Dijkstra< GR, LEN, TR >::SetStandardHeap< H, CR > Struct Template Reference

Detailed Description

template<typename GR, typename LEN, typename TR>
template<class H, class CR = typename Digraph::template NodeMap<int>>
struct lemon::Dijkstra< GR, LEN, TR >::SetStandardHeap< H, CR >

Named parameter for setting heap and cross reference types with automatic allocation. They should have standard constructor interfaces to be able to automatically created by the algorithm (i.e. the digraph should be passed to the constructor of the cross reference and the cross reference should be passed to the constructor of the heap). However, external heap and cross reference objects could also be passed to the algorithm using the heap() function before calling run() or init().

See Also

SetHeap

#include <lemon/dijkstra.h>

Inheritance diagram for Dijkstra< GR, LEN, TR >::SetStandardHeap< H, CR >:

Additional Inherited Members
Public Types inherited from Dijkstra< Digraph, LengthMap, SetStandardHeapTraits< H, CR > >
typedef SetStandardHeapTraits < H, CR >::Digraph	Digraph
	The type of the digraph the algorithm runs on.
typedef SetStandardHeapTraits < H, CR >::Value	Value
	The type of the arc lengths.
typedef SetStandardHeapTraits < H, CR >::LengthMap	LengthMap
	The type of the map that stores the arc lengths.
typedef SetStandardHeapTraits < H, CR >::PredMap	PredMap
	The type of the map that stores the predecessor arcs of the shortest paths.
typedef SetStandardHeapTraits < H, CR >::DistMap	DistMap
	The type of the map that stores the distances of the nodes.
typedef SetStandardHeapTraits < H, CR >::ProcessedMap	ProcessedMap
	The type of the map that indicates which nodes are processed.
typedef PredMapPath< Digraph, PredMap >	Path
	The type of the paths.
typedef SetStandardHeapTraits < H, CR >::HeapCrossRef	HeapCrossRef
	The cross reference type used for the current heap.
typedef SetStandardHeapTraits < H, CR >::Heap	Heap
	The heap type used by the algorithm.
typedef SetStandardHeapTraits < H, CR >::OperationTraits	OperationTraits
	The operation traits class of the algorithm.
typedef SetStandardHeapTraits < H, CR >	Traits
	The traits class of the algorithm.
Public Member Functions inherited from Dijkstra< Digraph, LengthMap, SetStandardHeapTraits< H, CR > >
	Dijkstra (const Digraph &g, const LengthMap &length)
	Constructor.
	~Dijkstra ()
	Destructor.
Dijkstra &	lengthMap (const LengthMap &m)
	Sets the length map.
Dijkstra &	predMap (PredMap &m)
	Sets the map that stores the predecessor arcs.
Dijkstra &	processedMap (ProcessedMap &m)
	Sets the map that indicates which nodes are processed.
Dijkstra &	distMap (DistMap &m)
	Sets the map that stores the distances of the nodes.
Dijkstra &	heap (Heap &hp, HeapCrossRef &cr)
	Sets the heap and the cross reference used by algorithm.
const PredMap &	predMap () const
	Returns a const reference to the node map that stores the predecessor arcs.
const DistMap &	distMap () const
	Returns a const reference to the node map that stores the distances of the nodes.
Path	path (Node t) const
	The shortest path to the given node.
Value	dist (Node v) const
	The distance of the given node from the root(s).
Arc	predArc (Node v) const
	Returns the 'previous arc' of the shortest path tree for the given node.
Node	predNode (Node v) const
	Returns the 'previous node' of the shortest path tree for the given node.
bool	reached (Node v) const
	Checks if the given node is reached from the root(s).
bool	processed (Node v) const
	Checks if a node is processed.
Value	currentDist (Node v) const
	The current distance of the given node from the root(s).
void	init ()
void	addSource (Node s, Value dst=OperationTraits::zero())
	Adds a new source node.
Node	processNextNode ()
	Processes the next node in the priority heap.
Node	nextNode () const
	The next node to be processed.
bool	emptyQueue () const
	Returns false if there are nodes to be processed.
int	queueSize () const
	Returns the number of the nodes to be processed.
void	start ()
	Executes the algorithm.
void	start (Node t)
	Executes the algorithm until the given target node is processed.
Node	start (const NodeBoolMap &nm)
	Executes the algorithm until a condition is met.
void	run (Node s)
	Runs the algorithm from the given source node.
bool	run (Node s, Node t)
	Finds the shortest path between s and t.