Digraph::InArcIt Class Reference

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Detailed Description

This iterator goes trough the incoming arcs of a certain node of a digraph. Its usage is quite simple, for example you can count the number of outgoing arcs of a node n in digraph g of type Digraph as follows.

          int count=0;
          for(Digraph::InArcIt e(g, n); e!=INVALID; ++e) ++count;

#include <lemon/concepts/digraph.h>

Inheritance diagram for Digraph::InArcIt:

List of all members.

Public Member Functions
	InArcIt ()
	Default constructor.
	InArcIt (const InArcIt &e)
	InArcIt (Invalid)
	InArcIt (const Digraph &, const Node &)
	This constructor sets the iterator to first incoming arc.
	InArcIt (const Digraph &, const Arc &)
	Arc -> InArcIt conversion.
InArcIt &	operator++ ()
	Next incoming arc.

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Constructor & Destructor Documentation

InArcIt

(

)

[inline]

Warning:

The default constructor sets the iterator to an undefined value.

InArcIt

(

const InArcIt &

e

)

[inline]

Copy constructor.

InArcIt

(

Invalid

)

[inline]

Initialize the iterator to be invalid.

InArcIt	(	const Digraph &	,
		const Node &
	)		[inline]

This constructor set the iterator to the first incoming arc of the node.

InArcIt	(	const Digraph &	,
		const Arc &
	)		[inline]

Sets the iterator to the value of the trivial iterator e. This feature necessitates that each time we iterate the arc-set, the iteration order is the same.

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Member Function Documentation

InArcIt& operator++

(

)

[inline]

Assign the iterator to the next inarc of the corresponding node.