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

annotate lib/vasnprintf.c @ 8915:f15c03805bd9

Fix possible compilation error.

author	Bruno Haible <bruno@clisp.org>
date	Wed, 06 Jun 2007 01:36:14 +0000
parents	9e203d8ade65
children	353e81af4858

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
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	18 /* 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	19 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	20 <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	21 #ifndef _GNU_SOURCE
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	22 # define _GNU_SOURCE 1
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	23 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	24
7304 1c4ed7637c24 Include <config.h> unconditionally. Bruno Haible <bruno@clisp.org> parents: 7218 diff changeset	25 #include <config.h>
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	26 #ifndef IN_LIBINTL
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	27 # include <alloca.h>
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	28 #endif
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	29
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	30 /* Specification. */
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	31 #if WIDE_CHAR_VERSION
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	32 # include "vasnwprintf.h"
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	33 #else
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	34 # include "vasnprintf.h"
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	35 #endif
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	36
8400 655fca11a0e6 The decimal point must be locale dependent. Bruno Haible <bruno@clisp.org> parents: 8343 diff changeset	37 #include <locale.h> /* localeconv() */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	38 #include <stdio.h> /* snprintf(), sprintf() */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	39 #include <stdlib.h> /* abort(), malloc(), realloc(), free() */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	40 #include <string.h> /* memcpy(), strlen() */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	41 #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	42 #include <limits.h> /* CHAR_BIT */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	43 #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	44 #if HAVE_NL_LANGINFO
35eb5062216c Prefer nl_langinfo over localeconv. Bruno Haible <bruno@clisp.org> parents: 8531 diff changeset	45 # include <langinfo.h>
35eb5062216c Prefer nl_langinfo over localeconv. Bruno Haible <bruno@clisp.org> parents: 8531 diff changeset	46 #endif
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	47 #if WIDE_CHAR_VERSION
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	48 # include "wprintf-parse.h"
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	49 #else
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	50 # include "printf-parse.h"
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	51 #endif
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	52
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	53 /* Checked size_t computations. */
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	54 #include "xsize.h"
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	55
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	56 #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	57 # include <math.h>
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	58 # include "float+.h"
8915 f15c03805bd9 Fix possible compilation error. Bruno Haible <bruno@clisp.org> parents: 8865 diff changeset	59 # 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	60 #endif
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	61
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	62 #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	63 # include <math.h>
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	64 # include "isnan.h"
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	65 #endif
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	66
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	67 #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	68 # 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	69 # include "isnanl-nolibm.h"
8915 f15c03805bd9 Fix possible compilation error. Bruno Haible <bruno@clisp.org> parents: 8865 diff changeset	70 # include "fpucw.h"
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	71 #endif
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	72
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	73 #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	74 # include <math.h>
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	75 # include "isnan.h"
8526 67e9a647f2fa Fix includes. Bruno Haible <bruno@clisp.org> parents: 8487 diff changeset	76 # include "printf-frexp.h"
8648 359d135f748c Assume 'long double' exists. Bruno Haible <bruno@clisp.org> parents: 8569 diff changeset	77 # include "isnanl-nolibm.h"
359d135f748c Assume 'long double' exists. Bruno Haible <bruno@clisp.org> parents: 8569 diff changeset	78 # include "printf-frexpl.h"
359d135f748c Assume 'long double' exists. Bruno Haible <bruno@clisp.org> parents: 8569 diff changeset	79 # include "fpucw.h"
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	80 #endif
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	81
8468 336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	82 /* 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	83 #ifndef EOVERFLOW
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	84 # define EOVERFLOW E2BIG
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	85 #endif
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	86
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	87 #if HAVE_WCHAR_T
9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	88 # 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	89 # 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	90 # else
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	91 /* 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	92 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	93 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	94 twice in the same compilation unit. */
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	95 # ifndef local_wcslen_defined
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	96 # 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	97 static size_t
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	98 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	99 {
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	100 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	101
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	102 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	103 ;
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	104 return ptr - s;
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	105 }
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	106 # endif
4523 6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	107 # endif
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	108 #endif
6cc4874a100b Work around the lack of wcslen() on Solaris 2.5.1. Bruno Haible <bruno@clisp.org> parents: 4444 diff changeset	109
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	110 #if WIDE_CHAR_VERSION
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	111 # define VASNPRINTF vasnwprintf
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	112 # define CHAR_T wchar_t
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	113 # define DIRECTIVE wchar_t_directive
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	114 # define DIRECTIVES wchar_t_directives
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	115 # define PRINTF_PARSE wprintf_parse
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	116 # define USE_SNPRINTF 1
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	117 # if HAVE_DECL__SNWPRINTF
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	118 /* 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	119 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	120 # define SNPRINTF _snwprintf
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	121 # else
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	122 /* Unix. */
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	123 # define SNPRINTF swprintf
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	124 # endif
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	125 #else
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	126 # define VASNPRINTF vasnprintf
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	127 # define CHAR_T char
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	128 # define DIRECTIVE char_directive
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	129 # define DIRECTIVES char_directives
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	130 # define PRINTF_PARSE printf_parse
8831 d3f907c33d15 Work around broken snprintf function on BeOS. Bruno Haible <bruno@clisp.org> parents: 8830 diff changeset	131 # /* 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	132 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	133 size argument is >= 0x3000000. */
d3f907c33d15 Work around broken snprintf function on BeOS. Bruno Haible <bruno@clisp.org> parents: 8830 diff changeset	134 # 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	135 # define USE_SNPRINTF 1
d3f907c33d15 Work around broken snprintf function on BeOS. Bruno Haible <bruno@clisp.org> parents: 8830 diff changeset	136 # else
d3f907c33d15 Work around broken snprintf function on BeOS. Bruno Haible <bruno@clisp.org> parents: 8830 diff changeset	137 # define USE_SNPRINTF 0
d3f907c33d15 Work around broken snprintf function on BeOS. Bruno Haible <bruno@clisp.org> parents: 8830 diff changeset	138 # endif
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	139 # if HAVE_DECL__SNPRINTF
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	140 /* Windows. */
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	141 # define SNPRINTF _snprintf
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	142 # else
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	143 /* Unix. */
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	144 # define SNPRINTF snprintf
8417 ee40afd85f2c Avoid an endless recursion. Bruno Haible <bruno@clisp.org> parents: 8400 diff changeset	145 /* 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	146 # undef snprintf
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	147 # endif
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	148 #endif
8424 ec3450ce9889 Use the system's sprintf function. Bruno Haible <bruno@clisp.org> parents: 8417 diff changeset	149 /* 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	150 #undef sprintf
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	151
8569 378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	152 #if NEED_PRINTF_DIRECTIVE_A && !defined IN_LIBINTL
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	153 /* 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	154 # 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	155 # 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	156 static char
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	157 decimal_point_char ()
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	158 {
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	159 const char *point;
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	160 /* 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	161 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	162 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	163 is rarely multithread-safe. */
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	164 # 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	165 point = nl_langinfo (RADIXCHAR);
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	166 # elif 1
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	167 char pointbuf[5];
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	168 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	169 point = &pointbuf[1];
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	170 # else
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	171 point = localeconv () -> decimal_point;
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	172 # endif
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	173 /* 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	174 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	175 }
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	176 # endif
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	177 #endif
378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	178
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	179 #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	180
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	181 /* 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	182 static int
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	183 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	184 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	185 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	186 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	187
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	188 #endif
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	189
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	190 #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	191
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	192 /* 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	193 static int
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	194 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	195 {
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	196 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	197 }
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	198
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	199 #endif
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	200
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	201 #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	202
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	203 /* 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	204 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	205 (and slower) algorithms. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	206
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	207 typedef unsigned int mp_limb_t;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	208 # define GMP_LIMB_BITS 32
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	209 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	210
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	211 typedef unsigned long long mp_twolimb_t;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	212 # define GMP_TWOLIMB_BITS 64
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	213 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	214
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	215 /* Representation of a bignum >= 0. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	216 typedef struct
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	217 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	218 size_t nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	219 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	220 } mpn_t;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	221
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	222 /* Compute the product of two bignums >= 0.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	223 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	224 allocation failure. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	225 static void *
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	226 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	227 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	228 const mp_limb_t *p1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	229 const mp_limb_t *p2;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	230 size_t len1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	231 size_t len2;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	232
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	233 if (src1.nlimbs <= src2.nlimbs)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	234 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	235 len1 = src1.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	236 p1 = src1.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	237 len2 = src2.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	238 p2 = src2.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	239 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	240 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	241 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	242 len1 = src2.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	243 p1 = src2.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	244 len2 = src1.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	245 p2 = src1.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	246 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	247 /* Now 0 <= len1 <= len2. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	248 if (len1 == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	249 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	250 /* src1 or src2 is zero. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	251 dest->nlimbs = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	252 dest->limbs = (mp_limb_t *) malloc (1);
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 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	255 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	256 /* Here 1 <= len1 <= len2. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	257 size_t dlen;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	258 mp_limb_t *dp;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	259 size_t k, i, j;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	260
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	261 dlen = len1 + len2;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	262 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	263 if (dp == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	264 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	265 for (k = len2; k > 0; )
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	266 dp[--k] = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	267 for (i = 0; i < len1; i++)
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 mp_limb_t digit1 = p1[i];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	270 mp_twolimb_t carry = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	271 for (j = 0; j < len2; j++)
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 mp_limb_t digit2 = p2[j];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	274 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	275 carry += dp[i + j];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	276 dp[i + j] = (mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	277 carry = carry >> GMP_LIMB_BITS;
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 dp[i + len2] = (mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	280 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	281 /* Normalise. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	282 while (dlen > 0 && dp[dlen - 1] == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	283 dlen--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	284 dest->nlimbs = dlen;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	285 dest->limbs = dp;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	286 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	287 return dest->limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	288 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	289
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	290 /* 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	291 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	292 the remainder.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	293 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	294 q is incremented.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	295 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	296 allocation failure. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	297 static void *
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	298 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	299 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	300 /* Algorithm:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	301 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	302 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	303 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	304 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	305 r:=0, j:=m,
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	306 while j>0 do
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	307 {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	308 = 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	309 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	310 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	311 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	312 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	313 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	314 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	315 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	316 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	317 Compute q* :
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	318 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	319 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	320 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	321 and c3 := b[n-2] * q*.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	322 {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	323 occurred. Furthermore 0 <= c3 < beta^2.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	324 If there was overflow and
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	325 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	326 the next test can be skipped.}
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	327 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	328 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	329 If q* > 0:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	330 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	331 [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	332 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	333 u := u + q* * b[i],
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	334 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	335 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	336 r[n+j]:=r[n+j]-u.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	337 {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	338 < q* + 1 <= beta,
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	339 the carry u does not overflow.}
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	340 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	341 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	342 Set q[j] := q*.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	343 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	344 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	345 rest r.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	346 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	347 Finally, round-to-even:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	348 Shift r left by 1 bit.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	349 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	350 */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	351 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	352 size_t a_len = a.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	353 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	354 size_t b_len = b.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	355 mp_limb_t *roomptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	356 mp_limb_t *tmp_roomptr = NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	357 mp_limb_t *q_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	358 size_t q_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	359 mp_limb_t *r_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	360 size_t r_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	361
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	362 /* Allocate room for a_len+2 digits.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	363 (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	364 final rounding of q.) */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	365 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	366 if (roomptr == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	367 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	368
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	369 /* Normalise a. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	370 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	371 a_len--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	372
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	373 /* Normalise b. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	374 for (;;)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	375 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	376 if (b_len == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	377 /* Division by zero. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	378 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	379 if (b_ptr[b_len - 1] == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	380 b_len--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	381 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	382 break;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	383 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	384
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	385 /* 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	386
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	387 if (a_len < b_len)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	388 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	389 /* 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	390 r_ptr = roomptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	391 r_len = a_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	392 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	393 q_ptr = roomptr + a_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	394 q_len = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	395 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	396 else if (b_len == 1)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	397 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	398 /* n=1: single precision division.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	399 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	400 r_ptr = roomptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	401 q_ptr = roomptr + 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	402 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	403 mp_limb_t den = b_ptr[0];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	404 mp_limb_t remainder = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	405 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	406 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	407 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	408 for (count = a_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	409 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	410 mp_twolimb_t num =
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	411 ((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	412 *--destptr = num / den;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	413 remainder = num % den;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	414 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	415 /* Normalise and store r. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	416 if (remainder > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	417 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	418 r_ptr[0] = remainder;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	419 r_len = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	420 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	421 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	422 r_len = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	423 /* Normalise q. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	424 q_len = a_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	425 if (q_ptr[q_len - 1] == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	426 q_len--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	427 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	428 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	429 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	430 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	431 /* n>1: multiple precision division.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	432 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	433 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	434 /* Determine s. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	435 size_t s;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	436 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	437 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	438 s = 31;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	439 if (msd >= 0x10000)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	440 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	441 msd = msd >> 16;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	442 s -= 16;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	443 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	444 if (msd >= 0x100)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	445 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	446 msd = msd >> 8;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	447 s -= 8;
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 if (msd >= 0x10)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	450 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	451 msd = msd >> 4;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	452 s -= 4;
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 if (msd >= 0x4)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	455 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	456 msd = msd >> 2;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	457 s -= 2;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	458 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	459 if (msd >= 0x2)
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 msd = msd >> 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	462 s -= 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	463 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	464 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	465 /* 0 <= s < GMP_LIMB_BITS.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	466 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	467 if (s > 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 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	470 if (tmp_roomptr == NULL)
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 free (roomptr);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	473 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	474 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	475 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	476 const mp_limb_t *sourceptr = b_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	477 mp_limb_t *destptr = tmp_roomptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	478 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	479 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	480 for (count = b_len; count > 0; count--)
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 accu += (mp_twolimb_t) *sourceptr++ << s;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	483 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	484 accu = accu >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	485 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	486 /* 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	487 if (accu != 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	488 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	489 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	490 b_ptr = tmp_roomptr;
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 /* 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	493 Memory layout:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	494 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	495 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	496 r_ptr = roomptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	497 if (s == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	498 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	499 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	500 r_ptr[a_len] = 0;
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 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	503 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	504 const mp_limb_t *sourceptr = a_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	505 mp_limb_t *destptr = r_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	506 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	507 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	508 for (count = a_len; count > 0; count--)
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 accu += (mp_twolimb_t) *sourceptr++ << s;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	511 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	512 accu = accu >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	513 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	514 *destptr++ = (mp_limb_t) accu;
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 q_ptr = roomptr + b_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	517 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	518 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	519 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	520 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	521 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	522 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	523 ((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	524 /* Division loop, traversed m-n+1 times.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	525 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	526 for (;;)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	527 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	528 mp_limb_t q_star;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	529 mp_limb_t c1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	530 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	531 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	532 /* 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	533 mp_twolimb_t num =
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	534 ((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	535 \| r_ptr[j + b_len - 1];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	536 q_star = num / b_msd;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	537 c1 = num % b_msd;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	538 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	539 else
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 /* 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	542 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	543 /* 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	544 <==> 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	545 <==> 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	546 {<= beta !}.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	547 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	548 (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	549 <==> 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	550 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	551 \|\| (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	552 /* 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	553 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	554 carry. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	555 goto subtract;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	556 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	557 /* q_star = q*,
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	558 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	559 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	560 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	561 ((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	562 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	563 (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	564 /* 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	565 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	566 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	567 this can happen only twice. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	568 if (c3 > c2)
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 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	571 if (c3 - c2 > b_msdd)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	572 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	573 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	574 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	575 if (q_star > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	576 subtract:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	577 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	578 /* Subtract r := r - b * q* * beta^j. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	579 mp_limb_t cr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	580 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	581 const mp_limb_t *sourceptr = b_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	582 mp_limb_t *destptr = r_ptr + j;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	583 mp_twolimb_t carry = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	584 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	585 for (count = b_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	586 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	587 /* Here 0 <= carry <= q. /
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	588 carry =
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	589 carry
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	590 + (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	591 + (mp_limb_t) ~(*destptr);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	592 /* Here 0 <= carry <= betaq + beta-1. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	593 *destptr++ = ~(mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	594 carry = carry >> GMP_LIMB_BITS; /* <= q* */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	595 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	596 cr = (mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	597 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	598 /* 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	599 r_ptr[j + b_len]. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	600 if (cr > r_ptr[j + b_len])
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	601 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	602 /* Subtraction gave a carry. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	603 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	604 /* Add b back. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	605 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	606 const mp_limb_t *sourceptr = b_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	607 mp_limb_t *destptr = r_ptr + j;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	608 mp_limb_t carry = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	609 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	610 for (count = b_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	611 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	612 mp_limb_t source1 = *sourceptr++;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	613 mp_limb_t source2 = *destptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	614 *destptr++ = source1 + source2 + carry;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	615 carry =
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	616 (carry
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	617 ? source1 >= (mp_limb_t) ~source2
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	618 : source1 > (mp_limb_t) ~source2);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	619 }
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 /* 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	622 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	623 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	624 /* 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	625 q_ptr[j] = q_star;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	626 if (j == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	627 break;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	628 j--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	629 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	630 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	631 r_len = b_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	632 /* Normalise q. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	633 if (q_ptr[q_len - 1] == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	634 q_len--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	635 # 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	636 b is shifted left by s bits. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	637 /* Shift r right by s bits. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	638 if (s > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	639 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	640 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	641 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	642 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	643 for (count = r_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	644 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	645 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	646 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	647 *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	648 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	649 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	650 # endif
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	651 /* Normalise r. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	652 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	653 r_len--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	654 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	655 /* Compare r << 1 with b. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	656 if (r_len > b_len)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	657 goto increment_q;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	658 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	659 size_t i;
8835 c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	660 for (i = b_len;;)
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	661 {
8835 c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	662 mp_limb_t r_i =
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	663 (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	664 \| (i < r_len ? r_ptr[i] << 1 : 0);
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	665 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	666 if (r_i > b_i)
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	667 goto increment_q;
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	668 if (r_i < b_i)
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	669 goto keep_q;
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	670 if (i == 0)
c06bc412ffc3 Fix small bug in 'divide' function. Bruno Haible <bruno@clisp.org> parents: 8832 diff changeset	671 break;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	672 i--;
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 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	676 /* q is odd. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	677 increment_q:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	678 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	679 size_t i;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	680 for (i = 0; i < q_len; i++)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	681 if (++(q_ptr[i]) != 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	682 goto keep_q;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	683 q_ptr[q_len++] = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	684 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	685 keep_q:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	686 if (tmp_roomptr != NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	687 free (tmp_roomptr);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	688 q->limbs = q_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	689 q->nlimbs = q_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	690 return roomptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	691 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	692
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	693 /* 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	694 representation.
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	695 Destroys the contents of a.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	696 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	697 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	698 of memory allocation failure. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	699 static char *
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	700 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	701 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	702 mp_limb_t *a_ptr = a.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	703 size_t a_len = a.nlimbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	704 /* 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	705 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	706 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	707 if (c_ptr != NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	708 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	709 char *d_ptr = c_ptr;
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	710 for (; extra_zeroes > 0; extra_zeroes--)
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	711 *d_ptr++ = '0';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	712 while (a_len > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	713 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	714 /* Divide a by 10^9, in-place. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	715 mp_limb_t remainder = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	716 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	717 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	718 for (count = a_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	719 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	720 mp_twolimb_t num =
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	721 ((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	722 *ptr = num / 1000000000;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	723 remainder = num % 1000000000;
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 /* Store the remainder as 9 decimal digits. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	726 for (count = 9; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	727 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	728 *d_ptr++ = '0' + (remainder % 10);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	729 remainder = remainder / 10;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	730 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	731 /* Normalize a. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	732 if (a_ptr[a_len - 1] == 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	733 a_len--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	734 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	735 /* Remove leading zeroes. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	736 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	737 d_ptr--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	738 /* But keep at least one zero. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	739 if (d_ptr == c_ptr)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	740 *d_ptr++ = '0';
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	741 /* Terminate the string. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	742 *d_ptr = '\0';
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	743 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	744 return c_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	745 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	746
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	747 /* Assuming x is finite and >= 0:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	748 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	749 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	750 allocation failure. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	751 static void *
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	752 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	753 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	754 mpn_t m;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	755 int exp;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	756 long double y;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	757 size_t i;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	758
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	759 /* Allocate memory for result. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	760 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	761 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	762 if (m.limbs == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	763 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	764 /* Split into exponential part and mantissa. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	765 y = frexpl (x, &exp);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	766 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	767 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	768 /* 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	769 latter is an integer. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	770 /* 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	771 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	772 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	773 '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	774 doesn't matter). */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	775 # 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	776 # 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	777 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	778 mp_limb_t hi, lo;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	779 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	780 hi = (int) y;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	781 y -= hi;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	782 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	783 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	784 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	785 lo = (int) y;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	786 y -= lo;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	787 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	788 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	789 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	790 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	791 # else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	792 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	793 mp_limb_t d;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	794 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	795 d = (int) y;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	796 y -= d;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	797 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	798 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	799 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	800 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	801 # endif
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	802 # endif
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	803 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	804 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	805 mp_limb_t hi, lo;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	806 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	807 hi = (int) y;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	808 y -= hi;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	809 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	810 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	811 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	812 lo = (int) y;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	813 y -= lo;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	814 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	815 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	816 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	817 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	818 if (!(y == 0.0L))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	819 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	820 /* Normalise. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	821 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	822 m.nlimbs--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	823 *mp = m;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	824 *ep = exp - LDBL_MANT_BIT;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	825 return m.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	826 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	827
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	828 /* 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	829 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	830 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	831 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	832 of memory allocation failure. */
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	833 static char *
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	834 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	835 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	836 int e;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	837 mpn_t m;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	838 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	839 int s;
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	840 size_t extra_zeroes;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	841 unsigned int abs_n;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	842 unsigned int abs_s;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	843 mp_limb_t *pow5_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	844 size_t pow5_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	845 unsigned int s_limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	846 unsigned int s_bits;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	847 mpn_t pow5;
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	848 mpn_t z;
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	849 void *z_memory;
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	850 char *digits;
8832 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 if (memory == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	853 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	854 /* x = 2^e * m, hence
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	855 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	856 = round (2^s * 5^n * m). */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	857 s = e + n;
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	858 extra_zeroes = 0;
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	859 /* 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	860 if (s > 0 && n > 0)
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	861 {
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	862 extra_zeroes = (s < n ? s : n);
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	863 s -= extra_zeroes;
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	864 n -= extra_zeroes;
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	865 }
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	866 /* 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	867 Before converting to decimal, we need to compute
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	868 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	869 /* 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	870 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	871 abs_n = (n >= 0 ? n : -n);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	872 abs_s = (s >= 0 ? s : -s);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	873 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	874 + abs_s / GMP_LIMB_BITS + 1)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	875 * sizeof (mp_limb_t));
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	876 if (pow5_ptr == NULL)
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 free (memory);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	879 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	880 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	881 /* Initialize with 1. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	882 pow5_ptr[0] = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	883 pow5_len = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	884 /* Multiply with 5^\|n\|. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	885 if (abs_n > 0)
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 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	888 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	889 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	890 48828125, 244140625, 1220703125
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	891 };
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	892 unsigned int n13;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	893 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	894 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	895 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	896 size_t j;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	897 mp_twolimb_t carry = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	898 for (j = 0; j < pow5_len; j++)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	899 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	900 mp_limb_t digit2 = pow5_ptr[j];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	901 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	902 pow5_ptr[j] = (mp_limb_t) carry;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	903 carry = carry >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	904 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	905 if (carry > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	906 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	907 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	908 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	909 s_limbs = abs_s / GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	910 s_bits = abs_s % GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	911 if (n >= 0 ? s >= 0 : s <= 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	912 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	913 /* Multiply with 2^\|s\|. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	914 if (s_bits > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	915 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	916 mp_limb_t *ptr = pow5_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	917 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	918 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	919 for (count = pow5_len; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	920 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	921 accu += (mp_twolimb_t) *ptr << s_bits;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	922 *ptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	923 accu = accu >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	924 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	925 if (accu > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	926 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	927 *ptr = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	928 pow5_len++;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	929 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	930 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	931 if (s_limbs > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	932 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	933 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	934 for (count = pow5_len; count > 0;)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	935 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	936 count--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	937 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	938 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	939 for (count = s_limbs; count > 0;)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	940 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	941 count--;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	942 pow5_ptr[count] = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	943 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	944 pow5_len += s_limbs;
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 pow5.limbs = pow5_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	947 pow5.nlimbs = pow5_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	948 if (n >= 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	949 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	950 /* Multiply m with pow5. No division needed. */
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	951 z_memory = multiply (m, pow5, &z);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	952 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	953 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	954 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	955 /* Divide m by pow5 and round. */
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	956 z_memory = divide (m, pow5, &z);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	957 }
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 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	960 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	961 pow5.limbs = pow5_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	962 pow5.nlimbs = pow5_len;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	963 if (n >= 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	964 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	965 /* n >= 0, s < 0.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	966 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	967 mpn_t numerator;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	968 mpn_t denominator;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	969 void *tmp_memory;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	970 tmp_memory = multiply (m, pow5, &numerator);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	971 if (tmp_memory == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	972 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	973 free (pow5_ptr);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	974 free (memory);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	975 return NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	976 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	977 /* Construct 2^\|s\|. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	978 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	979 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	980 size_t i;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	981 for (i = 0; i < s_limbs; i++)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	982 ptr[i] = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	983 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	984 denominator.limbs = ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	985 denominator.nlimbs = s_limbs + 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	986 }
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	987 z_memory = divide (numerator, denominator, &z);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	988 free (tmp_memory);
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 else
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 /* n < 0, s > 0.
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	993 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	994 mpn_t numerator;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	995 mp_limb_t *num_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	996 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	997 * sizeof (mp_limb_t));
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	998 if (num_ptr == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	999 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1000 free (pow5_ptr);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1001 free (memory);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1002 return NULL;
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 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1005 mp_limb_t *destptr = num_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1006 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1007 size_t i;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1008 for (i = 0; i < s_limbs; i++)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1009 *destptr++ = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1010 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1011 if (s_bits > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1012 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1013 const mp_limb_t *sourceptr = m.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1014 mp_twolimb_t accu = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1015 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1016 for (count = m.nlimbs; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1017 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1018 accu += (mp_twolimb_t) *sourceptr++ << s;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1019 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1020 accu = accu >> GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1021 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1022 if (accu > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1023 *destptr++ = (mp_limb_t) accu;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1024 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1025 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1026 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1027 const mp_limb_t *sourceptr = m.limbs;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1028 size_t count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1029 for (count = m.nlimbs; count > 0; count--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1030 destptr++ = sourceptr++;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1031 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1032 numerator.limbs = num_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1033 numerator.nlimbs = destptr - num_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1034 }
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1035 z_memory = divide (numerator, pow5, &z);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1036 free (num_ptr);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1037 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1038 }
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1039 free (pow5_ptr);
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1040 free (memory);
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1041
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1042 /* 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	1043
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1044 if (z_memory == NULL)
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1045 return NULL;
8838 db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1046 digits = convert_to_decimal (z, extra_zeroes);
db95bdbeb72c Optimize the case of huge precision. Bruno Haible <bruno@clisp.org> parents: 8837 diff changeset	1047 free (z_memory);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1048 return digits;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1049 }
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 /* Assuming x is finite and > 0:
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1052 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	1053 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	1054 static int
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1055 floorlog10l (long double x)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1056 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1057 int exp;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1058 long double y;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1059 double z;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1060 double l;
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 /* Split into exponential part and mantissa. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1063 y = frexpl (x, &exp);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1064 if (!(y >= 0.0L && y < 1.0L))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1065 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1066 if (y == 0.0L)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1067 return INT_MIN;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1068 if (y < 0.5L)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1069 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1070 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	1071 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1072 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	1073 exp -= GMP_LIMB_BITS;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1074 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1075 if (y < (1.0L / (1 << 16)))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1076 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1077 y = 1.0L (1 << 16);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1078 exp -= 16;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1079 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1080 if (y < (1.0L / (1 << 8)))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1081 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1082 y = 1.0L (1 << 8);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1083 exp -= 8;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1084 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1085 if (y < (1.0L / (1 << 4)))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1086 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1087 y = 1.0L (1 << 4);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1088 exp -= 4;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1089 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1090 if (y < (1.0L / (1 << 2)))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1091 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1092 y = 1.0L (1 << 2);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1093 exp -= 2;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1094 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1095 if (y < (1.0L / (1 << 1)))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1096 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1097 y = 1.0L (1 << 1);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1098 exp -= 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1099 }
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 if (!(y >= 0.5L && y < 1.0L))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1102 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1103 /* 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	1104 l = exp;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1105 z = y;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1106 if (z < 0.70710678118654752444)
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 z *= 1.4142135623730950488;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1109 l -= 0.5;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1110 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1111 if (z < 0.8408964152537145431)
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 z *= 1.1892071150027210667;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1114 l -= 0.25;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1115 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1116 if (z < 0.91700404320467123175)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1117 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1118 z *= 1.0905077326652576592;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1119 l -= 0.125;
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 if (z < 0.9576032806985736469)
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 z *= 1.0442737824274138403;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1124 l -= 0.0625;
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 /* Now 0.95 <= z <= 1.01. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1127 z = 1 - z;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1128 /* 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	1129 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	1130 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	1131 /* 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	1132 log10(x). */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1133 l *= 0.30102999566398119523;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1134 /* Round down to the next integer. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1135 return (int) l + (l < 0 ? -1 : 0);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1136 }
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 #endif
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1139
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1140 CHAR_T *
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1141 VASNPRINTF (CHAR_T resultbuf, size_t lengthp, const CHAR_T *format, va_list args)
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1142 {
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1143 DIRECTIVES d;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1144 arguments a;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1145
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1146 if (PRINTF_PARSE (format, &d, &a) < 0)
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1147 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1148 errno = EINVAL;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1149 return NULL;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1150 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1151
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1152 #define CLEANUP() \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1153 free (d.dir); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1154 if (a.arg) \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1155 free (a.arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1156
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1157 if (printf_fetchargs (args, &a) < 0)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1158 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1159 CLEANUP ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1160 errno = EINVAL;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1161 return NULL;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1162 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1163
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1164 {
4879 9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1165 size_t buf_neededlength;
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1166 CHAR_T *buf;
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1167 CHAR_T *buf_malloced;
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1168 const CHAR_T *cp;
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1169 size_t i;
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1170 DIRECTIVE *dp;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1171 /* Output string accumulator. */
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1172 CHAR_T *result;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1173 size_t allocated;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1174 size_t length;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1175
4879 9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1176 /* 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	1177 sprintf or snprintf. */
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1178 buf_neededlength =
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1179 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	1180 #if HAVE_ALLOCA
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1181 if (buf_neededlength < 4000 / sizeof (CHAR_T))
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1182 {
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1183 buf = (CHAR_T ) alloca (buf_neededlength sizeof (CHAR_T));
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1184 buf_malloced = NULL;
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1185 }
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1186 else
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1187 #endif
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1188 {
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1189 size_t buf_memsize = xtimes (buf_neededlength, sizeof (CHAR_T));
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1190 if (size_overflow_p (buf_memsize))
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1191 goto out_of_memory_1;
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1192 buf = (CHAR_T *) malloc (buf_memsize);
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1193 if (buf == NULL)
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1194 goto out_of_memory_1;
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1195 buf_malloced = buf;
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1196 }
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	1197
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1198 if (resultbuf != NULL)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1199 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1200 result = resultbuf;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1201 allocated = *lengthp;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1202 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1203 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1204 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1205 result = NULL;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1206 allocated = 0;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1207 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1208 length = 0;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1209 /* Invariants:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1210 result is either == resultbuf or == NULL or malloc-allocated.
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1211 If length > 0, then result != NULL. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1212
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1213 /* 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	1214 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	1215 #define ENSURE_ALLOCATION(needed) \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1216 if ((needed) > allocated) \
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1217 { \
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1218 size_t memory_size; \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1219 CHAR_T *memory; \
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1220 \
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1221 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	1222 if ((needed) > allocated) \
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1223 allocated = (needed); \
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1224 memory_size = xtimes (allocated, sizeof (CHAR_T)); \
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1225 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	1226 goto out_of_memory; \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1227 if (result == resultbuf \|\| result == NULL) \
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1228 memory = (CHAR_T *) malloc (memory_size); \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1229 else \
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1230 memory = (CHAR_T *) realloc (result, memory_size); \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1231 if (memory == NULL) \
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1232 goto out_of_memory; \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1233 if (result == resultbuf && length > 0) \
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1234 memcpy (memory, result, length * sizeof (CHAR_T)); \
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1235 result = memory; \
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1236 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1237
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1238 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	1239 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1240 if (cp != dp->dir_start)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1241 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1242 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	1243 size_t augmented_length = xsum (length, n);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1244
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1245 ENSURE_ALLOCATION (augmented_length);
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	1246 memcpy (result + length, cp, n * sizeof (CHAR_T));
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1247 length = augmented_length;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1248 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1249 if (i == d.count)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1250 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1251
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1252 /* Execute a single directive. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1253 if (dp->conversion == '%')
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1254 {
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1255 size_t augmented_length;
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1256
4886 e4317f1f2e2c Use size_t instead of ssize_t. Bruno Haible <bruno@clisp.org> parents: 4879 diff changeset	1257 if (!(dp->arg_index == ARG_NONE))
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1258 abort ();
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1259 augmented_length = xsum (length, 1);
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1260 ENSURE_ALLOCATION (augmented_length);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1261 result[length] = '%';
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	1262 length = augmented_length;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1263 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1264 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1265 {
4886 e4317f1f2e2c Use size_t instead of ssize_t. Bruno Haible <bruno@clisp.org> parents: 4879 diff changeset	1266 if (!(dp->arg_index != ARG_NONE))
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1267 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1268
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1269 if (dp->conversion == 'n')
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1270 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1271 switch (a.arg[dp->arg_index].type)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1272 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1273 case TYPE_COUNT_SCHAR_POINTER:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1274 *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	1275 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1276 case TYPE_COUNT_SHORT_POINTER:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1277 *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	1278 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1279 case TYPE_COUNT_INT_POINTER:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1280 *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	1281 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1282 case TYPE_COUNT_LONGINT_POINTER:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1283 *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	1284 break;
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	1285 #if HAVE_LONG_LONG_INT
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1286 case TYPE_COUNT_LONGLONGINT_POINTER:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1287 *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	1288 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1289 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1290 default:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1291 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1292 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	1293 }
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1294 #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	1295 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	1296 \|\| dp->conversion == 'e' \|\| dp->conversion == 'E'
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1297 \|\| dp->conversion == 'g' \|\| dp->conversion == 'G')
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1298 && (0
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1299 # 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	1300 \|\| (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	1301 /* 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	1302 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	1303 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	1304 && 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	1305 # endif
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1306 # 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	1307 \|\| 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	1308 # 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	1309 \|\| (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	1310 /* 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	1311 -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	1312 && 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	1313 # endif
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1314 ))
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1315 {
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1316 # 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	1317 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	1318 # endif
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1319 int flags = dp->flags;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1320 int has_width;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1321 size_t width;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1322 int has_precision;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1323 size_t precision;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1324 size_t tmp_length;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1325 CHAR_T tmpbuf[700];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1326 CHAR_T *tmp;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1327 CHAR_T *pad_ptr;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1328 CHAR_T *p;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1329
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1330 has_width = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1331 width = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1332 if (dp->width_start != dp->width_end)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1333 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1334 if (dp->width_arg_index != ARG_NONE)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1335 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1336 int arg;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1337
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1338 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	1339 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1340 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	1341 if (arg < 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1342 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1343 /* "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	1344 followed by a positive field width." */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1345 flags \|= FLAG_LEFT;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1346 width = (unsigned int) (-arg);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1347 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1348 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1349 width = arg;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1350 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1351 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1352 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1353 const CHAR_T *digitp = dp->width_start;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1354
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1355 do
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1356 width = xsum (xtimes (width, 10), *digitp++ - '0');
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1357 while (digitp != dp->width_end);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1358 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1359 has_width = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1360 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1361
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1362 has_precision = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1363 precision = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1364 if (dp->precision_start != dp->precision_end)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1365 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1366 if (dp->precision_arg_index != ARG_NONE)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1367 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1368 int arg;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1369
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1370 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	1371 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1372 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	1373 /* "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	1374 were omitted." */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1375 if (arg >= 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1376 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1377 precision = arg;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1378 has_precision = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1379 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1380 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1381 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1382 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1383 const CHAR_T *digitp = dp->precision_start + 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1384
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1385 precision = 0;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1386 while (digitp != dp->precision_end)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1387 precision = xsum (xtimes (precision, 10), *digitp++ - '0');
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1388 has_precision = 1;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1389 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1390 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1391
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1392 /* 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	1393 %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	1394 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	1395 if (!has_precision)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1396 precision = 6;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1397
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1398 /* 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	1399 # 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	1400 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	1401 # elif NEED_PRINTF_LONG_DOUBLE
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1402 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	1403 # else
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1404 tmp_length = 0;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1405 # endif
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1406 if (tmp_length < precision)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1407 tmp_length = precision;
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1408 # 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	1409 # 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	1410 if (type == TYPE_LONGDOUBLE)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1411 # endif
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1412 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	1413 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1414 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	1415 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	1416 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1417 /* 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	1418 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	1419 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	1420 tmp_length = exponent + precision;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1421 }
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1422 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1423 # endif
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1424 /* Account for sign, decimal point etc. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1425 tmp_length = xsum (tmp_length, 12);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1426
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1427 if (tmp_length < width)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1428 tmp_length = width;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1429
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1430 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	1431
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1432 if (tmp_length <= sizeof (tmpbuf) / sizeof (CHAR_T))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1433 tmp = tmpbuf;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1434 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1435 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1436 size_t tmp_memsize = xtimes (tmp_length, sizeof (CHAR_T));
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1437
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1438 if (size_overflow_p (tmp_memsize))
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1439 /* Overflow, would lead to out of memory. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1440 goto out_of_memory;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1441 tmp = (CHAR_T *) malloc (tmp_memsize);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1442 if (tmp == NULL)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1443 /* Out of memory. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1444 goto out_of_memory;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1445 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1446
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1447 pad_ptr = NULL;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1448 p = tmp;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1449
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1450 # 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	1451 # 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	1452 if (type == TYPE_LONGDOUBLE)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1453 # endif
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1454 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1455 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	1456
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1457 if (isnanl (arg))
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1458 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1459 if (dp->conversion >= 'A' && dp->conversion <= 'Z')
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1460 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1461 p++ = 'N'; p++ = 'A'; *p++ = 'N';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1462 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1463 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1464 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1465 p++ = 'n'; p++ = 'a'; *p++ = 'n';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1466 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1467 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1468 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1469 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1470 int sign = 0;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1471 DECL_LONG_DOUBLE_ROUNDING
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1472
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1473 BEGIN_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1474
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1475 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	1476 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1477 sign = -1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1478 arg = -arg;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1479 }
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1480
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1481 if (sign < 0)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1482 *p++ = '-';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1483 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	1484 *p++ = '+';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1485 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	1486 *p++ = ' ';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1487
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1488 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	1489 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1490 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	1491 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1492 p++ = 'I'; p++ = 'N'; *p++ = 'F';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1493 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1494 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1495 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1496 p++ = 'i'; p++ = 'n'; *p++ = 'f';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1497 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1498 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1499 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1500 {
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1501 # 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	1502 pad_ptr = p;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1503
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1504 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	1505 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1506 char *digits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1507 size_t ndigits;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1508
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1509 digits =
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1510 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	1511 if (digits == NULL)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1512 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1513 END_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1514 goto out_of_memory;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1515 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1516 ndigits = strlen (digits);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1517
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1518 if (ndigits > precision)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1519 do
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1520 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1521 --ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1522 *p++ = digits[ndigits];
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1523 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1524 while (ndigits > precision);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1525 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1526 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1527 /* Here ndigits <= precision. */
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1528 if ((flags & FLAG_ALT) \|\| precision > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1529 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1530 *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	1531 for (; precision > ndigits; precision--)
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1532 *p++ = '0';
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1533 while (ndigits > 0)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1534 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1535 --ndigits;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1536 *p++ = digits[ndigits];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1537 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1538 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1539
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1540 free (digits);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1541 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1542 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	1543 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1544 int exponent;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1545
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1546 if (arg == 0.0L)
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1547 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1548 exponent = 0;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1549 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1550 if ((flags & FLAG_ALT) \|\| precision > 0)
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1551 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1552 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1553 for (; precision > 0; precision--)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1554 *p++ = '0';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1555 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1556 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1557 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1558 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1559 /* arg > 0.0L. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1560 int adjusted;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1561 char *digits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1562 size_t ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1563
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1564 exponent = floorlog10l (arg);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1565 adjusted = 0;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1566 for (;;)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1567 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1568 digits =
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1569 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	1570 (int)precision - exponent);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1571 if (digits == NULL)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1572 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1573 END_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1574 goto out_of_memory;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1575 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1576 ndigits = strlen (digits);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1577
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1578 if (ndigits == precision + 1)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1579 break;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1580 if (ndigits < precision
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1581 \|\| ndigits > precision + 2)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1582 /* 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	1583 precisely enough. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1584 abort ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1585 if (adjusted)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1586 /* 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	1587 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	1588 loop. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1589 abort ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1590 free (digits);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1591 if (ndigits == precision)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1592 exponent -= 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1593 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1594 exponent += 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1595 adjusted = 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1596 }
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1597
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1598 /* Here ndigits = precision+1. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1599 *p++ = digits[--ndigits];
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1600 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	1601 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1602 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1603 while (ndigits > 0)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1604 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1605 --ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1606 *p++ = digits[ndigits];
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1607 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1608 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1609
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1610 free (digits);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1611 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1612
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1613 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	1614 # 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	1615 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1616 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	1617 { '%', '+', '.', '2', 'd', '\0' };
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1618 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	1619 }
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1620 # else
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1621 sprintf (p, "%+.2d", exponent);
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1622 # endif
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1623 while (*p != '\0')
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1624 p++;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1625 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1626 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	1627 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1628 if (precision == 0)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1629 precision = 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1630 /* precision >= 1. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1631
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1632 if (arg == 0.0L)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1633 /* 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	1634 Use fixed-point notation. */
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1635 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1636 size_t ndigits = precision;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1637 /* 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	1638 dropped. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1639 size_t nzeroes =
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1640 (flags & FLAG_ALT ? 0 : precision - 1);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1641
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1642 --ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1643 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1644 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	1645 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1646 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1647 while (ndigits > nzeroes)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1648 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1649 --ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1650 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1651 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1652 }
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1653 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1654 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1655 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1656 /* arg > 0.0L. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1657 int exponent;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1658 int adjusted;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1659 char *digits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1660 size_t ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1661 size_t nzeroes;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1662
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1663 exponent = floorlog10l (arg);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1664 adjusted = 0;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1665 for (;;)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1666 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1667 digits =
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1668 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	1669 (int)(precision - 1) - exponent);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1670 if (digits == NULL)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1671 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1672 END_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1673 goto out_of_memory;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1674 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1675 ndigits = strlen (digits);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1676
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1677 if (ndigits == precision)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1678 break;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1679 if (ndigits < precision - 1
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1680 \|\| ndigits > precision + 1)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1681 /* 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	1682 precisely enough. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1683 abort ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1684 if (adjusted)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1685 /* 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	1686 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	1687 loop. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1688 abort ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1689 free (digits);
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1690 if (ndigits < precision)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1691 exponent -= 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1692 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1693 exponent += 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1694 adjusted = 1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1695 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1696 /* Here ndigits = precision. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1697
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1698 /* 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	1699 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	1700 nzeroes = 0;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1701 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	1702 while (nzeroes < ndigits
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1703 && digits[nzeroes] == '0')
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1704 nzeroes++;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1705
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1706 /* 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	1707 if (exponent >= -4
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1708 && exponent < (long)precision)
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1709 {
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1710 /* Fixed-point notation:
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1711 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	1712 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	1713 digits without trailing zeroes. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1714 if (exponent >= 0)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1715 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1716 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	1717 /* Note: count <= precision = ndigits. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1718 for (; count > 0; count--)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1719 *p++ = digits[--ndigits];
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1720 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	1721 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1722 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1723 while (ndigits > nzeroes)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1724 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1725 --ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1726 *p++ = digits[ndigits];
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1727 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1728 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1729 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1730 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1731 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1732 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	1733 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1734 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1735 for (; count > 0; count--)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1736 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1737 while (ndigits > nzeroes)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1738 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1739 --ndigits;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1740 *p++ = digits[ndigits];
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1741 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1742 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1743 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1744 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1745 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1746 /* Exponential notation. */
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1747 *p++ = digits[--ndigits];
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1748 if ((flags & FLAG_ALT) \|\| ndigits > nzeroes)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1749 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1750 *p++ = decimal_point_char ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1751 while (ndigits > nzeroes)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1752 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1753 --ndigits;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1754 *p++ = digits[ndigits];
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1755 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1756 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1757 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	1758 # 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	1759 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1760 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	1761 { '%', '+', '.', '2', 'd', '\0' };
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1762 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	1763 }
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1764 # else
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1765 sprintf (p, "%+.2d", exponent);
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1766 # endif
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1767 while (*p != '\0')
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1768 p++;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1769 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1770
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1771 free (digits);
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1772 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1773 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1774 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1775 abort ();
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1776 # else
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1777 /* arg is finite. */
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1778 abort ();
771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1779 # endif
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1780 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1781
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1782 END_LONG_DOUBLE_ROUNDING ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1783 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1784 }
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1785 # 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	1786 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1787 # endif
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1788 # endif
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1789 # 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	1790 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1791 /* 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	1792 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	1793
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1794 if (isnan (arg))
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1795 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1796 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	1797 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1798 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	1799 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1800 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1801 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1802 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	1803 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1804 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1805 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1806 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1807 int sign = 0;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1808
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1809 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	1810 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1811 sign = -1;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1812 arg = -arg;
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1813 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1814
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1815 if (sign < 0)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1816 *p++ = '-';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1817 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	1818 *p++ = '+';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1819 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	1820 *p++ = ' ';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1821
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1822 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	1823 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1824 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	1825 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1826 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	1827 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1828 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1829 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1830 p++ = 'i'; p++ = 'n'; *p++ = 'f';
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1831 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1832 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1833 else
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1834 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1835 if (!(arg == 0.0))
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1836 abort ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1837
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1838 pad_ptr = p;
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1839
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1840 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	1841 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1842 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1843 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	1844 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1845 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1846 for (; precision > 0; precision--)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1847 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1848 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1849 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1850 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	1851 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1852 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1853 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	1854 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1855 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1856 for (; precision > 0; precision--)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1857 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1858 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1859 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	1860 *p++ = '+';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1861 /* 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	1862 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	1863 # 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	1864 *p++ = '0';
8860 771a56a41b5b Fix printf result for NaN, Inf on AIX, Solaris, OSF/1. Bruno Haible <bruno@clisp.org>* parents: 8846 diff changeset	1865 # endif
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1866 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1867 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1868 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1869 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	1870 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1871 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1872 if (flags & FLAG_ALT)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1873 {
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1874 size_t ndigits =
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1875 (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	1876 *p++ = decimal_point_char ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1877 for (; ndigits > 0; --ndigits)
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1878 *p++ = '0';
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1879 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1880 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1881 else
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1882 abort ();
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1883 }
792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1884 }
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1885 }
8840 792e05ae7ac8 Fix printf result for NaN, Inf, -0.0 on mingw. Bruno Haible <bruno@clisp.org>* parents: 8838 diff changeset	1886 # endif
8832 1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1887
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1888 /* 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	1889 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	1890 if (has_width && p - tmp < width)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1891 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1892 size_t pad = width - (p - tmp);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1893 CHAR_T *end = p + pad;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1894
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1895 if (flags & FLAG_LEFT)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1896 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1897 /* Pad with spaces on the right. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1898 for (; pad > 0; pad--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1899 *p++ = ' ';
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1900 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1901 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	1902 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1903 /* Pad with zeroes. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1904 CHAR_T *q = end;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1905
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1906 while (p > pad_ptr)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1907 --q = --p;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1908 for (; pad > 0; pad--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1909 *p++ = '0';
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1910 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1911 else
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1912 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1913 /* Pad with spaces on the left. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1914 CHAR_T *q = end;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1915
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1916 while (p > tmp)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1917 --q = --p;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1918 for (; pad > 0; pad--)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1919 *p++ = ' ';
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1920 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1921
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1922 p = end;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1923 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1924
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1925 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1926 size_t count = p - tmp;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1927
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1928 if (count >= tmp_length)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1929 /* tmp_length was incorrectly calculated - fix the
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1930 code above! */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1931 abort ();
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1932
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1933 /* Make room for the result. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1934 if (count >= allocated - length)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1935 {
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1936 size_t n = xsum (length, count);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1937
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1938 ENSURE_ALLOCATION (n);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1939 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1940
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1941 /* Append the result. */
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1942 memcpy (result + length, tmp, count * sizeof (CHAR_T));
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1943 if (tmp != tmpbuf)
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1944 free (tmp);
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1945 length += count;
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1946 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1947 }
1466c973f476 Add support for 'long double' number output. Bruno Haible <bruno@clisp.org> parents: 8831 diff changeset	1948 #endif
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1949 #if NEED_PRINTF_DIRECTIVE_A && !defined IN_LIBINTL
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1950 else if (dp->conversion == 'a' \|\| dp->conversion == 'A')
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1951 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1952 arg_type type = a.arg[dp->arg_index].type;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1953 int flags = dp->flags;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1954 int has_width;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1955 size_t width;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1956 int has_precision;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1957 size_t precision;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1958 size_t tmp_length;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1959 CHAR_T tmpbuf[700];
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1960 CHAR_T *tmp;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1961 CHAR_T *pad_ptr;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1962 CHAR_T *p;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1963
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1964 has_width = 0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1965 width = 0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1966 if (dp->width_start != dp->width_end)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1967 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1968 if (dp->width_arg_index != ARG_NONE)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1969 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1970 int arg;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1971
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1972 if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1973 abort ();
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1974 arg = a.arg[dp->width_arg_index].a.a_int;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1975 if (arg < 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1976 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1977 /* "A negative field width is taken as a '-' flag
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1978 followed by a positive field width." */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1979 flags \|= FLAG_LEFT;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1980 width = (unsigned int) (-arg);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1981 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1982 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1983 width = arg;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1984 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1985 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1986 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1987 const CHAR_T *digitp = dp->width_start;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1988
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1989 do
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1990 width = xsum (xtimes (width, 10), *digitp++ - '0');
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1991 while (digitp != dp->width_end);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1992 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1993 has_width = 1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1994 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1995
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1996 has_precision = 0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1997 precision = 0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1998 if (dp->precision_start != dp->precision_end)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	1999 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2000 if (dp->precision_arg_index != ARG_NONE)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2001 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2002 int arg;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2003
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2004 if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2005 abort ();
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2006 arg = a.arg[dp->precision_arg_index].a.a_int;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2007 /* "A negative precision is taken as if the precision
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2008 were omitted." */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2009 if (arg >= 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2010 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2011 precision = arg;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2012 has_precision = 1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2013 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2014 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2015 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2016 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2017 const CHAR_T *digitp = dp->precision_start + 1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2018
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2019 precision = 0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2020 while (digitp != dp->precision_end)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2021 precision = xsum (xtimes (precision, 10), *digitp++ - '0');
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2022 has_precision = 1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2023 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2024 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2025
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2026 /* Allocate a temporary buffer of sufficient size. */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2027 if (type == TYPE_LONGDOUBLE)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2028 tmp_length =
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2029 (unsigned int) ((LDBL_DIG + 1)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2030 * 0.831 /* decimal -> hexadecimal */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2031 )
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2032 + 1; /* turn floor into ceil */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2033 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2034 tmp_length =
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2035 (unsigned int) ((DBL_DIG + 1)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2036 * 0.831 /* decimal -> hexadecimal */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2037 )
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2038 + 1; /* turn floor into ceil */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2039 if (tmp_length < precision)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2040 tmp_length = precision;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2041 /* Account for sign, decimal point etc. */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2042 tmp_length = xsum (tmp_length, 12);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2043
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2044 if (tmp_length < width)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2045 tmp_length = width;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2046
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2047 tmp_length = xsum (tmp_length, 1); /* account for trailing NUL */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2048
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2049 if (tmp_length <= sizeof (tmpbuf) / sizeof (CHAR_T))
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2050 tmp = tmpbuf;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2051 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2052 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2053 size_t tmp_memsize = xtimes (tmp_length, sizeof (CHAR_T));
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2054
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2055 if (size_overflow_p (tmp_memsize))
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2056 /* Overflow, would lead to out of memory. */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2057 goto out_of_memory;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2058 tmp = (CHAR_T *) malloc (tmp_memsize);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2059 if (tmp == NULL)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2060 /* Out of memory. */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2061 goto out_of_memory;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2062 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2063
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2064 pad_ptr = NULL;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2065 p = tmp;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2066 if (type == TYPE_LONGDOUBLE)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2067 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2068 long double arg = a.arg[dp->arg_index].a.a_longdouble;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2069
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2070 if (isnanl (arg))
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2071 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2072 if (dp->conversion == 'A')
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2073 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2074 p++ = 'N'; p++ = 'A'; *p++ = 'N';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2075 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2076 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2077 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2078 p++ = 'n'; p++ = 'a'; *p++ = 'n';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2079 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2080 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2081 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2082 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2083 int sign = 0;
8531 52719799a90e New module 'fpucw'. Bruno Haible <bruno@clisp.org> parents: 8529 diff changeset	2084 DECL_LONG_DOUBLE_ROUNDING
52719799a90e New module 'fpucw'. Bruno Haible <bruno@clisp.org> parents: 8529 diff changeset	2085
52719799a90e New module 'fpucw'. Bruno Haible <bruno@clisp.org> parents: 8529 diff changeset	2086 BEGIN_LONG_DOUBLE_ROUNDING ();
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2087
8655 9a272158fe43 Faster determination of the sign of a number. Bruno Haible <bruno@clisp.org> parents: 8648 diff changeset	2088 if (signbit (arg)) /* arg < 0.0L or negative zero */
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2089 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2090 sign = -1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2091 arg = -arg;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2092 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2093
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2094 if (sign < 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2095 *p++ = '-';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2096 else if (flags & FLAG_SHOWSIGN)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2097 *p++ = '+';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2098 else if (flags & FLAG_SPACE)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2099 *p++ = ' ';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2100
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2101 if (arg > 0.0L && arg + arg == arg)
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2102 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2103 if (dp->conversion == 'A')
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2104 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2105 p++ = 'I'; p++ = 'N'; *p++ = 'F';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2106 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2107 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2108 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2109 p++ = 'i'; p++ = 'n'; *p++ = 'f';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2110 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2111 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2112 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2113 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2114 int exponent;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2115 long double mantissa;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2116
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2117 if (arg > 0.0L)
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2118 mantissa = printf_frexpl (arg, &exponent);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2119 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2120 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2121 exponent = 0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2122 mantissa = 0.0L;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2123 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2124
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2125 if (has_precision
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2126 && precision < (unsigned int) ((LDBL_DIG + 1) * 0.831) + 1)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2127 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2128 /* Round the mantissa. */
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2129 long double tail = mantissa;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2130 size_t q;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2131
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2132 for (q = precision; ; q--)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2133 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2134 int digit = (int) tail;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2135 tail -= digit;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2136 if (q == 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2137 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2138 if (digit & 1 ? tail >= 0.5L : tail > 0.5L)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2139 tail = 1 - tail;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2140 else
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2141 tail = - tail;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2142 break;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2143 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2144 tail *= 16.0L;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2145 }
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2146 if (tail != 0.0L)
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2147 for (q = precision; q > 0; q--)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2148 tail *= 0.0625L;
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2149 mantissa += tail;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2150 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2151
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2152 *p++ = '0';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2153 *p++ = dp->conversion - 'A' + 'X';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2154 pad_ptr = p;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2155 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2156 int digit;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2157
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2158 digit = (int) mantissa;
19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2159 mantissa -= digit;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2160 *p++ = '0' + digit;
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2161 if ((flags & FLAG_ALT)
19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2162 \|\| mantissa > 0.0L \|\| precision > 0)
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2163 {
8569 378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	2164 *p++ = decimal_point_char ();
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2165 /* This loop terminates because we assume
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2166 that FLT_RADIX is a power of 2. */
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2167 while (mantissa > 0.0L)
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2168 {
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2169 mantissa *= 16.0L;
19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2170 digit = (int) mantissa;
19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2171 mantissa -= digit;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2172 *p++ = digit
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2173 + (digit < 10
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2174 ? '0'
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2175 : dp->conversion - 10);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2176 if (precision > 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2177 precision--;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2178 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2179 while (precision > 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2180 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2181 *p++ = '0';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2182 precision--;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2183 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2184 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2185 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2186 *p++ = dp->conversion - 'A' + 'P';
8648 359d135f748c Assume 'long double' exists. Bruno Haible <bruno@clisp.org> parents: 8569 diff changeset	2187 # if WIDE_CHAR_VERSION
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2188 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2189 static const wchar_t decimal_format[] =
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2190 { '%', '+', 'd', '\0' };
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2191 SNPRINTF (p, 6 + 1, decimal_format, exponent);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2192 }
8648 359d135f748c Assume 'long double' exists. Bruno Haible <bruno@clisp.org> parents: 8569 diff changeset	2193 # else
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2194 sprintf (p, "%+d", exponent);
8648 359d135f748c Assume 'long double' exists. Bruno Haible <bruno@clisp.org> parents: 8569 diff changeset	2195 # endif
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2196 while (*p != '\0')
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2197 p++;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2198 }
8531 52719799a90e New module 'fpucw'. Bruno Haible <bruno@clisp.org> parents: 8529 diff changeset	2199
52719799a90e New module 'fpucw'. Bruno Haible <bruno@clisp.org> parents: 8529 diff changeset	2200 END_LONG_DOUBLE_ROUNDING ();
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2201 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2202 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2203 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2204 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2205 double arg = a.arg[dp->arg_index].a.a_double;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2206
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2207 if (isnan (arg))
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2208 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2209 if (dp->conversion == 'A')
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2210 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2211 p++ = 'N'; p++ = 'A'; *p++ = 'N';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2212 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2213 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2214 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2215 p++ = 'n'; p++ = 'a'; *p++ = 'n';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2216 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2217 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2218 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2219 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2220 int sign = 0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2221
8655 9a272158fe43 Faster determination of the sign of a number. Bruno Haible <bruno@clisp.org> parents: 8648 diff changeset	2222 if (signbit (arg)) /* arg < 0.0 or negative zero */
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2223 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2224 sign = -1;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2225 arg = -arg;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2226 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2227
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2228 if (sign < 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2229 *p++ = '-';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2230 else if (flags & FLAG_SHOWSIGN)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2231 *p++ = '+';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2232 else if (flags & FLAG_SPACE)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2233 *p++ = ' ';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2234
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2235 if (arg > 0.0 && arg + arg == arg)
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2236 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2237 if (dp->conversion == 'A')
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2238 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2239 p++ = 'I'; p++ = 'N'; *p++ = 'F';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2240 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2241 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2242 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2243 p++ = 'i'; p++ = 'n'; *p++ = 'f';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2244 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2245 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2246 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2247 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2248 int exponent;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2249 double mantissa;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2250
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2251 if (arg > 0.0)
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2252 mantissa = printf_frexp (arg, &exponent);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2253 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2254 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2255 exponent = 0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2256 mantissa = 0.0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2257 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2258
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2259 if (has_precision
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2260 && precision < (unsigned int) ((DBL_DIG + 1) * 0.831) + 1)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2261 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2262 /* Round the mantissa. */
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2263 double tail = mantissa;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2264 size_t q;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2265
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2266 for (q = precision; ; q--)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2267 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2268 int digit = (int) tail;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2269 tail -= digit;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2270 if (q == 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2271 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2272 if (digit & 1 ? tail >= 0.5 : tail > 0.5)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2273 tail = 1 - tail;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2274 else
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2275 tail = - tail;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2276 break;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2277 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2278 tail *= 16.0;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2279 }
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2280 if (tail != 0.0)
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2281 for (q = precision; q > 0; q--)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2282 tail *= 0.0625;
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2283 mantissa += tail;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2284 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2285
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2286 *p++ = '0';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2287 *p++ = dp->conversion - 'A' + 'X';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2288 pad_ptr = p;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2289 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2290 int digit;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2291
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2292 digit = (int) mantissa;
19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2293 mantissa -= digit;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2294 *p++ = '0' + digit;
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2295 if ((flags & FLAG_ALT)
19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2296 \|\| mantissa > 0.0 \|\| precision > 0)
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2297 {
8569 378e85482afa Use multithread-safe primitives for determining the decimal point character. Bruno Haible <bruno@clisp.org> parents: 8554 diff changeset	2298 *p++ = decimal_point_char ();
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2299 /* This loop terminates because we assume
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2300 that FLT_RADIX is a power of 2. */
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2301 while (mantissa > 0.0)
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2302 {
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2303 mantissa *= 16.0;
19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2304 digit = (int) mantissa;
19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2305 mantissa -= digit;
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2306 *p++ = digit
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2307 + (digit < 10
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2308 ? '0'
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2309 : dp->conversion - 10);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2310 if (precision > 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2311 precision--;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2312 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2313 while (precision > 0)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2314 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2315 *p++ = '0';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2316 precision--;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2317 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2318 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2319 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2320 *p++ = dp->conversion - 'A' + 'P';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2321 # if WIDE_CHAR_VERSION
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2322 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2323 static const wchar_t decimal_format[] =
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2324 { '%', '+', 'd', '\0' };
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2325 SNPRINTF (p, 6 + 1, decimal_format, exponent);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2326 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2327 # else
8343 19a934efd02c Oops, fix a couple of bugs in last commit. Bruno Haible <bruno@clisp.org> parents: 8335 diff changeset	2328 sprintf (p, "%+d", exponent);
8335 2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2329 # endif
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2330 while (*p != '\0')
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2331 p++;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2332 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2333 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2334 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2335 /* The generated string now extends from tmp to p, with the
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2336 zero padding insertion point being at pad_ptr. */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2337 if (has_width && p - tmp < width)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2338 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2339 size_t pad = width - (p - tmp);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2340 CHAR_T *end = p + pad;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2341
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2342 if (flags & FLAG_LEFT)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2343 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2344 /* Pad with spaces on the right. */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2345 for (; pad > 0; pad--)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2346 *p++ = ' ';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2347 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2348 else if ((flags & FLAG_ZERO) && pad_ptr != NULL)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2349 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2350 /* Pad with zeroes. */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2351 CHAR_T *q = end;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2352
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2353 while (p > pad_ptr)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2354 --q = --p;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2355 for (; pad > 0; pad--)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2356 *p++ = '0';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2357 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2358 else
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2359 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2360 /* Pad with spaces on the left. */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2361 CHAR_T *q = end;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2362
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2363 while (p > tmp)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2364 --q = --p;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2365 for (; pad > 0; pad--)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2366 *p++ = ' ';
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2367 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2368
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2369 p = end;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2370 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2371
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2372 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2373 size_t count = p - tmp;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2374
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2375 if (count >= tmp_length)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2376 /* tmp_length was incorrectly calculated - fix the
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2377 code above! */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2378 abort ();
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2379
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2380 /* Make room for the result. */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2381 if (count >= allocated - length)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2382 {
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2383 size_t n = xsum (length, count);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2384
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2385 ENSURE_ALLOCATION (n);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2386 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2387
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2388 /* Append the result. */
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2389 memcpy (result + length, tmp, count * sizeof (CHAR_T));
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2390 if (tmp != tmpbuf)
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2391 free (tmp);
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2392 length += count;
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2393 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2394 }
2c9de3b6ba5b New module 'vasnprintf-posix'. Bruno Haible <bruno@clisp.org> parents: 8254 diff changeset	2395 #endif
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2396 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2397 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2398 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	2399 int flags = dp->flags;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2400 #if !USE_SNPRINTF \|\| NEED_PRINTF_FLAG_ZERO
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2401 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	2402 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	2403 #endif
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2404 #if NEED_PRINTF_FLAG_ZERO
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2405 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	2406 #else
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2407 # 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	2408 #endif
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2409 CHAR_T *fbp;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2410 unsigned int prefix_count;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2411 int prefixes[2];
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	2412 #if !USE_SNPRINTF
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2413 size_t tmp_length;
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	2414 CHAR_T tmpbuf[700];
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	2415 CHAR_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	2416 #endif
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2417
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2418 #if !USE_SNPRINTF \|\| NEED_PRINTF_FLAG_ZERO
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2419 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	2420 width = 0;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2421 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	2422 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2423 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	2424 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2425 int arg;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2426
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2427 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	2428 abort ();
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2429 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	2430 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	2431 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2432 /* "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	2433 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	2434 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	2435 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	2436 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2437 else
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2438 width = arg;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2439 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2440 else
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2441 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2442 const CHAR_T *digitp = dp->width_start;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2443
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2444 do
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2445 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	2446 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	2447 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2448 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	2449 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2450 #endif
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2451
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2452 #if !USE_SNPRINTF
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2453 /* Allocate a temporary buffer of sufficient size for calling
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2454 sprintf. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2455 {
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2456 size_t precision;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2457
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2458 precision = 6;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2459 if (dp->precision_start != dp->precision_end)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2460 {
4886 e4317f1f2e2c Use size_t instead of ssize_t. Bruno Haible <bruno@clisp.org> parents: 4879 diff changeset	2461 if (dp->precision_arg_index != ARG_NONE)
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2462 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2463 int arg;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2464
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2465 if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2466 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2467 arg = a.arg[dp->precision_arg_index].a.a_int;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2468 precision = (arg < 0 ? 0 : arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2469 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2470 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2471 {
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	2472 const CHAR_T *digitp = dp->precision_start + 1;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2473
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2474 precision = 0;
5066 a2cb70e482fc Fix for format strings like "%2.f". Bruno Haible <bruno@clisp.org> parents: 4886 diff changeset	2475 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	2476 precision = xsum (xtimes (precision, 10), *digitp++ - '0');
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2477 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2478 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2479
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2480 switch (dp->conversion)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2481 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2482
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2483 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	2484 # if HAVE_LONG_LONG_INT
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2485 if (type == TYPE_LONGLONGINT \|\| type == TYPE_ULONGLONGINT)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2486 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2487 (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2488 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2489 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2490 + 1; /* turn floor into ceil */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2491 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2492 # endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2493 if (type == TYPE_LONGINT \|\| type == TYPE_ULONGINT)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2494 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2495 (unsigned int) (sizeof (unsigned long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2496 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2497 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2498 + 1; /* turn floor into ceil */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2499 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2500 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2501 (unsigned int) (sizeof (unsigned int) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2502 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2503 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2504 + 1; /* turn floor into ceil */
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2505 if (tmp_length < precision)
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2506 tmp_length = precision;
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2507 /* 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	2508 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	2509 /* 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	2510 tmp_length = xsum (tmp_length, 1);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2511 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2512
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2513 case 'o':
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	2514 # if HAVE_LONG_LONG_INT
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2515 if (type == TYPE_LONGLONGINT \|\| type == TYPE_ULONGLONGINT)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2516 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2517 (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2518 * 0.333334 /* binary -> octal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2519 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2520 + 1; /* turn floor into ceil */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2521 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2522 # endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2523 if (type == TYPE_LONGINT \|\| type == TYPE_ULONGINT)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2524 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2525 (unsigned int) (sizeof (unsigned long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2526 * 0.333334 /* binary -> octal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2527 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2528 + 1; /* turn floor into ceil */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2529 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2530 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2531 (unsigned int) (sizeof (unsigned int) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2532 * 0.333334 /* binary -> octal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2533 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2534 + 1; /* turn floor into ceil */
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2535 if (tmp_length < precision)
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2536 tmp_length = precision;
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2537 /* 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	2538 tmp_length = xsum (tmp_length, 1);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2539 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2540
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2541 case 'x': case 'X':
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	2542 # if HAVE_LONG_LONG_INT
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2543 if (type == TYPE_LONGLONGINT \|\| type == TYPE_ULONGLONGINT)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2544 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2545 (unsigned int) (sizeof (unsigned long long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2546 * 0.25 /* binary -> hexadecimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2547 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2548 + 1; /* turn floor into ceil */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2549 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2550 # endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2551 if (type == TYPE_LONGINT \|\| type == TYPE_ULONGINT)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2552 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2553 (unsigned int) (sizeof (unsigned long) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2554 * 0.25 /* binary -> hexadecimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2555 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2556 + 1; /* turn floor into ceil */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2557 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2558 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2559 (unsigned int) (sizeof (unsigned int) * CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2560 * 0.25 /* binary -> hexadecimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2561 )
6583 eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2562 + 1; /* turn floor into ceil */
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2563 if (tmp_length < precision)
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2564 tmp_length = precision;
eb8d54cb67a4 Fix an incorrect estimation of the sprintf result size. Bruno Haible <bruno@clisp.org> parents: 5848 diff changeset	2565 /* 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	2566 tmp_length = xsum (tmp_length, 2);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2567 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2568
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2569 case 'f': case 'F':
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2570 if (type == TYPE_LONGDOUBLE)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2571 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2572 (unsigned int) (LDBL_MAX_EXP
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2573 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2574 * 2 /* estimate for FLAG_GROUP */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2575 )
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2576 + 1 /* turn floor into ceil */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2577 + 10; /* sign, decimal point etc. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2578 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2579 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2580 (unsigned int) (DBL_MAX_EXP
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2581 * 0.30103 /* binary -> decimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2582 * 2 /* estimate for FLAG_GROUP */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2583 )
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2584 + 1 /* turn floor into ceil */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2585 + 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	2586 tmp_length = xsum (tmp_length, precision);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2587 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2588
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2589 case 'e': case 'E': case 'g': case 'G':
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2590 tmp_length =
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2591 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	2592 tmp_length = xsum (tmp_length, precision);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2593 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2594
8254 bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	2595 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	2596 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	2597 tmp_length =
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	2598 (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	2599 * 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	2600 )
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	2601 + 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	2602 else
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	2603 tmp_length =
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	2604 (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	2605 * 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	2606 )
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	2607 + 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	2608 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	2609 tmp_length = precision;
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	2610 /* 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	2611 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	2612 break;
bbea39ab5a58 Fix estimate of size needed for a 'a' or 'A' conversion. Bruno Haible <bruno@clisp.org> parents: 8051 diff changeset	2613
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2614 case 'c':
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	2615 # if HAVE_WINT_T && !WIDE_CHAR_VERSION
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2616 if (type == TYPE_WIDE_CHAR)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2617 tmp_length = MB_CUR_MAX;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2618 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2619 # endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2620 tmp_length = 1;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2621 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2622
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2623 case 's':
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	2624 # if HAVE_WCHAR_T
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2625 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	2626 {
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2627 tmp_length =
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2628 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	2629
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2630 # if !WIDE_CHAR_VERSION
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2631 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	2632 # endif
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2633 }
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2634 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2635 # endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2636 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	2637 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2638
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2639 case 'p':
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2640 tmp_length =
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2641 (unsigned int) (sizeof (void ) CHAR_BIT
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2642 * 0.25 /* binary -> hexadecimal */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2643 )
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2644 + 1 /* turn floor into ceil */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2645 + 2; /* account for leading 0x */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2646 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2647
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2648 default:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2649 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2650 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2651
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2652 if (tmp_length < width)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2653 tmp_length = width;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2654
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2655 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	2656 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2657
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	2658 if (tmp_length <= sizeof (tmpbuf) / sizeof (CHAR_T))
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2659 tmp = tmpbuf;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2660 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2661 {
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2662 size_t tmp_memsize = xtimes (tmp_length, sizeof (CHAR_T));
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2663
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2664 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	2665 /* 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	2666 goto out_of_memory;
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2667 tmp = (CHAR_T *) malloc (tmp_memsize);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2668 if (tmp == NULL)
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2669 /* Out of memory. */
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2670 goto out_of_memory;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2671 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2672 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2673
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2674 /* Decide whether to perform the padding ourselves. */
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2675 #if NEED_PRINTF_FLAG_ZERO
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2676 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	2677 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2678 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	2679 case 'a': case 'A':
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2680 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	2681 break;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2682 default:
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2683 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	2684 break;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2685 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2686 #endif
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2687
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2688 /* Construct the format string for calling snprintf or
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2689 sprintf. */
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2690 fbp = buf;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2691 *fbp++ = '%';
8803 6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8664 diff changeset	2692 #if NEED_PRINTF_FLAG_GROUPING
6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8664 diff changeset	2693 /* 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	2694 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	2695 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	2696 #else
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2697 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	2698 *fbp++ = '\'';
8803 6c1d98929550 Work around lack of support of grouping flag. Bruno Haible <bruno@clisp.org> parents: 8664 diff changeset	2699 #endif
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2700 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	2701 *fbp++ = '-';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2702 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	2703 *fbp++ = '+';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2704 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	2705 *fbp++ = ' ';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2706 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	2707 *fbp++ = '#';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2708 if (!pad_ourselves)
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2709 {
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2710 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	2711 *fbp++ = '0';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2712 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	2713 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2714 size_t n = dp->width_end - dp->width_start;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2715 memcpy (fbp, dp->width_start, n * sizeof (CHAR_T));
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2716 fbp += n;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2717 }
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2718 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2719 if (dp->precision_start != dp->precision_end)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2720 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2721 size_t n = dp->precision_end - dp->precision_start;
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2722 memcpy (fbp, dp->precision_start, n * sizeof (CHAR_T));
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2723 fbp += n;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2724 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2725
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2726 switch (type)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2727 {
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	2728 #if HAVE_LONG_LONG_INT
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2729 case TYPE_LONGLONGINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2730 case TYPE_ULONGLONGINT:
8830 abc2bcb16721 Support output of 64-bit numbers on mingw. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	2731 # 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	2732 *fbp++ = 'I';
abc2bcb16721 Support output of 64-bit numbers on mingw. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	2733 *fbp++ = '6';
abc2bcb16721 Support output of 64-bit numbers on mingw. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	2734 *fbp++ = '4';
abc2bcb16721 Support output of 64-bit numbers on mingw. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	2735 break;
abc2bcb16721 Support output of 64-bit numbers on mingw. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	2736 # else
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2737 *fbp++ = 'l';
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2738 /FALLTHROUGH/
8830 abc2bcb16721 Support output of 64-bit numbers on mingw. Bruno Haible <bruno@clisp.org> parents: 8804 diff changeset	2739 # endif
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2740 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2741 case TYPE_LONGINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2742 case TYPE_ULONGINT:
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	2743 #if HAVE_WINT_T
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2744 case TYPE_WIDE_CHAR:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2745 #endif
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	2746 #if HAVE_WCHAR_T
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2747 case TYPE_WIDE_STRING:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2748 #endif
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2749 *fbp++ = 'l';
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2750 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2751 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	2752 *fbp++ = 'L';
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2753 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2754 default:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2755 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2756 }
8664 40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	2757 #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	2758 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	2759 *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	2760 else
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	2761 #endif
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2762 *fbp = dp->conversion;
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	2763 #if USE_SNPRINTF
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2764 fbp[1] = '%';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2765 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	2766 fbp[3] = '\0';
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2767 #else
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2768 fbp[1] = '\0';
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2769 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2770
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2771 /* Construct the arguments for calling snprintf or sprintf. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2772 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	2773 if (!pad_ourselves && dp->width_arg_index != ARG_NONE)
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2774 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2775 if (!(a.arg[dp->width_arg_index].type == TYPE_INT))
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2776 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2777 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	2778 }
4886 e4317f1f2e2c Use size_t instead of ssize_t. Bruno Haible <bruno@clisp.org> parents: 4879 diff changeset	2779 if (dp->precision_arg_index != ARG_NONE)
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2780 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2781 if (!(a.arg[dp->precision_arg_index].type == TYPE_INT))
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2782 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2783 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	2784 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2785
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	2786 #if USE_SNPRINTF
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2787 /* Prepare checking whether snprintf returns the count
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2788 via %n. */
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2789 ENSURE_ALLOCATION (xsum (length, 1));
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2790 result[length] = '\0';
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2791 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2792
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2793 for (;;)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2794 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2795 size_t maxlen;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2796 int count;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2797 int retcount;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2798
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2799 maxlen = allocated - length;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2800 count = -1;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2801 retcount = 0;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2802
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	2803 #if USE_SNPRINTF
8468 336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	2804 /* SNPRINTF can fail if maxlen > INT_MAX. */
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	2805 if (maxlen > INT_MAX)
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	2806 goto overflow;
4704 b7a1b14802c8 Correct cpp indentation. Jim Meyering <jim@meyering.net> parents: 4589 diff changeset	2807 # define SNPRINTF_BUF(arg) \
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2808 switch (prefix_count) \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2809 { \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2810 case 0: \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	2811 retcount = SNPRINTF (result + length, maxlen, buf, \
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2812 arg, &count); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2813 break; \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2814 case 1: \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	2815 retcount = SNPRINTF (result + length, maxlen, buf, \
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2816 prefixes[0], arg, &count); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2817 break; \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2818 case 2: \
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	2819 retcount = SNPRINTF (result + length, maxlen, buf, \
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2820 prefixes[0], prefixes[1], arg, \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2821 &count); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2822 break; \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2823 default: \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2824 abort (); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2825 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2826 #else
4704 b7a1b14802c8 Correct cpp indentation. Jim Meyering <jim@meyering.net> parents: 4589 diff changeset	2827 # define SNPRINTF_BUF(arg) \
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2828 switch (prefix_count) \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2829 { \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2830 case 0: \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2831 count = sprintf (tmp, buf, arg); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2832 break; \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2833 case 1: \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2834 count = sprintf (tmp, buf, prefixes[0], arg); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2835 break; \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2836 case 2: \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2837 count = sprintf (tmp, buf, prefixes[0], prefixes[1],\
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2838 arg); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2839 break; \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2840 default: \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2841 abort (); \
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2842 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2843 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2844
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2845 switch (type)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2846 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2847 case TYPE_SCHAR:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2848 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2849 int arg = a.arg[dp->arg_index].a.a_schar;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2850 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2851 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2852 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2853 case TYPE_UCHAR:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2854 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2855 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	2856 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2857 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2858 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2859 case TYPE_SHORT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2860 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2861 int arg = a.arg[dp->arg_index].a.a_short;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2862 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2863 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2864 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2865 case TYPE_USHORT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2866 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2867 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	2868 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2869 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2870 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2871 case TYPE_INT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2872 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2873 int arg = a.arg[dp->arg_index].a.a_int;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2874 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2875 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2876 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2877 case TYPE_UINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2878 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2879 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	2880 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2881 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2882 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2883 case TYPE_LONGINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2884 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2885 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	2886 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2887 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2888 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2889 case TYPE_ULONGINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2890 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2891 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	2892 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2893 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2894 break;
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	2895 #if HAVE_LONG_LONG_INT
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2896 case TYPE_LONGLONGINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2897 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2898 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	2899 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2900 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2901 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2902 case TYPE_ULONGLONGINT:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2903 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2904 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	2905 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2906 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2907 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2908 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2909 case TYPE_DOUBLE:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2910 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2911 double arg = a.arg[dp->arg_index].a.a_double;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2912 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2913 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2914 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2915 case TYPE_LONGDOUBLE:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2916 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2917 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	2918 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2919 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2920 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2921 case TYPE_CHAR:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2922 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2923 int arg = a.arg[dp->arg_index].a.a_char;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2924 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2925 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2926 break;
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	2927 #if HAVE_WINT_T
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2928 case TYPE_WIDE_CHAR:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2929 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2930 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	2931 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2932 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2933 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2934 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2935 case TYPE_STRING:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2936 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2937 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	2938 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2939 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2940 break;
8051 9c2b0396b27c Stylistic change: Use '#if HAVE_' instead of '#ifdef HAVE_'. Bruno Haible <bruno@clisp.org> parents: 7475 diff changeset	2941 #if HAVE_WCHAR_T
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2942 case TYPE_WIDE_STRING:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2943 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2944 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	2945 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2946 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2947 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2948 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2949 case TYPE_POINTER:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2950 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2951 void *arg = a.arg[dp->arg_index].a.a_pointer;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2952 SNPRINTF_BUF (arg);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2953 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2954 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2955 default:
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2956 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2957 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2958
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	2959 #if USE_SNPRINTF
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2960 /* Portability: Not all implementations of snprintf()
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2961 are ISO C 99 compliant. Determine the number of
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2962 bytes that snprintf() has produced or would have
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2963 produced. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2964 if (count >= 0)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2965 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2966 /* Verify that snprintf() has NUL-terminated its
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2967 result. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2968 if (count < maxlen && result[length + count] != '\0')
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2969 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2970 /* Portability hack. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2971 if (retcount > count)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2972 count = retcount;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2973 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2974 else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2975 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2976 /* snprintf() doesn't understand the '%n'
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2977 directive. */
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	2978 if (fbp[1] != '\0')
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2979 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2980 /* Don't use the '%n' directive; instead, look
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2981 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	2982 fbp[1] = '\0';
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2983 continue;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	2984 }
4801 83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	2985 else
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	2986 {
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	2987 /* 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	2988 if (retcount < 0)
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	2989 {
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	2990 /* 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	2991 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	2992 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	2993 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	2994 buffer is too small. */
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2995 size_t bigger_need =
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	2996 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	2997 ENSURE_ALLOCATION (bigger_need);
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	2998 continue;
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	2999 }
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	3000 else
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	3001 count = retcount;
83746ec4d74a Portability to HP-UX 10, found by Jim Meyering. Bruno Haible <bruno@clisp.org> parents: 4704 diff changeset	3002 }
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3003 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3004 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3005
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3006 /* Attempt to handle failure. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3007 if (count < 0)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3008 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3009 if (!(result == resultbuf \|\| result == NULL))
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3010 free (result);
4879 9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3011 if (buf_malloced != NULL)
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3012 free (buf_malloced);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3013 CLEANUP ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3014 errno = EINVAL;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3015 return NULL;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3016 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3017
8837 6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3018 /* Make room for the result. */
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3019 if (count >= maxlen)
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3020 {
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3021 /* Need at least count bytes. But allocate
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3022 proportionally, to avoid looping eternally if
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3023 snprintf() reports a too small count. */
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3024 size_t n =
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3025 xmax (xsum (length, count), xtimes (allocated, 2));
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3026
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3027 ENSURE_ALLOCATION (n);
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3028 #if USE_SNPRINTF
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3029 continue;
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3030 #else
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3031 maxlen = allocated - length;
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3032 #endif
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3033 }
6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3034
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3035 /* Perform padding. */
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3036 #if NEED_PRINTF_FLAG_ZERO
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3037 if (pad_ourselves && has_width && count < width)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3038 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3039 # if USE_SNPRINTF
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3040 /* Make room for the result. */
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3041 if (width >= maxlen)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3042 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3043 /* Need at least width bytes. But allocate
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3044 proportionally, to avoid looping eternally if
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3045 snprintf() reports a too small count. */
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3046 size_t n =
8837 6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3047 xmax (xsum (length + 1, width),
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3048 xtimes (allocated, 2));
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3049
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3050 length += count;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3051 ENSURE_ALLOCATION (n);
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3052 length -= count;
8837 6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3053 maxlen = allocated - length; /* > width */
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3054 }
8837 6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3055 /* Here width < maxlen. */
8804 6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3056 # endif
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3057 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3058 # if USE_SNPRINTF
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3059 CHAR_T * const rp = result + length;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3060 # else
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3061 CHAR_T * const rp = tmp;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3062 # endif
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3063 CHAR_T *p = rp + count;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3064 size_t pad = width - count;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3065 CHAR_T *end = p + pad;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3066 CHAR_T pad_ptr = (rp == '-' ? rp + 1 : rp);
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3067 /* No zero-padding of "inf" and "nan". */
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3068 if ((pad_ptr >= 'A' && pad_ptr <= 'Z')
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3069 \|\| (pad_ptr >= 'a' && pad_ptr <= 'z'))
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3070 pad_ptr = NULL;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3071 /* The generated string now extends from rp to p,
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3072 with the zero padding insertion point being at
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3073 pad_ptr. */
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3074
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3075 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	3076 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3077 /* Pad with spaces on the right. */
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3078 for (; pad > 0; pad--)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3079 *p++ = ' ';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3080 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3081 else if ((flags & FLAG_ZERO) && pad_ptr != NULL)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3082 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3083 /* Pad with zeroes. */
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3084 CHAR_T *q = end;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3085
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3086 while (p > pad_ptr)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3087 --q = --p;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3088 for (; pad > 0; pad--)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3089 *p++ = '0';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3090 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3091 else
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3092 {
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3093 /* Pad with spaces on the left. */
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3094 CHAR_T *q = end;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3095
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3096 while (p > rp)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3097 --q = --p;
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3098 for (; pad > 0; pad--)
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3099 *p++ = ' ';
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3100 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3101
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3102 count = width; /* = count + pad = end - rp */
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3103 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3104 }
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3105 #endif
6ce313658b4d Work around an incorrect implementation of the 0 flag on most platforms. Bruno Haible <bruno@clisp.org> parents: 8803 diff changeset	3106
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3107 #if !USE_SNPRINTF
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3108 if (count >= tmp_length)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3109 /* tmp_length was incorrectly calculated - fix the
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3110 code above! */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3111 abort ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3112 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3113
8837 6d6277df29a9 Fix logic bug introduced on 2007-05-06. Bruno Haible <bruno@clisp.org> parents: 8835 diff changeset	3114 /* Here still count < maxlen. */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3115
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3116 #if USE_SNPRINTF
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3117 /* The snprintf() result did fit. */
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3118 #else
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3119 /* Append the sprintf() result. */
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3120 memcpy (result + length, tmp, count * sizeof (CHAR_T));
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3121 if (tmp != tmpbuf)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3122 free (tmp);
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3123 #endif
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3124
8664 40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	3125 #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	3126 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	3127 {
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	3128 /* Convert the %f result to upper case for %F. */
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	3129 CHAR_T *rp = result + length;
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	3130 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	3131 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	3132 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	3133 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	3134 }
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	3135 #endif
40c507f55b0f Implement the %F directive if the system doesn't implement it correctly. Bruno Haible <bruno@clisp.org> parents: 8655 diff changeset	3136
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3137 length += count;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3138 break;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3139 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3140 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3141 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3142 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3143
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3144 /* Add the final NUL. */
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3145 ENSURE_ALLOCATION (xsum (length, 1));
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3146 result[length] = '\0';
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 if (result != resultbuf && length + 1 < allocated)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3149 {
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3150 /* Shrink the allocated memory if possible. */
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3151 CHAR_T *memory;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3152
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3153 memory = (CHAR_T ) realloc (result, (length + 1) sizeof (CHAR_T));
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3154 if (memory != NULL)
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3155 result = memory;
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3156 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3157
4879 9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3158 if (buf_malloced != NULL)
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3159 free (buf_malloced);
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3160 CLEANUP ();
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3161 *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	3162 /* 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	3163 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	3164 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	3165 not have this limitation. */
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3166 return result;
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3167
8468 336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3168 overflow:
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3169 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	3170 free (result);
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3171 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	3172 free (buf_malloced);
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3173 CLEANUP ();
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3174 errno = EOVERFLOW;
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3175 return NULL;
336e69863755 Fix endless loop when the given allocated size was > INT_MAX. Bruno Haible <bruno@clisp.org> parents: 8465 diff changeset	3176
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3177 out_of_memory:
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3178 if (!(result == resultbuf \|\| result == NULL))
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3179 free (result);
4879 9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3180 if (buf_malloced != NULL)
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3181 free (buf_malloced);
9b96adbed643 Avoid alloca with too large size. Bruno Haible <bruno@clisp.org> parents: 4872 diff changeset	3182 out_of_memory_1:
4872 c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3183 CLEANUP ();
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3184 errno = ENOMEM;
c5afc99b8ce5 Use xsize.h to protect against memory size overflows. Bruno Haible <bruno@clisp.org> parents: 4871 diff changeset	3185 return NULL;
4224 83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3186 }
83eabea25586 New modules vasnprintf and vasprintf. Bruno Haible <bruno@clisp.org> parents: diff changeset	3187 }
4871 87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3188
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3189 #undef SNPRINTF
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3190 #undef USE_SNPRINTF
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3191 #undef PRINTF_PARSE
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3192 #undef DIRECTIVES
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3193 #undef DIRECTIVE
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3194 #undef CHAR_T
87df35000dab Merge support for wide characters, from GNU gettext. Bruno Haible <bruno@clisp.org> parents: 4801 diff changeset	3195 #undef VASNPRINTF

Mercurial > hg > octave-lojdl > gnulib-hg

annotate lib/vasnprintf.c @ 8915:f15c03805bd9