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annotate lib/memxor.h @ 40186:8964917f9574

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author Karl Berry <karl@freefriends.org>
date Mon, 18 Feb 2019 08:02:49 -0800
parents b06060465f09
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1 /* memxor.h -- perform binary exclusive OR operation on memory blocks.
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2 Copyright (C) 2005, 2009-2019 Free Software Foundation, Inc.
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3
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4 This program is free software; you can redistribute it and/or modify
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5 it under the terms of the GNU General Public License as published by
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6 the Free Software Foundation; either version 2, or (at your option)
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7 any later version.
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8
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9 This program is distributed in the hope that it will be useful,
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10 but WITHOUT ANY WARRANTY; without even the implied warranty of
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11 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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12 GNU General Public License for more details.
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13
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14 You should have received a copy of the GNU General Public License
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15 along with this program; if not, see <https://www.gnu.org/licenses/>. */
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16
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17 /* Written by Simon Josefsson. The interface was inspired by memxor
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18 in Niels Möller's Nettle. */
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19
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20 #ifndef MEMXOR_H
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21 # define MEMXOR_H
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22
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23 #include <stddef.h>
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24
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25 /* Compute binary exclusive OR of memory areas DEST and SRC, putting
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26 the result in DEST, of length N bytes. Returns a pointer to
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27 DEST. */
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28 void *memxor (void *restrict dest, const void *restrict src, size_t n);
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29
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30 #endif /* MEMXOR_H */
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31
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32 /*
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33 * Hey Emacs!
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34 * Local Variables:
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35 * coding: utf-8
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36 * End:
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37 */