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0a3fce86 | 1 | /* Swap byte order for 16, 32 and 64 bit values |
2b778ceb | 2 | Copyright (C) 1997-2021 Free Software Foundation, Inc. |
ceb2d9aa | 3 | This file is part of the GNU C Library. |
28f540f4 | 4 | |
ceb2d9aa | 5 | The GNU C Library is free software; you can redistribute it and/or |
41bdb6e2 AJ |
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. | |
28f540f4 | 9 | |
ceb2d9aa UD |
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 | |
41bdb6e2 | 13 | Lesser General Public License for more details. |
28f540f4 | 14 | |
41bdb6e2 | 15 | You should have received a copy of the GNU Lesser General Public |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
28f540f4 | 18 | |
1522c368 UD |
19 | #ifndef _BYTESWAP_H |
20 | #define _BYTESWAP_H 1 | |
21 | ||
b1aa60f3 AJ |
22 | #include <features.h> |
23 | ||
1522c368 UD |
24 | /* Get the machine specific, optimized definitions. */ |
25 | #include <bits/byteswap.h> | |
26 | ||
27 | ||
0a3fce86 | 28 | /* The following definitions must all be macros, otherwise some |
1522c368 UD |
29 | of the possible optimizations are not possible. */ |
30 | ||
0a3fce86 | 31 | /* Return a value with both bytes in the 16 bit argument swapped. */ |
1522c368 UD |
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 | ||
1522c368 | 37 | /* Return a value with all bytes in the 64 bit argument swapped. */ |
6a57d931 | 38 | #define bswap_64(x) __bswap_64 (x) |
28f540f4 | 39 | |
1522c368 | 40 | #endif /* byteswap.h */ |