ContainerAllocationPolicies.h File Reference

#include "../BasicTypes.h"
#include "../HAL/UnrealMemory.h"
#include "../Templates/TypeCompatibleBytes.h"
#include "../GenericPlatform/GenericPlatformMath.h"
#include "../Templates/MemoryOps.h"

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Classes
struct	FScriptContainerElement
struct	TAllocatorTraitsBase< AllocatorType >
struct	TAllocatorTraits< AllocatorType >
class	FContainerAllocatorInterface
class	FContainerAllocatorInterface::ForElementType< ElementType >
class	TAlignedHeapAllocator< Alignment >
class	TAlignedHeapAllocator< Alignment >::ForAnyElementType
class	TAlignedHeapAllocator< Alignment >::ForElementType< ElementType >
struct	TAllocatorTraits< TAlignedHeapAllocator< Alignment > >
class	FHeapAllocator
class	FHeapAllocator::ForAnyElementType
class	FHeapAllocator::ForElementType< ElementType >
struct	TAllocatorTraits< FHeapAllocator >
class	TInlineAllocator< NumInlineElements, SecondaryAllocator >
class	TInlineAllocator< NumInlineElements, SecondaryAllocator >::ForElementType< ElementType >
struct	TAllocatorTraits< TInlineAllocator< NumInlineElements, SecondaryAllocator > >
class	TFixedAllocator< NumInlineElements >
class	TFixedAllocator< NumInlineElements >::ForElementType< ElementType >
struct	TAllocatorTraits< TFixedAllocator< NumInlineElements > >
class	TSparseArrayAllocator< InElementAllocator, InBitArrayAllocator >
class	TInlineSparseArrayAllocator< NumInlineElements, SecondaryAllocator >
class	TSetAllocator< InSparseArrayAllocator, InHashAllocator, AverageNumberOfElementsPerHashBucket, BaseNumberOfHashBuckets, MinNumberOfHashedElements >
class	TInlineSetAllocator< NumInlineElements, SecondaryAllocator, AverageNumberOfElementsPerHashBucket, MinNumberOfHashedElements >
class	FDefaultAllocator
class	FDefaultSetAllocator
class	FDefaultBitArrayAllocator
class	FDefaultSparseArrayAllocator
struct	TAllocatorTraits< FDefaultAllocator >
struct	TAllocatorTraits< FDefaultSetAllocator >
struct	TAllocatorTraits< FDefaultBitArrayAllocator >
struct	TAllocatorTraits< FDefaultSparseArrayAllocator >

Macros
#define	NumBitsPerDWORD   ((int32)32)
#define	NumBitsPerDWORDLogTwo   ((int32)5)
#define	DEFAULT_NUMBER_OF_ELEMENTS_PER_HASH_BUCKET   2
#define	DEFAULT_BASE_NUMBER_OF_HASH_BUCKETS   8
#define	DEFAULT_MIN_NUMBER_OF_HASHED_ELEMENTS   4

Functions
template<typename ReferencedType >
ReferencedType *	IfAThenAElseB (ReferencedType *A, ReferencedType *B)
template<typename PredicateType , typename ReferencedType >
ReferencedType *	IfPThenAElseB (PredicateType Predicate, ReferencedType *A, ReferencedType *B)
FORCEINLINE int32	DefaultCalculateSlackShrink (int32 NumElements, int32 NumAllocatedElements, SIZE_T BytesPerElement, bool bAllowQuantize, uint32 Alignment=DEFAULT_ALIGNMENT)
FORCEINLINE int32	DefaultCalculateSlackGrow (int32 NumElements, int32 NumAllocatedElements, SIZE_T BytesPerElement, bool bAllowQuantize, uint32 Alignment=DEFAULT_ALIGNMENT)
FORCEINLINE int32	DefaultCalculateSlackReserve (int32 NumElements, SIZE_T BytesPerElement, bool bAllowQuantize, uint32 Alignment=DEFAULT_ALIGNMENT)

Macro Definition Documentation

DEFAULT_BASE_NUMBER_OF_HASH_BUCKETS

#define DEFAULT_BASE_NUMBER_OF_HASH_BUCKETS   8

Definition at line 716 of file ContainerAllocationPolicies.h.

DEFAULT_MIN_NUMBER_OF_HASHED_ELEMENTS

#define DEFAULT_MIN_NUMBER_OF_HASHED_ELEMENTS   4

Definition at line 717 of file ContainerAllocationPolicies.h.

DEFAULT_NUMBER_OF_ELEMENTS_PER_HASH_BUCKET

#define DEFAULT_NUMBER_OF_ELEMENTS_PER_HASH_BUCKET   2

Definition at line 715 of file ContainerAllocationPolicies.h.

NumBitsPerDWORD

#define NumBitsPerDWORD   ((int32)32)

Definition at line 673 of file ContainerAllocationPolicies.h.

NumBitsPerDWORDLogTwo

#define NumBitsPerDWORDLogTwo   ((int32)5)

Definition at line 674 of file ContainerAllocationPolicies.h.

Function Documentation

DefaultCalculateSlackGrow()

FORCEINLINE int32 DefaultCalculateSlackGrow	(	int32	NumElements,
		int32	NumAllocatedElements,
		SIZE_T	BytesPerElement,
		bool	bAllowQuantize,
		uint32	Alignment = DEFAULT_ALIGNMENT )

Definition at line 57 of file ContainerAllocationPolicies.h.

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DefaultCalculateSlackReserve()

FORCEINLINE int32 DefaultCalculateSlackReserve	(	int32	NumElements,
		SIZE_T	BytesPerElement,
		bool	bAllowQuantize,
		uint32	Alignment = DEFAULT_ALIGNMENT )

Definition at line 85 of file ContainerAllocationPolicies.h.

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DefaultCalculateSlackShrink()

FORCEINLINE int32 DefaultCalculateSlackShrink	(	int32	NumElements,
		int32	NumAllocatedElements,
		SIZE_T	BytesPerElement,
		bool	bAllowQuantize,
		uint32	Alignment = DEFAULT_ALIGNMENT )

Definition at line 28 of file ContainerAllocationPolicies.h.

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IfAThenAElseB()

template<typename ReferencedType >

ReferencedType * IfAThenAElseB	(	ReferencedType *	A,
		ReferencedType *	B )

branchless pointer selection return A ? A : B;

Chooses between the two parameters based on whether the first is nullptr or not.

Returns

If the first parameter provided is non-nullptr, it is returned; otherwise the second parameter is returned.

Definition at line 26 of file UnrealTemplate.h.

IfPThenAElseB()

template<typename PredicateType , typename ReferencedType >

ReferencedType * IfPThenAElseB	(	PredicateType	Predicate,
		ReferencedType *	A,
		ReferencedType *	B )

branchless pointer selection based on predicate return PTRINT(Predicate) ? A : B;

Definition at line 41 of file UnrealTemplate.h.