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Diffstat (limited to '3rdParty/Boost/src/boost/predef/other/endian.h')
| -rw-r--r-- | 3rdParty/Boost/src/boost/predef/other/endian.h | 204 |
1 files changed, 204 insertions, 0 deletions
diff --git a/3rdParty/Boost/src/boost/predef/other/endian.h b/3rdParty/Boost/src/boost/predef/other/endian.h new file mode 100644 index 0000000..fd73364 --- /dev/null +++ b/3rdParty/Boost/src/boost/predef/other/endian.h @@ -0,0 +1,204 @@ +/* +Copyright Rene Rivera 2013-2014 +Distributed under the Boost Software License, Version 1.0. +(See accompanying file LICENSE_1_0.txt or copy at +http://www.boost.org/LICENSE_1_0.txt) +*/ + +#ifndef BOOST_PREDEF_ENDIAN_H +#define BOOST_PREDEF_ENDIAN_H + +#include <boost/predef/version_number.h> +#include <boost/predef/make.h> +#include <boost/predef/library/c/gnu.h> +#include <boost/predef/os/macos.h> +#include <boost/predef/os/bsd.h> + +/*` +[heading `BOOST_ENDIAN_*`] + +Detection of endian memory ordering. There are four defined macros +in this header that define the various generally possible endian +memory orderings: + +* `BOOST_ENDIAN_BIG_BYTE`, byte-swapped big-endian. +* `BOOST_ENDIAN_BIG_WORD`, word-swapped big-endian. +* `BOOST_ENDIAN_LITTLE_BYTE`, byte-swapped little-endian. +* `BOOST_ENDIAN_LITTLE_WORD`, word-swapped little-endian. + +The detection is conservative in that it only identifies endianness +that it knows for certain. In particular bi-endianness is not +indicated as is it not practically possible to determine the +endianness from anything but an operating system provided +header. And the currently known headers do not define that +programatic bi-endianness is available. + +This implementation is a compilation of various publicly available +information and acquired knowledge: + +# The indispensable documentation of "Pre-defined Compiler Macros" + [@http://sourceforge.net/p/predef/wiki/Endianness Endianness]. +# The various endian specifications available in the + [@http://wikipedia.org/ Wikipedia] computer architecture pages. +# Generally available searches for headers that define endianness. + */ + +#define BOOST_ENDIAN_BIG_BYTE BOOST_VERSION_NUMBER_NOT_AVAILABLE +#define BOOST_ENDIAN_BIG_WORD BOOST_VERSION_NUMBER_NOT_AVAILABLE +#define BOOST_ENDIAN_LITTLE_BYTE BOOST_VERSION_NUMBER_NOT_AVAILABLE +#define BOOST_ENDIAN_LITTLE_WORD BOOST_VERSION_NUMBER_NOT_AVAILABLE + +/* GNU libc provides a header defining __BYTE_ORDER, or _BYTE_ORDER. + * And some OSs provide some for of endian header also. + */ +#if !BOOST_ENDIAN_BIG_BYTE && !BOOST_ENDIAN_BIG_WORD && \ + !BOOST_ENDIAN_LITTLE_BYTE && !BOOST_ENDIAN_LITTLE_WORD +# if BOOST_LIB_C_GNU +# include <endian.h> +# else +# if BOOST_OS_MACOS +# include <machine/endian.h> +# else +# if BOOST_OS_BSD +# if BOOST_OS_BSD_OPEN +# include <machine/endian.h> +# else +# include <sys/endian.h> +# endif +# endif +# endif +# endif +# if defined(__BYTE_ORDER) +# if (__BYTE_ORDER == __BIG_ENDIAN) +# undef BOOST_ENDIAN_BIG_BYTE +# define BOOST_ENDIAN_BIG_BYTE BOOST_VERSION_NUMBER_AVAILABLE +# endif +# if (__BYTE_ORDER == __LITTLE_ENDIAN) +# undef BOOST_ENDIAN_LITTLE_BYTE +# define BOOST_ENDIAN_LITTLE_BYTE BOOST_VERSION_NUMBER_AVAILABLE +# endif +# if (__BYTE_ORDER == __PDP_ENDIAN) +# undef BOOST_ENDIAN_LITTLE_WORD +# define BOOST_ENDIAN_LITTLE_WORD BOOST_VERSION_NUMBER_AVAILABLE +# endif +# endif +# if !defined(__BYTE_ORDER) && defined(_BYTE_ORDER) +# if (_BYTE_ORDER == _BIG_ENDIAN) +# undef BOOST_ENDIAN_BIG_BYTE +# define BOOST_ENDIAN_BIG_BYTE BOOST_VERSION_NUMBER_AVAILABLE +# endif +# if (_BYTE_ORDER == _LITTLE_ENDIAN) +# undef BOOST_ENDIAN_LITTLE_BYTE +# define BOOST_ENDIAN_LITTLE_BYTE BOOST_VERSION_NUMBER_AVAILABLE +# endif +# if (_BYTE_ORDER == _PDP_ENDIAN) +# undef BOOST_ENDIAN_LITTLE_WORD +# define BOOST_ENDIAN_LITTLE_WORD BOOST_VERSION_NUMBER_AVAILABLE +# endif +# endif +#endif + +/* Built-in byte-swpped big-endian macros. + */ +#if !BOOST_ENDIAN_BIG_BYTE && !BOOST_ENDIAN_BIG_WORD && \ + !BOOST_ENDIAN_LITTLE_BYTE && !BOOST_ENDIAN_LITTLE_WORD +# if (defined(__BIG_ENDIAN__) && !defined(__LITTLE_ENDIAN__)) || \ + (defined(_BIG_ENDIAN) && !defined(_LITTLE_ENDIAN)) || \ + defined(__ARMEB__) || \ + defined(__THUMBEB__) || \ + defined(__AARCH64EB__) || \ + defined(_MIPSEB) || \ + defined(__MIPSEB) || \ + defined(__MIPSEB__) +# undef BOOST_ENDIAN_BIG_BYTE +# define BOOST_ENDIAN_BIG_BYTE BOOST_VERSION_NUMBER_AVAILABLE +# endif +#endif + +/* Built-in byte-swpped little-endian macros. + */ +#if !BOOST_ENDIAN_BIG_BYTE && !BOOST_ENDIAN_BIG_WORD && \ + !BOOST_ENDIAN_LITTLE_BYTE && !BOOST_ENDIAN_LITTLE_WORD +# if (defined(__LITTLE_ENDIAN__) && !defined(__BIG_ENDIAN__)) || \ + (defined(_LITTLE_ENDIAN) && !defined(_BIG_ENDIAN)) || \ + defined(__ARMEL__) || \ + defined(__THUMBEL__) || \ + defined(__AARCH64EL__) || \ + defined(_MIPSEL) || \ + defined(__MIPSEL) || \ + defined(__MIPSEL__) +# undef BOOST_ENDIAN_LITTLE_BYTE +# define BOOST_ENDIAN_LITTLE_BYTE BOOST_VERSION_NUMBER_AVAILABLE +# endif +#endif + +/* Some architectures are strictly one endianess (as opposed + * the current common bi-endianess). + */ +#if !BOOST_ENDIAN_BIG_BYTE && !BOOST_ENDIAN_BIG_WORD && \ + !BOOST_ENDIAN_LITTLE_BYTE && !BOOST_ENDIAN_LITTLE_WORD +# include <boost/predef/architecture.h> +# if BOOST_ARCH_M68K || \ + BOOST_ARCH_PARISK || \ + BOOST_ARCH_SPARC || \ + BOOST_ARCH_SYS370 || \ + BOOST_ARCH_SYS390 || \ + BOOST_ARCH_Z +# undef BOOST_ENDIAN_BIG_BYTE +# define BOOST_ENDIAN_BIG_BYTE BOOST_VERSION_NUMBER_AVAILABLE +# endif +# if BOOST_ARCH_AMD64 || \ + BOOST_ARCH_IA64 || \ + BOOST_ARCH_X86 || \ + BOOST_ARCH_BLACKFIN +# undef BOOST_ENDIAN_LITTLE_BYTE +# define BOOST_ENDIAN_LITTLE_BYTE BOOST_VERSION_NUMBER_AVAILABLE +# endif +#endif + +/* Windows on ARM, if not otherwise detected/specified, is always + * byte-swaped little-endian. + */ +#if !BOOST_ENDIAN_BIG_BYTE && !BOOST_ENDIAN_BIG_WORD && \ + !BOOST_ENDIAN_LITTLE_BYTE && !BOOST_ENDIAN_LITTLE_WORD +# if BOOST_ARCH_ARM +# include <boost/predef/os/windows.h> +# if BOOST_OS_WINDOWS +# undef BOOST_ENDIAN_LITTLE_BYTE +# define BOOST_ENDIAN_LITTLE_BYTE BOOST_VERSION_NUMBER_AVAILABLE +# endif +# endif +#endif + +#if BOOST_ENDIAN_BIG_BYTE +# define BOOST_ENDIAN_BIG_BYTE_AVAILABLE +#endif +#if BOOST_ENDIAN_BIG_WORD +# define BOOST_ENDIAN_BIG_WORD_BYTE_AVAILABLE +#endif +#if BOOST_ENDIAN_LITTLE_BYTE +# define BOOST_ENDIAN_LITTLE_BYTE_AVAILABLE +#endif +#if BOOST_ENDIAN_LITTLE_WORD +# define BOOST_ENDIAN_LITTLE_WORD_BYTE_AVAILABLE +#endif + +#define BOOST_ENDIAN_BIG_BYTE_NAME "Byte-Swapped Big-Endian" +#define BOOST_ENDIAN_BIG_WORD_NAME "Word-Swapped Big-Endian" +#define BOOST_ENDIAN_LITTLE_BYTE_NAME "Byte-Swapped Little-Endian" +#define BOOST_ENDIAN_LITTLE_WORD_NAME "Word-Swapped Little-Endian" + +#include <boost/predef/detail/test.h> +BOOST_PREDEF_DECLARE_TEST(BOOST_ENDIAN_BIG_BYTE,BOOST_ENDIAN_BIG_BYTE_NAME) + +#include <boost/predef/detail/test.h> +BOOST_PREDEF_DECLARE_TEST(BOOST_ENDIAN_BIG_WORD,BOOST_ENDIAN_BIG_WORD_NAME) + +#include <boost/predef/detail/test.h> +BOOST_PREDEF_DECLARE_TEST(BOOST_ENDIAN_LITTLE_BYTE,BOOST_ENDIAN_LITTLE_BYTE_NAME) + +#include <boost/predef/detail/test.h> +BOOST_PREDEF_DECLARE_TEST(BOOST_ENDIAN_LITTLE_WORD,BOOST_ENDIAN_LITTLE_WORD_NAME) + + +#endif |