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/* 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
License along with the GNU C Library. If not, see
<http://www.gnu.org/licenses/>. */
#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
#include <bits/types.h>
/* 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) ((__uint64_t)__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 */
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