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/* |
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largeint.h |
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|
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Header for 64 bit integer arithmetics library |
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|
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*/ |
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#ifndef _LARGEINT_H |
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#define _LARGEINT_H |
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#if __GNUC__ >=3 |
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#pragma GCC system_header |
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#endif |
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|
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#include <windows.h> |
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|
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#ifdef __cplusplus |
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extern "C" { |
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#endif |
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|
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#ifdef _HAVE_INT64 |
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#define _toi (__int64) |
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#define _toui (unsigned __int64) |
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#else |
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#error "64 bit integers not supported" |
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#endif |
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|
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/* |
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We don't let the compiler see the prototypes if we are compiling the |
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library because if it does it will choke on conflicting types in the |
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prototypes. |
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*/ |
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|
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#if defined(LARGEINT_PROTOS) || defined(__COMPILING_LARGEINT) |
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|
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#ifndef __COMPILING_LARGEINT |
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/* addition/subtraction */ |
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LARGE_INTEGER WINAPI LargeIntegerAdd (LARGE_INTEGER, LARGE_INTEGER); |
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LARGE_INTEGER WINAPI LargeIntegerSubtract (LARGE_INTEGER, LARGE_INTEGER); |
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|
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/* bit operations */ |
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LARGE_INTEGER WINAPI LargeIntegerArithmeticShift (LARGE_INTEGER, int); |
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LARGE_INTEGER WINAPI LargeIntegerShiftLeft (LARGE_INTEGER, int); |
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LARGE_INTEGER WINAPI LargeIntegerShiftRight (LARGE_INTEGER, int); |
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LARGE_INTEGER WINAPI LargeIntegerNegate (LARGE_INTEGER); |
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|
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/* conversion */ |
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LARGE_INTEGER WINAPI ConvertLongToLargeInteger (LONG); |
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LARGE_INTEGER WINAPI ConvertUlongToLargeInteger (ULONG); |
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|
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/* multiplication */ |
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LARGE_INTEGER WINAPI EnlargedIntegerMultiply (LONG, LONG); |
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LARGE_INTEGER WINAPI EnlargedUnsignedMultiply (ULONG, ULONG); |
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LARGE_INTEGER WINAPI ExtendedIntegerMultiply (LARGE_INTEGER, LONG); |
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/* FIXME: is this not part of largeint? */ |
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LARGE_INTEGER WINAPI LargeIntegerMultiply (LARGE_INTEGER, LARGE_INTEGER); |
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#endif /* __COMPILING_LARGEINT */ |
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|
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#else |
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|
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#define LargeIntegerAdd(a,b) (LARGE_INTEGER)(_toi(a) + _toi(b)) |
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#define LargeIntegerSubtract(a,b) (LARGE_INTEGER)(_toi(a) - _toi(b)) |
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#define LargeIntegerRightShift(i,n) (LARGE_INTEGER)(_toi(i) >> (n)) |
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#define LargeIntegerArithmeticShift LargeIntegerRightShift |
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#define LargeIntegerLeftShift(i,n) (LARGE_INTEGER)(_toi(i) << (n)) |
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#define LargeIntegerNegate(i) (LARGE_INTEGER)(- _toi(i)) |
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#define EnlargedIntegerMultiply(a,b) (LARGE_INTEGER)(_toi(a) * _toi(b)) |
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#define EnlargedUnsignedMultiply(a,b) (LARGE_INTEGER)(_toui(a) * _toui(b)) |
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#define ExtendedIntegerMultiply(a,b) (LARGE_INTEGER)(_toi(a) * _toi(b)) |
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/* FIXME: should this exist */ |
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#define LargeIntegerMultiply(a,b) (LARGE_INTEGER)(_toi(a) * _toi(b)) |
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#define ConvertLongToLargeInteger(l) (LARGE_INTEGER)(_toi(l)) |
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#define ConvertUlongToLargeInteger(ul) (LARGE_INTEGER)(_toui(ul)) |
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|
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#endif /* LARGEINT_PROTOS || __COMPILING_LARGEINT */ |
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|
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#ifndef __COMPILING_LARGEINT |
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/* division; no macros of these because of multiple expansion */ |
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LARGE_INTEGER WINAPI LargeIntegerDivide (LARGE_INTEGER, LARGE_INTEGER, PLARGE_INTEGER); |
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ULONG WINAPI EnlargedUnsignedDivide (ULARGE_INTEGER, ULONG, PULONG); |
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LARGE_INTEGER WINAPI ExtendedLargeIntegerDivide (LARGE_INTEGER, ULONG, PULONG); |
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LARGE_INTEGER WINAPI ExtendedMagicDivide (LARGE_INTEGER, LARGE_INTEGER, int); |
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#endif /* __COMPILING_LARGEINT */ |
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|
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#define LargeIntegerAnd(dest, src, m) \ |
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{ \ |
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dest._STRUCT_NAME(u.)LowPart = s._STRUCT_NAME(u.)LowPart & m._STRUCT_NAME(u.)LowPart; \ |
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dest._STRUCT_NAME(u.)HighPart = s._STRUCT_NAME(u.)HighPart & m._STRUCT_NAME(u.)HighPart; \ |
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} |
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|
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/* comparision */ |
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#define LargeIntegerGreaterThan(a,b) (_toi(a) > _toi(b)) |
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#define LargeIntegerGreaterThanOrEqual(a,b) (_toi(a) >= _toi(b)) |
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#define LargeIntegerEqualTo(a,b) (_toi(a) == _toi(b)) |
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#define LargeIntegerNotEqualTo(a,b) (_toi(a) != _toi(b)) |
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#define LargeIntegerLessThan(a,b) (_toi(a) < _toi(b)) |
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#define LargeIntegerLessThanOrEqualTo(a,b) (_toi(a) <= _toi(b)) |
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#define LargeIntegerGreaterThanZero(a) (_toi(a) > 0) |
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#define LargeIntegerGreaterOrEqualToZero(a) ((a)._STRUCT_NAME(u.)HighPart > 0) |
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#define LargeIntegerEqualToZero(a) !((a)._STRUCT_NAME(u.)LowPart | (a)._STRUCT_NAME(u.)HighPart) |
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#define LargeIntegerNotEqualToZero(a) ((a)._STRUCT_NAME(u.)LowPart | (a)._STRUCT_NAME(u.)HighPart) |
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#define LargeIntegerLessThanZero(a) ((a)._STRUCT_NAME(u.)HighPart < 0) |
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#define LargeIntegerLessOrEqualToZero(a) (_toi(a) <= 0) |
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|
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#ifndef __COMPILING_LARGEINT |
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#undef _toi |
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#undef _toui |
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#endif |
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|
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#ifdef __cplusplus |
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} |
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#endif |
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|
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#endif /* _LARGEINT_H */ |
