| lh | 9ed821d | 2023-04-07 01:36:19 -0700 | [diff] [blame] | 1 | /* Copyright (C) 1997 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, write to the Free |
| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 17 | 02111-1307 USA. */ |
| 18 | |
| 19 | #ifndef _BYTESWAP_H |
| 20 | #define _BYTESWAP_H 1 |
| 21 | |
| 22 | /* Get the machine specific, optimized definitions. */ |
| 23 | #include <bits/byteswap.h> |
| 24 | |
| 25 | |
| 26 | /* The following definitions must all be macros since otherwise some |
| 27 | of the possible optimizations are not possible. */ |
| 28 | |
| 29 | /* Return a value with all bytes in the 16 bit argument swapped. */ |
| 30 | #define bswap_16(x) __bswap_16 (x) |
| 31 | |
| 32 | /* Return a value with all bytes in the 32 bit argument swapped. */ |
| 33 | #define bswap_32(x) __bswap_32 (x) |
| 34 | |
| 35 | #if defined __GNUC__ && __GNUC__ >= 2 |
| 36 | /* Return a value with all bytes in the 64 bit argument swapped. */ |
| 37 | # define bswap_64(x) __bswap_64 (x) |
| 38 | #endif |
| 39 | |
| 40 | #endif /* byteswap.h */ |