Add a minor 'cas' atomic optimization on sparc.
[glibc.git] / wcsmbs / wcschr.c
blob3b5b63d82fbcbedd27bccb50251a9b7c0d13644b
1 /* Copyright (C) 1995-2013 Free Software Foundation, Inc.
2 This file is part of the GNU C Library.
4 The GNU C Library is free software; you can redistribute it and/or
5 modify it under the terms of the GNU Lesser General Public
6 License as published by the Free Software Foundation; either
7 version 2.1 of the License, or (at your option) any later version.
9 The GNU C Library is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 Lesser General Public License for more details.
14 You should have received a copy of the GNU Lesser General Public
15 License along with the GNU C Library; if not, see
16 <http://www.gnu.org/licenses/>. */
18 #include <wchar.h>
20 /* Find the first occurrence of WC in WCS. */
21 #ifdef WCSCHR
22 # define wcschr WCSCHR
23 #endif
25 wchar_t *
26 wcschr (wcs, wc)
27 register const wchar_t *wcs;
28 register const wchar_t wc;
31 if (*wcs == wc)
32 return (wchar_t *) wcs;
33 while (*wcs++ != L'\0');
35 return NULL;
37 libc_hidden_def (wcschr)