mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 21:20:18 +00:00
97 lines
2.2 KiB
C
97 lines
2.2 KiB
C
/* wcschr.c - Wide Character Search for POWER6+.
|
|
Copyright (C) 2012-2015 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; see the file COPYING.LIB. If
|
|
not, see <http://www.gnu.org/licenses/>. */
|
|
|
|
#include <wchar.h>
|
|
|
|
#ifndef WCSCHR
|
|
# define WCSCHR __wcschr
|
|
# define DEFAULT_WCSCHR
|
|
#endif
|
|
|
|
/* Find the first occurrence of WC in WCS. */
|
|
wchar_t *
|
|
WCSCHR (const wchar_t *wcs, const wchar_t wc)
|
|
{
|
|
const wchar_t *wcs2 = wcs + 1;
|
|
|
|
if (*wcs == wc)
|
|
return (wchar_t *) wcs;
|
|
if (*wcs == L'\0')
|
|
return NULL;
|
|
|
|
do
|
|
{
|
|
wcs += 2;
|
|
|
|
if (*wcs2 == wc)
|
|
return (wchar_t *) wcs2;
|
|
if (*wcs2 == L'\0')
|
|
return NULL;
|
|
wcs2 += 2;
|
|
|
|
if (*wcs == wc)
|
|
return (wchar_t *) wcs;
|
|
if (*wcs == L'\0')
|
|
return NULL;
|
|
wcs += 2;
|
|
|
|
if (*wcs2 == wc)
|
|
return (wchar_t *) wcs2;
|
|
if (*wcs2 == L'\0')
|
|
return NULL;
|
|
wcs2 += 2;
|
|
|
|
if (*wcs == wc)
|
|
return (wchar_t *) wcs;
|
|
if (*wcs == L'\0')
|
|
return NULL;
|
|
wcs += 2;
|
|
|
|
if (*wcs2 == wc)
|
|
return (wchar_t *) wcs2;
|
|
if (*wcs2 == L'\0')
|
|
return NULL;
|
|
wcs2 += 2;
|
|
|
|
if (*wcs == wc)
|
|
return (wchar_t *) wcs;
|
|
if (*wcs == L'\0')
|
|
return NULL;
|
|
wcs += 2;
|
|
|
|
if (*wcs2 == wc)
|
|
return (wchar_t *) wcs2;
|
|
if (*wcs2 == L'\0')
|
|
return NULL;
|
|
wcs2 += 2;
|
|
|
|
if (*wcs == wc)
|
|
return (wchar_t *) wcs;
|
|
}
|
|
while (*wcs != L'\0');
|
|
|
|
return NULL;
|
|
}
|
|
#ifdef DEFAULT_WCSCHR
|
|
libc_hidden_def (__wcschr)
|
|
weak_alias (__wcschr, wcschr)
|
|
libc_hidden_weak (wcschr)
|
|
#else
|
|
libc_hidden_def (wcschr)
|
|
#endif
|