MemoryOps.h File Reference

#include "../BasicTypes.h"
#include "../HAL/UnrealMemory.h"
#include "EnableIf.h"
#include "AreTypesEqual.h"
#include "IsTriviallyCopyConstructible.h"
#include "UnrealTypeTraits.h"
#include <new>
#include "IsTriviallyCopyAssignable.h"
#include "IsTriviallyDestructible.h"

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Classes
struct	UE4MemoryOps_Private::TCanBitwiseRelocate< DestinationElementType, SourceElementType >

Namespaces
namespace	UE4MemoryOps_Private

Functions
template<typename ElementType >
FORCEINLINE TEnableIf<!TIsZeroConstructType< ElementType >::Value >::Type	DefaultConstructItems (void *Address, int32 Count)
template<typename ElementType >
FORCEINLINE TEnableIf< TIsZeroConstructType< ElementType >::Value >::Type	DefaultConstructItems (void *Elements, int32 Count)
template<typename ElementType >
FORCEINLINE TEnableIf<!TIsTriviallyDestructible< ElementType >::Value >::Type	DestructItem (ElementType *Element)
template<typename ElementType >
FORCEINLINE TEnableIf< TIsTriviallyDestructible< ElementType >::Value >::Type	DestructItem (ElementType *Element)
template<typename ElementType >
FORCEINLINE TEnableIf<!TIsTriviallyDestructible< ElementType >::Value >::Type	DestructItems (ElementType *Element, int32 Count)
template<typename ElementType >
FORCEINLINE TEnableIf< TIsTriviallyDestructible< ElementType >::Value >::Type	DestructItems (ElementType *Elements, int32 Count)
template<typename DestinationElementType , typename SourceElementType >
FORCEINLINE TEnableIf<!TIsBitwiseConstructible< DestinationElementType, SourceElementType >::Value >::Type	ConstructItems (void *Dest, const SourceElementType *Source, int32 Count)
template<typename DestinationElementType , typename SourceElementType >
FORCEINLINE TEnableIf< TIsBitwiseConstructible< DestinationElementType, SourceElementType >::Value >::Type	ConstructItems (void *Dest, const SourceElementType *Source, int32 Count)
template<typename ElementType >
FORCEINLINE TEnableIf<!TIsTriviallyCopyAssignable< ElementType >::Value >::Type	CopyAssignItems (ElementType *Dest, const ElementType *Source, int32 Count)
template<typename ElementType >
FORCEINLINE TEnableIf< TIsTriviallyCopyAssignable< ElementType >::Value >::Type	CopyAssignItems (ElementType *Dest, const ElementType *Source, int32 Count)
template<typename DestinationElementType , typename SourceElementType >
FORCEINLINE TEnableIf<!UE4MemoryOps_Private::TCanBitwiseRelocate< DestinationElementType, SourceElementType >::Value >::Type	RelocateConstructItems (void *Dest, const SourceElementType *Source, int32 Count)
template<typename DestinationElementType , typename SourceElementType >
FORCEINLINE TEnableIf< UE4MemoryOps_Private::TCanBitwiseRelocate< DestinationElementType, SourceElementType >::Value >::Type	RelocateConstructItems (void *Dest, const SourceElementType *Source, int32 Count)
template<typename ElementType >
FORCEINLINE TEnableIf<!TIsTriviallyCopyConstructible< ElementType >::Value >::Type	MoveConstructItems (void *Dest, const ElementType *Source, int32 Count)
template<typename ElementType >
FORCEINLINE TEnableIf< TIsTriviallyCopyConstructible< ElementType >::Value >::Type	MoveConstructItems (void *Dest, const ElementType *Source, int32 Count)
template<typename ElementType >
FORCEINLINE TEnableIf<!TIsTriviallyCopyAssignable< ElementType >::Value >::Type	MoveAssignItems (ElementType *Dest, const ElementType *Source, int32 Count)
template<typename ElementType >
FORCEINLINE TEnableIf< TIsTriviallyCopyAssignable< ElementType >::Value >::Type	MoveAssignItems (ElementType *Dest, const ElementType *Source, int32 Count)
template<typename ElementType >
FORCEINLINE TEnableIf< TTypeTraits< ElementType >::IsBytewiseComparable, bool >::Type	CompareItems (const ElementType *A, const ElementType *B, int32 Count)
template<typename ElementType >
FORCEINLINE TEnableIf<!TTypeTraits< ElementType >::IsBytewiseComparable, bool >::Type	CompareItems (const ElementType *A, const ElementType *B, int32 Count)

Function Documentation

CompareItems() [1/2]

template<typename ElementType >

FORCEINLINE TEnableIf< TTypeTraits< ElementType >::IsBytewiseComparable, bool >::Type CompareItems	(	const ElementType *	A,
		const ElementType *	B,
		int32	Count )

Definition at line 256 of file MemoryOps.h.

CompareItems() [2/2]

template<typename ElementType >

FORCEINLINE TEnableIf<!TTypeTraits< ElementType >::IsBytewiseComparable, bool >::Type CompareItems	(	const ElementType *	A,
		const ElementType *	B,
		int32	Count )

Definition at line 263 of file MemoryOps.h.

ConstructItems() [1/2]

template<typename DestinationElementType , typename SourceElementType >

FORCEINLINE TEnableIf<!TIsBitwiseConstructible< DestinationElementType, SourceElementType >::Value >::Type ConstructItems	(	void *	Dest,
		const SourceElementType *	Source,
		int32	Count )

Constructs a range of items into memory from a set of arguments. The arguments come from an another array.

Parameters

Dest	The memory location to start copying into.
Source	A pointer to the first argument to pass to the constructor.
Count	The number of elements to copy.

Definition at line 122 of file MemoryOps.h.

ConstructItems() [2/2]

template<typename DestinationElementType , typename SourceElementType >

FORCEINLINE TEnableIf< TIsBitwiseConstructible< DestinationElementType, SourceElementType >::Value >::Type ConstructItems	(	void *	Dest,
		const SourceElementType *	Source,
		int32	Count )

Definition at line 135 of file MemoryOps.h.

CopyAssignItems() [1/2]

template<typename ElementType >

FORCEINLINE TEnableIf<!TIsTriviallyCopyAssignable< ElementType >::Value >::Type CopyAssignItems	(	ElementType *	Dest,
		const ElementType *	Source,
		int32	Count )

Copy assigns a range of items.

Parameters

Dest	The memory location to start assigning to.
Source	A pointer to the first item to assign.
Count	The number of elements to assign.

Definition at line 149 of file MemoryOps.h.

CopyAssignItems() [2/2]

template<typename ElementType >

FORCEINLINE TEnableIf< TIsTriviallyCopyAssignable< ElementType >::Value >::Type CopyAssignItems	(	ElementType *	Dest,
		const ElementType *	Source,
		int32	Count )

Definition at line 162 of file MemoryOps.h.

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DefaultConstructItems() [1/2]

template<typename ElementType >

FORCEINLINE TEnableIf<!TIsZeroConstructType< ElementType >::Value >::Type DefaultConstructItems	(	void *	Address,
		int32	Count )

Default constructs a range of items in memory.

Parameters

Elements	The address of the first memory location to construct at.
Count	The number of elements to destruct.

Definition at line 43 of file MemoryOps.h.

DefaultConstructItems() [2/2]

template<typename ElementType >

FORCEINLINE TEnableIf< TIsZeroConstructType< ElementType >::Value >::Type DefaultConstructItems	(	void *	Elements,
		int32	Count )

Definition at line 56 of file MemoryOps.h.

DestructItem() [1/2]

template<typename ElementType >

FORCEINLINE TEnableIf<!TIsTriviallyDestructible< ElementType >::Value >::Type DestructItem

(

ElementType *

Element

)

Destructs a single item in memory.

Parameters

Elements

A pointer to the item to destruct.

Note

: This function is optimized for values of T, and so will not dynamically dispatch destructor calls if T's destructor is virtual.

Definition at line 70 of file MemoryOps.h.

DestructItem() [2/2]

template<typename ElementType >

FORCEINLINE TEnableIf< TIsTriviallyDestructible< ElementType >::Value >::Type DestructItem

(

ElementType *

Element

)

Definition at line 80 of file MemoryOps.h.

DestructItems() [1/2]

template<typename ElementType >

FORCEINLINE TEnableIf<!TIsTriviallyDestructible< ElementType >::Value >::Type DestructItems	(	ElementType *	Element,
		int32	Count )

Destructs a range of items in memory.

Parameters

Elements	A pointer to the first item to destruct.
Count	The number of elements to destruct.

Note

: This function is optimized for values of T, and so will not dynamically dispatch destructor calls if T's destructor is virtual.

Definition at line 94 of file MemoryOps.h.

DestructItems() [2/2]

template<typename ElementType >

FORCEINLINE TEnableIf< TIsTriviallyDestructible< ElementType >::Value >::Type DestructItems	(	ElementType *	Elements,
		int32	Count )

Definition at line 109 of file MemoryOps.h.

MoveAssignItems() [1/2]

template<typename ElementType >

FORCEINLINE TEnableIf<!TIsTriviallyCopyAssignable< ElementType >::Value >::Type MoveAssignItems	(	ElementType *	Dest,
		const ElementType *	Source,
		int32	Count )

Move assigns a range of items.

Parameters

Dest	The memory location to start move assigning to.
Source	A pointer to the first item to move assign.
Count	The number of elements to move assign.

Definition at line 238 of file MemoryOps.h.

MoveAssignItems() [2/2]

template<typename ElementType >

FORCEINLINE TEnableIf< TIsTriviallyCopyAssignable< ElementType >::Value >::Type MoveAssignItems	(	ElementType *	Dest,
		const ElementType *	Source,
		int32	Count )

Definition at line 250 of file MemoryOps.h.

MoveConstructItems() [1/2]

template<typename ElementType >

FORCEINLINE TEnableIf<!TIsTriviallyCopyConstructible< ElementType >::Value >::Type MoveConstructItems	(	void *	Dest,
		const ElementType *	Source,
		int32	Count )

Move constructs a range of items into memory.

Parameters

Dest	The memory location to start moving into.
Source	A pointer to the first item to move from.
Count	The number of elements to move.

Definition at line 213 of file MemoryOps.h.

MoveConstructItems() [2/2]

template<typename ElementType >

FORCEINLINE TEnableIf< TIsTriviallyCopyConstructible< ElementType >::Value >::Type MoveConstructItems	(	void *	Dest,
		const ElementType *	Source,
		int32	Count )

Definition at line 225 of file MemoryOps.h.

RelocateConstructItems() [1/2]

template<typename DestinationElementType , typename SourceElementType >

FORCEINLINE TEnableIf<!UE4MemoryOps_Private::TCanBitwiseRelocate< DestinationElementType, SourceElementType >::Value >::Type RelocateConstructItems	(	void *	Dest,
		const SourceElementType *	Source,
		int32	Count )

Relocates a range of items to a new memory location as a new type. This is a so-called 'destructive move' for which there is no single operation in C++ but which can be implemented very efficiently in general.

Parameters

Dest	The memory location to relocate to.
Source	A pointer to the first item to relocate.
Count	The number of elements to relocate.

Definition at line 177 of file MemoryOps.h.

RelocateConstructItems() [2/2]

template<typename DestinationElementType , typename SourceElementType >

FORCEINLINE TEnableIf< UE4MemoryOps_Private::TCanBitwiseRelocate< DestinationElementType, SourceElementType >::Value >::Type RelocateConstructItems	(	void *	Dest,
		const SourceElementType *	Source,
		int32	Count )

Definition at line 192 of file MemoryOps.h.

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