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authorThales Lima Oliveira <thaleslima.ufu@gmail.com>2020-07-08 12:05:44 -0300
committerThales Lima Oliveira <thaleslima.ufu@gmail.com>2020-07-08 12:05:44 -0300
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+/// @ref ext_scalar_ulp
+/// @file glm/ext/scalar_ulp.hpp
+///
+/// @defgroup ext_scalar_ulp GLM_EXT_scalar_ulp
+/// @ingroup ext
+///
+/// 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 ext_vector_ulp
+/// @see ext_scalar_relational
+
+#pragma once
+
+// Dependencies
+#include "../ext/scalar_int_sized.hpp"
+#include "../common.hpp"
+#include "../detail/qualifier.hpp"
+
+#if GLM_MESSAGES == GLM_ENABLE && !defined(GLM_EXT_INCLUDED)
+# pragma message("GLM: GLM_EXT_scalar_ulp extension included")
+#endif
+
+namespace glm
+{
+ /// Return the next ULP value(s) after the input value(s).
+ ///
+ /// @tparam genType A floating-point scalar type.
+ ///
+ /// @see ext_scalar_ulp
+ template<typename genType>
+ GLM_FUNC_DECL genType nextFloat(genType x);
+
+ /// Return the previous ULP value(s) before the input value(s).
+ ///
+ /// @tparam genType A floating-point scalar type.
+ ///
+ /// @see ext_scalar_ulp
+ template<typename genType>
+ GLM_FUNC_DECL genType prevFloat(genType x);
+
+ /// Return the value(s) ULP distance after the input value(s).
+ ///
+ /// @tparam genType A floating-point scalar type.
+ ///
+ /// @see ext_scalar_ulp
+ template<typename genType>
+ GLM_FUNC_DECL genType nextFloat(genType x, int ULPs);
+
+ /// Return the value(s) ULP distance before the input value(s).
+ ///
+ /// @tparam genType A floating-point scalar type.
+ ///
+ /// @see ext_scalar_ulp
+ template<typename genType>
+ GLM_FUNC_DECL genType prevFloat(genType x, int ULPs);
+
+ /// Return the distance in the number of ULP between 2 single-precision floating-point scalars.
+ ///
+ /// @see ext_scalar_ulp
+ GLM_FUNC_DECL int floatDistance(float x, float y);
+
+ /// Return the distance in the number of ULP between 2 double-precision floating-point scalars.
+ ///
+ /// @see ext_scalar_ulp
+ GLM_FUNC_DECL int64 floatDistance(double x, double y);
+
+ /// @}
+}//namespace glm
+
+#include "scalar_ulp.inl"