diff options
Diffstat (limited to 'usr/src/lib/libast/common/comp/memcpy.c')
| -rw-r--r-- | usr/src/lib/libast/common/comp/memcpy.c | 60 |
1 files changed, 60 insertions, 0 deletions
diff --git a/usr/src/lib/libast/common/comp/memcpy.c b/usr/src/lib/libast/common/comp/memcpy.c new file mode 100644 index 0000000000..d4151e64bc --- /dev/null +++ b/usr/src/lib/libast/common/comp/memcpy.c @@ -0,0 +1,60 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1985-2007 AT&T Knowledge Ventures * +* and is licensed under the * +* Common Public License, Version 1.0 * +* by AT&T Knowledge Ventures * +* * +* A copy of the License is available at * +* http://www.opensource.org/licenses/cpl1.0.txt * +* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * +* * +* Information and Software Systems Research * +* AT&T Research * +* Florham Park NJ * +* * +* Glenn Fowler <gsf@research.att.com> * +* David Korn <dgk@research.att.com> * +* Phong Vo <kpv@research.att.com> * +* * +***********************************************************************/ +#pragma prototyped + +#include <ast.h> + +#if _lib_memcpy + +NoN(memcpy) + +#else + +#undef memcpy + +#if _lib_bcopy + +extern void bcopy(void*, void*, size_t); + +void* +memcpy(void* s1, void* s2, size_t n) +{ + bcopy(s2, s1, n); + return(s1); +} + +#else + +void* +memcpy(void* as1, const void* as2, register size_t n) +{ + register char* s1 = (char*)as1; + register const char* s2 = (const char*)as2; + + while (n-- > 0) + *s1++ = *s2++; + return(as1); +} + +#endif + +#endif |