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/* Scan memory for the first of two bytes. 
   Copyright (C) 2008-2013 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