byteswap.h
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- /* Copyright (C) 1997 Free Software Foundation, Inc.
- This file is part of the GNU C Library.
- The GNU C Library is free software; you can redistribute it and/or
- modify it under the terms of the GNU Lesser General Public
- License as published by the Free Software Foundation; either
- version 2.1 of the License, or (at your option) any later version.
- The GNU C Library is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- Lesser General Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with the GNU C Library; if not, write to the Free
- Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
- 02111-1307 USA. */
- #ifndef _BYTESWAP_H
- #define _BYTESWAP_H 1
- /* Get the machine specific, optimized definitions. */
- #include <bits/byteswap.h>
- /* The following definitions must all be macros since otherwise some
- of the possible optimizations are not possible. */
- /* Return a value with all bytes in the 16 bit argument swapped. */
- #define bswap_16(x) __bswap_16 (x)
- /* Return a value with all bytes in the 32 bit argument swapped. */
- #define bswap_32(x) __bswap_32 (x)
- #if defined __GNUC__ && __GNUC__ >= 2
- /* Return a value with all bytes in the 64 bit argument swapped. */
- # define bswap_64(x) __bswap_64 (x)
- #endif
- #endif /* byteswap.h */