1/* Swap byte order for 16, 32 and 64 bit values
 2   Copyright (C) 1997-2025 Free Software Foundation, Inc.
 3   This file is part of the GNU C Library.
 4
 5   The GNU C Library is free software; you can redistribute it and/or
 6   modify it under the terms of the GNU Lesser General Public
 7   License as published by the Free Software Foundation; either
 8   version 2.1 of the License, or (at your option) any later version.
 9
10   The GNU C Library is distributed in the hope that it will be useful,
11   but WITHOUT ANY WARRANTY; without even the implied warranty of
12   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
13   Lesser General Public License for more details.
14
15   You should have received a copy of the GNU Lesser General Public
16   License along with the GNU C Library; if not, see
17   <https://www.gnu.org/licenses/>.  */
18
19#ifndef _BYTESWAP_H
20#define _BYTESWAP_H	1
21
22#include <features.h>
23
24/* Get the machine specific, optimized definitions.  */
25#include <bits/byteswap.h>
26
27
28/* The following definitions must all be macros, otherwise some
29   of the possible optimizations are not possible.  */
30
31/* Return a value with both bytes in the 16 bit argument swapped.  */
32#define bswap_16(x) __bswap_16 (x)
33
34/* Return a value with all bytes in the 32 bit argument swapped.  */
35#define bswap_32(x) __bswap_32 (x)
36
37/* Return a value with all bytes in the 64 bit argument swapped.  */
38#define bswap_64(x) __bswap_64 (x)
39
40#endif /* byteswap.h */