Greater.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreTypes.h"
#include "UnrealTemplate.h"
 
/**
 * Binary predicate class for sorting elements in reverse order.  Assumes < operator is defined for the template type.
 *
 * See: http://en.cppreference.com/w/cpp/utility/functional/greater
 */
template <typename T = void>
struct TGreater
{
    FORCEINLINE bool operator()(const T& A, const T& B) const
    {
        return B < A;
    }
};
 
template <>
struct TGreater<void>
{
    template <typename T, typename U>
    FORCEINLINE bool operator()(T&& A, U&& B) const
    {
        return Forward<U>(B) < Forward<T>(A);
    }
};