Stores and searches node tables. More...

#include <hash.h>

Inheritance diagram for Hermes::Hermes2D::HashTable:

Public Member Functions
Node *	get_node (int id) const
	Retrieves a node by its id number.

int	get_max_node_id () const
	Returns the maximum node id number plus one.

Node *	peek_vertex_node (int p1, int p2) const
	Returns a vertex node with parent id's p1 and p2 if it exists, nullptr otherwise.

Node *	peek_edge_node (int p1, int p2) const
	Returns an edge node with parent id's p1 and p2 if it exists, nullptr otherwise.

Array< Node > &	get_nodes ()

Protected Member Functions
int	get_num_nodes () const
	Returns the total number of nodes stored.

Node *	get_vertex_node (int p1, int p2)

Node *	get_edge_node (int p1, int p2)

void	init (int size=H2D_DEFAULT_HASH_SIZE)

void	copy (const HashTable *ht)
	Copies another hash table contents.

void	rebuild ()
	Reconstructs the hashtable, after, e.g., the nodes have been loaded from a file.

void	free ()
	Frees all memory used by the instance.

void	remove_vertex_node (int id)
	Removes a vertex node with parent id's p1 and p2.

void	remove_edge_node (int id)
	Removes an edge node with parent id's p1 and p2.

Detailed Description

Stores and searches node tables.

HashTable is a base class for Mesh. It serves as a container for all nodes of a mesh. Moreover, it has node searching functions based on hash tables.

Definition at line 39 of file hash.h.

Member Function Documentation

Node * Hermes::Hermes2D::HashTable::get_edge_node	(	int	p1,
		int	p2
	)

protected

Central function: obtains an edge node pointer given the id numbers of its parents. If the edge node does not exist, it is created first.

Definition at line 170 of file hash.cpp.

Node * Hermes::Hermes2D::HashTable::get_vertex_node	(	int	p1,
		int	p2
	)

protected

Central function: obtains a vertex node pointer given the id numbers of its parents. If the vertex node does not exist, it is created first.

Definition at line 141 of file hash.cpp.

void Hermes::Hermes2D::HashTable::init ( int size = H2D_DEFAULT_HASH_SIZE )

protected

Initializes the hash table.

Parameters

size[in] Hash table size; must be a power of two.

Definition at line 34 of file hash.cpp.

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