Redcraft/Redcraft.Utility/Source/Public/Templates/Utility.h

88 lines
1.7 KiB
C++

#pragma once
#include "CoreTypes.h"
#include "TypeTraits/TypeTraits.h"
NAMESPACE_REDCRAFT_BEGIN
NAMESPACE_MODULE_BEGIN(Redcraft)
NAMESPACE_MODULE_BEGIN(Utility)
template <typename T>
constexpr const T& AsConst(T& Ref)
{
return Ref;
}
template <typename T>
void AsConst(const T&& Ref) = delete;
template <typename T, size_t N>
constexpr const T(&AsConst(T(&Array)[N]))[N]
{
return Array;
}
template <typename T>
FORCEINLINE typename TRemoveReference<T>::Type&& MoveTemp(T&& Obj)
{
typedef typename TRemoveReference<T>::Type CastType;
static_assert(TIsLValueReference<T>::Value, "MoveTemp called on an rvalue.");
static_assert(!TIsConst<CastType>::Value, "MoveTemp called on a const object.");
return (CastType&&)Obj;
}
template <typename T>
FORCEINLINE T CopyTemp(T& Val)
{
return const_cast<const T&>(Val);
}
template <typename T>
FORCEINLINE T CopyTemp(const T& Val)
{
return Val;
}
template <typename T>
FORCEINLINE T&& CopyTemp(T&& Val)
{
return MoveTemp(Val);
}
template <typename T>
FORCEINLINE T&& Forward(typename TRemoveReference<T>::Type& Obj)
{
return (T&&)Obj;
}
template <typename T>
FORCEINLINE T&& Forward(typename TRemoveReference<T>::Type&& Obj)
{
return (T&&)Obj;
}
template <typename T> requires TIsMoveConstructible<T>::Value && TIsMoveAssignable<T>::Value
constexpr void Swap(T& A, T& B)
{
T Temp = MoveTemp(A);
A = MoveTemp(B);
B = MoveTemp(Temp);
}
template <typename T, typename U = T> requires TIsMoveConstructible<T>::Value && TIsAssignable<T&, U>::Value
constexpr T Exchange(T& A, U&& B)
{
T Temp = MoveTemp(A);
A = Forward<U>(B);
return Temp;
}
template <typename T>
T&& DeclVal();
NAMESPACE_MODULE_END(Utility)
NAMESPACE_MODULE_END(Redcraft)
NAMESPACE_REDCRAFT_END