MakeSigned.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreTypes.h"
 
/**
 * Traits class which gets the signed version of an integer type.
 */
template <typename T>
struct TMakeSigned
{
    static_assert(sizeof(T) == 0, "Unsupported type in TMakeSigned<T>.");
};
 
template <typename T> struct TMakeSigned<const          T> { using Type = const          typename TMakeSigned<T>::Type; };
template <typename T> struct TMakeSigned<      volatile T> { using Type =       volatile typename TMakeSigned<T>::Type; };
template <typename T> struct TMakeSigned<const volatile T> { using Type = const volatile typename TMakeSigned<T>::Type; };
 
template <> struct TMakeSigned<int8  > { using Type = int8;  };
template <> struct TMakeSigned<uint8 > { using Type = int8;  };
template <> struct TMakeSigned<int16 > { using Type = int16; };
template <> struct TMakeSigned<uint16> { using Type = int16; };
template <> struct TMakeSigned<int32 > { using Type = int32; };
template <> struct TMakeSigned<uint32> { using Type = int32; };
template <> struct TMakeSigned<int64 > { using Type = int64; };
template <> struct TMakeSigned<uint64> { using Type = int64; };