GLM_GTX_ulp: Accuracy measurement

Functions
template<typename T >
uint	float_distance (T const &x, T const &y)
template<typename T , template< typename > class vecType>
vecType< uint >	float_distance (vecType< T > const &x, vecType< T > const &y)
template<typename genType >
genType	next_float (genType const &x)
template<typename genType >
genType	next_float (genType const &x, uint const &Distance)
template<typename genType >
genType	prev_float (genType const &x)
template<typename genType >
genType	prev_float (genType const &x, uint const &Distance)

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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. <glm/gtx/ulp.hpp> need to be included to use these functionalities.

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Function Documentation

uint glm::float_distance	(	T const &	x,
		T const &	y
	)

Return the distance in the number of ULP between 2 scalars.

From GLM_GTX_ulp extension.

vecType<uint> glm::float_distance	(	vecType< T > const &	x,
		vecType< T > const &	y
	)

Return the distance in the number of ULP between 2 vectors.

From GLM_GTX_ulp extension.

genType glm::next_float

(

genType const &

x

)

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

From GLM_GTX_ulp extension.

genType glm::next_float	(	genType const &	x,
		uint const &	Distance
	)

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

From GLM_GTX_ulp extension.

genType glm::prev_float

(

genType const &

x

)

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

From GLM_GTX_ulp extension.

genType glm::prev_float	(	genType const &	x,
		uint const &	Distance
	)

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

From GLM_GTX_ulp extension.