84 lines
2.1 KiB
C++
84 lines
2.1 KiB
C++
/*
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streflop: STandalone REproducible FLOating-Point
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Copyright 2006 Nicolas Brodu
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2012 Mark Vejvoda
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Code released according to the GNU Lesser General Public License
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Heavily relies on GNU Libm, itself depending on netlib fplibm, GNU MP, and IBM MP lib.
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Uses SoftFloat too.
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Please read the history and copyright information in the documentation provided with the source code
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*/
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#ifndef STREFLOP_SYSTEM_H
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#define STREFLOP_SYSTEM_H
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#if defined(STREFLOP_SSE) || defined(STREFLOP_X87)
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// SSE or X87 machines are little-endian
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#define __BYTE_ORDER 1234
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#define __FLOAT_WORD_ORDER 1234
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// Softfloat or other unknown FPU.
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#else
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#define __BYTE_ORDER 1234
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#define __FLOAT_WORD_ORDER 1234
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/*
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#include <endian.h>
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#if !defined(__FLOAT_WORD_ORDER) || !defined(__BYTE_ORDER)
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#undef __FLOAT_WORD_ORDER
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#undef __BYTE_ORDER
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#if defined(_LITTLE_ENDIAN) || defined(__LITTLE_ENDIAN) || defined(LITTLE_ENDIAN)
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// avoid conflicting defs
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#undef _LITTLE_ENDIAN
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#undef LITTLE_ENDIAN
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#undef __LITTLE_ENDIAN
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#undef __BYTE_ORDER
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#define __BYTE_ORDER 1234
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#define __FLOAT_WORD_ORDER 1234
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#elif defined(_BIG_ENDIAN) || defined(__BIG_ENDIAN) || defined(BIG_ENDIAN)
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// avoid conflicting defs
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#undef _BIG_ENDIAN
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#undef BIG_ENDIAN
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#undef __BIG_ENDIAN
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#undef __BYTE_ORDER
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#define __BYTE_ORDER 4321
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#define __FLOAT_WORD_ORDER 4321
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#else
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// Unfortunately, the endianity for the compilation target cannot be deduced at compile time
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// => preprocessor #define is necessary, possibly with heuristics
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#error Could not detect endianity.
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#endif
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#endif
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*/
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#endif
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#include "IntegerTypes.h"
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// Avoid conflict with system types, if any
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namespace streflop {
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// Use the assumption above for char
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typedef char int8_t;
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typedef unsigned char uint8_t;
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// Now "run" the meta-program to define the types
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// Entry point is (unsigned) short, then all types above are tried till the size match
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typedef SizedInteger<16>::Type int16_t;
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typedef SizedUnsignedInteger<16>::Type uint16_t;
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typedef SizedInteger<32>::Type int32_t;
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typedef SizedUnsignedInteger<32>::Type uint32_t;
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typedef SizedInteger<64>::Type int64_t;
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typedef SizedUnsignedInteger<64>::Type uint64_t;
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}
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#endif
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