1/* Copyright (C) 1997 Free Software Foundation, Inc.
2   This file is part of the GNU C Library.
3
4   The GNU C Library is free software; you can redistribute it and/or
5   modify it under the terms of the GNU Lesser General Public
6   License as published by the Free Software Foundation; either
7   version 2.1 of the License, or (at your option) any later version.
8
9   The GNU C Library 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 GNU
12   Lesser General Public License for more details.
13
14   You should have received a copy of the GNU Lesser General Public
15   License along with the GNU C Library; if not, write to the Free
16   Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
17   02111-1307 USA.  */
18
19#ifndef _BYTESWAP_H
20#define _BYTESWAP_H	1
21
22/* Get the machine specific, optimized definitions.  */
23#include <bits/byteswap.h>
24
25
26/* The following definitions must all be macros since otherwise some
27   of the possible optimizations are not possible.  */
28
29/* Return a value with all bytes in the 16 bit argument swapped.  */
30#define bswap_16(x) __bswap_16 (x)
31
32/* Return a value with all bytes in the 32 bit argument swapped.  */
33#define bswap_32(x) __bswap_32 (x)
34
35#if defined __GNUC__ && __GNUC__ >= 2
36/* Return a value with all bytes in the 64 bit argument swapped.  */
37# define bswap_64(x) __bswap_64 (x)
38#endif
39
40#endif /* byteswap.h */
41