gnu/dist/texinfo/lib/memcpy.c

   1 /*      $NetBSD$        */
   2
   3 /* Copyright (C) 1995, 1997, 2000, 2003 Free Software Foundation, Inc.
   4
   5    This program is free software; you can redistribute it and/or modify
   6    it under the terms of the GNU General Public License as published by
   7    the Free Software Foundation; either version 2, or (at your option)
   8    any later version.
   9
  10    This program is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13    GNU General Public License for more details.
  14
  15    You should have received a copy of the GNU General Public License
  16    along with this program; if not, write to the Free Software Foundation,
  17    Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
  18
  19 /* Written by Jim Meyering <meyering@na-net.ornl.gov>.  */
  20
  21 #if HAVE_CONFIG_H
  22 # include <config.h>
  23 #endif
  24
  25 #include <stddef.h>
  26
  27 /* Copy LEN bytes starting at SRCADDR to DESTADDR.  Result undefined
  28    if the source overlaps with the destination.
  29    Return DESTADDR. */
  30
  31 void *
  32 memcpy (void *destaddr, void const *srcaddr, size_t len)
  33 {
  34   char *dest = destaddr;
  35   char const *src = srcaddr;
  36
  37   while (len-- > 0)
  38     *dest++ = *src++;
  39   return destaddr;
  40 }