mirror of
https://git.zap.org.au/git/trader.git
synced 2024-11-03 17:27:29 -05:00
c0ca9b04da
These files have been created by running ./build-aux/bootstrap with Gnulib as at commit b1268f22f443e8e4b9e85ddf4e024875a2cd2030 (with a date stamp of Sun Jan 10 23:06:39 2021 +0100), Autoconf 2.69, Automake 1.16.3, Gettext 0.21 and pkg-config 0.29.2.
57 lines
1.5 KiB
C
57 lines
1.5 KiB
C
/* c-strcasecmp.c -- case insensitive string comparator in C locale
|
|
Copyright (C) 1998-1999, 2005-2006, 2009-2021 Free Software Foundation, Inc.
|
|
|
|
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, 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 "c-strcase.h"
|
|
|
|
#include <limits.h>
|
|
|
|
#include "c-ctype.h"
|
|
|
|
int
|
|
c_strcasecmp (const char *s1, const char *s2)
|
|
{
|
|
register const unsigned char *p1 = (const unsigned char *) s1;
|
|
register const unsigned char *p2 = (const unsigned char *) s2;
|
|
unsigned char c1, c2;
|
|
|
|
if (p1 == p2)
|
|
return 0;
|
|
|
|
do
|
|
{
|
|
c1 = c_tolower (*p1);
|
|
c2 = c_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 _GL_CMP (c1, c2);
|
|
}
|