ReactOS 0.4.15-dev-8191-gbc6c731
byteswap.h
Go to the documentation of this file.
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., 51 Franklin Street, Fifth Floor,
17 Boston, MA 02110-1301, USA.
18*/
19
20#ifndef _BYTESWAP_H
21#define _BYTESWAP_H 1
22
23/* Get the machine specific, optimized definitions. */
24#include "byteswap1.h"
25
26
27/* The following definitions must all be macros since otherwise some
28 of the possible optimizations are not possible. */
29
30/* Return a value with all bytes in the 16 bit argument swapped. */
31#define bswap_16(x) __bswap_16 (x)
32
33/* Return a value with all bytes in the 32 bit argument swapped. */
34#define bswap_32(x) __bswap_32 (x)
35
36#if defined __GNUC__ && __GNUC__ >= 2
37/* Return a value with all bytes in the 64 bit argument swapped. */
38# define bswap_64(x) __bswap_64 (x)
39#endif
40
41#endif /* byteswap.h */