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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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