| /* |
| --------------------------------------------------------------------------- |
| Copyright (c) 1998-2013, Brian Gladman, Worcester, UK. All rights reserved. |
| |
| The redistribution and use of this software (with or without changes) |
| is allowed without the payment of fees or royalties provided that: |
| |
| source code distributions include the above copyright notice, this |
| list of conditions and the following disclaimer; |
| |
| binary distributions include the above copyright notice, this list |
| of conditions and the following disclaimer in their documentation. |
| |
| This software is provided 'as is' with no explicit or implied warranties |
| in respect of its operation, including, but not limited to, correctness |
| and fitness for purpose. |
| --------------------------------------------------------------------------- |
| Issue Date: 20/12/2007 |
| Changes for ARM 9/9/2010 [Downstream relative to Gladman's GitHub, upstream to Qt] |
| */ |
| |
| #ifndef _BRG_ENDIAN_H |
| #define _BRG_ENDIAN_H |
| |
| #define IS_BIG_ENDIAN 4321 /* byte 0 is most significant (mc68k) */ |
| #define IS_LITTLE_ENDIAN 1234 /* byte 0 is least significant (i386) */ |
| |
| /* This is needed when using clang with MSVC to avoid including */ |
| /* endian.h and byteswap.h which are not present on Windows */ |
| #if defined( _MSC_VER ) && defined( __clang__ ) |
| # undef __GNUC__ |
| #endif |
| |
| /* Include files where endian defines and byteswap functions may reside */ |
| #if defined( __sun ) |
| # include <sys/isa_defs.h> |
| #elif defined( __FreeBSD__ ) || defined( __OpenBSD__ ) || defined( __NetBSD__ ) |
| # include <sys/endian.h> |
| #elif defined( BSD ) && ( BSD >= 199103 ) || defined( __APPLE__ ) || \ |
| defined( __CYGWIN32__ ) || defined( __DJGPP__ ) || defined( __osf__ ) |
| # include <machine/endian.h> |
| #elif defined( __linux__ ) || defined( __GNUC__ ) || defined( __GNU_LIBRARY__ ) |
| # if !defined( __MINGW32__ ) && !defined( _AIX ) && !defined(Q_OS_QNX) |
| # include <endian.h> |
| # if !defined( __BEOS__ ) && !defined(Q_OS_RTEMS) |
| # include <byteswap.h> |
| # endif |
| # endif |
| #endif |
| |
| /* Now attempt to set the define for platform byte order using any */ |
| /* of the four forms SYMBOL, _SYMBOL, __SYMBOL & __SYMBOL__, which */ |
| /* seem to encompass most endian symbol definitions */ |
| |
| #if defined( BIG_ENDIAN ) && defined( LITTLE_ENDIAN ) |
| # if defined( BYTE_ORDER ) && BYTE_ORDER == BIG_ENDIAN |
| # define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN |
| # elif defined( BYTE_ORDER ) && BYTE_ORDER == LITTLE_ENDIAN |
| # define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN |
| # endif |
| #elif defined( BIG_ENDIAN ) |
| # define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN |
| #elif defined( LITTLE_ENDIAN ) |
| # define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN |
| #endif |
| |
| #if defined( _BIG_ENDIAN ) && defined( _LITTLE_ENDIAN ) |
| # if defined( _BYTE_ORDER ) && _BYTE_ORDER == _BIG_ENDIAN |
| # define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN |
| # elif defined( _BYTE_ORDER ) && _BYTE_ORDER == _LITTLE_ENDIAN |
| # define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN |
| # endif |
| #elif defined( _BIG_ENDIAN ) |
| # define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN |
| #elif defined( _LITTLE_ENDIAN ) |
| # define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN |
| #endif |
| |
| #if defined( __BIG_ENDIAN ) && defined( __LITTLE_ENDIAN ) |
| # if defined( __BYTE_ORDER ) && __BYTE_ORDER == __BIG_ENDIAN |
| # define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN |
| # elif defined( __BYTE_ORDER ) && __BYTE_ORDER == __LITTLE_ENDIAN |
| # define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN |
| # endif |
| #elif defined( __BIG_ENDIAN ) |
| # define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN |
| #elif defined( __LITTLE_ENDIAN ) |
| # define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN |
| #endif |
| |
| #if defined( __BIG_ENDIAN__ ) && defined( __LITTLE_ENDIAN__ ) |
| # if defined( __BYTE_ORDER__ ) && __BYTE_ORDER__ == __BIG_ENDIAN__ |
| # define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN |
| # elif defined( __BYTE_ORDER__ ) && __BYTE_ORDER__ == __LITTLE_ENDIAN__ |
| # define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN |
| # endif |
| #elif defined( __BIG_ENDIAN__ ) |
| # define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN |
| #elif defined( __LITTLE_ENDIAN__ ) |
| # define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN |
| #endif |
| |
| /* if the platform byte order could not be determined, then try to */ |
| /* set this define using common machine defines */ |
| #if !defined(PLATFORM_BYTE_ORDER) |
| |
| #if defined( __alpha__ ) || defined( __alpha ) || defined( i386 ) || \ |
| defined( __i386__ ) || defined( _M_I86 ) || defined( _M_IX86 ) || \ |
| defined( __OS2__ ) || defined( sun386 ) || defined( __TURBOC__ ) || \ |
| defined( vax ) || defined( vms ) || defined( VMS ) || \ |
| defined( __VMS ) || defined( _M_X64 ) |
| # define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN |
| |
| #elif defined( AMIGA ) || defined( applec ) || defined( __AS400__ ) || \ |
| defined( _CRAY ) || defined( __hppa ) || defined( __hp9000 ) || \ |
| defined( ibm370 ) || defined( mc68000 ) || defined( m68k ) || \ |
| defined( __MRC__ ) || defined( __MVS__ ) || defined( __MWERKS__ ) || \ |
| defined( sparc ) || defined( __sparc) || defined( SYMANTEC_C ) || \ |
| defined( __VOS__ ) || defined( __TIGCC__ ) || defined( __TANDEM ) || \ |
| defined( THINK_C ) || defined( __VMCMS__ ) || defined( _AIX ) |
| # define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN |
| |
| #elif defined(__arm__) |
| # ifdef __BIG_ENDIAN |
| # define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN |
| # else |
| # define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN |
| # endif |
| #elif 1 /* **** EDIT HERE IF NECESSARY **** */ |
| # define PLATFORM_BYTE_ORDER IS_LITTLE_ENDIAN |
| #elif 0 /* **** EDIT HERE IF NECESSARY **** */ |
| # define PLATFORM_BYTE_ORDER IS_BIG_ENDIAN |
| #else |
| # error Please edit lines 129 or 131 in brg_endian.h to set the platform byte order |
| #endif |
| |
| #endif |
| |
| #endif |