Functors.hpp

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// This code is based on Jet framework.
// Copyright (c) 2018 Doyub Kim
// CubbyFlow is voxel-based fluid simulation engine for computer games.
// Copyright (c) 2020 CubbyFlow Team
// Core Part: Chris Ohk, Junwoo Hwang, Jihong Sin, Seungwoo Yoo
// AI Part: Dongheon Cho, Minseo Kim
// We are making my contributions/submissions to this project solely in our
// personal capacity and are not conveying any rights to any intellectual
// property of any third parties.
 
#ifndef CUBBYFLOW_FUNCTORS_HPP
#define CUBBYFLOW_FUNCTORS_HPP
 
#include <limits>
 
namespace CubbyFlow
{
template <typename T>
struct NoOp
{
    constexpr T operator()(const T& a) const;
};
 
template <typename T, typename U>
struct TypeCast
{
    constexpr U operator()(const T& a) const;
};
 
template <typename T>
struct DoCeil
{
    constexpr T operator()(const T& a) const;
};
 
template <typename T>
struct DoFloor
{
    constexpr T operator()(const T& a) const;
};
 
template <typename T>
struct RMinus
{
    constexpr T operator()(const T& a, const T& b) const;
};
 
template <typename T>
struct RDivides
{
    constexpr T operator()(const T& a, const T& b) const;
};
 
template <typename T>
struct DoMin
{
    constexpr T operator()(const T& a, const T& b) const;
};
 
template <typename T>
struct DoMax
{
    constexpr T operator()(const T& a, const T& b) const;
};
 
template <typename T>
struct DoAbsMin
{
    constexpr T operator()(const T& a, const T& b) const;
};
 
template <typename T>
struct DoAbsMax
{
    constexpr T operator()(const T& a, const T& b) const;
};
 
template <typename T>
struct SimilarTo
{
    constexpr SimilarTo(
        double _tolerance = std::numeric_limits<double>::epsilon())
        : tolerance(_tolerance)
    {
        // Do nothing
    }
 
    constexpr bool operator()(const T& a, const T& b) const;
 
    double tolerance;
};
 
template <typename T>
struct DoClamp
{
    constexpr T operator()(const T& a, const T& low, const T& high) const;
};
}  // namespace CubbyFlow
 
#include <Core/Utils/Functors-Impl.hpp>
 
#endif