GomoryHu< GR, CAP >::MinCutEdgeIt Class Reference

Detailed Description

template<typename GR, typename CAP>
class lemon::GomoryHu< GR, CAP >::MinCutEdgeIt

This iterator class lists the edges of a minimum cut found by GomoryHu. Before using it, you must allocate a GomoryHu class and call its run() method.

This example computes the value of the minimum cut separating s from t.

GomoryHu<Graph> gom(g, capacities);
gom.run();
int value=0;
for(GomoryHu<Graph>::MinCutEdgeIt e(gom,s,t); e!=INVALID; ++e)
  value+=capacities[e];

The result will be the same as the value returned by gom.minCutValue(s,t).

#include <lemon/gomory_hu.h>

Public Member Functions
	MinCutEdgeIt (GomoryHu const &gomory, const Node &s, const Node &t, bool side=true)
	Constructor.
	operator typename Graph::Arc () const
	Conversion to Arc.
	operator typename Graph::Edge () const
	Conversion to Edge.
MinCutEdgeIt &	operator++ ()
	Next edge.
Graph::Arc	operator++ (int)
	Postfix incrementation.

Constructor & Destructor Documentation

MinCutEdgeIt()

template<typename GR, typename CAP>

MinCutEdgeIt ( GomoryHu const & gomory, const Node & s, const Node & t, bool side = true )

inline

Constructor.

Parameters

gomory	The GomoryHu class. You must call its run() method before initializing this iterator.
s	The base node.
t	The node you want to separate from node s.
side	If it is true (default) then the listed arcs will be oriented from the nodes of the component containing s, otherwise they will be oriented in the opposite direction.

Member Function Documentation

operator typename Graph::Arc()

template<typename GR, typename CAP>

operator typename Graph::Arc ( ) const

inline

Conversion to Arc.

operator typename Graph::Edge()

template<typename GR, typename CAP>

operator typename Graph::Edge ( ) const

inline

Conversion to Edge.

operator++() [1/2]

template<typename GR, typename CAP>

MinCutEdgeIt & operator++ ( )

inline

Next edge.

operator++() [2/2]

template<typename GR, typename CAP>

Graph::Arc operator++ ( int )

inline

Postfix incrementation.

Warning

This incrementation returns an Arc, not a MinCutEdgeIt, as one may expect.