From 2a818a001e1a967a08c6471406db32b93226f91f Mon Sep 17 00:00:00 2001 From: Jim Meyering Date: Sun, 30 Jul 1995 05:30:04 +0000 Subject: [PATCH] Get new copy from FSF. --- lib/memcpy.c | 33 ++++++++++++--------------------- 1 file changed, 12 insertions(+), 21 deletions(-) diff --git a/lib/memcpy.c b/lib/memcpy.c index a1f8b8f2b5..dba7d56f12 100644 --- a/lib/memcpy.c +++ b/lib/memcpy.c @@ -1,25 +1,16 @@ -/* memcpy.c -- copy memory. - Copy LENGTH bytes from SOURCE to DEST. Does not null-terminate. - The source and destination regions may not overlap. - In the public domain. - By Jim Meyering. */ +/* Copy LEN bytes starting at SRCADDR to DESTADDR. Result undefined + if the source overlaps with the destination. + Return DESTADDR. */ -/* FIXME: remove this before release. */ -#include -#ifndef ABS -# define ABS(x) ((x) < 0 ? (-(x)) : (x)) -#endif - -void -memcpy (dest, source, length) - char *dest; - const char *source; - unsigned length; +char * +memcpy (destaddr, srcaddr, len) + char *destaddr; + const char *srcaddr; + int len; { - assert (length >= 0); - /* Make sure they don't overlap. */ - assert (ABS (dest - source) >= length); + char *dest = destaddr; - for (; length; --length) - *dest++ = *source++; + while (len-- > 0) + *destaddr++ = *srcaddr++; + return dest; } -- 2.30.2