/* Scan memory for the first of two bytes.

   Copyright (C) 2008-2017 Free Software Foundation, Inc.

   This program is free software: you can redistribute it and/or modify

   it under the terms of the GNU General Public License as published by

   the Free Software Foundation; either version 3 of the License, or

   (at your option) any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License

   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */

#include <stddef.h>

#ifdef __cplusplus

extern "C" {

#endif

/* Return the first address of either C1 or C2 (treated as unsigned

   char) that occurs within N bytes of the memory region S.  If

   neither byte appears, return NULL.  */

extern void *memchr2 (void const *s, int c1, int c2, size_t n)

  _GL_ATTRIBUTE_PURE;

#ifdef __cplusplus

}

#endif