///////////////////////////////////////////////////////////////////////////////////
/// OpenGL Mathematics (glm.g-truc.net)
///
/// Copyright (c) 2005 - 2015 G-Truc Creation (www.g-truc.net)
/// Permission is hereby granted, free of charge, to any person obtaining a copy
/// of this software and associated documentation files (the "Software"), to deal
/// in the Software without restriction, including without limitation the rights
/// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
/// copies of the Software, and to permit persons to whom the Software is
/// furnished to do so, subject to the following conditions:
///
/// The above copyright notice and this permission notice shall be included in
/// all copies or substantial portions of the Software.
///
/// Restrictions:
///             By making use of the Software for military purposes, you choose to make
///             a Bunny unhappy.
///
/// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
/// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
/// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
/// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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///
/// @ref gtc_ulp
/// @file glm/gtc/ulp.hpp
/// @date 2011-02-21 / 2011-12-12
/// @author Christophe Riccio
///
/// @see core (dependence)
///
/// @defgroup gtc_ulp GLM_GTC_ulp
/// @ingroup gtc
///
/// @brief 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.
/// <glm/gtc/ulp.hpp> need to be included to use these features.
///////////////////////////////////////////////////////////////////////////////////

#pragma once

// Dependencies
#include "../detail/setup.hpp"
#include "../detail/precision.hpp"
#include "../detail/type_int.hpp"

#if(defined(GLM_MESSAGES) && !defined(GLM_EXT_INCLUDED))
#       pragma message("GLM: GLM_GTC_ulp extension included")
#endif

namespace glm
{
        /// @addtogroup gtc_ulp
        /// @{

        /// Return the next ULP value(s) after the input value(s).
        /// @see gtc_ulp
        template <typename genType>
        GLM_FUNC_DECL genType next_float(genType const & x);

        /// Return the previous ULP value(s) before the input value(s).
        /// @see gtc_ulp
        template <typename genType>
        GLM_FUNC_DECL genType prev_float(genType const & x);

        /// Return the value(s) ULP distance after the input value(s).
        /// @see gtc_ulp
        template <typename genType>
        GLM_FUNC_DECL genType next_float(genType const & x, uint const & Distance);

        /// Return the value(s) ULP distance before the input value(s).
        /// @see gtc_ulp
        template <typename genType>
        GLM_FUNC_DECL genType prev_float(genType const & x, uint const & Distance);
       
        /// Return the distance in the number of ULP between 2 scalars.
        /// @see gtc_ulp
        template <typename T>
        GLM_FUNC_DECL uint float_distance(T const & x, T const & y);

        /// Return the distance in the number of ULP between 2 vectors.
        /// @see gtc_ulp
        template<typename T, template<typename> class vecType>
        GLM_FUNC_DECL vecType<uint> float_distance(vecType<T> const & x, vecType<T> const & y);
       
        /// @}
}// namespace glm

#include "ulp.inl"