75 lines
2.0 KiB
C++
75 lines
2.0 KiB
C++
/// @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"
|