TMemoryView | Unreal Engine 4.27 Documentation

Unreal Engine C++ API Reference > Runtime > Core > Memory

References


Module	Core
Header	/Engine/Source/Runtime/Core/Public/Memory/MemoryFwd.h
Include	#include "Memory/MemoryFwd.h"

Syntax

template<typename DataType>  
class TMemoryView

Remarks

A non-owning view of a contiguous region of memory.

Prefer to use the aliases FMemoryView or FMutableMemoryView over this type.

Functions that modify a view clamp sizes and offsets to always return a sub-view of the input.

Constructors

Type	Name	Description
constexpr	TMemoryView ()	Construct an empty view.
constexpr	TMemoryView ( const TMemoryView< OtherDataType >& InView )	Construct a view of by copying a view with compatible const/volatile qualifiers.
constexpr	TMemoryView ( DataType* InData, uint64 InSize )	Construct a view of InSize bytes starting at InData.
	TMemoryView ( DataType* InData, DataEndType* InDataEnd )	Construct a view starting at InData and ending at InDataEnd.

Functions

Type	Name	Description
int32	CompareBytes ( const TMemoryView< OtherDataType >& InView )	Returns whether the bytes of this view are equal or less/greater than the bytes of the other view.
bool	Contains ( const TMemoryView< OtherDataType >& InView )	Returns whether this view fully contains the other view.
TMemoryView	CopyFrom ( FMemoryView InView )	Copies bytes from the input view into this view, and returns the remainder of this view.
bool	EqualBytes ( const TMemoryView< OtherDataType >& InView )	Returns whether the bytes of this views are equal to the bytes of the other view.
constexpr bool	Equals ( const TMemoryView< OtherDataType >& InView )	Returns whether the data pointers and sizes of this view and the other view are equal.
constexpr DataType *	GetData ()	Returns a pointer to the start of the view.
DataType *	GetDataEnd ()	Returns a pointer to the end of the view.
constexpr uint64	GetSize ()	Returns the number of bytes in the view.
bool	Intersects ( const TMemoryView< OtherDataType >& InView )	Returns whether this view intersects the other view.
constexpr bool	IsEmpty ()	Returns whether the view has a size of 0 regardless of its data pointer.
constexpr TMemoryView	Left ( uint64 InSize )	Returns the left-most part of the view by taking the given number of bytes from the left.
constexpr TMemoryView	LeftChop ( uint64 InSize )	Returns the left-most part of the view by chopping the given number of bytes from the right.
constexpr void	LeftChopInline ( uint64 InSize )	Modifies the view by chopping the given number of bytes from the right.
constexpr void	LeftInline ( uint64 InSize )	Modifies the view to be the given number of bytes from the left.
TMemoryView	Mid ( uint64 InOffset, uint64 InSize )	Returns the middle part of the view by taking up to the given number of bytes from the given position.
void	MidInline ( uint64 InOffset, uint64 InSize )	Modifies the view to be the middle part by taking up to the given number of bytes from the given offset.
constexpr void	Reset ()	Resets to an empty view.
TMemoryView	Right ( uint64 InSize )	Returns the right-most part of the view by taking the given number of bytes from the right.
TMemoryView	RightChop ( uint64 InSize )	Returns the right-most part of the view by chopping the given number of bytes from the left.
void	RightChopInline ( uint64 InSize )	Modifies the view by chopping the given number of bytes from the left.
void	RightInline ( uint64 InSize )	Modifies the view to be the given number of bytes from the right.

Operators

Type	Name	Description
constexpr bool	operator!= ( const TMemoryView< OtherDataType >& InView )	Returns whether the data pointers and sizes of this view and the other view are not equal.
constexpr TMemoryView &	operator+= ( uint64 InOffset )	Advances the start of the view by an offset, which is clamped to stay within the view.
constexpr bool	operator== ( const TMemoryView< OtherDataType >& InView )	Returns whether the data pointers and sizes of this view and the other view are equal.

Typedefs

Name	Description
ByteType

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