#include <pointerarray.h>

Inheritance diagram for PointerArray< T, MINCHUNKSIZE, ALLOCATOR >:

[legend]

Detailed Description

template<typename T, Int MINCHUNKSIZE = BASEARRAY_DEFAULT_CHUNK_SIZE, typename ALLOCATOR = DefaultAllocator>
class maxon::PointerArray< T, MINCHUNKSIZE, ALLOCATOR >

Array of pointers to objects. The array consists of pointers to objects of type T (instead of storing the objects directly like a BaseArray does). Internally each time you append or insert an element a new object of type T is allocated, constructed and the corresponding index of the array will point to it. Nonetheless this array has the same interface as a BaseArray except for AppendPtr(), InsertPtr() and PopPtr() which allow you to directly add or remove already existing objects. Like with all other arrays the destructor of the PointerArray will release memory for all objects that are still part of the array. If you want to use the objects yourself after they have been created by the PointerArray you have to take ownership of them by calling PopPtr() or use a BaseArray<T*> instead of a PointerArray<T>.

Please note that in a C++11 range based for loop you may not call a non-const method that modifies the range (e.g. Erase) - it does not work because the loop does not expect the range to change. Use the Iterable::EraseIterator in that case.

Performance characteristics: Random access to array elements is constant: O(1). Append or Pop (erase the last) an element is amortized constant: O(1) Insert or Erase an element is best case amortized constant (big elements) or in worst case linear (small elements): O(1) to O(n)

Note: : Do not rely on the characteristics to pick the right type of collection. Always profile!

Template Parameters

T	Type of the array elements.
MINCHUNKSIZE	The minimum number of elements upon array creation.
ALLOCATOR	Class for memory allocation.

Note: Note that the array element class has special requirements regarding copy and move constructors .

See also: $ref arrays

Classes
class	IteratorTemplate

Public Types
using	Array = BaseArray< T *, MINCHUNKSIZE, BASEARRAYFLAGS::MOVEANDCOPYOBJECTS, ALLOCATOR >

using	AllocatorType = ALLOCATOR

using	Iterator = IteratorTemplate< false >

using	ConstIterator = IteratorTemplate< true >

Public Types inherited from Collection< COLLECTION, VALUETYPE, SUPER >
using	Super = BaseCollection< COLLECTION, SUPER >

using	ValueType = VALUETYPE

Public Types inherited from BaseCollection< COLLECTION, SUPER >
using	IsCollection = std::true_type

using	IsBaseArray = std::false_type

Public Member Functions
	PointerArray ()

	PointerArray (const ALLOCATOR &a)

	~PointerArray ()

	PointerArray (PointerArray &&src)

	MAXON_OPERATOR_MOVE_ASSIGNMENT (PointerArray)

void	Reset ()

void	Flush ()

MAXON_ATTRIBUTE_FORCE_INLINE Int	GetCount () const

MAXON_ATTRIBUTE_FORCE_INLINE Int	GetCapacityCount () const

MAXON_ATTRIBUTE_FORCE_INLINE const T &	operator[] (Int idx) const

MAXON_ATTRIBUTE_FORCE_INLINE T &	operator[] (Int idx)

template<typename ARG >
MAXON_ATTRIBUTE_FORCE_INLINE ResultRef< T >	Append (ARG &&x)

template<typename... ARGS>
MAXON_ATTRIBUTE_FORCE_INLINE std::enable_if< sizeof...(ARGS) !=1, ResultRef< T > >::type	Append (ARGS &&... args)

MAXON_ATTRIBUTE_FORCE_INLINE ResultPtr< T >	AppendBlock (const Block< const T > &values)

MAXON_ATTRIBUTE_FORCE_INLINE ResultPtr< T >	Append (const std::initializer_list< T > &values)

ResultPtr< T >	AppendPtr (T *x)

MAXON_ATTRIBUTE_FORCE_INLINE ResultRef< T >	Insert (Int position)

MAXON_ATTRIBUTE_FORCE_INLINE ResultMemT< Iterator >	Insert (Iterator position)

MAXON_ATTRIBUTE_FORCE_INLINE ResultRef< T >	Insert (Int position, const T &x)

MAXON_ATTRIBUTE_FORCE_INLINE ResultMemT< Iterator >	Insert (Iterator position, const T &x)

MAXON_ATTRIBUTE_FORCE_INLINE ResultRef< T >	Insert (Int position, T &&x)

MAXON_ATTRIBUTE_FORCE_INLINE ResultMemT< Iterator >	Insert (Iterator position, T &&x)

ResultPtr< T >	InsertPtr (Int position, T *x)

ResultPtr< T >	InsertBlock (Int position, const Block< const T > &values)

ResultPtr< T >	Insert (Int position, const std::initializer_list< T > &values)

ResultMemT< Iterator >	InsertBlock (Iterator position, const Block< const T > &values)

ResultMemT< Iterator >	Insert (Iterator position, const std::initializer_list< T > &values)

ResultPtr< T >	Erase (Int position, Int eraseCnt=1)

Iterator	Erase (Iterator position, Int eraseCnt=1)

ResultPtr< T >	ErasePtr (Int position, T **dst)

ResultMem	SwapErase (Int position, Int eraseCnt=1)

Iterator	SwapErase (Iterator position, Int eraseCnt=1)

template<Bool STRIDED>
MAXON_ATTRIBUTE_FORCE_INLINE Int	GetBlock (Int position, Block< T, STRIDED > &block)

template<Bool STRIDED>
MAXON_ATTRIBUTE_FORCE_INLINE Int	GetBlock (Int position, Block< const T, STRIDED > &block) const

template<Bool STRIDED>
MAXON_ATTRIBUTE_FORCE_INLINE Iterator	GetBlock (Iterator position, Block< T, STRIDED > &block)

template<Bool STRIDED>
MAXON_ATTRIBUTE_FORCE_INLINE Iterator	GetBlock (Iterator position, Block< const T, STRIDED > &block) const

MAXON_ATTRIBUTE_FORCE_INLINE const T *	GetFirst () const

MAXON_ATTRIBUTE_FORCE_INLINE T *	GetFirst ()

MAXON_ATTRIBUTE_FORCE_INLINE const T *	GetLast () const

MAXON_ATTRIBUTE_FORCE_INLINE T *	GetLast ()

ResultMem	SetCapacityHint (Int requestedCapacity, COLLECTION_RESIZE_FLAGS resizeFlags=COLLECTION_RESIZE_FLAGS::ON_GROW_RESERVE_CAPACITY)

ResultMem	Resize (Int newCnt, COLLECTION_RESIZE_FLAGS resizeFlags=COLLECTION_RESIZE_FLAGS::DEFAULT)

MAXON_ATTRIBUTE_FORCE_INLINE Bool	Pop (T *dst=nullptr)

Bool	PopPtr (T **dst)

Int	GetIndex (const T &x) const

MAXON_ATTRIBUTE_FORCE_INLINE void	Swap (Iterator a, Iterator b)

Int	GetMemorySize () const

MAXON_ATTRIBUTE_FORCE_INLINE ConstIterator	Begin () const

MAXON_ATTRIBUTE_FORCE_INLINE Iterator	Begin ()

MAXON_ATTRIBUTE_FORCE_INLINE ConstIterator	End () const

MAXON_ATTRIBUTE_FORCE_INLINE Iterator	End ()

Block< T * >	Disconnect ()

ALLOCATOR &	GetAllocator ()

Array &	GetUnderlyingArray ()

const Array &	GetUnderlyingArray () const

Public Member Functions inherited from ArrayBase< PointerArray< T, BASEARRAY_DEFAULT_CHUNK_SIZE, DefaultAllocator >, T, EmptyClass, DefaultCompare >
constexpr MAXON_ATTRIBUTE_FORCE_INLINE	ArrayBase (ARGS &&... args)

ArrayImpl< PointerArray< T, BASEARRAY_DEFAULT_CHUNK_SIZE, DefaultAllocator > & >	ToArray ()

ArrayImpl< const PointerArray< T, BASEARRAY_DEFAULT_CHUNK_SIZE, DefaultAllocator > & >	ToArray () const

MAXON_ATTRIBUTE_FORCE_INLINE	operator ArrayImpl< PointerArray< T, BASEARRAY_DEFAULT_CHUNK_SIZE, DefaultAllocator > & > ()

MAXON_ATTRIBUTE_FORCE_INLINE	operator ArrayImpl< const PointerArray< T, BASEARRAY_DEFAULT_CHUNK_SIZE, DefaultAllocator > & > () const

Public Member Functions inherited from ArrayBase0< COLLECTION, VALUETYPE, SUPER, HASH >
template<typename... ARGS>
constexpr MAXON_ATTRIBUTE_FORCE_INLINE	ArrayBase0 (ARGS &&... args)

Bool	IsValidIndex (Int index) const

Result< void >	CheckValidIndex (Int index) const

Int	FindIndex (typename ByValueParam< VALUETYPE >::type v, Int start) const

Int	FindLastIndex (typename ByValueParam< VALUETYPE >::type v) const

Int	FindLastIndex (typename ByValueParam< VALUETYPE >::type v, Int start) const

Bool	EraseFirst (typename ByValueParam< VALUETYPE >::type v)

Int	EraseAll (typename ByValueParam< VALUETYPE >::type v)

template<typename COLLECTION2 >
Result< void >	AppendAllImpl (COLLECTION2 &&other, COLLECTION_RESIZE_FLAGS resizeFlags, Bool overwrite, OverloadRank0)

template<typename COLLECTION2 >
Result< void >	InsertAll (Int index, COLLECTION2 &&other, COLLECTION_RESIZE_FLAGS resizeFlags=COLLECTION_RESIZE_FLAGS::ON_GROW_RESERVE_CAPACITY)

template<typename COLLECTION2 >
Result< void >	Add (COLLECTION2 &&other, COLLECTION_RESIZE_FLAGS resizeFlags=COLLECTION_RESIZE_FLAGS::ON_GROW_RESERVE_CAPACITY)

template<typename COLLECTION2 >
Result< void >	SubtractImpl (COLLECTION2 &&other, OverloadRank0)

template<typename COLLECTION2 , typename COMPARE >
Bool	IsEqualImpl (const COLLECTION2 &other, COMPARE &&cmp, OverloadRank0) const

HashInt	GetHashCode () const

UniqueHash	GetUniqueHashCode () const

MAXON_ATTRIBUTE_FORCE_INLINE AutoIterator< COLLECTION >	Slice (Int start)

MAXON_ATTRIBUTE_FORCE_INLINE AutoIterator< const COLLECTION >	Slice (Int start) const

MAXON_ATTRIBUTE_FORCE_INLINE AutoIterator< COLLECTION >	Slice (Int start, Int end)

MAXON_ATTRIBUTE_FORCE_INLINE AutoIterator< const COLLECTION >	Slice (Int start, Int end) const

BlockIterator< COLLECTION, VALUETYPE, false, false >	GetBlocks ()

BlockIterator< COLLECTION, VALUETYPE, true, false >	GetBlocks () const

BlockIterator< COLLECTION, VALUETYPE, false, true >	GetStridedBlocks ()

BlockIterator< COLLECTION, VALUETYPE, true, true >	GetStridedBlocks () const

Public Member Functions inherited from Collection< COLLECTION, VALUETYPE, SUPER >
template<typename... ARGS>
MAXON_ATTRIBUTE_FORCE_INLINE	Collection (ARGS &&... args)

ResultOk< void >	VariadicAppend ()

template<typename V , typename... VALUES>
Result< void >	VariadicAppend (V &&value, VALUES &&... rest)

	operator ValueReceiver< const VALUETYPE & > ()

	operator ValueReceiver< VALUETYPE && > ()

	operator ValueReceiver< typename std::conditional< STD_IS_REPLACEMENT (scalar, VALUETYPE)

DummyParamType &	type ()

template<typename FN >
Result< Bool >	ForEach (FN &&callback) const

template<typename FN >
Result< Bool >	ForEach (FN &&callback)

template<typename H = COLLECTION>
H::Iterator	Find (typename ByValueParam< VALUETYPE >::type v)

template<typename H = COLLECTION>
H::ConstIterator	Find (typename ByValueParam< VALUETYPE >::type v) const

Int	FindIndex (typename ByValueParam< VALUETYPE >::type v) const

MAXON_ATTRIBUTE_FORCE_INLINE Bool	Contains (typename ByValueParam< VALUETYPE >::type v) const

Public Member Functions inherited from BaseCollection< COLLECTION, SUPER >
template<typename... ARGS>
MAXON_ATTRIBUTE_FORCE_INLINE	BaseCollection (ARGS &&... args)

template<typename COLLECTION2 >
MAXON_ATTRIBUTE_FORCE_INLINE std::enable_if< maxon::IsCollection< COLLECTION2 >::value, Bool >::type	operator== (const COLLECTION2 &other) const

template<typename COLLECTION2 >
MAXON_ATTRIBUTE_FORCE_INLINE std::enable_if< maxon::IsCollection< COLLECTION2 >::value, Bool >::type	operator!= (const COLLECTION2 &other) const

template<typename COMPARE = EqualityCompare, typename COLLECTION2 >
MAXON_ATTRIBUTE_FORCE_INLINE std::enable_if< maxon::IsCollection< COLLECTION2 >::value &&!STD_IS_REPLACEMENT(same, typename std::decay< COMPARE >::type, EQUALITY), Bool >::type	IsEqual (const COLLECTION2 &other, COMPARE &&cmp=COMPARE()) const

template<typename COLLECTION2 >
MAXON_ATTRIBUTE_FORCE_INLINE Result< void >	AppendAll (COLLECTION2 &&other, COLLECTION_RESIZE_FLAGS resizeFlags=COLLECTION_RESIZE_FLAGS::ON_GROW_RESERVE_CAPACITY)

template<typename COLLECTION2 >
MAXON_ATTRIBUTE_FORCE_INLINE Result< void >	CopyFrom (COLLECTION2 &&other, COLLECTION_RESIZE_FLAGS resizeFlags=COLLECTION_RESIZE_FLAGS::FIT_TO_SIZE)

template<typename COLLECTION2 >
MAXON_ATTRIBUTE_FORCE_INLINE Result< void >	Subtract (COLLECTION2 &&other)

template<typename COLLECTION2 >
MAXON_ATTRIBUTE_FORCE_INLINE Result< void >	Intersect (const COLLECTION2 &other)

template<typename COLLECTION2 >
Bool	Intersects (const COLLECTION2 &other) const

template<typename COLLECTION2 >
MAXON_ATTRIBUTE_FORCE_INLINE Result< void >	CopyFromImpl (COLLECTION2 &&other, COLLECTION_RESIZE_FLAGS resizeFlags, OverloadRank0)

template<typename COLLECTION2 >
Result< void >	AppendAllImpl (COLLECTION2 &&other, COLLECTION_RESIZE_FLAGS resizeFlags, Bool overwrite, OverloadRank0)

template<typename COLLECTION2 >
Result< void >	IntersectImpl (COLLECTION2 &&other, OverloadRank0)

MAXON_ATTRIBUTE_FORCE_INLINE Bool	IsEmpty () const

MAXON_ATTRIBUTE_FORCE_INLINE Bool	IsPopulated () const

String	ToString (const FormatStatement *formatStatement=nullptr) const

template<typename COLLECTION2 >
MAXON_ATTRIBUTE_FORCE_INLINE Bool	ContainsAll (COLLECTION2 &&other) const

template<typename COLLECTION2 >
Bool	ContainsAllImpl (COLLECTION2 &&other, OverloadRank0) const

Private Member Functions
	MAXON_DISALLOW_COPY_AND_ASSIGN (PointerArray)

template<typename COLLECTION2 >
Result< void >	AppendAllImpl (COLLECTION2 &&other, COLLECTION_RESIZE_FLAGS resizeFlags, Bool overwrite, OverloadRank0)

T *	Alloc ()

T **	AllocPointers (Int cnt)

template<typename X >
void	Free (X *&p)

Private Attributes
Array	_ptr

Additional Inherited Members
Static Public Member Functions inherited from Collection< COLLECTION, VALUETYPE, SUPER >
static const VALUETYPE &	GetMapKey (const VALUETYPE &key)

Public Attributes inherited from Collection< COLLECTION, VALUETYPE, SUPER >
	VALUETYPE

Static Public Attributes inherited from ArrayBase0< COLLECTION, VALUETYPE, SUPER, HASH >
static const COLLECTION_KIND	KIND

Member Typedef Documentation

◆ Array

using Array = BaseArray<T*, MINCHUNKSIZE, BASEARRAYFLAGS::MOVEANDCOPYOBJECTS, ALLOCATOR>

◆ AllocatorType

using AllocatorType = ALLOCATOR

◆ Iterator

using Iterator = IteratorTemplate<false>

◆ ConstIterator

using ConstIterator = IteratorTemplate<true>

Constructor & Destructor Documentation

◆ PointerArray() [1/3]

PointerArray ( )

Default constructor. Creates an empty array.

◆ PointerArray() [2/3]

PointerArray ( const ALLOCATOR & a )

explicit

This constructor has to be used if an array should use a custom allocator with member variables.

◆ ~PointerArray()

~PointerArray ( )

Destructs the array with all its elements.

◆ PointerArray() [3/3]

PointerArray ( PointerArray< T, MINCHUNKSIZE, ALLOCATOR > && src )

Move constructor.

Member Function Documentation

◆ MAXON_DISALLOW_COPY_AND_ASSIGN()

MAXON_DISALLOW_COPY_AND_ASSIGN ( PointerArray< T, MINCHUNKSIZE, ALLOCATOR > )

private

◆ MAXON_OPERATOR_MOVE_ASSIGNMENT()

MAXON_OPERATOR_MOVE_ASSIGNMENT ( PointerArray< T, MINCHUNKSIZE, ALLOCATOR > )

Move assignment operator.

◆ Reset()

void Reset ( )

Deletes all elements (calls destructors and frees memory).

◆ Flush()

void Flush ( )

Deletes all elements, but doesn't free memory (calls destructors though).

◆ GetCount()

MAXON_ATTRIBUTE_FORCE_INLINE Int GetCount ( ) const

Gets the number of array elements.

Returns: Number of array elements.

◆ GetCapacityCount()

MAXON_ATTRIBUTE_FORCE_INLINE Int GetCapacityCount ( ) const

Gets the number of elements for which memory has been allocated (for a PointerArray this is equal to GetCount()).

Returns: Number of array elements for which memory has been allocated.

◆ operator[]() [1/2]

MAXON_ATTRIBUTE_FORCE_INLINE const T& operator[] ( Int idx ) const

Array (subscript) operator for const objects.

Parameters

[in] idx Element index (if it's out of bounds you will get an error in debug code only, otherwise it will crash).

Returns: Array element.

◆ operator[]() [2/2]

MAXON_ATTRIBUTE_FORCE_INLINE T& operator[] ( Int idx )

Array (subscript) operator for non-const objects.

Parameters

[in] idx Element index (if it's out of bounds you will get an error in debug code only, otherwise it will crash).

Returns: Array element.

◆ Append() [1/3]

MAXON_ATTRIBUTE_FORCE_INLINE ResultRef<T> Append ( ARG && x )

◆ Append() [2/3]

MAXON_ATTRIBUTE_FORCE_INLINE std::enable_if<sizeof...(ARGS) != 1, ResultRef<T> >::type Append ( ARGS &&... args )

◆ AppendBlock()

MAXON_ATTRIBUTE_FORCE_INLINE ResultPtr<T> AppendBlock ( const Block< const T > & values )

◆ Append() [3/3]

MAXON_ATTRIBUTE_FORCE_INLINE ResultPtr<T> Append ( const std::initializer_list< T > & values )

Appends new elements at the end of the array.

Parameters

[in] values Initializer list with values to be copied.

Returns: Element pointer or OutOfMemoryError if the allocation failed.

◆ AppendPtr()

ResultPtr<T> AppendPtr ( T * x )

PointerArray specific: Adds a pointer to the new element at the end of the array.

Parameters

[in] x Pointer to new element (PointerArray will take ownership of it).

Returns: Element pointer or nullptr (in this case x is still valid).

◆ Insert() [1/8]

MAXON_ATTRIBUTE_FORCE_INLINE ResultRef<T> Insert ( Int position )

Inserts a new default element at index position.

Parameters

[in] position Insert index (the array size will increase and the existing elements are moved).

Returns: Element reference or OutOfMemoryError if the allocation failed (or position is out of boundaries).

◆ Insert() [2/8]

MAXON_ATTRIBUTE_FORCE_INLINE ResultMemT<Iterator> Insert ( Iterator position )

Inserts a new default element at iterator position.

Parameters

[in] position Insert position.

Returns: Iterator for the new element or OutOfMemoryError if the allocation failed (or position is out of boundaries).

◆ Insert() [3/8]

MAXON_ATTRIBUTE_FORCE_INLINE ResultRef<T> Insert	(	Int	position,
		const T &	x
	)

Inserts a new element at index position and initializes it with a copy of x.

Parameters

[in]	position	Insert index (the array size will increase and the existing elements are moved).
[in]	x	Value to be copied.

Returns: Element reference or OutOfMemoryError if the allocation failed (or position is out of boundaries).

◆ Insert() [4/8]

MAXON_ATTRIBUTE_FORCE_INLINE ResultMemT<Iterator> Insert	(	Iterator	position,
		const T &	x
	)

Inserts a new element at iterator position and initializes it with a copy of x.

Parameters

[in]	position	Insert position.
[in]	x	Value to be copied.

Returns: Iterator for the new element or OutOfMemoryError if the allocation failed (or position is out of boundaries).

◆ Insert() [5/8]

MAXON_ATTRIBUTE_FORCE_INLINE ResultRef<T> Insert	(	Int	position,
		T &&	x
	)

Inserts a new element at index position and moves the content of x to it.

Parameters

[in]	position	Insert index (the array size will increase and the existing elements are moved).
[in]	x	Value to be moved.

Returns: Element reference or OutOfMemoryError if the allocation failed (or position is out of boundaries).

◆ Insert() [6/8]

MAXON_ATTRIBUTE_FORCE_INLINE ResultMemT<Iterator> Insert	(	Iterator	position,
		T &&	x
	)

Inserts a new element at iterator position and moves the content of x to it.

Parameters

[in]	position	Insert position.
[in]	x	Value to be moved.

Returns: Iterator for the new element or OutOfMemoryError if the allocation failed (or position is out of boundaries).

◆ InsertPtr()

ResultPtr<T> InsertPtr	(	Int	position,
		T *	x
	)

PointerArray specific: Inserts a pointer to a new element at index position.

Parameters

[in]	position	Insert index (the array size will increase and the existing elements are moved).
[in]	x	Pointer to new element (PointerArray will take ownership of it).

Returns: Element pointer or OutOfMemoryError if the allocation failed (or position is out of boundaries).

◆ InsertBlock() [1/2]

ResultPtr<T> InsertBlock	(	Int	position,
		const Block< const T > &	values
	)

Inserts new elements at index position (the pointers to all elements from position on are moved by the the count of values).

Parameters

[in]	position	Insert index (the array size will increase and the existing elements are moved).
[in]	values	Block with values to be copied. If the block points to nullptr, only its count is used, and you have to call the constructor of the new elements manually.

Returns: Element pointer or OutOfMemoryError if the allocation failed (or position is out of boundaries).

◆ Insert() [7/8]

ResultPtr<T> Insert	(	Int	position,
		const std::initializer_list< T > &	values
	)

Inserts new elements at index position (all elements from position on are moved by the the count of values).

Parameters

[in]	position	Insert index (the array size will increase and the existing elements are moved).
[in]	values	Initializer list with values to be copied.

Returns: Element pointer or OutOfMemoryError if the allocation failed (or position is out of boundaries).

◆ InsertBlock() [2/2]

ResultMemT<Iterator> InsertBlock	(	Iterator	position,
		const Block< const T > &	values
	)

Inserts new elements at iterator position (all elements from position on are moved by the the count of values).

Parameters

[in]	position	Insert position.
[in]	values	Block with values to be copied. If the block points to nullptr, only its count is used, and you have to call the constructor of the new elements manually.

Returns: Iterator for the new element or OutOfMemoryError if the allocation failed (or position is out of boundaries).

◆ Insert() [8/8]

ResultMemT<Iterator> Insert	(	Iterator	position,
		const std::initializer_list< T > &	values
	)

Inserts new elements at iterator position (all elements from position on are moved by the the count of values).

Parameters

[in]	position	Insert position.
[in]	values	Initializer list with values to be copied.

Returns: Iterator for the new element or OutOfMemoryError if the allocation failed (or position is out of boundaries).

◆ Erase() [1/2]

ResultPtr<T> Erase	(	Int	position,
		Int	eraseCnt = `1`
	)

Erases (removes and deletes) elements.

Parameters

[in]	position	Erase index (Erase() will fail if out of bounds and return nullptr).
[in]	eraseCnt	Number of elements to be erased. If eraseCnt is invalid (higher than allowed or negative) a nullptr will be returned.

Returns: Pointer to the element that is now at position. If position equals the number of elements after Erase() a valid pointer is returned but you are not allowed to access it. OutOfMemoryError is only returned on failure (position was out of bounds).

◆ Erase() [2/2]

Iterator Erase	(	Iterator	position,
		Int	eraseCnt = `1`
	)

Erases (removes and deletes) elements.

Parameters

[in]	position	Erase position.
[in]	eraseCnt	Number of elements to be erased. If eraseCnt is invalid (higher than allowed or negative) an invalid iterator will be returned.

Returns: Iterator for the element that is now at position (its operator Bool() will return false if something failed).

◆ ErasePtr()

ResultPtr<T> ErasePtr	(	Int	position,
		T **	dst
	)

Extracts a single element from the list and returns its pointer. The caller takes ownership of the element.

Parameters

[in]	position	Erase index (Erase() will fail if out of bounds and return nullptr).
[in,out]	dst	Used to return pointer to the erased element (must not be null).

Returns: Pointer to the element that is now at position. If position equals the that of the element after Erase(), a valid pointer is returned but you are not allowed to access it. A nullptr is only returned on failure (position was out of bounds).

◆ SwapErase() [1/2]

ResultMem SwapErase	(	Int	position,
		Int	eraseCnt = `1`
	)

Erases elements within the array and moves elements from the end to the erased gap. This is generally faster than Erase() because at most eraseCnt elements have to be moved, but it changes the order of elements.

Parameters

[in]	position	Erase index (SwapErase() will fail if out of bounds and return nullptr).
[in]	eraseCnt	Number of elements to be erased. If eraseCnt is invalid (higher than allowed or negative) false will be returned.

Returns: False if position was out of bounds.

◆ SwapErase() [2/2]

Iterator SwapErase	(	Iterator	position,
		Int	eraseCnt = `1`
	)

Erases elements within the array and moves elements from the end to the erased gap. This is generally faster than Erase() because at most eraseCnt elements have to be moved, but it changes the order of elements.

Parameters

[in]	position	Erase position.
[in]	eraseCnt	Number of elements to be erased. If eraseCnt is invalid (higher than allowed or negative) an invalid iterator will be returned.

Returns: Iterator for the element that is now at position (its operator Bool() will return false if something failed).

◆ GetBlock() [1/4]

MAXON_ATTRIBUTE_FORCE_INLINE Int GetBlock	(	Int	position,
		Block< T, STRIDED > &	block
	)

Determines a contiguous block of array elements which contains the element at index. For a BaseArray, this yields the whole array as a block.

Parameters

[in]	position	Element index.
[out]	block	Block which contains the element at `index`.

Returns: Start index of the block. The requested element can be found within the block at index - start index.

◆ GetBlock() [2/4]

MAXON_ATTRIBUTE_FORCE_INLINE Int GetBlock	(	Int	position,
		Block< const T, STRIDED > &	block
	)		const

Determines a contiguous block of array elements which contains the element at position. For a BaseArray, this yields the whole array as a block.

Parameters

[in]	position	Element index.
[out]	block	Block which contains the element at `position`.

Returns: Start index of the block. The requested element can be found within the block at position - start index.

◆ GetBlock() [3/4]

MAXON_ATTRIBUTE_FORCE_INLINE Iterator GetBlock	(	Iterator	position,
		Block< T, STRIDED > &	block
	)

Determines a contiguous block of array elements which contains the element at position. For a BaseArray, this yields the whole array as a block.

Parameters

[in]	position	Element position.
[out]	block	Block which contains the element at `position`.

Returns: Start iterator of the block. The requested element can be found within the block at index position - start iterator.

◆ GetBlock() [4/4]

MAXON_ATTRIBUTE_FORCE_INLINE Iterator GetBlock	(	Iterator	position,
		Block< const T, STRIDED > &	block
	)		const

Determines a contiguous block of array elements which contains the element at position. For a BaseArray, this yields the whole array as a block.

Parameters

[in]	position	Element position.
[out]	block	Block which contains the element at `index`.

Returns: Start iterator of the block. The requested element can be found within the block at index position - start iterator.

◆ GetFirst() [1/2]

MAXON_ATTRIBUTE_FORCE_INLINE const T* GetFirst ( ) const

Returns the first element of the array.

Note: The PointerArray uses a separate memory blocks for each element. You must not and cannot use the pointer returned by GetFirst() to access the array elements like a continous block.

Returns: Pointer to the first element (nullptr if the array is empty).

◆ GetFirst() [2/2]

MAXON_ATTRIBUTE_FORCE_INLINE T* GetFirst ( )

Returns the first element of the array.

Note: The PointerArray uses a separate memory blocks for each element. You must not and cannot use the pointer returned by GetFirst() to access the array elements like a continous block.

Returns: Pointer to the first element (nullptr if the array is empty).

◆ GetLast() [1/2]

MAXON_ATTRIBUTE_FORCE_INLINE const T* GetLast ( ) const

Returns the last element of the array.

Returns: Pointer to the last element (nullptr if the array is empty).

◆ GetLast() [2/2]

MAXON_ATTRIBUTE_FORCE_INLINE T* GetLast ( )

Returns the last element of the array.

Returns: Pointer to the last element (nullptr if the array is empty).

◆ SetCapacityHint()

ResultMem SetCapacityHint	(	Int	requestedCapacity,
		COLLECTION_RESIZE_FLAGS	resizeFlags = `COLLECTION_RESIZE_FLAGS::ON_GROW_RESERVE_CAPACITY`
	)

Prepares the internal buffer(s) to hold at least the given number of elements with as few further memory allocations as possible.

Note: This is just a hint. It does not guarantee that the collection will be able to store the number of indicated elements.

Parameters

[in]	requestedCapacity	The desired internal capacity.
[in]	resizeFlags	If ON_GROW_FIT_TO_SIZE is set, the collection will use only as much memory as needed to hold the data.

Returns: False if allocation failed.

◆ Resize()

ResultMem Resize	(	Int	newCnt,
		COLLECTION_RESIZE_FLAGS	resizeFlags = `COLLECTION_RESIZE_FLAGS::DEFAULT`
	)

Resizes the array to contain newCnt elements. If newCnt is smaller than GetCount() all extra elements are being deleted. If it is greater the array is expanded and the default constructor is called for new elements.

Parameters

[in]	newCnt	New array size.
[in]	resizeFlags	See COLLECTION_RESIZE_FLAGS (flags other than ON_GROW_UNINITIALIZED/POD_UNINITIALIZED result in default behaviour).

Returns: False if allocation failed.

◆ Pop()

MAXON_ATTRIBUTE_FORCE_INLINE Bool Pop ( T * dst = nullptr )

Deletes the last element.

Parameters

[out] dst Nullptr or pointer to return value.

Returns: True if there was at least one element.

◆ PopPtr()

Bool PopPtr ( T ** dst )

PointerArray specific: Removes the last element and returns the pointer.

Parameters

[out] dst Used to return pointer to the last element (must not be null), the caller will take ownership of the element.

Returns: True if successful.

◆ GetIndex()

Int GetIndex ( const T & x ) const

Gets the index of the element. The element must be part of the array, otherwise (e.g. if x is a copy of an array element) InvalidArrayIndex will be returned. This is quite slow because GetIndex() has to iterate over the array.

Returns: Index of element or InvalidArrayIndex (not element of this).

◆ AppendAllImpl()

Result<void> AppendAllImpl	(	COLLECTION2 &&	other,
		COLLECTION_RESIZE_FLAGS	resizeFlags,
		Bool	overwrite,
		OverloadRank0
	)

private

Specialization of AppendAllImpl, used by BaseCollection::AppendAll.

◆ Swap()

MAXON_ATTRIBUTE_FORCE_INLINE void Swap	(	Iterator	a,
		Iterator	b
	)

Swaps elements a and b (just the pointers are swapped, this is more efficient than global Swap(array[a], array[b]).

Parameters

[in]	a	Position of element to be swapped.
[in]	b	Position of element to be swapped.

◆ GetMemorySize()

Int GetMemorySize ( ) const

Calculates the memory usage for this array. The array element class must have a public member GetMemorySize that returns an element's size.

Returns: Memory size in bytes.

◆ Begin() [1/2]

MAXON_ATTRIBUTE_FORCE_INLINE ConstIterator Begin ( ) const

Gets an iterator for the first element. When you modify the array Begin() will change, it is not a constant value.

Returns: Iterator for the first element (equal to End() if the array is empty).

◆ Begin() [2/2]

MAXON_ATTRIBUTE_FORCE_INLINE Iterator Begin ( )

Gets an iterator for the first element. When you modify the array Begin() will change, it is not a constant value.

Returns: Iterator for the first element (equal to End() if the array is empty).

◆ End() [1/2]

MAXON_ATTRIBUTE_FORCE_INLINE ConstIterator End ( ) const

Gets an iterator for the end (End() - 1 is the last element if the array is not empty). When you modify the array End() will change, it is not a constant value.

Returns: Iterator for the array end (points behind the last element).

◆ End() [2/2]

MAXON_ATTRIBUTE_FORCE_INLINE Iterator End ( )

Gets an iterator for the end (End() - 1 is the last element if the array is not empty). When you modify the array End() will change, it is not a constant value.

Returns: Iterator for the array end (points behind the last element).

◆ Disconnect()

Block<T*> Disconnect ( )

Disconnects the array's memory buffer and returns it as a block. Afterwards the array is in the same state as directly after its construction.

Returns: The buffer consisting of pointers to elements of type T.

Note: The memory needs to be freed with the allocator that the array is using.

◆ GetAllocator()

ALLOCATOR& GetAllocator ( )

Returns the allocator as reference. Typically this is used by the arrays and other base classes when multiple of them are "stiched" together as one big object all shall use one main allocator.

Returns: Allocator reference.

◆ GetUnderlyingArray() [1/2]

Array& GetUnderlyingArray ( )

Returns the underlying array which stores the pointers to the elements.

Returns: Array with pointers.

◆ GetUnderlyingArray() [2/2]

const Array& GetUnderlyingArray ( ) const

Returns the underlying array which stores the pointers to the elements.

Returns: Array with pointers.

◆ Alloc()

T* Alloc ( )

private

◆ AllocPointers()

T** AllocPointers ( Int cnt )

private

◆ Free()

void Free ( X *& p )

private

Member Data Documentation

◆ _ptr

Array _ptr

private

Detailed Description

template<typename T, Int MINCHUNKSIZE = BASEARRAY_DEFAULT_CHUNK_SIZE, typename ALLOCATOR = DefaultAllocator> class maxon::PointerArray< T, MINCHUNKSIZE, ALLOCATOR >

Classes

Public Types

Public Member Functions

Private Member Functions

Private Attributes

Additional Inherited Members

Member Typedef Documentation

◆ Array

◆ AllocatorType

◆ Iterator

◆ ConstIterator

Constructor & Destructor Documentation

◆ PointerArray() [1/3]

◆ PointerArray() [2/3]

◆ ~PointerArray()

◆ PointerArray() [3/3]

Member Function Documentation

◆ MAXON_DISALLOW_COPY_AND_ASSIGN()

◆ MAXON_OPERATOR_MOVE_ASSIGNMENT()

◆ Reset()

◆ Flush()

◆ GetCount()

◆ GetCapacityCount()

◆ operator[]() [1/2]

◆ operator[]() [2/2]

◆ Append() [1/3]

◆ Append() [2/3]

◆ AppendBlock()

◆ Append() [3/3]

◆ AppendPtr()

◆ Insert() [1/8]

◆ Insert() [2/8]

◆ Insert() [3/8]

◆ Insert() [4/8]

◆ Insert() [5/8]

◆ Insert() [6/8]

◆ InsertPtr()

◆ InsertBlock() [1/2]

◆ Insert() [7/8]

◆ InsertBlock() [2/2]

◆ Insert() [8/8]

◆ Erase() [1/2]

◆ Erase() [2/2]

◆ ErasePtr()

◆ SwapErase() [1/2]

◆ SwapErase() [2/2]

◆ GetBlock() [1/4]

◆ GetBlock() [2/4]

◆ GetBlock() [3/4]

◆ GetBlock() [4/4]

◆ GetFirst() [1/2]

◆ GetFirst() [2/2]

◆ GetLast() [1/2]

◆ GetLast() [2/2]

◆ SetCapacityHint()

◆ Resize()

◆ Pop()

◆ PopPtr()

◆ GetIndex()

◆ AppendAllImpl()

◆ Swap()

◆ GetMemorySize()

◆ Begin() [1/2]

◆ Begin() [2/2]

◆ End() [1/2]

◆ End() [2/2]

◆ Disconnect()

◆ GetAllocator()

◆ GetUnderlyingArray() [1/2]

◆ GetUnderlyingArray() [2/2]

◆ Alloc()

◆ AllocPointers()

◆ Free()

Member Data Documentation

◆ _ptr

template<typename T, Int MINCHUNKSIZE = BASEARRAY_DEFAULT_CHUNK_SIZE, typename ALLOCATOR = DefaultAllocator>
class maxon::PointerArray< T, MINCHUNKSIZE, ALLOCATOR >