#include <NCollection_SparseArray.hxx>

Inheritance diagram for NCollection_SparseArray< TheItemType >:

Data Structures
class	ConstIterator

class	Iterator

Public Member Functions
	NCollection_SparseArray (Standard_Size theIncrement)
	Constructor; accepts size of blocks.

NCollection_SparseArray &	Assign (const NCollection_SparseArray &theOther)
	Explicit assignment operator.

void	Exchange (NCollection_SparseArray &theOther)
	Exchange the data of two arrays; can be used primarily to move contents of theOther into the new array in a fast way (without creation of duplicated data)

virtual	~NCollection_SparseArray ()
	Destructor.

Array-like interface (in addition to inherited methods)
const TheItemType &	Value (const Standard_Size theIndex) const
	Direct const access to the item.

const TheItemType &	operator() (const Standard_Size theIndex) const
	Const access to the item - operator()

TheItemType &	ChangeValue (const Standard_Size theIndex)
	Modification access to the item.

TheItemType &	operator() (const Standard_Size theIndex)
	Access to the item - operator()

TheItemType &	SetValue (const Standard_Size theIndex, const TheItemType &theValue)
	Set a value at specified index method.

DataMap-like interface
Standard_Size	Extent () const
	Returns number of items in the array.

Standard_Boolean	IsEmpty () const
	Returns True if array is empty.

const TheItemType &	Find (const Standard_Size theIndex) const
	Direct const access to the item.

TheItemType &	ChangeFind (const Standard_Size theIndex)
	Modification access to the item.

TheItemType &	Bind (const Standard_Size theIndex, const TheItemType &theValue)
	Set a value as explicit method.

Standard_Boolean	IsBound (const Standard_Size theIndex) const
	Returns True if the item is defined.

Standard_Boolean	UnBind (const Standard_Size theIndex)
	Remove the item from array.

Public Member Functions inherited from NCollection_SparseArrayBase
void	Clear ()
	Clears all the data.

Standard_Size	Size () const
	Returns number of currently contained items.

Standard_Boolean	HasValue (const Standard_Size theIndex) const
	Check whether the value at given index is set.

Standard_Boolean	UnsetValue (const Standard_Size theIndex)
	Deletes the item from the array; returns True if that item was defined.

Additional Inherited Members
Protected Member Functions inherited from NCollection_SparseArrayBase
	NCollection_SparseArrayBase (Standard_Size theItemSize, Standard_Size theBlockSize)
	Constructor; initialized by size of item and of block (in items)

virtual	~NCollection_SparseArrayBase ()
	Destructor.

Block	getBlock (const Standard_Address theAddr) const
	Creates Block structure for block pointed by theAddr.

Standard_Address	getItem (const Block &theBlock, Standard_Size theInd) const
	Find address of the item in the block by index (in the block)

Standard_Address	getValue (const Standard_Size theIndex) const
	Direct const access to the item.

Standard_Address	setValue (const Standard_Size theIndex, const Standard_Address theValue)
	Set a value to the specified item; returns address of the set item.

void	assign (const NCollection_SparseArrayBase &theOther)
	Copy contents of theOther to this; assumes that this and theOther have exactly the same type of arguments.

void	exchange (NCollection_SparseArrayBase &theOther)
	Exchange contents of theOther and this; assumes that this and theOther have exactly the same type of arguments.

Protected Attributes inherited from NCollection_SparseArrayBase
Standard_Size	myItemSize
	size of item

Standard_Size	myBlockSize
	block size (in items)

Standard_Size	myNbBlocks
	allocated size of blocks table

Standard_Size	mySize
	number of currently defined items

Standard_Address *	myData
	array of pointers to data blocks

Detailed Description

template<class TheItemType>
class NCollection_SparseArray< TheItemType >

Dynamically resizable sparse array of objects

This class is similar to NCollection_Vector: it works like virtually unlimited array of items accessible by index; however unlike simple Vector it distinguishes items that have been set from the ones that have not been set explicitly.

This class can be also seen as equivalence of NCollection_DataMap<Standard_Integer,TheItemType> with the only one practical difference: it can be much less memory-expensive if items are small (e.g. Integer or Handle).

The index starts from 0, i.e. should be non-negative. Memory is allocated when item is set by SetValue().

Iterator returns only defined items; the item can be tested for being defined by IsSet(), and undefined by UnsetValue().

The attempt to access the item that has not been set will result in OutOfRange exception in Debug mode; in Release mode this will either return null-filled object or cause access violation.

Data Structures

Public Member Functions

Additional Inherited Members

Detailed Description

Constructor & Destructor Documentation

◆ NCollection_SparseArray()

◆ ~NCollection_SparseArray()

Member Function Documentation

◆ Assign()

◆ Bind()

◆ ChangeFind()

◆ ChangeValue()

◆ Exchange()

◆ Extent()

◆ Find()

◆ IsBound()

◆ IsEmpty()

◆ operator()() [1/2]

◆ operator()() [2/2]

◆ SetValue()

◆ UnBind()

◆ Value()