1/* memxor.c -- perform binary exclusive OR operation of two memory blocks.
2 Copyright (C) 2005-2006, 2009-2012 Free Software Foundation, Inc.
3
4 This program is free software; you can redistribute it and/or modify
5 it under the terms of the GNU Lesser General Public License as published by
6 the Free Software Foundation; either version 2.1, or (at your option)
7 any later version.
8
9 This program is distributed in the hope that it will be useful,
10 but WITHOUT ANY WARRANTY; without even the implied warranty of
11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 GNU Lesser General Public License for more details.
13
14 You should have received a copy of the GNU Lesser General Public License
15 along with this program; if not, see <http://www.gnu.org/licenses/>. */
16
17/* Written by Simon Josefsson. The interface was inspired by memxor
18 in Niels Möller's Nettle. */
19
20#include <config.h>
21
22#include "memxor.h"
23
24void *
25memxor (void *restrict dest, const void *restrict src, size_t n)
26{
27 char const *s = src;
28 char *d = dest;
29
30 for (; n > 0; n--)
31 *d++ ^= *s++;
32
33 return dest;
34}
35