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| 63 | pj | 1 | /* Copyright (C) 1997 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
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| 3 | |||
| 4 | The GNU C Library is free software; you can redistribute it and/or |
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| 5 | modify it under the terms of the GNU Lesser General Public |
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| 6 | License as published by the Free Software Foundation; either |
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| 7 | version 2.1 of the License, or (at your option) any later version. |
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| 8 | |||
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
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| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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| 12 | Lesser General Public License for more details. |
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| 13 | |||
| 14 | You should have received a copy of the GNU Lesser General Public |
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| 15 | License along with the GNU C Library; if not, write to the Free |
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| 16 | Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
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| 17 | 02111-1307 USA. */ |
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| 18 | |||
| 19 | #ifndef _BYTESWAP_H |
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| 20 | #define _BYTESWAP_H 1 |
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| 21 | |||
| 22 | /* Get the machine specific, optimized definitions. */ |
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| 23 | #include <bits/byteswap.h> |
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| 80 | pj | 24 | #include "ll/sys/cdefs.h" |
| 63 | pj | 25 | |
| 80 | pj | 26 | __BEGIN_DECLS |
| 63 | pj | 27 | |
| 80 | pj | 28 | |
| 63 | pj | 29 | /* The following definitions must all be macros since otherwise some |
| 30 | of the possible optimizations are not possible. */ |
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| 31 | |||
| 32 | /* Return a value with all bytes in the 16 bit argument swapped. */ |
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| 33 | #define bswap_16(x) __bswap_16 (x) |
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| 34 | |||
| 35 | /* Return a value with all bytes in the 32 bit argument swapped. */ |
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| 36 | #define bswap_32(x) __bswap_32 (x) |
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| 37 | |||
| 38 | #if defined __GNUC__ && __GNUC__ >= 2 |
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| 39 | /* Return a value with all bytes in the 64 bit argument swapped. */ |
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| 40 | # define bswap_64(x) __bswap_64 (x) |
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| 41 | #endif |
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| 42 | |||
| 80 | pj | 43 | __END_DECLS |
| 63 | pj | 44 | #endif /* byteswap.h */ |