projects / thirdparty / glibc.git / blame
| Commit | Line | Data |
|---|---|---|
| f7a9f785 | 1 | /* Copyright (C) 2011-2016 Free Software Foundation, Inc. |
| 63d143a2 CM |
2 | This file is part of the GNU C Library. |
| 3 | Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011. | |
| 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 | |
| ab84e3ff PE |
16 | License along with the GNU C Library. If not, see |
| 17 | <http://www.gnu.org/licenses/>. */ | |
| 63d143a2 CM |
18 | |
| 19 | #if !defined _BYTESWAP_H && !defined _NETINET_IN_H && !defined _ENDIAN_H | |
| 20 | # error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead." | |
| 21 | #endif | |
| 22 | ||
| 23 | #ifndef _BITS_BYTESWAP_H | |
| 24 | #define _BITS_BYTESWAP_H 1 | |
| 25 | ||
| 73deba6d CM |
26 | #include <bits/types.h> |
| 27 | ||
| 63d143a2 CM |
28 | /* gcc __builtin_bswap64() can constant-fold, etc, so always use it. */ |
| 29 | #define __bswap_16(x) ((unsigned short)(__builtin_bswap32(x) >> 16)) | |
| 30 | #define __bswap_32(x) ((unsigned int)__builtin_bswap32(x)) | |
| 73deba6d | 31 | #define __bswap_64(x) ((__uint64_t)__builtin_bswap64(x)) |
| 63d143a2 CM |
32 | |
| 33 | #define __bswap_constant_16(x) __bswap_16(x) | |
| 34 | #define __bswap_constant_32(x) __bswap_32(x) | |
| 35 | #define __bswap_constant_64(x) __bswap_64(x) | |
| 36 | ||
| 37 | #endif /* _BITS_BYTESWAP_H */ |