Mercurial > gnulib
view lib/c-vsnprintf.c @ 40172:31ab89a208b9
strtod, strtold: Use the locale's decimal point.
* lib/strtod.c: Include <locale.h>, <stdio.h>, <langinfo.h>.
(decimal_point_char): New function, copied from lib/vasnprintf.c.
(parse_number): Add a radixchar argument. Use it instead of '.'.
(STRTOD): Invoke decimal_point_char and pass the result to parse_number.
* m4/strtod.m4 (gl_PREREQ_STRTOD): Test whether nl_langinfo exists.
* m4/strtold.m4 (gl_PREREQ_STRTOLD): Likewise.
* tests/test-strtod1.c: New file.
* tests/test-strtod1.sh: New file.
* modules/strtod-tests (Files): Add test-strtod1.{sh,c}. Add
locale-fr.m4 and its dependencies.
(configure.ac): Invoke gt_LOCALE_FR, gt_LOCALE_FR_UTF8.
(Makefile.am): Arrange to compile test-strtod1.c and run
test-strtod1.sh.
* tests/test-strtold1.c: New file.
* tests/test-strtold1.sh: New file.
* modules/strtold-tests (Files): Add test-strtold1.{sh,c}. Add
locale-fr.m4 and its dependencies.
(configure.ac): Invoke gt_LOCALE_FR, gt_LOCALE_FR_UTF8.
(Makefile.am): Arrange to compile test-strtold1.c and run
test-strtold1.sh.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Fri, 01 Feb 2019 03:12:28 +0100 |
parents | b06060465f09 |
children |
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/* Formatted output to strings in C locale. Copyright (C) 2004, 2006-2019 Free Software Foundation, Inc. Written by Simon Josefsson and Yoann Vandoorselaere <yoann@prelude-ids.org>. Modified for C locale by Ben Pfaff. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, see <https://www.gnu.org/licenses/>. */ #ifdef HAVE_CONFIG_H # include <config.h> #endif /* Specification. */ #include <stdio.h> #include <errno.h> #include <limits.h> #include <stdarg.h> #include <stdlib.h> #include <string.h> #include "c-vasnprintf.h" /* Print formatted output to string STR. Similar to vsprintf, but additional length SIZE limit how much is written into STR. Returns string length of formatted string (which may be larger than SIZE). STR may be NULL, in which case nothing will be written. On error, return a negative value. Formatting takes place in the C locale, that is, the decimal point used in floating-point formatting directives is always '.'. */ int c_vsnprintf (char *str, size_t size, const char *format, va_list args) { char *output; size_t len; size_t lenbuf = size; output = c_vasnprintf (str, &lenbuf, format, args); len = lenbuf; if (!output) return -1; if (output != str) { if (size) { size_t pruned_len = (len < size ? len : size - 1); memcpy (str, output, pruned_len); str[pruned_len] = '\0'; } free (output); } if (len > INT_MAX) { errno = EOVERFLOW; return -1; } return len; }