gl/memxor.h

   1 /* memxor.h -- perform binary exclusive OR operation on memory blocks.
   2    Copyright (C) 2005 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 General Public License as published by
   6    the Free Software Foundation; either version 2, 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 General Public License for more details.
  13
  14    You should have received a copy of the GNU General Public License
  15    along with this program; if not, write to the Free Software Foundation,
  16    Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
  17
  18 /* Written by Simon Josefsson.  The interface was inspired by memxor
  19    in Niels Möller's Nettle. */
  20
  21 #ifndef MEMXOR_H
  22 # define MEMXOR_H
  23
  24 #include <stddef.h>
  25
  26 /* Compute binary exclusive OR of memory areas DEST and SRC, putting
  27    the result in DEST, of length N bytes.  Returns a pointer to
  28    DEST. */
  29 void *memxor (void *restrict dest, const void *restrict src, size_t n);
  30
  31 #endif /* MEMXOR_H */