mirror of
https://github.com/DarkFlippers/unleashed-firmware
synced 2024-12-26 20:53:07 +00:00
30 lines
1.1 KiB
C
30 lines
1.1 KiB
C
/* 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 "memxor.h"
|
|
|
|
void* memxor(void* /*restrict*/ dest, const void* /*restrict*/ src, size_t n) {
|
|
char const* s = (char const*)src;
|
|
char* d = (char*)dest;
|
|
|
|
for(; n > 0; n--) *d++ ^= *s++;
|
|
|
|
return dest;
|
|
}
|