75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
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/// @ref ext_scalar_ulp
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/// @file glm/ext/scalar_ulp.hpp
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///
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/// @defgroup ext_scalar_ulp GLM_EXT_scalar_ulp
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/// @ingroup ext
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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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///
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/// Include <glm/ext/scalar_ulp.hpp> to use the features of this extension.
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///
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/// @see ext_vector_ulp
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/// @see ext_scalar_relational
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#pragma once
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// Dependencies
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#include "../ext/scalar_int_sized.hpp"
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#include "../common.hpp"
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#include "../detail/qualifier.hpp"
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#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
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# pragma message("GLM: GLM_EXT_scalar_ulp extension included")
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#endif
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namespace glm
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{
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/// Return the next ULP value(s) after the input value(s).
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///
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/// @tparam genType A floating-point scalar type.
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///
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/// @see ext_scalar_ulp
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template<typename genType>
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GLM_FUNC_DECL genType nextFloat(genType x);
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/// Return the previous ULP value(s) before the input value(s).
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///
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/// @tparam genType A floating-point scalar type.
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///
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/// @see ext_scalar_ulp
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template<typename genType>
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GLM_FUNC_DECL genType prevFloat(genType x);
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/// Return the value(s) ULP distance after the input value(s).
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///
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/// @tparam genType A floating-point scalar type.
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///
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/// @see ext_scalar_ulp
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template<typename genType>
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GLM_FUNC_DECL genType nextFloat(genType x, int ULPs);
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/// Return the value(s) ULP distance before the input value(s).
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///
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/// @tparam genType A floating-point scalar type.
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///
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/// @see ext_scalar_ulp
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template<typename genType>
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GLM_FUNC_DECL genType prevFloat(genType x, int ULPs);
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/// Return the distance in the number of ULP between 2 single-precision floating-point scalars.
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///
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/// @see ext_scalar_ulp
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GLM_FUNC_DECL int floatDistance(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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///
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/// @see ext_scalar_ulp
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GLM_FUNC_DECL int64 floatDistance(double x, double y);
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/// @}
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}//namespace glm
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#include "scalar_ulp.inl"
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