/* memxor.c -- perform binary exclusive OR operation of two memory blocks. Copyright (C) 2005, 2006 Free Software Foundation, Inc. This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2, or (at your option) any later version. This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with this program; if not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ /* Written by Simon Josefsson. The interface was inspired by memxor in Niels Möller's Nettle. */ #include #include "memxor.h" void * memxor (void *restrict dest, const void *restrict src, size_t n) { char const *s = src; char *d = dest; for (; n > 0; n--) *d++ ^= *s++; return dest; }