mirror of
https://github.com/Auties00/Reboot-Launcher.git
synced 2026-01-13 11:12:23 +01:00
<feat: New project structure>
<feat: New release>
This commit is contained in:
260
dependencies/reboot/Project Reboot 3.0/SparseArray.h
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260
dependencies/reboot/Project Reboot 3.0/SparseArray.h
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#pragma once
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#include "Array.h"
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#include "BitArray.h"
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#include "log.h"
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#define INDEX_NONE -1
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template <typename ElementType>
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union TSparseArrayElementOrListLink
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{
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TSparseArrayElementOrListLink(ElementType& InElement)
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: ElementData(InElement)
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{
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}
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TSparseArrayElementOrListLink(ElementType&& InElement)
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: ElementData(InElement)
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{
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}
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TSparseArrayElementOrListLink(int32 InPrevFree, int32 InNextFree)
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: PrevFreeIndex(InPrevFree)
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, NextFreeIndex(InNextFree)
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{
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}
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TSparseArrayElementOrListLink<ElementType> operator=(const TSparseArrayElementOrListLink<ElementType>& Other)
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{
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return TSparseArrayElementOrListLink(Other.NextFreeIndex, Other.PrevFreeIndex);
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}
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/** If the element is allocated, its value is stored here. */
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ElementType ElementData;
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struct
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{
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/** If the element isn't allocated, this is a link to the previous element in the array's free list. */
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int PrevFreeIndex;
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/** If the element isn't allocated, this is a link to the next element in the array's free list. */
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int NextFreeIndex;
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};
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};
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template <typename ArrayType>
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class TSparseArray
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{
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public:
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typedef TSparseArrayElementOrListLink<ArrayType> FSparseArrayElement;
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TArray<FSparseArrayElement> Data;
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TBitArray AllocationFlags;
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int32 FirstFreeIndex;
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int32 NumFreeIndices;
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FORCEINLINE int32 Num() const
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{
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return Data.Num() - NumFreeIndices;
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}
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class FBaseIterator
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{
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private:
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TSparseArray<ArrayType>& IteratedArray;
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TBitArray::FSetBitIterator BitArrayIt;
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public:
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FORCEINLINE FBaseIterator(const TSparseArray<ArrayType>& Array, const TBitArray::FSetBitIterator BitIterator)
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: IteratedArray(const_cast<TSparseArray<ArrayType>&>(Array))
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, BitArrayIt(const_cast<TBitArray::FSetBitIterator&>(BitIterator))
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{
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}
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FORCEINLINE explicit operator bool() const
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{
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return (bool)BitArrayIt;
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}
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FORCEINLINE TSparseArray<ArrayType>::FBaseIterator& operator++()
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{
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++BitArrayIt;
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return *this;
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}
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FORCEINLINE ArrayType& operator*()
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{
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return IteratedArray[BitArrayIt.GetIndex()].ElementData;
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}
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FORCEINLINE const ArrayType& operator*() const
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{
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return IteratedArray[BitArrayIt.GetIndex()].ElementData;
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}
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FORCEINLINE ArrayType* operator->()
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{
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return &IteratedArray[BitArrayIt.GetIndex()].ElementData;
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}
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FORCEINLINE const ArrayType* operator->() const
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{
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return &IteratedArray[BitArrayIt.GetIndex()].ElementData;
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}
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FORCEINLINE bool operator==(const TSparseArray<ArrayType>::FBaseIterator& Other) const
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{
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return BitArrayIt == Other.BitArrayIt;
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}
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FORCEINLINE bool operator!=(const TSparseArray<ArrayType>::FBaseIterator& Other) const
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{
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return BitArrayIt != Other.BitArrayIt;
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}
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FORCEINLINE int32 GetIndex() const
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{
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return BitArrayIt.GetIndex();
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}
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FORCEINLINE bool IsElementValid() const
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{
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return *BitArrayIt;
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}
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};
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public:
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FORCEINLINE TSparseArray<ArrayType>::FBaseIterator begin()
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{
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return TSparseArray<ArrayType>::FBaseIterator(*this, TBitArray::FSetBitIterator(AllocationFlags, 0));
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}
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FORCEINLINE const TSparseArray<ArrayType>::FBaseIterator begin() const
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{
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return TSparseArray<ArrayType>::FBaseIterator(*this, TBitArray::FSetBitIterator(AllocationFlags, 0));
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}
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FORCEINLINE TSparseArray<ArrayType>::FBaseIterator end()
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{
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return TSparseArray<ArrayType>::FBaseIterator(*this, TBitArray::FSetBitIterator(AllocationFlags));
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}
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FORCEINLINE const TSparseArray<ArrayType>::FBaseIterator end() const
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{
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return TSparseArray<ArrayType>::FBaseIterator(*this, TBitArray::FSetBitIterator(AllocationFlags));
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}
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FORCEINLINE FSparseArrayElement& operator[](uint32 Index)
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{
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return *(FSparseArrayElement*)&Data.at(Index).ElementData;
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}
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FORCEINLINE const FSparseArrayElement& operator[](uint32 Index) const
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{
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return *(const FSparseArrayElement*)&Data.at(Index).ElementData;
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}
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FORCEINLINE int32 GetNumFreeIndices() const
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{
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return NumFreeIndices;
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}
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FORCEINLINE int32 GetFirstFreeIndex() const
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{
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return FirstFreeIndex;
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}
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FORCEINLINE const TArray<FSparseArrayElement>& GetData() const
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{
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return Data;
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}
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FSparseArrayElement& GetData(int32 Index)
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{
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return *(FSparseArrayElement*)&Data.at(Index).ElementData;
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// return ((FSparseArrayElement*)Data.Data)[Index];
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}
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/** Accessor for the element or free list data. */
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const FSparseArrayElement& GetData(int32 Index) const
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{
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return *(const FSparseArrayElement*)&Data.at(Index).ElementData;
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// return ((FSparseArrayElement*)Data.Data)[Index];
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}
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FORCEINLINE const TBitArray& GetAllocationFlags() const
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{
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return AllocationFlags;
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}
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FORCEINLINE bool IsIndexValid(int32 IndexToCheck) const
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{
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return AllocationFlags.IsSet(IndexToCheck);
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}
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void RemoveAt(int32 Index, int32 Count = 1)
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{
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/* if (!TIsTriviallyDestructible<ElementType>::Value)
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{
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for (int32 It = Index, ItCount = Count; ItCount; ++It, --ItCount)
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{
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((ElementType&)GetData(It).ElementData).~ElementType();
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}
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} */
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RemoveAtUninitialized(Index, Count);
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}
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/** Removes Count elements from the array, starting from Index, without destructing them. */
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void RemoveAtUninitialized(int32 Index, int32 Count = 1)
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{
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for (; Count; --Count)
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{
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// check(AllocationFlags[Index]);
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// Mark the element as free and add it to the free element list.
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if (NumFreeIndices)
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{
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GetData(FirstFreeIndex).PrevFreeIndex = Index;
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}
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auto& IndexData = GetData(Index);
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IndexData.PrevFreeIndex = -1;
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IndexData.NextFreeIndex = NumFreeIndices > 0 ? FirstFreeIndex : INDEX_NONE;
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FirstFreeIndex = Index;
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++NumFreeIndices;
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AllocationFlags.Set(Index, false);
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// AllocationFlags[Index] = false;
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++Index;
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}
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}
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/*
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FORCEINLINE bool RemoveAt(const int32 IndexToRemove)
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{
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LOG_INFO(LogDev, "IndexToRemove: {}", IndexToRemove);
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LOG_INFO(LogDev, "AllocationFlags.IsSet(IndexToRemove): {}", AllocationFlags.IsSet(IndexToRemove));
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LOG_INFO(LogDev, "Data.Num(): {}", Data.Num());
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if (IndexToRemove >= 0 && IndexToRemove < Data.Num() && AllocationFlags.IsSet(IndexToRemove))
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{
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int32 PreviousFreeIndex = -1;
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int32 NextFreeIndex = -1;
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LOG_INFO(LogDev, "NumFreeIndices: {}", NumFreeIndices);
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if (NumFreeIndices == 0)
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{
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FirstFreeIndex = IndexToRemove;
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Data.at(IndexToRemove) = { -1, -1 };
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}
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else
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{
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for (auto It = AllocationFlags.begin(); It != AllocationFlags.end(); ++It)
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{
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if (!It)
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{
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if (It.GetIndex() < IndexToRemove)
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{
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Data.at(IndexToRemove).PrevFreeIndex = It.GetIndex();
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}
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else if (It.GetIndex() > IndexToRemove)
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{
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Data.at(IndexToRemove).NextFreeIndex = It.GetIndex();
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break;
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}
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}
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}
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}
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AllocationFlags.Set(IndexToRemove, false);
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NumFreeIndices++;
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return true;
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}
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return false;
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}
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*/
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};
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