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/* Copyright (C) 1991-2015 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library 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
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#ifdef HAVE_CONFIG_H
# include <config.h>
#endif
#include <wctype.h>
#include <wchar.h>
#ifndef weak_alias
# define __wcscasecmp wcscasecmp
# define TOLOWER(Ch) towlower (Ch)
#else
# ifdef USE_IN_EXTENDED_LOCALE_MODEL
# define __wcscasecmp __wcscasecmp_l
# define TOLOWER(Ch) __towlower_l ((Ch), loc)
# else
# define TOLOWER(Ch) towlower (Ch)
# endif
#endif
#ifdef USE_IN_EXTENDED_LOCALE_MODEL
# define LOCALE_PARAM , __locale_t loc
#else
# define LOCALE_PARAM
#endif
/* Compare 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. */
int
__wcscasecmp (const wchar_t *s1, const wchar_t *s2 LOCALE_PARAM)
{
wint_t c1, c2;
if (s1 == s2)
return 0;
do
{
c1 = TOLOWER (*s1++);
c2 = TOLOWER (*s2++);
if (c1 == L'\0')
break;
}
while (c1 == c2);
return c1 - c2;
}
#ifndef __wcscasecmp
weak_alias (__wcscasecmp, wcscasecmp)
#endif
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