| // 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__) || \ | |
| defined(_STLP_BIG_ENDIAN) && !defined(_STLP_LITTLE_ENDIAN) | |
| # define BOOST_BIG_ENDIAN | |
| # define BOOST_BYTE_ORDER 4321 | |
| #elif defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN) || \ | |
| defined(__LITTLE_ENDIAN__) && !defined(__BIG_ENDIAN__) || \ | |
| defined(_STLP_LITTLE_ENDIAN) && !defined(_STLP_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 |