1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/* Swap byte order for 16, 32 and 64 bit values
Copyright (C) 1997-2022 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<https://www.gnu.org/licenses/>. */
#ifndef _BYTESWAP_H
#define _BYTESWAP_H 1
#include <features.h>
/* Get the machine specific, optimized definitions. */
#include <bits/byteswap.h>
/* The following definitions must all be macros, otherwise some
of the possible optimizations are not possible. */
/* Return a value with both bytes in the 16 bit argument swapped. */
#define bswap_16(x) __bswap_16 (x)
/* Return a value with all bytes in the 32 bit argument swapped. */
#define bswap_32(x) __bswap_32 (x)
/* Return a value with all bytes in the 64 bit argument swapped. */
#define bswap_64(x) __bswap_64 (x)
#endif /* byteswap.h */
|
