Mercurial > gnulib
view lib/memxor.h @ 40212:8da9577294da
unistr/*, uniconv/*: Fix undefined behaviour.
Reported by Jeffrey Walton <noloader@gmail.com>.
* lib/unistr/u-cpy.h (FUNC): Don't invoke memcpy with a zero size.
* lib/unistr/u-cpy-alloc.h (FUNC): Likewise.
* lib/uniconv/u8-conv-from-enc.c (u8_conv_from_encoding): Likewise.
* lib/uniconv/u8-conv-to-enc.c (u8_conv_to_encoding): Likewise.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 09 Mar 2019 00:01:47 +0100 |
parents | b06060465f09 |
children |
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/* memxor.h -- perform binary exclusive OR operation on memory blocks. Copyright (C) 2005, 2009-2019 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, see <https://www.gnu.org/licenses/>. */ /* Written by Simon Josefsson. The interface was inspired by memxor in Niels Möller's Nettle. */ #ifndef MEMXOR_H # define MEMXOR_H #include <stddef.h> /* Compute binary exclusive OR of memory areas DEST and SRC, putting the result in DEST, of length N bytes. Returns a pointer to DEST. */ void *memxor (void *restrict dest, const void *restrict src, size_t n); #endif /* MEMXOR_H */ /* * Hey Emacs! * Local Variables: * coding: utf-8 * End: */