1 rizwank 1.1 /* Copy LEN bytes starting at SRCADDR to DESTADDR.  Result undefined
 2                if the source overlaps with the destination.
 3                Return DESTADDR. */
 4             
 5             char *
 6             memcpy (destaddr, srcaddr, len)
 7                  char *destaddr;
 8                  const char *srcaddr;
 9                  int len;
10             {
11               char *dest = destaddr;
12             
13               while (len-- > 0)
14                 *destaddr++ = *srcaddr++;
15               return dest;
16             }