2011-12-04 02:14:25 +00:00
|
|
|
/* Copyright (C) 2011 Free Software Foundation, Inc.
|
|
|
|
This file is part of the GNU C Library.
|
|
|
|
Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
|
|
|
|
|
|
|
|
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
|
2012-03-09 23:56:38 +00:00
|
|
|
License along with the GNU C Library. If not, see
|
|
|
|
<http://www.gnu.org/licenses/>. */
|
2011-12-04 02:14:25 +00:00
|
|
|
|
|
|
|
#if !defined _BYTESWAP_H && !defined _NETINET_IN_H && !defined _ENDIAN_H
|
|
|
|
# error "Never use <bits/byteswap.h> directly; include <byteswap.h> instead."
|
|
|
|
#endif
|
|
|
|
|
|
|
|
#ifndef _BITS_BYTESWAP_H
|
|
|
|
#define _BITS_BYTESWAP_H 1
|
|
|
|
|
|
|
|
/* gcc __builtin_bswap64() can constant-fold, etc, so always use it. */
|
|
|
|
#define __bswap_16(x) ((unsigned short)(__builtin_bswap32(x) >> 16))
|
|
|
|
#define __bswap_32(x) ((unsigned int)__builtin_bswap32(x))
|
|
|
|
#define __bswap_64(x) ((unsigned long long)__builtin_bswap64(x))
|
|
|
|
|
|
|
|
#define __bswap_constant_16(x) __bswap_16(x)
|
|
|
|
#define __bswap_constant_32(x) __bswap_32(x)
|
|
|
|
#define __bswap_constant_64(x) __bswap_64(x)
|
|
|
|
|
|
|
|
#endif /* _BITS_BYTESWAP_H */
|