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Merge changes from Trunk. Fixes #6013. Fixes #7151. Fixes #7359. Fixes #7389. Fixes #7452. Fixes #7528. Fixes #7703. Fixes #7841. Fixes #7898. Fixes #7938. Fixes #8048.

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[SVN r83139]
This commit is contained in:
John Maddock
2013-02-24 19:07:59 +00:00
committed by Peter Dimov
parent 380b7c8890
commit 16e8970091
1 changed files with 52 additions and 4 deletions
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56
include/boost/detail/endian.hpp
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@ -28,10 +28,12 @@
#ifndef BOOST_DETAIL_ENDIAN_HPP
#define BOOST_DETAIL_ENDIAN_HPP
//
// Special cases come first:
//
#if defined (__GLIBC__)
// 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
@ -43,13 +45,56 @@
# error Unknown machine endianness detected.
# endif
# define BOOST_BYTE_ORDER __BYTE_ORDER
#elif defined(__NetBSD__) || defined(__FreeBSD__) || \
defined(__OpenBSD__) || (__DragonFly__)
//
// BSD has endian.h, see https://svn.boost.org/trac/boost/ticket/6013
# if defined(__OpenBSD__)
# include <machine/endian.h>
# else
# include <sys/endian.h>
# endif
# 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( __ANDROID__ )
// Adroid specific code, see: https://svn.boost.org/trac/boost/ticket/7528
// Here we can use machine/_types.h, see:
// http://stackoverflow.com/questions/6212951/endianness-of-android-ndk
# include "machine/_types.h"
# ifdef __ARMEB__
# define BOOST_BIG_ENDIAN
# define BOOST_BYTE_ORDER 4321
# else
# define BOOST_LITTLE_ENDIAN
# define BOOST_BYTE_ORDER 1234
# endif // __ARMEB__
#elif defined( _XBOX )
//
// XBox is always big endian??
//
# define BOOST_BIG_ENDIAN
# define BOOST_BYTE_ORDER 4321
#elif defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN) || \
defined(__BIG_ENDIAN__) && !defined(__LITTLE_ENDIAN__) || \
defined(__BIGENDIAN__) && !defined(__LITTLEENDIAN__) || \
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(__LITTLEENDIAN__) && !defined(__BIGENDIAN__) || \
defined(_STLP_LITTLE_ENDIAN) && !defined(_STLP_BIG_ENDIAN)
# define BOOST_LITTLE_ENDIAN
# define BOOST_BYTE_ORDER 1234
@ -57,7 +102,7 @@
|| defined(_POWER) || defined(__powerpc__) \
|| defined(__ppc__) || defined(__hpux) || defined(__hppa) \
|| defined(_MIPSEB) || defined(_POWER) \
|| defined(__s390__)
|| defined(__s390__) || defined(__ARMEB__)
# define BOOST_BIG_ENDIAN
# define BOOST_BYTE_ORDER 4321
#elif defined(__i386__) || defined(__alpha__) \
@ -66,7 +111,9 @@
|| defined(_M_ALPHA) || defined(__amd64) \
|| defined(__amd64__) || defined(_M_AMD64) \
|| defined(__x86_64) || defined(__x86_64__) \
|| defined(_M_X64) || defined(__bfin__)
|| defined(_M_X64) || defined(__bfin__) \
|| defined(__ARMEL__) \
|| (defined(_WIN32) && defined(__ARM__) && defined(_MSC_VER)) // ARM Windows CE don't define anything reasonably unique, but there are no big-endian Windows versions
# define BOOST_LITTLE_ENDIAN
# define BOOST_BYTE_ORDER 1234
@ -76,3 +123,4 @@
#endif