Teuchos::Hashtable< Key, Value > Class Template Reference

Templated hashtable class. More...

#include <Teuchos_Hashtable.hpp>

List of all members.

Public Member Functions
	Hashtable (int capacity=101, double rehashDensity=0.8)
	Create an empty Hashtable.
bool	containsKey (const Key &key) const
	Check for the presence of a key.
const Value &	get (const Key &key) const
	Get the value indexed by key.
void	put (const Key &key, const Value &value)
	Put a new (key, value) pair in the table.
void	remove (const Key &key)
	Remove from the table the element given by key.
int	size () const
	Get the number of elements in the table.
void	arrayify (Array< Key > &keys, Array< Value > &values) const
	Get lists of keys and values in Array form.
double	avgDegeneracy () const
	Return the average degeneracy (average number of entries per hash code).
double	density () const
	Return the density of the hashtable (num entries / capacity)
void	setRehashDensity (double rehashDensity)
	Set the density at which to do a rehash.
std::string	toString () const
	Write to a std::string.
Private Member Functions
void	rehash ()
int	nextPrime (int newCap) const
void	accumulateAvgFill (int n) const
Private Attributes
Array< Array< HashPair< Key, Value > > >	data_
int	count_
int	capacity_
Value	mostRecentValue_
Key	mostRecentKey_
size_t	nHits_
double	avgDegeneracy_
double	rehashDensity_
Related Functions
(Note that these are not member functions.)
template<class Key , class Value >
std::ostream &	operator<< (std::ostream &os, const Hashtable< Key, Value > &h)
	Write Hashtable to a stream.

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Detailed Description

template<class Key, class Value>
class Teuchos::Hashtable< Key, Value >

Templated hashtable class.

Author:

Kevin Long

Definition at line 80 of file Teuchos_Hashtable.hpp.

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Constructor & Destructor Documentation

template<class Key , class Value >

Teuchos::Hashtable< Key, Value >::Hashtable	(	int	capacity = 101,
		double	rehashDensity = 0.8
	)		[inline]

Create an empty Hashtable.

Definition at line 145 of file Teuchos_Hashtable.hpp.

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Member Function Documentation

template<class Key , class Value >

bool Teuchos::Hashtable< Key, Value >::containsKey

(

const Key &

key

)

const [inline]

Check for the presence of a key.

Definition at line 157 of file Teuchos_Hashtable.hpp.

template<class Key , class Value >

const Value & Teuchos::Hashtable< Key, Value >::get

(

const Key &

key

)

const [inline]

Get the value indexed by key.

Definition at line 282 of file Teuchos_Hashtable.hpp.

template<class Key , class Value >

void Teuchos::Hashtable< Key, Value >::put	(	const Key &	key,
		const Value &	value
	)		[inline]

Put a new (key, value) pair in the table.

Definition at line 176 of file Teuchos_Hashtable.hpp.

template<class Key , class Value >

void Teuchos::Hashtable< Key, Value >::remove

(

const Key &

key

)

[inline]

Remove from the table the element given by key.

Definition at line 309 of file Teuchos_Hashtable.hpp.

template<class Key, class Value>

int Teuchos::Hashtable< Key, Value >::size

(

)

const [inline]

Get the number of elements in the table.

Definition at line 100 of file Teuchos_Hashtable.hpp.

template<class Key , class Value >

void Teuchos::Hashtable< Key, Value >::arrayify	(	Array< Key > &	keys,
		Array< Value > &	values
	)		const [inline]

Get lists of keys and values in Array form.

Definition at line 228 of file Teuchos_Hashtable.hpp.

template<class Key, class Value>

double Teuchos::Hashtable< Key, Value >::avgDegeneracy

(

)

const [inline]

Return the average degeneracy (average number of entries per hash code).

Definition at line 106 of file Teuchos_Hashtable.hpp.

template<class Key, class Value>

double Teuchos::Hashtable< Key, Value >::density

(

)

const [inline]

Return the density of the hashtable (num entries / capacity)

Definition at line 109 of file Teuchos_Hashtable.hpp.

template<class Key, class Value>

void Teuchos::Hashtable< Key, Value >::setRehashDensity

(

double

rehashDensity

)

[inline]

Set the density at which to do a rehash.

template<class Key , class Value >

std::string Teuchos::Hashtable< Key, Value >::toString

(

)

const [inline]

Write to a std::string.

Definition at line 244 of file Teuchos_Hashtable.hpp.

template<class Key , class Value >

void Teuchos::Hashtable< Key, Value >::rehash

(

)

[inline, private]

Definition at line 210 of file Teuchos_Hashtable.hpp.

template<class Key, class Value>

int Teuchos::Hashtable< Key, Value >::nextPrime

(

int

newCap

)

const [inline, private]

template<class Key , class Value >

void Teuchos::Hashtable< Key, Value >::accumulateAvgFill

(

int

n

)

const [inline, private]

Definition at line 334 of file Teuchos_Hashtable.hpp.

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Friends And Related Function Documentation

template<class Key , class Value >

std::ostream & operator<<	(	std::ostream &	os,
		const Hashtable< Key, Value > &	h
	)		[related]

Write Hashtable to a stream.

Definition at line 341 of file Teuchos_Hashtable.hpp.

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Member Data Documentation

template<class Key, class Value>

Array<Array<HashPair<Key, Value> > > Teuchos::Hashtable< Key, Value >::data_ [private]

Definition at line 124 of file Teuchos_Hashtable.hpp.

template<class Key, class Value>

int Teuchos::Hashtable< Key, Value >::count_ [private]

Definition at line 125 of file Teuchos_Hashtable.hpp.

template<class Key, class Value>

int Teuchos::Hashtable< Key, Value >::capacity_ [private]

Definition at line 126 of file Teuchos_Hashtable.hpp.

template<class Key, class Value>

Value Teuchos::Hashtable< Key, Value >::mostRecentValue_ [mutable, private]

Definition at line 127 of file Teuchos_Hashtable.hpp.

template<class Key, class Value>

Key Teuchos::Hashtable< Key, Value >::mostRecentKey_ [mutable, private]

Definition at line 128 of file Teuchos_Hashtable.hpp.

template<class Key, class Value>

size_t Teuchos::Hashtable< Key, Value >::nHits_ [mutable, private]

Definition at line 130 of file Teuchos_Hashtable.hpp.

template<class Key, class Value>

double Teuchos::Hashtable< Key, Value >::avgDegeneracy_ [mutable, private]

Definition at line 131 of file Teuchos_Hashtable.hpp.

template<class Key, class Value>

double Teuchos::Hashtable< Key, Value >::rehashDensity_ [private]

Definition at line 132 of file Teuchos_Hashtable.hpp.

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

• Teuchos_Hashtable.hpp