GLM_EXT_scalar_ulp

Functions
GLM_FUNC_DECL int64	floatDistance (double x, double y)
	Return the distance in the number of ULP between 2 double-precision floating-point scalars. More...
GLM_FUNC_DECL int	floatDistance (float x, float y)
	Return the distance in the number of ULP between 2 single-precision floating-point scalars. More...
template<typename genType >
GLM_FUNC_DECL genType	nextFloat (genType x)
	Return the next ULP value(s) after the input value(s). More...
template<typename genType >
GLM_FUNC_DECL genType	nextFloat (genType x, int ULPs)
	Return the value(s) ULP distance after the input value(s). More...
template<typename genType >
GLM_FUNC_DECL genType	prevFloat (genType x)
	Return the previous ULP value(s) before the input value(s). More...
template<typename genType >
GLM_FUNC_DECL genType	prevFloat (genType x, int ULPs)
	Return the value(s) ULP distance before the input value(s). More...

Detailed Description

Allow the measurement of the accuracy of a function against a reference implementation. This extension works on floating-point data and provide results in ULP.

Include <glm/ext/scalar_ulp.hpp> to use the features of this extension.

See also

GLM_EXT_vector_ulp

GLM_EXT_scalar_relational

Function Documentation

floatDistance() [1/2]

GLM_FUNC_DECL int64 glm::floatDistance	(	double	x,
		double	y
	)

Return the distance in the number of ULP between 2 double-precision floating-point scalars.

See also

GLM_EXT_scalar_ulp

floatDistance() [2/2]

GLM_FUNC_DECL int glm::floatDistance	(	float	x,
		float	y
	)

Return the distance in the number of ULP between 2 single-precision floating-point scalars.

See also

GLM_EXT_scalar_ulp

nextFloat() [1/2]

GLM_FUNC_DECL genType glm::nextFloat

(

genType

x

)

Return the next ULP value(s) after the input value(s).

Template Parameters

genType

A floating-point scalar type.

See also

GLM_EXT_scalar_ulp

nextFloat() [2/2]

GLM_FUNC_DECL genType glm::nextFloat	(	genType	x,
		int	ULPs
	)

Return the value(s) ULP distance after the input value(s).

Template Parameters

genType

A floating-point scalar type.

See also

GLM_EXT_scalar_ulp

prevFloat() [1/2]

GLM_FUNC_DECL genType glm::prevFloat

(

genType

x

)

Return the previous ULP value(s) before the input value(s).

Template Parameters

genType

A floating-point scalar type.

See also

GLM_EXT_scalar_ulp

prevFloat() [2/2]

GLM_FUNC_DECL genType glm::prevFloat	(	genType	x,
		int	ULPs
	)

Return the value(s) ULP distance before the input value(s).

Template Parameters

genType

A floating-point scalar type.

See also

GLM_EXT_scalar_ulp