TUNGraph::TEdgeI Class Reference

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

#include <graph.h>

Collaboration diagram for TUNGraph::TEdgeI:

List of all members.

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.
bool	operator< (const TEdgeI &EdgeI) const
bool	operator== (const TEdgeI &EdgeI) const
int	GetId () const
	Gets edge ID. Always returns -1 since only edges in multigraphs have explicit IDs.
int	GetSrcNId () const
	Gets the source of an edge. Since the graph is undirected this is the node with smaller ID of the edge endpoints.
int	GetDstNId () const
	Gets destination of an edge. Since the graph is undirected this is the node with greater ID of the edge endpoints.
Private Attributes
TNodeI	CurNode
TNodeI	EndNode
int	CurEdge
Friends
class	TUNGraph

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Detailed Description

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

Definition at line 111 of file graph.h.

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Constructor & Destructor Documentation

TUNGraph::TEdgeI::TEdgeI

(

)

[inline]

Definition at line 116 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 117 of file graph.h.

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

TUNGraph::TEdgeI::TEdgeI

(

const TEdgeI &

EdgeI

)

[inline]

Definition at line 118 of file graph.h.

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

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Member Function Documentation

int TUNGraph::TEdgeI::GetDstNId

(

)

const [inline]

Gets destination of an edge. Since the graph is undirected this is the node with greater ID of the edge endpoints.

Definition at line 129 of file graph.h.

References CurEdge, CurNode, and TUNGraph::TNodeI::GetOutNId().

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

{ return CurNode.GetOutNId(CurEdge); }

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int TUNGraph::TEdgeI::GetId

(

)

const [inline]

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

Definition at line 125 of file graph.h.

{ return -1; }

int TUNGraph::TEdgeI::GetSrcNId

(

)

const [inline]

Gets the source of an edge. Since the graph is undirected this is the node with smaller ID of the edge endpoints.

Definition at line 127 of file graph.h.

References CurNode, and 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 121 of file graph.h.

References CurEdge, CurNode, EndNode, 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 122 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 119 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 123 of file graph.h.

References CurEdge, and CurNode.

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

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Friends And Related Function Documentation

friend class TUNGraph [friend]

Definition at line 130 of file graph.h.

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Member Data Documentation

int TUNGraph::TEdgeI::CurEdge [private]

Definition at line 114 of file graph.h.

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

TNodeI TUNGraph::TEdgeI::CurNode [private]

Definition at line 113 of file graph.h.

Referenced by GetDstNId(), GetSrcNId(), operator++(), operator<(), operator=(), and operator==().

TNodeI TUNGraph::TEdgeI::EndNode [private]

Definition at line 113 of file graph.h.

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

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

• snap-core/graph.h