GLM_GTC_ulp

Functions
GLM_FUNC_DECL int64	float_distance (double x, double y)
	Return the distance in the number of ULP between 2 double-precision floating-point scalars. More...
GLM_FUNC_DECL int	float_distance (float x, float y)
	Return the distance in the number of ULP between 2 single-precision floating-point scalars. More...
template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, int64, Q >	float_distance (vec< L, double, Q > const &x, vec< L, double, Q > const &y)
	Return the distance in the number of ULP between 2 double-precision floating-point scalars. More...
template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, int, Q >	float_distance (vec< L, float, Q > const &x, vec< L, float, Q > const &y)
	Return the distance in the number of ULP between 2 single-precision floating-point scalars. More...
template<typename genType >
GLM_FUNC_DECL genType	next_float (genType x)
	Return the next ULP value(s) after the input value(s). More...
template<typename genType >
GLM_FUNC_DECL genType	next_float (genType x, int ULPs)
	Return the value(s) ULP distance after the input value(s). More...
template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, T, Q >	next_float (vec< L, T, Q > const &x)
	Return the next ULP value(s) after the input value(s). More...
template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, T, Q >	next_float (vec< L, T, Q > const &x, int ULPs)
	Return the value(s) ULP distance after the input value(s). More...
template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, T, Q >	next_float (vec< L, T, Q > const &x, vec< L, int, Q > const &ULPs)
	Return the value(s) ULP distance after the input value(s). More...
template<typename genType >
GLM_FUNC_DECL genType	prev_float (genType x)
	Return the previous ULP value(s) before the input value(s). More...
template<typename genType >
GLM_FUNC_DECL genType	prev_float (genType x, int ULPs)
	Return the value(s) ULP distance before the input value(s). More...
template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, T, Q >	prev_float (vec< L, T, Q > const &x)
	Return the previous ULP value(s) before the input value(s). More...
template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, T, Q >	prev_float (vec< L, T, Q > const &x, int ULPs)
	Return the value(s) ULP distance before the input value(s). More...
template<length_t L, typename T , qualifier Q>
GLM_FUNC_DECL vec< L, T, Q >	prev_float (vec< L, T, Q > const &x, vec< L, int, Q > const &ULPs)
	Return the value(s) ULP distance before the input value(s). More...

Detailed Description

Include <glm/gtc/ulp.hpp> to use the features of this extension.

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.

Function Documentation

float_distance() [1/4]

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

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

See also

GLM_GTC_ulp

float_distance() [2/4]

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

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

See also

GLM_GTC_ulp

float_distance() [3/4]

GLM_FUNC_DECL vec<L, int64, Q> glm::float_distance	(	vec< L, double, Q > const &	x,
		vec< L, double, Q > const &	y
	)

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

Template Parameters

L	Integer between 1 and 4 included that qualify the dimension of the vector
Q	Value from qualifier enum

See also

GLM_GTC_ulp

float_distance() [4/4]

GLM_FUNC_DECL vec<L, int, Q> glm::float_distance	(	vec< L, float, Q > const &	x,
		vec< L, float, Q > const &	y
	)

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

Template Parameters

L	Integer between 1 and 4 included that qualify the dimension of the vector
Q	Value from qualifier enum

See also

GLM_GTC_ulp

next_float() [1/5]

GLM_FUNC_DECL genType glm::next_float

(

genType

x

)

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

Template Parameters

genType

A floating-point scalar type.

See also

GLM_GTC_ulp

next_float() [2/5]

GLM_FUNC_DECL genType glm::next_float	(	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_GTC_ulp

next_float() [3/5]

GLM_FUNC_DECL vec<L, T, Q> glm::next_float

(

vec< L, T, Q > const &

x

)

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

Template Parameters

L	Integer between 1 and 4 included that qualify the dimension of the vector
T	Floating-point
Q	Value from qualifier enum

See also

GLM_GTC_ulp

next_float() [4/5]

GLM_FUNC_DECL vec<L, T, Q> glm::next_float	(	vec< L, T, Q > const &	x,
		int	ULPs
	)

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

Template Parameters

L	Integer between 1 and 4 included that qualify the dimension of the vector
T	Floating-point
Q	Value from qualifier enum

See also

GLM_GTC_ulp

next_float() [5/5]

GLM_FUNC_DECL vec<L, T, Q> glm::next_float	(	vec< L, T, Q > const &	x,
		vec< L, int, Q > const &	ULPs
	)

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

Template Parameters

L	Integer between 1 and 4 included that qualify the dimension of the vector
T	Floating-point
Q	Value from qualifier enum

See also

GLM_GTC_ulp

prev_float() [1/5]

GLM_FUNC_DECL genType glm::prev_float

(

genType

x

)

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

Template Parameters

genType

A floating-point scalar type.

See also

GLM_GTC_ulp

prev_float() [2/5]

GLM_FUNC_DECL genType glm::prev_float	(	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_GTC_ulp

prev_float() [3/5]

GLM_FUNC_DECL vec<L, T, Q> glm::prev_float

(

vec< L, T, Q > const &

x

)

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

Template Parameters

L	Integer between 1 and 4 included that qualify the dimension of the vector
T	Floating-point
Q	Value from qualifier enum

See also

GLM_GTC_ulp

prev_float() [4/5]

GLM_FUNC_DECL vec<L, T, Q> glm::prev_float	(	vec< L, T, Q > const &	x,
		int	ULPs
	)

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

Template Parameters

L	Integer between 1 and 4 included that qualify the dimension of the vector
T	Floating-point
Q	Value from qualifier enum

See also

GLM_GTC_ulp

prev_float() [5/5]

GLM_FUNC_DECL vec<L, T, Q> glm::prev_float	(	vec< L, T, Q > const &	x,
		vec< L, int, Q > const &	ULPs
	)

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

Template Parameters

L	Integer between 1 and 4 included that qualify the dimension of the vector
T	Floating-point
Q	Value from qualifier enum

See also

GLM_GTC_ulp