1/*********************************************************************** 2* * 3* This software is part of the ast package * 4* Copyright (c) 1985-2010 AT&T Intellectual Property * 5* and is licensed under the * 6* Common Public License, Version 1.0 * 7* by AT&T Intellectual Property * 8* * 9* A copy of the License is available at * 10* http://www.opensource.org/licenses/cpl1.0.txt * 11* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * 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_memccpy && !_UWIN 27 28NoN(memccpy) 29 30#else 31 32/* 33 * Copy s2 to s1, stopping if character c is copied. Copy no more than n bytes. 34 * Return a pointer to the byte after character c in the copy, 35 * or 0 if c is not found in the first n bytes. 36 */ 37 38void* 39memccpy(void* as1, const void* as2, register int c, size_t n) 40{ 41 register char* s1 = (char*)as1; 42 register const char* s2 = (char*)as2; 43 register const char* ep = s2 + n; 44 45 while (s2 < ep) 46 if ((*s1++ = *s2++) == c) 47 return(s1); 48 return(0); 49} 50 51#endif 52