glibc/wcsmbs/wcschr.c

/* Copyright (C) 1995-2015 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/>.  */

#include <wchar.h>

/* Find the first occurrence of WC in WCS.  */
#ifdef WCSCHR
# define wcschr WCSCHR
#else
# define wcschr __wcschr
#endif

wchar_t *
wcschr (wcs, wc)
     const wchar_t *wcs;
     const wchar_t wc;
{
  do
    if (*wcs == wc)
      return (wchar_t *) wcs;
  while (*wcs++ != L'\0');

  return NULL;
}
libc_hidden_def (wcschr)
#ifndef WCSCHR
# undef wcschr
weak_alias (__wcschr, wcschr)
libc_hidden_weak (wcschr)
#endif