Redcraft/Redcraft.Utility/Source/Public/Memory/PointerTraits.h

65 lines
2.2 KiB
C++

#pragma once
#include "CoreTypes.h"
NAMESPACE_REDCRAFT_BEGIN
NAMESPACE_MODULE_BEGIN(Redcraft)
NAMESPACE_MODULE_BEGIN(Utility)
/** The class template provides the standardized way to access certain properties of pointer-like types. */
template <typename>
struct TPointerTraits
{
static constexpr bool bIsPointer = false;
};
/** A specialization of TPointerTraits is provided for pointer types T*. */
template <typename T>
struct TPointerTraits<T*>
{
static constexpr bool bIsPointer = true;
using FPointerType = T*;
using FElementType = T;
static FORCEINLINE constexpr FElementType* ToAddress(FPointerType InPtr)
{
return InPtr;
}
};
/** A specialization of TPointerTraits is provided for array pointer types T(*)[]. */
template <typename T>
struct TPointerTraits<T(*)[]>
{
static constexpr bool bIsPointer = true;
using FPointerType = T(*)[];
using FElementType = T;
static FORCEINLINE constexpr FElementType* ToAddress(FPointerType InPtr)
{
return InPtr;
}
};
/** A specialization of TPointerTraits is provided for pointer-like type. */
#define DEFINE_TPointerTraits(TPtr) \
template <typename T> \
struct TPointerTraits<TPtr<T>> \
{ \
static constexpr bool bIsPointer = true; \
\
using FPointerType = TPtr<T>; \
using FElementType = TPtr<T>::FElementType; \
\
static FORCEINLINE constexpr FElementType* ToAddress(const FPointerType& InPtr) \
{ \
return InPtr.Get(); \
} \
};
NAMESPACE_MODULE_END(Utility)
NAMESPACE_MODULE_END(Redcraft)
NAMESPACE_REDCRAFT_END