1/* DO NOT EDIT! GENERATED AUTOMATICALLY! */
2/* byteswap.h - Byte swapping
3   Copyright (C) 2005 Free Software Foundation, Inc.
4   Written by Oskar Liljeblad <oskar@osk.mine.nu>, 2005.
5
6   This program is free software; you can redistribute it and/or modify
7   it under the terms of the GNU General Public License as published by
8   the Free Software Foundation; either version 2, or (at your option)
9   any later version.
10
11   This program is distributed in the hope that it will be useful,
12   but WITHOUT ANY WARRANTY; without even the implied warranty of
13   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
14   GNU General Public License for more details.
15
16   You should have received a copy of the GNU General Public License
17   along with this program; if not, write to the Free Software Foundation,
18   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.  */
19
20#ifndef _BYTESWAP_H
21
22#include <sys/endian.h>
23#if _BYTE_ORDER == _LITTLE_ENDIAN
24/* Given an unsigned 16-bit argument X, return the value corresponding to
25   X with reversed byte order.  */
26#define bswap_16(x) ((((x) & 0x00FF) << 8) | \
27		     (((x) & 0xFF00) >> 8))
28
29/* Given an unsigned 32-bit argument X, return the value corresponding to
30   X with reversed byte order.  */
31#define bswap_32(x) ((((x) & 0x000000FF) << 24) | \
32		     (((x) & 0x0000FF00) << 8) | \
33		     (((x) & 0x00FF0000) << 8) | \
34		     (((x) & 0xFF000000) >> 24))
35
36/* Given an unsigned 64-bit argument X, return the value corresponding to
37   X with reversed byte order.  */
38#define bswap_64(x) ((((x) & 0x00000000000000FFULL) << 56) | \
39		     (((x) & 0x000000000000FF00ULL) << 40) | \
40		     (((x) & 0x0000000000FF0000ULL) << 24) | \
41		     (((x) & 0x00000000FF000000ULL) << 8) | \
42		     (((x) & 0x000000FF00000000ULL) >> 8) | \
43		     (((x) & 0x0000FF0000000000ULL) >> 24) | \
44		     (((x) & 0x00FF000000000000ULL) >> 40) | \
45		     (((x) & 0xFF00000000000000ULL) >> 56))
46#else
47#define bswap_16(x) (x)
48#define bswap_32(x) (x)
49#define bswap_64(x) (x)
50#endif
51
52#endif
53