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TChunkedArray

An array that uses multiple allocations to avoid allocation failure due to fragmentation.

API > API/Runtime > API/Runtime/Core > API/Runtime/Core/Containers

References

   
Module Core
Header /Engine/Source/Runtime/Core/Public/Containers/ChunkedArray.h
Include #include "Containers/ChunkedArray.h"

Syntax

template<typename InElementType, uint32 TargetBytesPerChunk, typename AllocatorType>  
class TChunkedArray

Remarks

An array that uses multiple allocations to avoid allocation failure due to fragmentation.

Variables

  Type Name Description
Protected variable ChunksType Chunks  
Protected variable int32 NumElements The number of elements in the array.

Constructors

  Type Name Description
Public function  

TChunkedArray ( int32 InNumElements
)

 Initialization constructor.
Public function    
Public function    

Functions

  Type Name Description
Public function int32

Add ( int32 Count
)

  
Public function int32

AddElement ( const ElementType& Item
)

 Adds a new item to the end of the chunked array.
Public function Const FConstIterType

begin ()

  
Public function FIterType

begin ()

  
Public function void

CopyToLinearArray ( TArray< ElementType, OtherAllocator >& DestinationArray
)

  
Public function void

Empty ( int32 Slack
)

  
Public function Const FConstIterType

end ()

  
Public function FIterType

end ()

  
Public function Const SIZE_T  
Public function Const bool

IsEmpty ()

 Returns true if the chunked array is empty and contains no elements.
Public function Const bool

IsValidIndex ( int32 Index
)

 Tests if index is valid, i.e. greater than zero and less than number of elements in array.
Public function Const int32

Num ()

  
Public function void

Reserve ( int32 Number
)

 Reserves memory such that the array can contain at least Number elements.
Public function void

Shrink ()

  

Operators

  Type Name Description
Public function ElementType &

operator() ( int32 ElementIndex
)

 Accessors.
Public function Const const ElementType &

operator() ( int32 ElementIndex
)

  
Public function ElementType &

operator[] ( int32 ElementIndex
)

  
Public function Const const ElementType &

operator[] ( int32 ElementIndex
)

  
Public function TChunkedArray &

operator+= ( const TArray< ElementType >& Other
)

 Appends the specified array to this array. Cannot append to self.
Public function TChunkedArray &

operator+= ( const TChunkedArray& Other
)

  
Public function TChunkedArray &  
Public function TChunkedArray &

operator= ( TChunkedArray&& Other
)

  

Classes

  Type Name Description
Protected struct FChunk A chunk of the array's elements.  

Typedefs

Name Description
ChunksType The chunks of the array's elements.
ElementType  
FConstIterType  
FIterType  

Constants

Name Description
NumElementsPerChunk  

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