75 lines
2.3 KiB
C++
75 lines
2.3 KiB
C++
/// @ref gtc_ulp
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/// @file glm/gtc/ulp.hpp
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///
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/// @see core (dependence)
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///
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/// @defgroup gtc_ulp GLM_GTC_ulp
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/// @ingroup gtc
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///
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/// Include <glm/gtc/ulp.hpp> to use the features of this extension.
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///
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/// Allow the measurement of the accuracy of a function against a reference
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/// implementation. This extension works on floating-point data and provide results
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/// in ULP.
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#pragma once
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// Dependencies
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#include "../gtc/constants.hpp"
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#include "../ext/vector_relational.hpp"
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#include "../ext/scalar_int_sized.hpp"
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#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
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# pragma message("GLM: GLM_GTC_ulp extension included")
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#endif
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namespace glm
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{
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/// @addtogroup gtc_ulp
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/// @{
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/// Return the next ULP value(s) after the input value(s).
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/// @see gtc_ulp
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template<typename genType>
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GLM_FUNC_DECL genType next_float(genType const& x);
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/// Return the previous ULP value(s) before the input value(s).
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/// @see gtc_ulp
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template<typename genType>
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GLM_FUNC_DECL genType prev_float(genType const& x);
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/// Return the value(s) ULP distance after the input value(s).
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/// @see gtc_ulp
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template<typename genType>
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GLM_FUNC_DECL genType next_float(genType const& x, int DistanceULPs);
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/// Return the value(s) ULP distance before the input value(s).
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/// @see gtc_ulp
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template<typename genType>
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GLM_FUNC_DECL genType prev_float(genType const& x, int DistanceULPs);
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/// Return the distance in the number of ULP between 2 single-precision floating-point scalars.
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/// @see gtc_ulp
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template<typename T>
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GLM_FUNC_DECL int float_distance(float x, float y);
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/// Return the distance in the number of ULP between 2 double-precision floating-point scalars.
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/// @see gtc_ulp
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template<typename T>
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GLM_FUNC_DECL int64 float_distance(double x, double y);
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/// Return the distance in the number of ULP between single-precision floating-point 2 vectors.
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/// @see gtc_ulp
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template<length_t L, qualifier Q>
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GLM_FUNC_DECL vec<L, int, Q> float_distance(vec<L, float, Q> const& x, vec<L, float, Q> const& y);
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/// Return the distance in the number of ULP between double-precision floating-point 2 vectors.
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/// @see gtc_ulp
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template<length_t L, qualifier Q>
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GLM_FUNC_DECL vec<L, int64, Q> float_distance(vec<L, double, Q> const& x, vec<L, double, Q> const& y);
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/// @}
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}// namespace glm
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#include "ulp.inl"
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