1 | /* Copyright (C) 1997-2018 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, see |
16 | <http://www.gnu.org/licenses/>. */ |
17 | |
18 | #ifndef _BYTESWAP_H |
19 | #define _BYTESWAP_H 1 |
20 | |
21 | #include <features.h> |
22 | |
23 | /* Get the machine specific, optimized definitions. */ |
24 | #include <bits/byteswap.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 | /* Return a value with all bytes in the 64 bit argument swapped. */ |
37 | #define bswap_64(x) __bswap_64 (x) |
38 | |
39 | #endif /* byteswap.h */ |
40 | |