wcsmbs/wcschr.c

   1 /* Copyright (C) 1995-2014 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   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.
   8
   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.
  13
  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/>.  */
  17
  18 #include <wchar.h>
  19
  20 /* Find the first occurrence of WC in WCS.  */
  21 #ifdef WCSCHR
  22 # define wcschr WCSCHR
  23 #else
  24 # define wcschr __wcschr
  25 #endif
  26
  27 wchar_t *
  28 wcschr (wcs, wc)
  29      const wchar_t *wcs;
  30      const wchar_t wc;
  31 {
  32   do
  33     if (*wcs == wc)
  34       return (wchar_t *) wcs;
  35   while (*wcs++ != L'\0');
  36
  37   return NULL;
  38 }
  39 libc_hidden_def (wcschr)
  40 #ifndef WCSCHR
  41 # undef wcschr
  42 weak_alias (__wcschr, wcschr)
  43 libc_hidden_weak (wcschr)
  44 #endif