CxxUtils::fpcompare Namespace Reference

Namespace for the safe comparison functions. More...

Functions
bool	equal (double a, double b)
	Compare two FP numbers, working around x87 precision issues.
bool	equal (float a, float b)
	Compare two FP numbers, working around x87 precision issues.
bool	greater (double a, double b)
	Compare two FP numbers, working around x87 precision issues.
bool	greater (float a, float b)
	Compare two FP numbers, working around x87 precision issues.
bool	less (double a, double b)
	Compare two FP numbers, working around x87 precision issues.
bool	less (float a, float b)
	Compare two FP numbers, working around x87 precision issues.
bool	greater_equal (double a, double b)
	Compare two FP numbers, working around x87 precision issues.
bool	greater_equal (float a, float b)
	Compare two FP numbers, working around x87 precision issues.
bool	less_equal (double a, double b)
	Compare two FP numbers, working around x87 precision issues.
bool	less_equal (float a, float b)
	Compare two FP numbers, working around x87 precision issues.

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Detailed Description

Namespace for the safe comparison functions.

The functions in this namespace can be used to implement "safe" comparisons between floating point numbers in all circumstances.

See also:

plug-ins/include/FPCompare.h

$Revision$ $Date$

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Function Documentation

bool CxxUtils::fpcompare::equal	(	double	a,
		double	b
	)		[inline]

Compare two FP numbers, working around x87 precision issues.

Returns:

a == b

Definition at line 141 of file FPCompare.h.

References CXXUTILS_FPCOMPARE_VOLATILE.

Referenced by CxxUtils::fpcompare_fn::equalf::operator()(), and CxxUtils::fpcompare_fn::equal::operator()().

bool CxxUtils::fpcompare::equal	(	float	a,
		float	b
	)		[inline]

Compare two FP numbers, working around x87 precision issues.

Returns:

a == b

Definition at line 153 of file FPCompare.h.

References CXXUTILS_FPCOMPARE_VOLATILE.

bool CxxUtils::fpcompare::greater	(	float	a,
		float	b
	)		[inline]

Compare two FP numbers, working around x87 precision issues.

Returns:

a > b

Definition at line 177 of file FPCompare.h.

References CXXUTILS_FPCOMPARE_VOLATILE.

bool CxxUtils::fpcompare::greater	(	double	a,
		double	b
	)		[inline]

Compare two FP numbers, working around x87 precision issues.

Returns:

a > b

Definition at line 165 of file FPCompare.h.

References CXXUTILS_FPCOMPARE_VOLATILE.

Referenced by CxxUtils::fpcompare_fn::greaterf::operator()(), and CxxUtils::fpcompare_fn::greater::operator()().

bool CxxUtils::fpcompare::greater_equal	(	float	a,
		float	b
	)		[inline]

Compare two FP numbers, working around x87 precision issues.

Returns:

a >= b

Definition at line 225 of file FPCompare.h.

References CXXUTILS_FPCOMPARE_VOLATILE.

bool CxxUtils::fpcompare::greater_equal	(	double	a,
		double	b
	)		[inline]

Compare two FP numbers, working around x87 precision issues.

Returns:

a >= b

Definition at line 213 of file FPCompare.h.

References CXXUTILS_FPCOMPARE_VOLATILE.

Referenced by CxxUtils::fpcompare_fn::greater_equalf::operator()(), and CxxUtils::fpcompare_fn::greater_equal::operator()().

bool CxxUtils::fpcompare::less	(	double	a,
		double	b
	)		[inline]

Compare two FP numbers, working around x87 precision issues.

Returns:

a < b

Definition at line 189 of file FPCompare.h.

References CXXUTILS_FPCOMPARE_VOLATILE.

Referenced by CxxUtils::fpcompare_fn::lessf::operator()(), and CxxUtils::fpcompare_fn::less::operator()().

bool CxxUtils::fpcompare::less	(	float	a,
		float	b
	)		[inline]

Compare two FP numbers, working around x87 precision issues.

Returns:

a < b

Definition at line 201 of file FPCompare.h.

References CXXUTILS_FPCOMPARE_VOLATILE.

bool CxxUtils::fpcompare::less_equal	(	double	a,
		double	b
	)		[inline]

Compare two FP numbers, working around x87 precision issues.

Returns:

a <= b

Definition at line 237 of file FPCompare.h.

References CXXUTILS_FPCOMPARE_VOLATILE.

Referenced by CxxUtils::fpcompare_fn::less_equalf::operator()(), and CxxUtils::fpcompare_fn::less_equal::operator()().

bool CxxUtils::fpcompare::less_equal	(	float	a,
		float	b
	)		[inline]

Compare two FP numbers, working around x87 precision issues.

Returns:

a <= b

Definition at line 249 of file FPCompare.h.

References CXXUTILS_FPCOMPARE_VOLATILE.