Indexed 2-dimensional arrays using hashing for element access. More...

#include <ogdf/basic/HashArray2D.h>

Inheritance diagram for ogdf::HashArray2D< I1, I2, E, H1, H2 >:

Public Types
using	const_iterator = HashConstIterator2D< I1, I2, E, H1, H2 >
	The type of const-iterators for 2D-hash arrays.

Public Member Functions
	HashArray2D ()
	Creates a 2D-hash array.

	HashArray2D (const E &defaultValue, const H1 &hashFunc1=H1(), const H2 &hashFunc2=H2())
	Creates a 2D-hash array and sets the default value to `defaultValue`.

	HashArray2D (const HashArray2D< I1, I2, E, H1, H2 > &A)
	Copy constructor.

	~HashArray2D ()

HashConstIterator2D< I1, I2, E, H1, H2 >	begin () const
	Returns an iterator pointing to the first element.

void	clear ()
	Undefines all indices.

int	empty () const
	Returns if any indices are defined.

bool	isDefined (const I1 &i, const I2 &j) const
	Returns true iff entry (`i`,`j`) is defined.

E &	operator() (const I1 &i, const I2 &j)
	Returns a reference to entry (`i`,`j`).

const E &	operator() (const I1 &i, const I2 &j) const
	Returns a const reference to entry (`i`,`j`).

HashArray2D &	operator= (const HashArray2D< I1, I2, E, H1, H2 > &A)
	Assignment operator.

int	size () const
	Returns the number of defined elements in the table.

void	undefine (const I1 &i, const I2 &j)
	Undefines the entry at index (`i`,`j`).

Private Attributes
E	m_defaultValue
	The default value of the array.

Additional Inherited Members
Private Types inherited from ogdf::Hashing< K, I, H >
using	const_iterator = HashConstIterator< K, I, H >
	The type of const-iterators for hash tables.

Private Member Functions inherited from ogdf::Hashing< K, I, H >
	Hashing (const Hashing< K, I, H > &h)=default
	Copy constructor.

	Hashing (int minTableSize=256, const H &hashFunc=H())
	Creates a hash table for given initial table size `minTableSize`.

	~Hashing ()
	Destruction.

HashConstIterator< K, I, H >	begin () const
	Returns an hash iterator to the first element in the list of all elements.

void	clear ()
	Removes all elements from the hash table.

void	del (const K &key)
	Removes the element with key `key` from the hash table (does nothing if no such element).

bool	empty () const
	Returns true iff the table is empty, i.e., contains no elements.

HashElement< K, I > *	fastInsert (const K &key, const I &info)
	Inserts a new element with key `key` and information `info` into the hash table.

HashElement< K, I > *	insert (const K &key, const I &info)
	Inserts a new element with key `key` and information `info` into the hash table.

HashElement< K, I > *	insertByNeed (const K &key, const I &info)
	Inserts a new element with key `key` and information `info` into the hash table.

HashElement< K, I > *	lookup (const K &key) const
	Returns the hash element with key `key` in the hash table; returns `nullptr` if no such element exists.

bool	member (const K &key) const
	Returns true iff the hash table contains an element with key `key`.

Hashing< K, I, H > &	operator= (const Hashing< K, I, H > &hashing)=default
	Assignment operator.

int	size () const
	Returns the number of elements in the hash table.

HashElement< K, I > *	firstElement (HashElement< K, I > ***pList) const
	Returns the first element in the list of all elements in the hash table.

HashElement< K, I > *	nextElement (HashElement< K, I > **pList, HashElement< K, I > pElement) const
	Returns the successor of `pElement` in the list of all elements in the hash table.

Detailed Description

template<class I1, class I2, class E, class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>
class ogdf::HashArray2D< I1, I2, E, H1, H2 >

Indexed 2-dimensional arrays using hashing for element access.

Template Parameters

I1	is the first index type.
I2	is the second index type.
E	is the element type.
H1	is the hash function type for I1. Optional; uses the class DefHashFunc by default.
H2	is the hash function type for I2. Optional; uses the class DefHashFunc by default.

A 2D-hash array can be used like a usual 2-dimensional array but with a general index type.

Definition at line 59 of file HashArray2D.h.

Member Typedef Documentation

◆ const_iterator

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

using ogdf::HashArray2D< I1, I2, E, H1, H2 >::const_iterator = HashConstIterator2D<I1, I2, E, H1, H2>

The type of const-iterators for 2D-hash arrays.

Definition at line 62 of file HashArray2D.h.

Constructor & Destructor Documentation

◆ HashArray2D() [1/3]

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

ogdf::HashArray2D< I1, I2, E, H1, H2 >::HashArray2D ( )

inline

Creates a 2D-hash array.

Definition at line 65 of file HashArray2D.h.

◆ HashArray2D() [2/3]

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

ogdf::HashArray2D< I1, I2, E, H1, H2 >::HashArray2D	(	const E &	defaultValue,
		const H1 &	hashFunc1 = `H1()`,
		const H2 &	hashFunc2 = `H2()`
	)

inlineexplicit

Creates a 2D-hash array and sets the default value to defaultValue.

Definition at line 68 of file HashArray2D.h.

◆ HashArray2D() [3/3]

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

ogdf::HashArray2D< I1, I2, E, H1, H2 >::HashArray2D ( const HashArray2D< I1, I2, E, H1, H2 > & A )

inline

Copy constructor.

Definition at line 75 of file HashArray2D.h.

◆ ~HashArray2D()

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

ogdf::HashArray2D< I1, I2, E, H1, H2 >::~HashArray2D ( )

inline

Definition at line 87 of file HashArray2D.h.

Member Function Documentation

◆ begin()

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

HashConstIterator2D< I1, I2, E, H1, H2 > ogdf::HashArray2D< I1, I2, E, H1, H2 >::begin ( ) const

inline

Returns an iterator pointing to the first element.

Definition at line 121 of file HashArray2D.h.

◆ clear()

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

void ogdf::HashArray2D< I1, I2, E, H1, H2 >::clear ( )

inline

Undefines all indices.

Definition at line 133 of file HashArray2D.h.

◆ empty()

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

int ogdf::HashArray2D< I1, I2, E, H1, H2 >::empty ( ) const

inline

Returns if any indices are defined.

Definition at line 130 of file HashArray2D.h.

◆ isDefined()

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

bool ogdf::HashArray2D< I1, I2, E, H1, H2 >::isDefined	(	const I1 &	i,
		const I2 &	j
	)		const

inline

Returns true iff entry (i,j) is defined.

Definition at line 110 of file HashArray2D.h.

◆ operator()() [1/2]

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

E & ogdf::HashArray2D< I1, I2, E, H1, H2 >::operator()	(	const I1 &	i,
		const I2 &	j
	)

inline

Returns a reference to entry (i,j).

Definition at line 98 of file HashArray2D.h.

◆ operator()() [2/2]

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

const E & ogdf::HashArray2D< I1, I2, E, H1, H2 >::operator()	(	const I1 &	i,
		const I2 &	j
	)		const

inline

Returns a const reference to entry (i,j).

Definition at line 90 of file HashArray2D.h.

◆ operator=()

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

HashArray2D & ogdf::HashArray2D< I1, I2, E, H1, H2 >::operator= ( const HashArray2D< I1, I2, E, H1, H2 > & A )

inline

Assignment operator.

Definition at line 80 of file HashArray2D.h.

◆ size()

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

int ogdf::HashArray2D< I1, I2, E, H1, H2 >::size ( ) const

inline

Returns the number of defined elements in the table.

Definition at line 127 of file HashArray2D.h.

◆ undefine()

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

void ogdf::HashArray2D< I1, I2, E, H1, H2 >::undefine	(	const I1 &	i,
		const I2 &	j
	)

inline

Undefines the entry at index (i,j).

Definition at line 116 of file HashArray2D.h.

Member Data Documentation

◆ m_defaultValue

template<class I1 , class I2 , class E , class H1 = DefHashFunc<I1>, class H2 = DefHashFunc<I2>>

E ogdf::HashArray2D< I1, I2, E, H1, H2 >::m_defaultValue

private

The default value of the array.

Definition at line 136 of file HashArray2D.h.

The documentation for this class was generated from the following file:

include/ogdf/basic/HashArray2D.h

OpenGraph DrawingFramework

Public Types

Public Member Functions

Private Attributes

Additional Inherited Members

Detailed Description

Member Typedef Documentation

◆ const_iterator

Constructor & Destructor Documentation

◆ HashArray2D() [1/3]

◆ HashArray2D() [2/3]

◆ HashArray2D() [3/3]

◆ ~HashArray2D()

Member Function Documentation

◆ begin()

◆ clear()

◆ empty()

◆ isDefined()

◆ operator()() [1/2]

◆ operator()() [2/2]

◆ operator=()

◆ size()

◆ undefine()

Member Data Documentation

◆ m_defaultValue

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Graph Drawing
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