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01: /* Copyright (C) 1997 Free Software Foundation, Inc.
02:    This file is part of the GNU C Library.
03: 
04:    The GNU C Library is free software; you can redistribute it and/or
05:    modify it under the terms of the GNU Lesser General Public
06:    License as published by the Free Software Foundation; either
07:    version 2.1 of the License, or (at your option) any later version.
08: 
09:    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 */
41: 

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