Imported Upstream version 93u+upstream

1 files changed, 60 insertions, 0 deletions

diff --git a/src/lib/libast/comp/memcpy.c b/src/lib/libast/comp/memcpy.c
new file mode 100644
index 0000000..25fa0b7
--- /dev/null
+++ b/src/lib/libast/comp/memcpy.c
@@ -0,0 +1,60 @@
+/***********************************************************************
+*                                                                      *
+*               This software is part of the ast package               *
+*          Copyright (c) 1985-2011 AT&T Intellectual Property          *
+*                      and is licensed under the                       *
+*                 Eclipse Public License, Version 1.0                  *
+*                    by AT&T Intellectual Property                     *
+*                                                                      *
+*                A copy of the License is available at                 *
+*          http://www.eclipse.org/org/documents/epl-v10.html           *
+*         (with md5 checksum b35adb5213ca9657e911e9befb180842)         *
+*                                                                      *
+*              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