Digraph::ArcIt Class Reference

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Detailed Description

This iterator goes through each arc of the digraph. Its usage is quite simple, for example, you can count the number of arcs in a digraph g of type Digraph as follows:

          int count=0;
          for(Digraph::ArcIt a(g); a!=INVALID; ++a) ++count;

#include <lemon/concepts/digraph.h>

Inheritance diagram for Digraph::ArcIt:

List of all members.

Public Member Functions
	ArcIt ()
	Default constructor.
	ArcIt (const ArcIt &e)
	ArcIt (Invalid)
	Invalid constructor & conversion.
	ArcIt (const Digraph &g)
	Sets the iterator to the first arc.
	ArcIt (const Digraph &, const Arc &)
	Sets the iterator to the given arc.
ArcIt &	operator++ ()
	Next arc.

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Constructor & Destructor Documentation

ArcIt

(

)

[inline]

Default constructor.

Warning:

It sets the iterator to an undefined value.

ArcIt

(

const ArcIt &

e

)

[inline]

Copy constructor.

ArcIt

(

Invalid

)

[inline]

Initializes the iterator to be invalid.

See also:

Invalid for more details.

ArcIt

(

const Digraph &

g

)

[inline, explicit]

Sets the iterator to the first arc of the given digraph.

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

Sets the iterator to the given arc of the given digraph.

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Member Function Documentation

ArcIt& operator++

(

)

[inline]

Assign the iterator to the next arc.