Mercurial > gnulib
view lib/mbscasecmp.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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/* Case-insensitive string comparison function. Copyright (C) 1998-1999, 2005-2019 Free Software Foundation, Inc. Written by Bruno Haible <bruno@clisp.org>, 2005, based on earlier glibc code. 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 3 of the License, 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/>. */ #include <config.h> /* Specification. */ #include <string.h> #include <ctype.h> #include <limits.h> #include "mbuiter.h" #define TOLOWER(Ch) (isupper (Ch) ? tolower (Ch) : (Ch)) /* Compare the character strings S1 and S2, ignoring case, returning less than, equal to or greater than zero if S1 is lexicographically less than, equal to or greater than S2. Note: This function may, in multibyte locales, return 0 for strings of different lengths! */ int mbscasecmp (const char *s1, const char *s2) { if (s1 == s2) return 0; /* Be careful not to look at the entire extent of s1 or s2 until needed. This is useful because when two strings differ, the difference is most often already in the very few first characters. */ if (MB_CUR_MAX > 1) { mbui_iterator_t iter1; mbui_iterator_t iter2; mbui_init (iter1, s1); mbui_init (iter2, s2); while (mbui_avail (iter1) && mbui_avail (iter2)) { int cmp = mb_casecmp (mbui_cur (iter1), mbui_cur (iter2)); if (cmp != 0) return cmp; mbui_advance (iter1); mbui_advance (iter2); } if (mbui_avail (iter1)) /* s2 terminated before s1. */ return 1; if (mbui_avail (iter2)) /* s1 terminated before s2. */ return -1; return 0; } else { const unsigned char *p1 = (const unsigned char *) s1; const unsigned char *p2 = (const unsigned char *) s2; unsigned char c1, c2; do { c1 = TOLOWER (*p1); c2 = TOLOWER (*p2); if (c1 == '\0') break; ++p1; ++p2; } while (c1 == c2); if (UCHAR_MAX <= INT_MAX) return c1 - c2; else /* On machines where 'char' and 'int' are types of the same size, the difference of two 'unsigned char' values - including the sign bit - doesn't fit in an 'int'. */ return (c1 > c2 ? 1 : c1 < c2 ? -1 : 0); } }