tlp::ConnectedTest Class Reference

#include <ConnectedTest.h>

Inherits tlp::Observable.

Static Public Member Functions
static void	computeConnectedComponents (const Graph *graph, std::vector< std::set< node > > &components)
static bool	isConnected (const Graph *const graph)
static void	makeConnected (Graph *graph, std::vector< edge > &addedEdges)
static unsigned int	numberOfConnectedComponents (const Graph *const graph)
Static Public Member Functions inherited from tlp::Observable
static Observable *	getObject (tlp::node n)
static const tlp::VectorGraph &	getObservableGraph ()
static void	holdObservers ()
static bool	isAlive (tlp::node n)
static unsigned int	observersHoldCounter ()
static void	unholdObservers ()

Additional Inherited Members
Public Member Functions inherited from tlp::Observable
void	addListener (Observable *const listener) const
void	addObserver (Observable *const observer) const
unsigned int	countListeners () const
unsigned int	countObservers () const
unsigned int	getReceived () const
unsigned int	getSent () const
void	removeListener (Observable *const listener) const
void	removeObserver (Observable *const observerver) const
Protected Member Functions inherited from tlp::Observable
	Observable (const Observable &)
tlp::Iterator< tlp::Observable * > *	getObservables () const
bool	hasOnlookers () const
void	notifyObservers ()
void	observableDeleted ()
Observable &	operator= (const Observable &)
void	sendEvent (const Event &message)
virtual void	treatEvents (const std::vector< Event > &events)

Detailed Description

Performs a test of connexity on the graph, and provides a function to make a graph connected. From Wikipedia: "A graph is said to be connected if every pair of vertices in the graph are connected." (i.e. there is a path between every pair of vertices).

Definition at line 37 of file ConnectedTest.h.

Member Function Documentation

static void tlp::ConnectedTest::computeConnectedComponents ( const Graph *  graph, std::vector< std::set< node > > &  components  )

static

Computes the sets of connected components and stores the result in the components vector.

Parameters

graph	The graph on which to compute connected components.
components	The components that were found. It is passed as a reference to avoid copying the data when returning.

Returns

void

Note

The components parameter can be returned with c++11 thanks to move constructors without performance loss, chenge this function once c++11 compilers are used.

static bool tlp::ConnectedTest::isConnected ( const Graph *const  graph )

static

Checks if a graph is connected (i.e. there is a path between every pair of vertices).

Parameters

graph

The graph to check.

Returns

bool True if the graph is connected, false otherwise.

static void tlp::ConnectedTest::makeConnected ( Graph *  graph, std::vector< edge > &  addedEdges  )

static

If the graph is not connected, adds edges to make it connected.

Parameters

graph	The graph to make connected.
addedEdges	The edges that were added to make it connected.

Returns

void

static unsigned int tlp::ConnectedTest::numberOfConnectedComponents ( const Graph *const  graph )

static

Gets the number of connected components in the graph.

Parameters

graph

The graph in which to count the number of connected components.

Returns

unsigned int The number of connected componments.