SNAP Library 4.0, Developer Reference  2017-07-27 13:18:06
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TNGraph::TEdgeI Class Reference

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

#include <graph.h>

Collaboration diagram for TNGraph::TEdgeI:

Public Member Functions

 TEdgeI ()
 
 TEdgeI (const TNodeI &NodeI, const TNodeI &EndNodeI, const int &EdgeN=0)
 
 TEdgeI (const TEdgeI &EdgeI)
 
TEdgeIoperator= (const TEdgeI &EdgeI)
 
TEdgeIoperator++ (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 node of the edge. More...
 
int GetDstNId () const
 Returns the destination node of the edge. More...
 

Private Attributes

TNodeI CurNode
 
TNodeI EndNode
 
int CurEdge
 

Friends

class TNGraph
 

Detailed Description

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

Definition at line 426 of file graph.h.

Constructor & Destructor Documentation

TNGraph::TEdgeI::TEdgeI ( )
inline

Definition at line 431 of file graph.h.

431 : CurNode(), EndNode(), CurEdge(0) { }
TNodeI CurNode
Definition: graph.h:428
TNodeI EndNode
Definition: graph.h:428
TNGraph::TEdgeI::TEdgeI ( const TNodeI NodeI,
const TNodeI EndNodeI,
const int &  EdgeN = 0 
)
inline

Definition at line 432 of file graph.h.

432 : CurNode(NodeI), EndNode(EndNodeI), CurEdge(EdgeN) { }
TNodeI CurNode
Definition: graph.h:428
TNodeI EndNode
Definition: graph.h:428
TNGraph::TEdgeI::TEdgeI ( const TEdgeI EdgeI)
inline

Definition at line 433 of file graph.h.

433 : CurNode(EdgeI.CurNode), EndNode(EdgeI.EndNode), CurEdge(EdgeI.CurEdge) { }
TNodeI CurNode
Definition: graph.h:428
TNodeI EndNode
Definition: graph.h:428

Member Function Documentation

int TNGraph::TEdgeI::GetDstNId ( ) const
inline

Returns the destination node of the edge.

Definition at line 445 of file graph.h.

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

Referenced by TNGraph::AddEdge().

445 { return CurNode.GetOutNId(CurEdge); }
TNodeI CurNode
Definition: graph.h:428
int GetOutNId(const int &NodeN) const
Returns ID of NodeN-th out-node (the node the current node points to).
Definition: graph.h:412

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int TNGraph::TEdgeI::GetId ( ) const
inline

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

Definition at line 441 of file graph.h.

441 { return -1; }
int TNGraph::TEdgeI::GetSrcNId ( ) const
inline

Returns the source node of the edge.

Definition at line 443 of file graph.h.

References CurNode, and TNGraph::TNodeI::GetId().

Referenced by TNGraph::AddEdge().

443 { return CurNode.GetId(); }
TNodeI CurNode
Definition: graph.h:428
int GetId() const
Returns ID of the current node.
Definition: graph.h:396

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TEdgeI& TNGraph::TEdgeI::operator++ ( int  )
inline

Increment iterator.

Definition at line 436 of file graph.h.

References CurEdge, CurNode, EndNode, and TNGraph::TNodeI::GetOutDeg().

436  { CurEdge++; if (CurEdge >= CurNode.GetOutDeg()) { CurEdge=0; CurNode++;
437  while (CurNode < EndNode && CurNode.GetOutDeg()==0) { CurNode++; } } return *this; }
TNodeI CurNode
Definition: graph.h:428
TNodeI EndNode
Definition: graph.h:428
int GetOutDeg() const
Returns out-degree of the current node.
Definition: graph.h:402

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bool TNGraph::TEdgeI::operator< ( const TEdgeI EdgeI) const
inline

Definition at line 438 of file graph.h.

References CurEdge, and CurNode.

438 { return CurNode<EdgeI.CurNode || (CurNode==EdgeI.CurNode && CurEdge<EdgeI.CurEdge); }
TNodeI CurNode
Definition: graph.h:428
TEdgeI& TNGraph::TEdgeI::operator= ( const TEdgeI EdgeI)
inline

Definition at line 434 of file graph.h.

References CurEdge, CurNode, and EndNode.

434 { if (this!=&EdgeI) { CurNode=EdgeI.CurNode; EndNode=EdgeI.EndNode; CurEdge=EdgeI.CurEdge; } return *this; }
TNodeI CurNode
Definition: graph.h:428
TNodeI EndNode
Definition: graph.h:428
bool TNGraph::TEdgeI::operator== ( const TEdgeI EdgeI) const
inline

Definition at line 439 of file graph.h.

References CurEdge, and CurNode.

439 { return CurNode == EdgeI.CurNode && CurEdge == EdgeI.CurEdge; }
TNodeI CurNode
Definition: graph.h:428

Friends And Related Function Documentation

friend class TNGraph
friend

Definition at line 446 of file graph.h.

Member Data Documentation

int TNGraph::TEdgeI::CurEdge
private

Definition at line 429 of file graph.h.

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

TNodeI TNGraph::TEdgeI::CurNode
private

Definition at line 428 of file graph.h.

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

TNodeI TNGraph::TEdgeI::EndNode
private

Definition at line 428 of file graph.h.

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


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