Public Member Functions

Digraph::Arc Class Reference

Detailed Description

This class identifies an arc of the digraph. It also serves as a base class of the arc iterators, thus they will convert to this type.

#include <lemon/concepts/digraph.h>

Inheritance diagram for Digraph::Arc:

List of all members.

Public Member Functions

 Arc ()
 Default constructor.
 Arc (const Arc &)
 Arc (Invalid)
 Invalid constructor & conversion.
bool operator== (Arc) const
 Equality operator.
bool operator!= (Arc) const
bool operator< (Arc) const
 Artificial ordering operator.

Constructor & Destructor Documentation

Arc ( ) [inline]

Default constructor.

It sets the object to an undefined value.
Arc ( const Arc ) [inline]

Copy constructor.

Arc ( Invalid  ) [inline]

Initializes the object to be invalid.

See also:
Invalid for more details.

Member Function Documentation

bool operator== ( Arc  ) const [inline]

Equality operator.

Two iterators are equal if and only if they point to the same object or both are INVALID.

bool operator!= ( Arc  ) const [inline]

Inequality operator.

bool operator< ( Arc  ) const [inline]

Artificial ordering operator.

This operator only has to define some strict ordering of the arcs; this order has nothing to do with the iteration ordering of the arcs.
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