814
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1815 default:
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1816 abort ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1817 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1818 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	1819 #endif
8916 353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1820 #if NEED_PRINTF_DIRECTIVE_A && !defined IN_LIBINTL
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1821 else if (dp->conversion == 'a' \|\| 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	1822 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1823 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	1824 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	1825 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	1826 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	1827 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	1828 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	1829 size_t tmp_length;
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1830 DCHAR_T tmpbuf[700];
f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1831 DCHAR_T *tmp;
f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1832 DCHAR_T *pad_ptr;
f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1833 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	1834
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1835 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	1836 width = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1837 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	1838 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1839 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	1840 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1841 int arg;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1842
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1843 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	1844 abort ();
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1845 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	1846 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	1847 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1848 /* "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	1849 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	1850 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	1851 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	1852 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1853 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1854 width = arg;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1855 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1856 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1857 {
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1858 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	1859
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1860 do
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1861 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	1862 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	1863 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1864 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	1865 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1866
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1867 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	1868 precision = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1869 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	1870 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1871 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	1872 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1873 int arg;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1874
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1875 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	1876 abort ();
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1877 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	1878 /* "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	1879 were omitted." */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1880 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	1881 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1882 precision = arg;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1883 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	1884 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1885 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1886 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1887 {
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1888 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	1889
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1890 precision = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1891 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	1892 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	1893 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	1894 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1895 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1896
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1897 /* 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	1898 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	1899 tmp_length =
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1900 (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	1901 * 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	1902 )
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1903 + 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	1904 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1905 tmp_length =
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1906 (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	1907 * 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	1908 )
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1909 + 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	1910 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	1911 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	1912 /* 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	1913 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	1914
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1915 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	1916 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	1917
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1918 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	1919
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1920 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	1921 tmp = tmpbuf;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1922 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1923 {
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1924 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	1925
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1926 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	1927 /* 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	1928 goto out_of_memory;
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	1929 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	1930 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	1931 /* 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	1932 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	1933 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1934
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1935 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	1936 p = tmp;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1937 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	1938 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1939 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	1940
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1941 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	1942 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1943 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	1944 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1945 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	1946 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1947 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1948 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1949 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	1950 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1951 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1952 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1953 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1954 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	1955 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	1956
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1957 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	1958
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1959 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	1960 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1961 sign = -1;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1962 arg = -arg;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1963 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1964
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1965 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	1966 *p++ = '-';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1967 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	1968 *p++ = '+';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1969 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	1970 *p++ = ' ';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1971
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1972 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	1973 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1974 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	1975 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1976 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	1977 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1978 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1979 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1980 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	1981 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1982 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1983 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1984 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1985 int exponent;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1986 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	1987
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1988 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	1989 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	1990 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1991 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1992 exponent = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1993 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	1994 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1995
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1996 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	1997 && 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	1998 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	1999 /* 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	2000 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	2001 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	2002
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2003 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	2004 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2005 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	2006 tail -= digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2007 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	2008 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2009 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	2010 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	2011 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2012 tail = - tail;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2013 break;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2014 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2015 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	2016 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2017 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	2018 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	2019 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	2020 mantissa += tail;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2021 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2022
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2023 *p++ = '0';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2024 *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	2025 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	2026 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2027 int digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2028
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2029 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	2030 mantissa -= digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2031 *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	2032 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	2033 \|\| 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	2034 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2035 *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	2036 /* 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	2037 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	2038 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	2039 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2040 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	2041 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	2042 mantissa -= digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2043 *p++ = digit
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2044 + (digit < 10
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2045 ? '0'
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2046 : 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	2047 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	2048 precision--;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2049 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2050 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	2051 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2052 *p++ = '0';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2053 precision--;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2054 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2055 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2056 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2057 *p++ = dp->conversion - 'A' + 'P';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2058 # if WIDE_CHAR_VERSION
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2059 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2060 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	2061 { '%', '+', 'd', '\0' };
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2062 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	2063 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2064 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	2065 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	2066 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2067 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	2068 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2069 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	2070 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	2071 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2072 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2073 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2074 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2075 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	2076 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	2077 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	2078 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	2079 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2080 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2081 # endif
8916 353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2082 }
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 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	2085 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2086 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2087 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2088 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2089 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	2090
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2091 if (isnan (arg))
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2092 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2093 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	2094 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2095 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	2096 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2097 else
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 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	2100 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2101 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2102 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2103 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2104 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	2105
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2106 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	2107 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2108 sign = -1;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2109 arg = -arg;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2110 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2111
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2112 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	2113 *p++ = '-';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2114 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	2115 *p++ = '+';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2116 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	2117 *p++ = ' ';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2118
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2119 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	2120 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2121 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	2122 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2123 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	2124 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2125 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2126 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2127 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	2128 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2129 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2130 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2131 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2132 int exponent;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2133 double mantissa;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2134
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2135 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	2136 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	2137 else
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 exponent = 0;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2140 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	2141 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2142
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2143 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	2144 && 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	2145 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2146 /* 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	2147 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	2148 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	2149
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2150 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	2151 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2152 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	2153 tail -= digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2154 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	2155 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2156 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	2157 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	2158 else
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2159 tail = - tail;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2160 break;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2161 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2162 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	2163 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2164 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	2165 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	2166 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	2167 mantissa += tail;
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
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2170 *p++ = '0';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2171 *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	2172 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	2173 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2174 int digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2175
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2176 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	2177 mantissa -= digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2178 *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	2179 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	2180 \|\| 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	2181 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2182 *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	2183 /* 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	2184 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	2185 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	2186 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2187 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	2188 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	2189 mantissa -= digit;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2190 *p++ = digit
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2191 + (digit < 10
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2192 ? '0'
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2193 : 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	2194 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	2195 precision--;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2196 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2197 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	2198 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2199 *p++ = '0';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2200 precision--;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2201 }
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 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2204 *p++ = dp->conversion - 'A' + 'P';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2205 # if WIDE_CHAR_VERSION
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2206 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2207 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	2208 { '%', '+', 'd', '\0' };
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2209 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	2210 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2211 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	2212 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	2213 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2214 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	2215 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2216 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	2217 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	2218 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2219 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2220 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2221 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2222 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	2223 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	2224 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	2225 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	2226 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2227 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2228 # endif
8916 353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2229 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2230 }
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 /* 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	2233 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	2234 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	2235 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2236 size_t pad = width - (p - tmp);
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2237 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	2238
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2239 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	2240 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2241 /* 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	2242 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	2243 *p++ = ' ';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2244 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2245 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	2246 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2247 /* Pad with zeroes. */
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2248 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	2249
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2250 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	2251 --q = --p;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2252 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	2253 *p++ = '0';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2254 }
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 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2257 /* Pad with spaces on the left. */
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2258 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	2259
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2260 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	2261 --q = --p;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2262 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	2263 *p++ = ' ';
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2264 }
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 p = end;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2267 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2268
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2269 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2270 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	2271
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2272 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	2273 /* 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	2274 code above! */
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2275 abort ();
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2276
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2277 /* 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	2278 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	2279 {
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2280 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	2281
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2282 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	2283 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2284
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2285 /* Append the result. */
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2286 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	2287 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	2288 free (tmp);
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2289 length += count;
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2290 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2291 }
353e81af4858 Do the extra handling of NaN and Inf also the %a / %A. Bruno Haible <bruno@clisp.org> parents: 8915 diff changeset	2292 #endif
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2293 #if (NEED_PRINTF_INFINITE_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	2294 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	2295 \|\| 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	2296 \|\| 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	2297 \|\| 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	2298 && (0
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2299 # if 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	2300 \|\| (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	2301 /* 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	2302 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	2303 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	2304 && 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	2305 # endif
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2306 # 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	2307 \|\| 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	2308 # 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	2309 \|\| (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	2310 /* 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	2311 -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	2312 && 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	2313 # endif
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2314 ))
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2315 {
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2316 # if 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	2317 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	2318 # endif
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2319 int flags = dp->flags;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2320 int has_width;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2321 size_t width;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2322 int has_precision;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2323 size_t precision;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2324 size_t tmp_length;
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2325 DCHAR_T tmpbuf[700];
f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2326 DCHAR_T *tmp;
f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2327 DCHAR_T *pad_ptr;
f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2328 DCHAR_T *p;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2329
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2330 has_width = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2331 width = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2332 if (dp->width_start != dp->width_end)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2333 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2334 if (dp->width_arg_index != ARG_NONE)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2335 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2336 int arg;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2337
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2338 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	2339 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2340 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	2341 if (arg < 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2342 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2343 /* "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	2344 followed by a positive field width." */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2345 flags \|= FLAG_LEFT;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2346 width = (unsigned int) (-arg);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2347 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2348 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2349 width = arg;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2350 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2351 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2352 {
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2353 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	2354
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2355 do
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2356 width = xsum (xtimes (width, 10), *digitp++ - '0');
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2357 while (digitp != dp->width_end);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2358 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2359 has_width = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2360 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2361
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2362 has_precision = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2363 precision = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2364 if (dp->precision_start != dp->precision_end)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2365 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2366 if (dp->precision_arg_index != ARG_NONE)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2367 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2368 int arg;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2369
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2370 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	2371 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2372 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	2373 /* "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	2374 were omitted." */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2375 if (arg >= 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2376 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2377 precision = arg;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2378 has_precision = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2379 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2380 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2381 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2382 {
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2383 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	2384
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2385 precision = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2386 while (digitp != dp->precision_end)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2387 precision = xsum (xtimes (precision, 10), *digitp++ - '0');
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2388 has_precision = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2389 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2390 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2391
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2392 /* 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	2393 %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	2394 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	2395 if (!has_precision)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2396 precision = 6;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2397
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2398 /* Allocate a temporary buffer of sufficient size. */
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2399 # if 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	2400 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	2401 # elif NEED_PRINTF_LONG_DOUBLE
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2402 tmp_length = LDBL_DIG + 1;
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2403 # else
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2404 tmp_length = 0;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2405 # endif
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2406 if (tmp_length < precision)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2407 tmp_length = precision;
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2408 # if NEED_PRINTF_LONG_DOUBLE
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2409 # if 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	2410 if (type == TYPE_LONGDOUBLE)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2411 # endif
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2412 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	2413 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2414 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	2415 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	2416 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2417 /* 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	2418 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	2419 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	2420 tmp_length = exponent + precision;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2421 }
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2422 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2423 # endif
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2424 /* Account for sign, decimal point etc. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2425 tmp_length = xsum (tmp_length, 12);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2426
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2427 if (tmp_length < width)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2428 tmp_length = width;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2429
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2430 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	2431
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2432 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	2433 tmp = tmpbuf;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2434 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2435 {
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2436 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	2437
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2438 if (size_overflow_p (tmp_memsize))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2439 /* Overflow, would lead to out of memory. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2440 goto out_of_memory;
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2441 tmp = (DCHAR_T *) malloc (tmp_memsize);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2442 if (tmp == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2443 /* Out of memory. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2444 goto out_of_memory;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2445 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2446
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2447 pad_ptr = NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2448 p = tmp;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2449
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2450 # if NEED_PRINTF_LONG_DOUBLE \|\| 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	2451 # if 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	2452 if (type == TYPE_LONGDOUBLE)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2453 # endif
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2454 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2455 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	2456
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2457 if (isnanl (arg))
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2458 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2459 if (dp->conversion >= 'A' && dp->conversion <= 'Z')
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2460 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2461 p++ = 'N'; p++ = 'A'; *p++ = 'N';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2462 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2463 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2464 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2465 p++ = 'n'; p++ = 'a'; *p++ = 'n';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2466 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2467 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2468 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2469 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2470 int sign = 0;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2471 DECL_LONG_DOUBLE_ROUNDING
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2472
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2473 BEGIN_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2474
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2475 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	2476 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2477 sign = -1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2478 arg = -arg;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2479 }
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2480
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2481 if (sign < 0)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2482 *p++ = '-';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2483 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	2484 *p++ = '+';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2485 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	2486 *p++ = ' ';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2487
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2488 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	2489 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2490 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	2491 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2492 p++ = 'I'; p++ = 'N'; *p++ = 'F';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2493 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2494 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2495 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2496 p++ = 'i'; p++ = 'n'; *p++ = 'f';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2497 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2498 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2499 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2500 {
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2501 # 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	2502 pad_ptr = p;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2503
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2504 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	2505 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2506 char *digits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2507 size_t ndigits;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2508
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2509 digits =
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2510 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	2511 if (digits == NULL)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2512 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2513 END_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2514 goto out_of_memory;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2515 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2516 ndigits = strlen (digits);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2517
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2518 if (ndigits > precision)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2519 do
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2520 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2521 --ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2522 *p++ = digits[ndigits];
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2523 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2524 while (ndigits > precision);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2525 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2526 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2527 /* Here ndigits <= precision. */
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2528 if ((flags & FLAG_ALT) \|\| precision > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2529 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2530 *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	2531 for (; precision > ndigits; precision--)
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2532 *p++ = '0';
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2533 while (ndigits > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2534 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2535 --ndigits;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2536 *p++ = digits[ndigits];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2537 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2538 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2539
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2540 free (digits);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2541 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2542 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	2543 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2544 int exponent;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2545
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2546 if (arg == 0.0L)
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2547 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2548 exponent = 0;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2549 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2550 if ((flags & FLAG_ALT) \|\| precision > 0)
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2551 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2552 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2553 for (; precision > 0; precision--)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2554 *p++ = '0';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2555 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2556 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2557 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2558 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2559 /* arg > 0.0L. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2560 int adjusted;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2561 char *digits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2562 size_t ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2563
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2564 exponent = floorlog10l (arg);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2565 adjusted = 0;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2566 for (;;)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2567 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2568 digits =
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2569 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	2570 (int)precision - exponent);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2571 if (digits == NULL)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2572 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2573 END_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2574 goto out_of_memory;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2575 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2576 ndigits = strlen (digits);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2577
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2578 if (ndigits == precision + 1)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2579 break;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2580 if (ndigits < precision
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2581 \|\| ndigits > precision + 2)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2582 /* 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	2583 precisely enough. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2584 abort ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2585 if (adjusted)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2586 /* 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	2587 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	2588 loop. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2589 abort ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2590 free (digits);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2591 if (ndigits == precision)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2592 exponent -= 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2593 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2594 exponent += 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2595 adjusted = 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2596 }
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2597
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2598 /* Here ndigits = precision+1. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2599 *p++ = digits[--ndigits];
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2600 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	2601 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2602 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2603 while (ndigits > 0)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2604 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2605 --ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2606 *p++ = digits[ndigits];
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2607 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2608 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2609
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2610 free (digits);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2611 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2612
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2613 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	2614 # 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	2615 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2616 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	2617 { '%', '+', '.', '2', 'd', '\0' };
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2618 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	2619 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2620 while (*p != '\0')
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2621 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	2622 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2623 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	2624 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2625 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	2626 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	2627 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2628 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2629 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2630 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2631 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	2632 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	2633 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	2634 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	2635 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2636 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2637 # endif
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2638 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2639 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	2640 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2641 if (precision == 0)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2642 precision = 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2643 /* precision >= 1. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2644
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2645 if (arg == 0.0L)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2646 /* 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	2647 Use fixed-point notation. */
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2648 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2649 size_t ndigits = precision;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2650 /* 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	2651 dropped. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2652 size_t nzeroes =
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2653 (flags & FLAG_ALT ? 0 : precision - 1);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2654
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2655 --ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2656 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2657 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	2658 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2659 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2660 while (ndigits > nzeroes)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2661 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2662 --ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2663 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2664 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2665 }
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2666 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2667 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2668 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2669 /* arg > 0.0L. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2670 int exponent;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2671 int adjusted;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2672 char *digits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2673 size_t ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2674 size_t nzeroes;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2675
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2676 exponent = floorlog10l (arg);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2677 adjusted = 0;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2678 for (;;)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2679 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2680 digits =
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2681 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	2682 (int)(precision - 1) - exponent);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2683 if (digits == NULL)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2684 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2685 END_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2686 goto out_of_memory;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2687 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2688 ndigits = strlen (digits);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2689
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2690 if (ndigits == precision)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2691 break;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2692 if (ndigits < precision - 1
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2693 \|\| ndigits > precision + 1)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2694 /* 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	2695 precisely enough. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2696 abort ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2697 if (adjusted)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2698 /* 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	2699 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	2700 loop. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2701 abort ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2702 free (digits);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2703 if (ndigits < precision)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2704 exponent -= 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2705 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2706 exponent += 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2707 adjusted = 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2708 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2709 /* Here ndigits = precision. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2710
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2711 /* 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	2712 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	2713 nzeroes = 0;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2714 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	2715 while (nzeroes < ndigits
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2716 && digits[nzeroes] == '0')
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2717 nzeroes++;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2718
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2719 /* 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	2720 if (exponent >= -4
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2721 && exponent < (long)precision)
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2722 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2723 /* Fixed-point notation:
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2724 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	2725 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	2726 digits without trailing zeroes. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2727 if (exponent >= 0)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2728 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2729 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	2730 /* Note: count <= precision = ndigits. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2731 for (; count > 0; count--)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2732 *p++ = digits[--ndigits];
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2733 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	2734 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2735 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2736 while (ndigits > nzeroes)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2737 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2738 --ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2739 *p++ = digits[ndigits];
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2740 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2741 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2742 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2743 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2744 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2745 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	2746 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2747 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2748 for (; count > 0; count--)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2749 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2750 while (ndigits > nzeroes)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2751 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2752 --ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2753 *p++ = digits[ndigits];
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2754 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2755 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2756 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2757 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2758 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2759 /* Exponential notation. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2760 *p++ = digits[--ndigits];
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2761 if ((flags & FLAG_ALT) \|\| ndigits > nzeroes)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2762 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2763 *p++ = decimal_point_char ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2764 while (ndigits > nzeroes)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2765 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2766 --ndigits;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2767 *p++ = digits[ndigits];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2768 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2769 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2770 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	2771 # 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	2772 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2773 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	2774 { '%', '+', '.', '2', 'd', '\0' };
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2775 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	2776 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2777 while (*p != '\0')
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2778 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	2779 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2780 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	2781 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2782 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	2783 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	2784 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2785 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2786 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2787 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2788 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	2789 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	2790 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	2791 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	2792 p++;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2793 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2794 # endif
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2795 }
8840 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 free (digits);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2798 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2799 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2800 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2801 abort ();
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2802 # else
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2803 /* arg is finite. */
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2804 abort ();
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2805 # endif
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2806 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2807
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2808 END_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2809 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2810 }
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2811 # if 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	2812 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2813 # endif
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2814 # endif
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2815 # if 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	2816 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2817 /* Simpler than above: handle only NaN, Infinity, zero. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2818 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	2819
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2820 if (isnan (arg))
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2821 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2822 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	2823 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2824 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	2825 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2826 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2827 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2828 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	2829 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2830 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2831 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2832 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2833 int sign = 0;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2834
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2835 if (signbit (arg)) /* arg < 0.0L or negative zero */
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 sign = -1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2838 arg = -arg;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2839 }
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 if (sign < 0)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2842 *p++ = '-';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2843 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	2844 *p++ = '+';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2845 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	2846 *p++ = ' ';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2847
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2848 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	2849 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2850 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	2851 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2852 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	2853 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2854 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2855 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2856 p++ = 'i'; p++ = 'n'; *p++ = 'f';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2857 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2858 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2859 else
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2860 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2861 if (!(arg == 0.0))
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
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2864 pad_ptr = p;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2865
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2866 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	2867 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2868 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2869 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	2870 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2871 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2872 for (; precision > 0; precision--)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2873 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2874 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2875 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2876 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	2877 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2878 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2879 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	2880 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2881 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2882 for (; precision > 0; precision--)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2883 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2884 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2885 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	2886 *p++ = '+';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2887 /* 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	2888 the native printf implementation. */
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2889 # 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	2890 *p++ = '0';
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	2891 # endif
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2892 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2893 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2894 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2895 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	2896 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2897 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2898 if (flags & FLAG_ALT)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2899 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2900 size_t ndigits =
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2901 (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	2902 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2903 for (; ndigits > 0; --ndigits)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2904 *p++ = '0';
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 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2908 abort ();
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 }
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2911 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	2912 # endif
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2913
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2914 /* 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	2915 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	2916 if (has_width && p - tmp < width)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2917 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2918 size_t pad = width - (p - tmp);
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2919 DCHAR_T *end = p + pad;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2920
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2921 if (flags & FLAG_LEFT)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2922 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2923 /* Pad with spaces on the right. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2924 for (; pad > 0; pad--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2925 *p++ = ' ';
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2926 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2927 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	2928 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2929 /* Pad with zeroes. */
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2930 DCHAR_T *q = end;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2931
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2932 while (p > pad_ptr)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2933 --q = --p;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2934 for (; pad > 0; pad--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2935 *p++ = '0';
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2936 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2937 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2938 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2939 /* Pad with spaces on the left. */
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2940 DCHAR_T *q = end;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2941
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2942 while (p > tmp)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2943 --q = --p;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2944 for (; pad > 0; pad--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2945 *p++ = ' ';
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2946 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2947
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2948 p = end;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2949 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2950
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2951 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2952 size_t count = p - tmp;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2953
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2954 if (count >= tmp_length)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2955 /* tmp_length was incorrectly calculated - fix the
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2956 code above! */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2957 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2958
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2959 /* Make room for the result. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2960 if (count >= allocated - length)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2961 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2962 size_t n = xsum (length, count);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2963
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2964 ENSURE_ALLOCATION (n);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2965 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2966
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2967 /* Append the result. */
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2968 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	2969 if (tmp != tmpbuf)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2970 free (tmp);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2971 length += count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2972 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2973 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	2974 #endif
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2975 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2976 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2977 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	2978 int flags = dp->flags;
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2979 #if !USE_SNPRINTF \|\| !DCHAR_IS_TCHAR \|\| ENABLE_UNISTDIO \|\| NEED_PRINTF_FLAG_ZERO
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2980 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	2981 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	2982 #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	2983 #if !DCHAR_IS_TCHAR \|\| ENABLE_UNISTDIO \|\| NEED_PRINTF_FLAG_ZERO
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2984 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	2985 #else
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2986 # 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	2987 #endif
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	2988 TCHAR_T *fbp;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2989 unsigned int prefix_count;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2990 int prefixes[2];
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	2991 #if !USE_SNPRINTF
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2992 size_t tmp_length;
8962 aea67e2678d9 Tweak last patch. Bruno Haible <bruno@clisp.org> parents: 8961 diff changeset	2993 TCHAR_T tmpbuf[700];
aea67e2678d9 Tweak last patch. Bruno Haible <bruno@clisp.org> parents: 8961 diff changeset	2994 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	2995 #endif
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2996
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	2997 #if !USE_SNPRINTF \|\| !DCHAR_IS_TCHAR \|\| ENABLE_UNISTDIO \|\| NEED_PRINTF_FLAG_ZERO
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2998 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	2999 width = 0;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3000 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	3001 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3002 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	3003 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3004 int arg;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3005
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3006 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	3007 abort ();
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3008 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	3009 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	3010 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3011 /* "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	3012 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	3013 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	3014 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	3015 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3016 else
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3017 width = arg;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3018 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3019 else
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3020 {
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	3021 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	3022
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3023 do
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3024 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	3025 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	3026 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3027 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	3028 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3029 #endif
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3030
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3031 #if !USE_SNPRINTF
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3032 /* Allocate a temporary buffer of sufficient size for calling
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3033 sprintf. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3034 {
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3035 size_t precision;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3036
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3037 precision = 6;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3038 if (dp->precision_start != dp->precision_end)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3039 {
4886 e4317f1f2e2c Use size_t instead of ssize_t. Bruno Haible <bruno@clisp.org> parents: 4879 diff changeset	3040 if (dp->precision_arg_index != ARG_NONE)
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3041 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3042 int arg;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3043
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3044 if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3045 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3046 arg = a.arg[dp->precision_arg_index].a.a_int;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3047 precision = (arg < 0 ? 0 : arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3048 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3049 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3050 {
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	3051 const FCHAR_T *digitp = dp->precision_start + 1;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3052
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3053 precision = 0;
5066 a2cb70e482fc Fix for format strings like "%2.f". Bruno Haible <bruno@clisp.org> parents: 4886 diff changeset	3054 while (digitp != dp->precision_end)
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3055 precision = xsum (xtimes (precision, 10), *digitp++ - '0');
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3056 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3057 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3058
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3059 switch (dp->conversion)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3060 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3061
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3062 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	3063 # if HAVE_LONG_LONG_INT
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3064 if (type == TYPE_LONGLONGINT \|\| type == TYPE_ULONGLONGINT)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3065 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3066 (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3067 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3068 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3069 + 1; /* turn floor into ceil */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3070 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3071 # endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3072 if (type == TYPE_LONGINT \|\| type == TYPE_ULONGINT)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3073 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3074 (unsigned int) (sizeof (unsigned long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3075 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3076 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3077 + 1; /* turn floor into ceil */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3078 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3079 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3080 (unsigned int) (sizeof (unsigned int) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3081 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3082 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3083 + 1; /* turn floor into ceil */
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3084 if (tmp_length < precision)
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3085 tmp_length = precision;
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3086 /* 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	3087 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	3088 /* 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	3089 tmp_length = xsum (tmp_length, 1);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3090 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3091
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3092 case 'o':
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	3093 # if HAVE_LONG_LONG_INT
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3094 if (type == TYPE_LONGLONGINT \|\| type == TYPE_ULONGLONGINT)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3095 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3096 (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3097 * 0.333334 /* binary -> octal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3098 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3099 + 1; /* turn floor into ceil */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3100 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3101 # endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3102 if (type == TYPE_LONGINT \|\| type == TYPE_ULONGINT)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3103 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3104 (unsigned int) (sizeof (unsigned long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3105 * 0.333334 /* binary -> octal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3106 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3107 + 1; /* turn floor into ceil */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3108 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3109 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3110 (unsigned int) (sizeof (unsigned int) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3111 * 0.333334 /* binary -> octal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3112 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3113 + 1; /* turn floor into ceil */
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3114 if (tmp_length < precision)
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3115 tmp_length = precision;
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3116 /* 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	3117 tmp_length = xsum (tmp_length, 1);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3118 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3119
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3120 case 'x': case 'X':
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	3121 # if HAVE_LONG_LONG_INT
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3122 if (type == TYPE_LONGLONGINT \|\| type == TYPE_ULONGLONGINT)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3123 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3124 (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3125 * 0.25 /* binary -> hexadecimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3126 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3127 + 1; /* turn floor into ceil */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3128 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3129 # endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3130 if (type == TYPE_LONGINT \|\| type == TYPE_ULONGINT)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3131 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3132 (unsigned int) (sizeof (unsigned long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3133 * 0.25 /* binary -> hexadecimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3134 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3135 + 1; /* turn floor into ceil */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3136 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3137 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3138 (unsigned int) (sizeof (unsigned int) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3139 * 0.25 /* binary -> hexadecimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3140 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3141 + 1; /* turn floor into ceil */
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3142 if (tmp_length < precision)
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3143 tmp_length = precision;
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	3144 /* 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	3145 tmp_length = xsum (tmp_length, 2);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3146 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3147
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3148 case 'f': case 'F':
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3149 if (type == TYPE_LONGDOUBLE)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3150 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3151 (unsigned int) (LDBL_MAX_EXP
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3152 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3153 * 2 /* estimate for FLAG_GROUP */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3154 )
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3155 + 1 /* turn floor into ceil */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3156 + 10; /* sign, decimal point etc. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3157 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3158 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3159 (unsigned int) (DBL_MAX_EXP
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3160 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3161 * 2 /* estimate for FLAG_GROUP */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3162 )
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3163 + 1 /* turn floor into ceil */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3164 + 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	3165 tmp_length = xsum (tmp_length, precision);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3166 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3167
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3168 case 'e': case 'E': case 'g': case 'G':
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3169 tmp_length =
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3170 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	3171 tmp_length = xsum (tmp_length, precision);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3172 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3173
8254 bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	3174 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	3175 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	3176 tmp_length =
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	3177 (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	3178 * 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	3179 )
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	3180 + 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	3181 else
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	3182 tmp_length =
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	3183 (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	3184 * 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	3185 )
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	3186 + 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	3187 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	3188 tmp_length = precision;
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	3189 /* 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	3190 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	3191 break;
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	3192
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3193 case 'c':
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	3194 # if HAVE_WINT_T && !WIDE_CHAR_VERSION
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3195 if (type == TYPE_WIDE_CHAR)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3196 tmp_length = MB_CUR_MAX;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3197 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3198 # endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3199 tmp_length = 1;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3200 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3201
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3202 case 's':
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	3203 # if HAVE_WCHAR_T
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3204 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	3205 {
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3206 tmp_length =
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3207 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	3208
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3209 # if !WIDE_CHAR_VERSION
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3210 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	3211 # endif
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3212 }
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3213 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3214 # endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3215 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	3216 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3217
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3218 case 'p':
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3219 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3220 (unsigned int) (sizeof (void ) CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3221 * 0.25 /* binary -> hexadecimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3222 )
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3223 + 1 /* turn floor into ceil */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3224 + 2; /* account for leading 0x */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3225 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3226
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3227 default:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3228 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3229 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3230
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3231 # 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	3232 /* Padding considers the number of characters, therefore the
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3233 number of elements after padding may be
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3234 > max (tmp_length, width)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3235 but is certainly
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3236 <= tmp_length + width. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3237 tmp_length = xsum (tmp_length, width);
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3238 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3239 /* Padding considers the number of elements, says POSIX. */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3240 if (tmp_length < width)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3241 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	3242 # endif
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3243
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3244 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	3245 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3246
8962 aea67e2678d9 Tweak last patch. Bruno Haible <bruno@clisp.org> parents: 8961 diff changeset	3247 if (tmp_length <= sizeof (tmpbuf) / sizeof (TCHAR_T))
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3248 tmp = tmpbuf;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3249 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3250 {
8962 aea67e2678d9 Tweak last patch. Bruno Haible <bruno@clisp.org> parents: 8961 diff changeset	3251 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	3252
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3253 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	3254 /* 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	3255 goto out_of_memory;
8962 aea67e2678d9 Tweak last patch. Bruno Haible <bruno@clisp.org> parents: 8961 diff changeset	3256 tmp = (TCHAR_T *) malloc (tmp_memsize);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3257 if (tmp == NULL)
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3258 /* Out of memory. */
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3259 goto out_of_memory;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3260 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3261 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3262
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3263 /* Decide whether to perform the padding ourselves. */
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3264 #if !DCHAR_IS_TCHAR \|\| ENABLE_UNISTDIO \|\| NEED_PRINTF_FLAG_ZERO
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3265 switch (dp->conversion)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3266 {
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3267 # if !DCHAR_IS_TCHAR \|\| 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	3268 /* If we need conversion from TCHAR_T[] to DCHAR_T[], we need
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3269 to perform the padding after this conversion. Functions
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3270 with unistdio extensions perform the padding based on
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3271 character count rather than element count. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3272 case 'c': case 's':
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3273 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3274 # if NEED_PRINTF_FLAG_ZERO
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3275 case 'f': case 'F': case 'e': case 'E': case 'g': case 'G':
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3276 case 'a': case 'A':
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3277 # endif
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3278 pad_ourselves = 1;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3279 break;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3280 default:
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3281 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	3282 break;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3283 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3284 #endif
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3285
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3286 /* Construct the format string for calling snprintf or
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3287 sprintf. */
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3288 fbp = buf;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3289 *fbp++ = '%';
8803 6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8664 diff changeset	3290 #if NEED_PRINTF_FLAG_GROUPING
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8664 diff changeset	3291 /* 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	3292 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	3293 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	3294 #else
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3295 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	3296 *fbp++ = '\'';
8803 6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8664 diff changeset	3297 #endif
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3298 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	3299 *fbp++ = '-';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3300 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	3301 *fbp++ = '+';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3302 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	3303 *fbp++ = ' ';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3304 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	3305 *fbp++ = '#';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3306 if (!pad_ourselves)
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3307 {
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3308 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	3309 *fbp++ = '0';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3310 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	3311 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3312 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	3313 /* 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	3314 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	3315 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	3316 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3317 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	3318 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	3319 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3320 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3321 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3322 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	3323 do
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3324 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	3325 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	3326 }
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3327 }
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3328 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3329 if (dp->precision_start != dp->precision_end)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3330 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3331 size_t n = dp->precision_end - dp->precision_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	3332 /* The precision 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	3333 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	3334 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	3335 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3336 memcpy (fbp, dp->precision_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	3337 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	3338 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3339 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3340 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3341 const FCHAR_T *mp = dp->precision_start;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3342 do
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3343 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	3344 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	3345 }
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3346 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3347
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3348 switch (type)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3349 {
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	3350 #if HAVE_LONG_LONG_INT
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3351 case TYPE_LONGLONGINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3352 case TYPE_ULONGLONGINT:
8830 abc2bcb16721 Support output of 64-bit numbers on mingw. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	3353 # 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	3354 *fbp++ = 'I';
abc2bcb16721 Support output of 64-bit numbers on mingw. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	3355 *fbp++ = '6';
abc2bcb16721 Support output of 64-bit numbers on mingw. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	3356 *fbp++ = '4';
abc2bcb16721 Support output of 64-bit numbers on mingw. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	3357 break;
abc2bcb16721 Support output of 64-bit numbers on mingw. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	3358 # else
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3359 *fbp++ = 'l';
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3360 /FALLTHROUGH/
8830 abc2bcb16721 Support output of 64-bit numbers on mingw. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	3361 # endif
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3362 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3363 case TYPE_LONGINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3364 case TYPE_ULONGINT:
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	3365 #if HAVE_WINT_T
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3366 case TYPE_WIDE_CHAR:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3367 #endif
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	3368 #if HAVE_WCHAR_T
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3369 case TYPE_WIDE_STRING:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3370 #endif
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3371 *fbp++ = 'l';
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3372 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3373 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	3374 *fbp++ = 'L';
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3375 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3376 default:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3377 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3378 }
8664 40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	3379 #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	3380 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	3381 *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	3382 else
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	3383 #endif
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3384 *fbp = dp->conversion;
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3385 #if USE_SNPRINTF
9361 40389da21b02 Don't use %n on glibc >= 2.3 systems. Bruno Haible <bruno@clisp.org> parents: 9095 diff changeset	3386 # if !(__GLIBC__ > 2 \|\| (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 3))
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3387 fbp[1] = '%';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3388 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	3389 fbp[3] = '\0';
9361 40389da21b02 Don't use %n on glibc >= 2.3 systems. Bruno Haible <bruno@clisp.org> parents: 9095 diff changeset	3390 # else
40389da21b02 Don't use %n on glibc >= 2.3 systems. Bruno Haible <bruno@clisp.org> parents: 9095 diff changeset	3391 /* 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	3392 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	3393 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	3394 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	3395 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	3396 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	3397 (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	3398 in this situation. */
40389da21b02 Don't use %n on glibc >= 2.3 systems. Bruno Haible <bruno@clisp.org> parents: 9095 diff changeset	3399 fbp[1] = '\0';
40389da21b02 Don't use %n on glibc >= 2.3 systems. Bruno Haible <bruno@clisp.org> parents: 9095 diff changeset	3400 # endif
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3401 #else
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3402 fbp[1] = '\0';
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3403 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3404
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3405 /* Construct the arguments for calling snprintf or sprintf. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3406 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	3407 if (!pad_ourselves && dp->width_arg_index != ARG_NONE)
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3408 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3409 if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3410 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3411 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	3412 }
4886 e4317f1f2e2c Use size_t instead of ssize_t. Bruno Haible <bruno@clisp.org> parents: 4879 diff changeset	3413 if (dp->precision_arg_index != ARG_NONE)
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3414 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3415 if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3416 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3417 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	3418 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3419
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3420 #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	3421 /* 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	3422 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	3423 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	3424 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	3425 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	3426 # define TCHARS_PER_DCHAR (sizeof (DCHAR_T) / sizeof (TCHAR_T))
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3427 /* Prepare checking whether snprintf returns the count
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3428 via %n. */
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3429 ENSURE_ALLOCATION (xsum (length, 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	3430 (TCHAR_T ) (result + length) = '\0';
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3431 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3432
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3433 for (;;)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3434 {
8963 f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3435 int count = -1;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3436
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3437 #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	3438 int retcount = 0;
8963 f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3439 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	3440 /* 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	3441 > 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	3442 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	3443 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	3444 maxlen = maxlen * TCHARS_PER_DCHAR;
4704 b7a1b14802c8 Correct cpp indentation. Jim Meyering <jim@meyering.net> parents: 4589 diff changeset	3445 # define SNPRINTF_BUF(arg) \
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3446 switch (prefix_count) \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3447 { \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3448 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	3449 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	3450 maxlen, buf, \
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3451 arg, &count); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3452 break; \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3453 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	3454 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	3455 maxlen, buf, \
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3456 prefixes[0], arg, &count); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3457 break; \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3458 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	3459 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	3460 maxlen, buf, \
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3461 prefixes[0], prefixes[1], arg, \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3462 &count); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3463 break; \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3464 default: \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3465 abort (); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3466 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3467 #else
4704 b7a1b14802c8 Correct cpp indentation. Jim Meyering <jim@meyering.net> parents: 4589 diff changeset	3468 # define SNPRINTF_BUF(arg) \
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3469 switch (prefix_count) \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3470 { \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3471 case 0: \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3472 count = sprintf (tmp, buf, arg); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3473 break; \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3474 case 1: \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3475 count = sprintf (tmp, buf, prefixes[0], arg); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3476 break; \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3477 case 2: \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3478 count = sprintf (tmp, buf, prefixes[0], prefixes[1],\
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3479 arg); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3480 break; \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3481 default: \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3482 abort (); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3483 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3484 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3485
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3486 switch (type)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3487 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3488 case TYPE_SCHAR:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3489 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3490 int arg = a.arg[dp->arg_index].a.a_schar;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3491 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3492 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3493 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3494 case TYPE_UCHAR:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3495 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3496 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	3497 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3498 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3499 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3500 case TYPE_SHORT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3501 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3502 int arg = a.arg[dp->arg_index].a.a_short;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3503 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3504 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3505 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3506 case TYPE_USHORT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3507 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3508 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	3509 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3510 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3511 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3512 case TYPE_INT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3513 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3514 int arg = a.arg[dp->arg_index].a.a_int;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3515 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3516 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3517 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3518 case TYPE_UINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3519 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3520 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	3521 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3522 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3523 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3524 case TYPE_LONGINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3525 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3526 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	3527 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3528 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3529 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3530 case TYPE_ULONGINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3531 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3532 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	3533 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3534 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3535 break;
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	3536 #if HAVE_LONG_LONG_INT
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3537 case TYPE_LONGLONGINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3538 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3539 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	3540 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3541 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3542 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3543 case TYPE_ULONGLONGINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3544 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3545 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	3546 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3547 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3548 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3549 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3550 case TYPE_DOUBLE:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3551 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3552 double arg = a.arg[dp->arg_index].a.a_double;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3553 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3554 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3555 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3556 case TYPE_LONGDOUBLE:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3557 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3558 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	3559 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3560 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3561 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3562 case TYPE_CHAR:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3563 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3564 int arg = a.arg[dp->arg_index].a.a_char;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3565 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3566 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3567 break;
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	3568 #if HAVE_WINT_T
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3569 case TYPE_WIDE_CHAR:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3570 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3571 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	3572 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3573 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3574 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3575 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3576 case TYPE_STRING:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3577 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3578 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	3579 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3580 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3581 break;
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	3582 #if HAVE_WCHAR_T
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3583 case TYPE_WIDE_STRING:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3584 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3585 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	3586 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3587 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3588 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3589 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3590 case TYPE_POINTER:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3591 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3592 void *arg = a.arg[dp->arg_index].a.a_pointer;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3593 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3594 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3595 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3596 default:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3597 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3598 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3599
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3600 #if USE_SNPRINTF
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3601 /* Portability: Not all implementations of snprintf()
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3602 are ISO C 99 compliant. Determine the number of
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3603 bytes that snprintf() has produced or would have
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3604 produced. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3605 if (count >= 0)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3606 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3607 /* Verify that snprintf() has NUL-terminated its
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3608 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	3609 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	3610 && ((TCHAR_T *) (result + length)) [count] != '\0')
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3611 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3612 /* Portability hack. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3613 if (retcount > count)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3614 count = retcount;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3615 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3616 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3617 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3618 /* snprintf() doesn't understand the '%n'
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3619 directive. */
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3620 if (fbp[1] != '\0')
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3621 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3622 /* Don't use the '%n' directive; instead, look
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3623 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	3624 fbp[1] = '\0';
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3625 continue;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3626 }
4801 83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	3627 else
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	3628 {
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	3629 /* 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	3630 if (retcount < 0)
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	3631 {
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	3632 /* 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	3633 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	3634 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	3635 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	3636 buffer is too small. */
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3637 size_t bigger_need =
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3638 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	3639 ENSURE_ALLOCATION (bigger_need);
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	3640 continue;
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	3641 }
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	3642 else
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	3643 count = retcount;
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	3644 }
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3645 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3646 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3647
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3648 /* Attempt to handle failure. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3649 if (count < 0)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3650 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3651 if (!(result == resultbuf \|\| result == NULL))
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3652 free (result);
4879 9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3653 if (buf_malloced != NULL)
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3654 free (buf_malloced);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3655 CLEANUP ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3656 errno = EINVAL;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3657 return NULL;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3658 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3659
8963 f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3660 #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	3661 /* 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	3662 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	3663 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	3664 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	3665 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	3666 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	3667 {
9371 8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3668 /* 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	3669 allocating more memory will not increase maxlen.
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3670 Instead of looping, bail out. */
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3671 if (maxlen == INT_MAX / TCHARS_PER_DCHAR)
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3672 goto overflow;
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3673 else
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3674 {
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3675 /* Need at least count * sizeof (TCHAR_T) bytes.
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3676 But allocate proportionally, to avoid looping
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3677 eternally if snprintf() reports a too small
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3678 count. */
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3679 size_t n =
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3680 xmax (xsum (length,
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3681 (count + TCHARS_PER_DCHAR - 1)
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3682 / TCHARS_PER_DCHAR),
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3683 xtimes (allocated, 2));
8837 6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3684
9371 8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3685 ENSURE_ALLOCATION (n);
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3686 continue;
8b3c48038257 Don't report an unjustified overflow error. Bruno Haible <bruno@clisp.org> parents: 9361 diff changeset	3687 }
8963 f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3688 }
8837 6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3689 #endif
8963 f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3690
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3691 #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	3692 # 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	3693 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	3694 /* 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	3695 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	3696 abort ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3697 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3698
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3699 /* 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	3700 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	3701 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3702 /* 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	3703 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	3704 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	3705 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	3706 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	3707 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	3708 /* 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	3709 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	3710 [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	3711 # 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	3712 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	3713 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3714 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	3715 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3716 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	3717 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	3718 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	3719 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	3720 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	3721 NULL,
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3722 &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	3723 < 0)
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3724 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3725 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	3726 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	3727 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	3728 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	3729 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	3730 CLEANUP ();
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3731 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	3732 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	3733 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3734 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	3735 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	3736 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	3737 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	3738 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3739 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3740 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3741 /* 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	3742 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	3743 # 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	3744 /* 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	3745 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	3746 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	3747 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	3748 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3749 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3750 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	3751 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	3752 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	3753
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3754 # 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	3755 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	3756 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3757 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	3758 /* 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	3759 (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	3760 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	3761 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3762 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3763 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3764 /* 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	3765 (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	3766 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	3767 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	3768 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3769 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3770 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	3771 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	3772 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3773 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	3774 /* 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	3775 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	3776 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	3777 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	3778 --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	3779 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3780 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3781 #endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3782
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3783 #if DCHAR_IS_TCHAR && !USE_SNPRINTF
8963 f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3784 /* Make room for the result. */
f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3785 if (count > allocated - length)
f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3786 {
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3787 /* Need at least count elements. But allocate
8963 f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3788 proportionally. */
f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3789 size_t n =
f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3790 xmax (xsum (length, count), xtimes (allocated, 2));
f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3791
f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3792 ENSURE_ALLOCATION (n);
8837 6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3793 }
8963 f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3794 #endif
f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3795
f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3796 /* Here count <= allocated - length. */
8837 6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3797
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3798 /* Perform padding. */
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3799 #if !DCHAR_IS_TCHAR \|\| ENABLE_UNISTDIO \|\| NEED_PRINTF_FLAG_ZERO
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3800 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	3801 {
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3802 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	3803 # 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	3804 /* 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	3805 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	3806 value. */
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3807 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	3808 # else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3809 /* 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	3810 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	3811 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	3812 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3813 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	3814 {
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3815 size_t pad = width - w;
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3816 # 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	3817 /* 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	3818 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	3819 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3820 /* 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	3821 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	3822 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	3823 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	3824 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	3825
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3826 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	3827 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	3828 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	3829 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3830 /* Here count + pad <= allocated - length. */
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3831 # 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	3832 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3833 # 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	3834 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	3835 # 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	3836 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	3837 # 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	3838 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	3839 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	3840 # if NEED_PRINTF_FLAG_ZERO
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3841 DCHAR_T *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	3842 # 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	3843 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	3844 \|\| 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	3845 /* 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	3846 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	3847 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3848 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3849 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3850 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	3851 /* 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	3852 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	3853 \|\| (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	3854 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	3855 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3856 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3857 /* 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	3858 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	3859 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	3860
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3861 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	3862
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3863 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	3864 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3865 /* 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	3866 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	3867 *p++ = ' ';
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3868 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3869 # if NEED_PRINTF_FLAG_ZERO
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3870 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	3871 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3872 /* 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	3873 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	3874
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3875 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	3876 --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	3877 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	3878 *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	3879 }
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3880 # endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3881 else
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3882 {
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3883 /* 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	3884 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	3885
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3886 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	3887 --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	3888 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	3889 *p++ = ' ';
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3890 }
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3891 }
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3892 }
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3893 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3894 #endif
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3895
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3896 #if DCHAR_IS_TCHAR && !USE_SNPRINTF
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3897 if (count >= tmp_length)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3898 /* tmp_length was incorrectly calculated - fix the
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3899 code above! */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3900 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3901 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3902
8963 f2b97e5b14f5 Tweak the size computations and reallocations. Bruno Haible <bruno@clisp.org> parents: 8962 diff changeset	3903 /* Here still count <= allocated - length. */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3904
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3905 #if !DCHAR_IS_TCHAR \|\| USE_SNPRINTF
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3906 /* The snprintf() result did fit. */
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 /* Append the sprintf() result. */
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	3909 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	3910 #endif
7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3911 #if !USE_SNPRINTF
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3912 if (tmp != tmpbuf)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3913 free (tmp);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3914 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3915
8664 40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	3916 #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	3917 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	3918 {
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	3919 /* Convert the %f result to upper case for %F. */
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	3920 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	3921 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	3922 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	3923 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	3924 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	3925 }
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	3926 #endif
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	3927
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3928 length += count;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3929 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3930 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3931 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3932 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3933 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3934
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3935 /* Add the final NUL. */
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3936 ENSURE_ALLOCATION (xsum (length, 1));
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3937 result[length] = '\0';
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3938
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3939 if (result != resultbuf && length + 1 < allocated)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3940 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3941 /* Shrink the allocated memory if possible. */
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	3942 DCHAR_T *memory;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3943
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	3944 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	3945 if (memory != NULL)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3946 result = memory;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3947 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3948
4879 9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3949 if (buf_malloced != NULL)
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3950 free (buf_malloced);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3951 CLEANUP ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3952 *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	3953 /* 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	3954 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	3955 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	3956 not have this limitation. */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3957 return result;
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3958
8468 336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3959 overflow:
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3960 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	3961 free (result);
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3962 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	3963 free (buf_malloced);
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3964 CLEANUP ();
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3965 errno = EOVERFLOW;
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3966 return NULL;
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3967
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3968 out_of_memory:
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3969 if (!(result == resultbuf \|\| result == NULL))
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3970 free (result);
4879 9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3971 if (buf_malloced != NULL)
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3972 free (buf_malloced);
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3973 out_of_memory_1:
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3974 CLEANUP ();
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3975 errno = ENOMEM;
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3976 return NULL;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3977 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3978 }
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3979
8973 7df86a1985e4 Add support for Unicode strings (both as output format and as arguments to Bruno Haible <bruno@clisp.org> parents: 8963 diff changeset	3980 #undef TCHARS_PER_DCHAR
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3981 #undef SNPRINTF
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3982 #undef USE_SNPRINTF
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3983 #undef PRINTF_PARSE
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3984 #undef DIRECTIVES
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3985 #undef DIRECTIVE
8961 f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	3986 #undef TCHAR_T
f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	3987 #undef DCHAR_T
f1938b0a1252 More type parameters. Bruno Haible <bruno@clisp.org> parents: 8916 diff changeset	3988 #undef FCHAR_T
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3989 #undef VASNPRINTF

Mercurial > hg > octave-lojdl > gnulib-hg

annotate lib/vasnprintf.c @ 9439:9d292d1d891c