Class: RGL::DFSIterator

### Home Classes Methods

### In Files

- lib/rgl/traversal.rb

### Parent

RGL::BFSIterator

### Methods

- #next_vertex

### Class/Module Index

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- RGL
- RGL::AdjacencyGraph
- RGL::BFSIterator
- RGL::BellmanFordAlgorithm
- RGL::BellmanFordVisitor
- RGL::BidirectionalGraph
- RGL::BipartiteBFSIterator
- RGL::DFSIterator
- RGL::DFSVisitor
- RGL::DOT
- RGL::DOT::Digraph
- RGL::DOT::DirectedEdge
- RGL::DOT::Edge
- RGL::DOT::Element
- RGL::DOT::Graph
- RGL::DOT::Node
- RGL::DOT::Port
- RGL::DOT::Subgraph
- RGL::DijkstraAlgorithm
- RGL::DijkstraVisitor
- RGL::DirectedAdjacencyGraph
- RGL::Edge
- RGL::Edge::DirectedEdge
- RGL::Edge::UnDirectedEdge
- RGL::EdgePropertiesMap
- RGL::EdmondsKarpAlgorithm
- RGL::EdmondsKarpAlgorithm::EdmondsKarpBFSIterator
- RGL::Graph
- RGL::Graph::TarjanSccVisitor
- RGL::GraphIterator
- RGL::GraphVisitor
- RGL::GraphVisitor::ClassMethods
- RGL::GraphVisitor::DistanceMapSupport
- RGL::ImplicitGraph
- RGL::MutableGraph
- RGL::MutableGraph::MutableGraphParser
- RGL::NoEdgeError
- RGL::NoVertexError
- RGL::NonNegativeEdgePropertiesMap
- RGL::NotDirectedError
- RGL::NotUndirectedError
- RGL::PrimAlgorithm
- RGL::TopsortIterator
- Enumerable
- Object

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# RGL::DFSIterator

Iterator for a depth first search, starting at a given vertex. The only difference from BFSIterator is that @waiting is a stack, instead of a queue.

Note that this is different from DFSVisitor, which is used in the recursive version for depth first search (see depth_first_search).

### Public Instance Methods

next_vertex() click to toggle source

    # File lib/rgl/traversal.rb, line 134
    def next_vertex
      # waiting is a stack
      @waiting.pop
    end

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