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fix(iterator): fix behavior when TIteratorElement or TIteratorPointer is invalid

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Redstone1024 2024-12-14 16:09:35 +08:00
parent c73fc7620d
commit a55f03fea0
1 changed files with 7 additions and 4 deletions
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11
Redcraft.Utility/Source/Public/Iterator/Utility.h
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@ -12,11 +12,14 @@ NAMESPACE_PRIVATE_BEGIN
template <typename T> using TWithReference = T&;
template <typename I> struct TIteratorElementImpl { using Type = typename I::ElementType; };
template <typename T> struct TIteratorElementImpl<T*> { using Type = TRemoveCV<T>; };
template <typename I> struct TIteratorElementImpl { };
template <typename T> struct TIteratorElementImpl<T*> { using Type = TRemoveCV<T>; };
template <typename I> struct TIteratorPointerImpl { using Type = void; };
template <typename T> struct TIteratorPointerImpl<T*> { using Type = T*; };
template <typename I> requires (requires { typename I::ElementType; })
struct TIteratorElementImpl<I> { using Type = typename I::ElementType; };
template <typename I> struct TIteratorPointerImpl { };
template <typename T> struct TIteratorPointerImpl<T*> { using Type = T*; };
template <typename I> requires (requires(I& Iter) { { Iter.operator->() } -> CPointer; })
struct TIteratorPointerImpl<I> { using Type = decltype(DeclVal<I&>().operator->()); };