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