sl@0: // Copyright 2005 Caleb Epstein
sl@0: // Copyright 2006 John Maddock
sl@0: // Distributed under the Boost Software License, Version 1.0. (See accompany-
sl@0: // ing file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
sl@0: 
sl@0: /*
sl@0:  * Copyright (c) 1997
sl@0:  * Silicon Graphics Computer Systems, Inc.
sl@0:  *
sl@0:  * Permission to use, copy, modify, distribute and sell this software
sl@0:  * and its documentation for any purpose is hereby granted without fee,
sl@0:  * provided that the above copyright notice appear in all copies and
sl@0:  * that both that copyright notice and this permission notice appear
sl@0:  * in supporting documentation.  Silicon Graphics makes no
sl@0:  * representations about the suitability of this software for any
sl@0:  * purpose.  It is provided "as is" without express or implied warranty.
sl@0:  */
sl@0: 
sl@0: /*
sl@0:  * Copyright notice reproduced from <boost/detail/limits.hpp>, from
sl@0:  * which this code was originally taken.
sl@0:  *
sl@0:  * Modified by Caleb Epstein to use <endian.h> with GNU libc and to
sl@0:  * defined the BOOST_ENDIAN macro.
sl@0:  */
sl@0: 
sl@0: #ifndef BOOST_DETAIL_ENDIAN_HPP
sl@0: #define BOOST_DETAIL_ENDIAN_HPP
sl@0: 
sl@0: // GNU libc offers the helpful header <endian.h> which defines
sl@0: // __BYTE_ORDER
sl@0: 
sl@0: #if defined (__GLIBC__)
sl@0: # include <endian.h>
sl@0: # if (__BYTE_ORDER == __LITTLE_ENDIAN)
sl@0: #  define BOOST_LITTLE_ENDIAN
sl@0: # elif (__BYTE_ORDER == __BIG_ENDIAN)
sl@0: #  define BOOST_BIG_ENDIAN
sl@0: # elif (__BYTE_ORDER == __PDP_ENDIAN)
sl@0: #  define BOOST_PDP_ENDIAN
sl@0: # else
sl@0: #  error Unknown machine endianness detected.
sl@0: # endif
sl@0: # define BOOST_BYTE_ORDER __BYTE_ORDER
sl@0: #elif defined(_BIG_ENDIAN)
sl@0: # define BOOST_BIG_ENDIAN
sl@0: # define BOOST_BYTE_ORDER 4321
sl@0: #elif defined(_LITTLE_ENDIAN)
sl@0: # define BOOST_LITTLE_ENDIAN
sl@0: # define BOOST_BYTE_ORDER 1234
sl@0: #elif defined(__sparc) || defined(__sparc__) \
sl@0:    || defined(_POWER) || defined(__powerpc__) \
sl@0:    || defined(__ppc__) || defined(__hpux) \
sl@0:    || defined(_MIPSEB) || defined(_POWER) \
sl@0:    || defined(__s390__)
sl@0: # define BOOST_BIG_ENDIAN
sl@0: # define BOOST_BYTE_ORDER 4321
sl@0: #elif defined(__i386__) || defined(__alpha__) \
sl@0:    || defined(__ia64) || defined(__ia64__) \
sl@0:    || defined(_M_IX86) || defined(_M_IA64) \
sl@0:    || defined(_M_ALPHA) || defined(__amd64) \
sl@0:    || defined(__amd64__) || defined(_M_AMD64) \
sl@0:    || defined(__x86_64) || defined(__x86_64__) \
sl@0:    || defined(_M_X64)
sl@0: 
sl@0: # define BOOST_LITTLE_ENDIAN
sl@0: # define BOOST_BYTE_ORDER 1234
sl@0: #else
sl@0: # error The file boost/detail/endian.hpp needs to be set up for your CPU type.
sl@0: #endif
sl@0: 
sl@0: 
sl@0: #endif