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// Copyright 2005 Caleb Epstein
// Copyright 2006 John Maddock
// Copyright 2010 Rene Rivera
// Distributed under the Boost Software License, Version 1.0. (See accompany-
// ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
/*
* Copyright (c) 1997
* Silicon Graphics Computer Systems, Inc.
*
* Permission to use, copy, modify, distribute and sell this software
* and its documentation for any purpose is hereby granted without fee,
* provided that the above copyright notice appear in all copies and
* that both that copyright notice and this permission notice appear
* in supporting documentation. Silicon Graphics makes no
* representations about the suitability of this software for any
* purpose. It is provided "as is" without express or implied warranty.
*/
/*
* Copyright notice reproduced from <boost/detail/limits.hpp>, from
* which this code was originally taken.
*
* Modified by Caleb Epstein to use <endian.h> with GNU libc and to
* defined the BOOST_ENDIAN macro.
*/
#ifndef BOOST_DETAIL_ENDIAN_HPP
#define BOOST_DETAIL_ENDIAN_HPP
// GNU libc offers the helpful header <endian.h> which defines
// __BYTE_ORDER
#if defined (__GLIBC__)
# include <endian.h>
# if (__BYTE_ORDER == __LITTLE_ENDIAN)
# define BOOST_LITTLE_ENDIAN
# elif (__BYTE_ORDER == __BIG_ENDIAN)
# define BOOST_BIG_ENDIAN
# elif (__BYTE_ORDER == __PDP_ENDIAN)
# define BOOST_PDP_ENDIAN
# else
# error Unknown machine endianness detected.
# endif
# define BOOST_BYTE_ORDER __BYTE_ORDER
#elif defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN) || \
defined(__BIG_ENDIAN__) && !defined(__LITTLE_ENDIAN__)
# define BOOST_BIG_ENDIAN
# define BOOST_BYTE_ORDER 4321
#elif defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN) || \
defined(__LITTLE_ENDIAN__) && !defined(__BIG_ENDIAN__)
# define BOOST_LITTLE_ENDIAN
# define BOOST_BYTE_ORDER 1234
#elif defined(__sparc) || defined(__sparc__) \
|| defined(_POWER) || defined(__powerpc__) \
|| defined(__ppc__) || defined(__hpux) || defined(__hppa) \
|| defined(_MIPSEB) || defined(_POWER) \
|| defined(__s390__)
# define BOOST_BIG_ENDIAN
# define BOOST_BYTE_ORDER 4321
#elif defined(__i386__) || defined(__alpha__) \
|| defined(__ia64) || defined(__ia64__) \
|| defined(_M_IX86) || defined(_M_IA64) \
|| defined(_M_ALPHA) || defined(__amd64) \
|| defined(__amd64__) || defined(_M_AMD64) \
|| defined(__x86_64) || defined(__x86_64__) \
|| defined(_M_X64) || defined(__bfin__)
# define BOOST_LITTLE_ENDIAN
# define BOOST_BYTE_ORDER 1234
#else
# error The file boost/detail/endian.hpp needs to be set up for your CPU type.
#endif
#endif
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