ytAdjGraph Class Reference

Graph by adjacent matrix. More...

Public Member Functions
ytAdjGraph *	ytAdjGraph_new (int nodes)
	Generates the new ytAdjGraph instance.
void	ytAdjGraph_delete (ytAdjGraph *this)
	Deletes the ytAdjGraph instance.
int	ytAdjGraph_numNodes (const ytAdjGraph *this)
	Returnts the number of nodes.
int	ytAdjGraph_numEdges (const ytAdjGraph *this)
	Returns the number of edges.
int	ytAdjGraph_checkEdge (const ytAdjGraph *this, int src, int dst)
	Checks if the specified edge exists in the graph. More...
int	ytAdjGraph_degree (const ytAdjGraph *this, int j)
	Returns the number of edges connected to the node.
int	ytAdjGraph_numParents (const ytAdjGraph *this, int j)
	Returns the number of parents of the specified node. More...
void	ytAdjGraph_addEdge (ytAdjGraph *this, int src, int dst)
	Adds an edge to the graph. More...
void	ytAdjGraph_removeEdge (ytAdjGraph *this, int src, int dst)
	Removes the edge. More...
ytGraphEdgeIter *	ytAdjGraph_edgeIter (const ytAdjGraph *this)
	Generates the ytGraphEdgeIter instance.
void	ytAdjGraph_edgeIterNext (const ytAdjGraph *this, ytGraphEdgeIter *iter)

Detailed Description

Graph by adjacent matrix.

Member Function Documentation

ytAdjGraph_addEdge()

void ytAdjGraph_addEdge	(	ytAdjGraph *	this,
		int	src,
		int	dst
	)

Adds an edge to the graph.

This does not check whether the src - dst edge exists already in the graph.

Parameters

this
src	index of the source node.
dst	index of the destination node.

ytAdjGraph_checkEdge()

int ytAdjGraph_checkEdge	(	const ytAdjGraph *	this,
		int	src,
		int	dst
	)

Checks if the specified edge exists in the graph.

Parameters

this	pointer to the ytAdjGraph instance. NULL acceptable. If so, this always returns 0.
src	index of starting node of the edge.
dst	index of ending node of the edge.

Returns

1 if the edge exists, or 0 otherwise.

ytAdjGraph_numParents()

int ytAdjGraph_numParents	(	const ytAdjGraph *	this,
		int	j
	)

Returns the number of parents of the specified node.

Note: This requires O(n) time where n is the number of nodes.

Parameters

this	pointer to the ytArgGraph instance.
j	node index.

Returns

the number of parents of the j -th node.

ytAdjGraph_removeEdge()

void ytAdjGraph_removeEdge	(	ytAdjGraph *	this,
		int	src,
		int	dst
	)

Removes the edge.

Parameters

this
src
dst

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

• math/ytAdjGraph.h
• math/ytAdjGraph.c