TUNGraph::TEdgeI Class Reference

Edge iterator. Only forward iteration (operator++) is supported. More...

#include <graph.h>

Collaboration diagram for TUNGraph::TEdgeI:

Public Member Functions
	TEdgeI ()
	TEdgeI (const TNodeI &NodeI, const TNodeI &EndNodeI, const int &EdgeN=0)
	TEdgeI (const TEdgeI &EdgeI)
TEdgeI &	operator= (const TEdgeI &EdgeI)
TEdgeI &	operator++ (int)
	Increment iterator. More...
bool	operator< (const TEdgeI &EdgeI) const
bool	operator== (const TEdgeI &EdgeI) const
int	GetId () const
	Returns edge ID. Always returns -1 since only edges in multigraphs have explicit IDs. More...
int	GetSrcNId () const
	Returns the source of the edge. Since the graph is undirected, this is the node with a smaller ID of the edge endpoints. More...
int	GetDstNId () const
	Returns the destination of the edge. Since the graph is undirected, this is the node with a greater ID of the edge endpoints. More...

Private Attributes
TNodeI	CurNode
TNodeI	EndNode
int	CurEdge

Friends
class	TUNGraph

Detailed Description

Edge iterator. Only forward iteration (operator++) is supported.

Definition at line 121 of file graph.h.

Constructor & Destructor Documentation

TUNGraph::TEdgeI::TEdgeI ( )

inline

Definition at line 126 of file graph.h.

: CurNode(), EndNode(), CurEdge(0) { }

TUNGraph::TEdgeI::TEdgeI ( const TNodeI &  NodeI, const TNodeI &  EndNodeI, const int &  EdgeN = 0  )

inline

Definition at line 127 of file graph.h.

: CurNode(NodeI), EndNode(EndNodeI), CurEdge(EdgeN) { }

TUNGraph::TEdgeI::TEdgeI ( const TEdgeI &  EdgeI )

inline

Definition at line 128 of file graph.h.

: CurNode(EdgeI.CurNode), EndNode(EdgeI.EndNode), CurEdge(EdgeI.CurEdge) { }

Member Function Documentation

int TUNGraph::TEdgeI::GetDstNId ( ) const

inline

Returns the destination of the edge. Since the graph is undirected, this is the node with a greater ID of the edge endpoints.

Definition at line 139 of file graph.h.

References TUNGraph::TNodeI::GetOutNId().

Referenced by TUNGraph::AddEdge(), and operator++().

{ return CurNode.GetOutNId(CurEdge); }

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int TUNGraph::TEdgeI::GetId ( ) const

inline

Returns edge ID. Always returns -1 since only edges in multigraphs have explicit IDs.

Definition at line 135 of file graph.h.

{ return -1; }

int TUNGraph::TEdgeI::GetSrcNId ( ) const

inline

Returns the source of the edge. Since the graph is undirected, this is the node with a smaller ID of the edge endpoints.

Definition at line 137 of file graph.h.

References TUNGraph::TNodeI::GetId().

Referenced by TUNGraph::AddEdge(), and operator++().

{ return CurNode.GetId(); }

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TEdgeI& TUNGraph::TEdgeI::operator++ ( int  )

inline

Increment iterator.

Definition at line 131 of file graph.h.

References GetDstNId(), TUNGraph::TNodeI::GetOutDeg(), and GetSrcNId().

{ do { CurEdge++; if (CurEdge >= CurNode.GetOutDeg()) { CurEdge=0; CurNode++; while (CurNode < EndNode && CurNode.GetOutDeg()==0) { CurNode++; } } } while (CurNode < EndNode && GetSrcNId()>GetDstNId()); return *this; }

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bool TUNGraph::TEdgeI::operator< ( const TEdgeI &  EdgeI ) const

inline

Definition at line 132 of file graph.h.

References CurEdge, and CurNode.

{ return CurNode<EdgeI.CurNode || (CurNode==EdgeI.CurNode && CurEdge<EdgeI.CurEdge); }

TEdgeI& TUNGraph::TEdgeI::operator= ( const TEdgeI &  EdgeI )

inline

Definition at line 129 of file graph.h.

References CurEdge, CurNode, and EndNode.

{ if (this!=&EdgeI) { CurNode=EdgeI.CurNode; EndNode=EdgeI.EndNode; CurEdge=EdgeI.CurEdge; } return *this; }

bool TUNGraph::TEdgeI::operator== ( const TEdgeI &  EdgeI ) const

inline

Definition at line 133 of file graph.h.

References CurEdge, and CurNode.

{ return CurNode == EdgeI.CurNode && CurEdge == EdgeI.CurEdge; }

Friends And Related Function Documentation

friend class TUNGraph

friend

Definition at line 140 of file graph.h.

Member Data Documentation

int TUNGraph::TEdgeI::CurEdge

private

Definition at line 124 of file graph.h.

Referenced by operator<(), operator=(), and operator==().

TNodeI TUNGraph::TEdgeI::CurNode

private

Definition at line 123 of file graph.h.

Referenced by operator<(), operator=(), and operator==().

TNodeI TUNGraph::TEdgeI::EndNode

private

Definition at line 123 of file graph.h.

Referenced by operator=().

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The documentation for this class was generated from the following file:

• snap-core/graph.h