1/*********************************************************************** 2* * 3* This software is part of the ast package * 4* Copyright (c) 1985-2011 AT&T Intellectual Property * 5* and is licensed under the * 6* Eclipse Public License, Version 1.0 * 7* by AT&T Intellectual Property * 8* * 9* A copy of the License is available at * 10* http://www.eclipse.org/org/documents/epl-v10.html * 11* (with md5 checksum b35adb5213ca9657e911e9befb180842) * 12* * 13* Information and Software Systems Research * 14* AT&T Research * 15* Florham Park NJ * 16* * 17* Glenn Fowler <gsf@research.att.com> * 18* David Korn <dgk@research.att.com> * 19* Phong Vo <kpv@research.att.com> * 20* * 21***********************************************************************/ 22#pragma prototyped 23 24#include <ast.h> 25 26#if _lib_memchr 27 28NoN(memchr) 29 30#else 31 32/* 33 * Return the ptr in sp at which the character c appears; 34 * 0 if not found in n chars; don't stop at \0. 35 */ 36 37void* 38memchr(const void* asp, register int c, size_t n) 39{ 40 register const char* sp = (char*)asp; 41 register const char* ep = sp + n; 42 43 while (sp < ep) 44 if (*sp++ == c) 45 return(--sp); 46 return(0); 47} 48 49#endif 50