mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-05 03:01:05 +00:00
90 lines
2.1 KiB
C
90 lines
2.1 KiB
C
/* wcsrchr.c - Wide Character Reverse Search for POWER6+.
|
|
Copyright (C) 2012-2017 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 WCSRCHR
|
|
# define WCSRCHR wcsrchr
|
|
#endif
|
|
|
|
/* Find the last occurrence of WC in WCS. */
|
|
wchar_t *
|
|
WCSRCHR (const wchar_t *wcs, const wchar_t wc)
|
|
{
|
|
const wchar_t *wcs2 = wcs + 1;
|
|
const wchar_t *retval = NULL;
|
|
|
|
if (*wcs == wc)
|
|
retval = wcs;
|
|
|
|
if (*wcs == L'\0') return (wchar_t *) retval;
|
|
|
|
do
|
|
{
|
|
wcs+=2;
|
|
|
|
if (*wcs2 == wc)
|
|
retval = wcs2;
|
|
if (*wcs2 == L'\0')
|
|
return (wchar_t *) retval;
|
|
wcs2+=2;
|
|
|
|
if (*wcs == wc)
|
|
retval = wcs;
|
|
if (*wcs == L'\0')
|
|
return (wchar_t *) retval;
|
|
wcs+=2;
|
|
|
|
if (*wcs2 == wc)
|
|
retval = wcs2;
|
|
if (*wcs2 == L'\0')
|
|
return (wchar_t *) retval;
|
|
wcs2+=2;
|
|
|
|
if (*wcs == wc)
|
|
retval = wcs;
|
|
if (*wcs == L'\0')
|
|
return (wchar_t *) retval;
|
|
wcs+=2;
|
|
|
|
if (*wcs2 == wc)
|
|
retval = wcs2;
|
|
if (*wcs2 == L'\0')
|
|
return (wchar_t *) retval;
|
|
wcs2+=2;
|
|
|
|
if (*wcs == wc)
|
|
retval = wcs;
|
|
if (*wcs == L'\0')
|
|
return (wchar_t *) retval;
|
|
wcs+=2;
|
|
|
|
if (*wcs2 == wc)
|
|
retval = wcs2;
|
|
if (*wcs2 == L'\0')
|
|
return (wchar_t *) retval;
|
|
wcs2+=2;
|
|
|
|
if (*wcs == wc)
|
|
retval = wcs;
|
|
}
|
|
while (*wcs != L'\0');
|
|
|
|
return (wchar_t *) retval;
|
|
}
|