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_memcpy 27 28 NoN(memcpy) 29 30 #else 31 32 #undef memcpy 33 34 #if _lib_bcopy 35 36 extern void bcopy(void*, void*, size_t); 37 38 void* 39 memcpy(void* s1, void* s2, size_t n) 40 { 41 bcopy(s2, s1, n); 42 return(s1); 43 } 44 45 #else 46 47 void* 48 memcpy(void* as1, const void* as2, register size_t n) 49 { 50 register char* s1 = (char*)as1; 51 register const char* s2 = (const char*)as2; 52 53 while (n-- > 0) 54 *s1++ = *s2++; 55 return(as1); 56 } 57 58 #endif 59 60 #endif 61