ContainerElementTypeCompatibility.h

Go to the documentation of this file.

// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "CoreTypes.h"
#include "Templates/UnrealTypeTraits.h"
 
template <typename InElementType>
struct TContainerElementTypeCompatibility
{
    typedef InElementType ReinterpretType;
    typedef InElementType CopyFromOtherType;
 
    template <typename IterBeginType, typename IterEndType, typename OperatorType = InElementType&(*)(IterBeginType&)>
    static void ReinterpretRange(IterBeginType Iter, IterEndType IterEnd, OperatorType Operator = [](IterBeginType& InIt) -> InElementType& { return *InIt; })
    {
    }
 
    template <typename IterBeginType, typename IterEndType, typename SizeType, typename OperatorType = InElementType & (*)(IterBeginType&)>
    static void ReinterpretRangeContiguous(IterBeginType Iter, IterEndType IterEnd, SizeType Size, OperatorType Operator = [](IterBeginType& InIt) -> InElementType& { return *InIt; })
    {
    }
 
    static constexpr void CopyingFromOtherType() {}
};
 
template <typename ElementType>
constexpr bool TIsContainerElementTypeReinterpretable_V = !std::is_same_v<typename TContainerElementTypeCompatibility<ElementType>::ReinterpretType, ElementType>;
 
template <typename ElementType>
struct UE_DEPRECATED(5.4, "TIsContainerElementTypeReinterpretable has been deprecated - please use TIsContainerElementTypeReinterpretable_V instead") TIsContainerElementTypeReinterpretable
{
    enum { Value = TIsContainerElementTypeReinterpretable_V<ElementType> };
};
 
template <typename ElementType>
constexpr bool TIsContainerElementTypeCopyable_V = !std::is_same_v<typename TContainerElementTypeCompatibility<ElementType>::CopyFromOtherType, ElementType>;
 
template <typename ElementType>
struct UE_DEPRECATED(5.4, "TIsContainerElementTypeCopyable has been deprecated - please use TIsContainerElementTypeCopyable_V instead") TIsContainerElementTypeCopyable
{
    enum { Value = TIsContainerElementTypeCopyable_V<ElementType> };
};