LEMON/LEMON-main Changeset - r787:c2230649a493

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Changeset - r787:c2230649a493

« 784:1a7fe3

788:c92296 »

r787:c2230649a493

Sun, 15 Nov 2009 19:57:02

[Not Reviewed]

0 comments (0 inline)

kpeter (Peter Kovacs)
kpeter@inf.elte.hu

Various doc improvements (#331) - Add notes to the graph classes about the time of item counting. - Clarify the doc for run() in BFS and DFS. - Other improvements.

0 11 0

default

11 files changed with 93 insertions and 43 deletions:

lemon/adaptors.h

lemon/bfs.h

lemon/dfs.h

lemon/dijkstra.h

lemon/edge_set.h

lemon/full_graph.h

lemon/grid_graph.h

lemon/hypercube_graph.h

lemon/list_graph.h

lemon/smart_graph.h

lemon/static_graph.h

↑ Collapse diff ↑

lemon/adaptors.h

Show inline comments

@@ -267,192 +267,195 @@
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename V>
 		    class ArcMap : public GR::template ArcMap<V> {
 		      typedef typename GR::template ArcMap<V> Parent;
 		    public:
 		      explicit ArcMap(const GraphAdaptorBase<GR>& adapter)
 		        : Parent(*adapter._graph) {}
 		      ArcMap(const GraphAdaptorBase<GR>& adapter, const V& value)
 		        : Parent(*adapter._graph, value) {}
 		    private:
 		      ArcMap& operator=(const ArcMap& cmap) {
 		        return operator=<ArcMap>(cmap);
+		      }
 		      template <typename CMap>
 		      ArcMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename V>
 		    class EdgeMap : public GR::template EdgeMap<V> {
 		      typedef typename GR::template EdgeMap<V> Parent;
 		    public:
 		      explicit EdgeMap(const GraphAdaptorBase<GR>& adapter)
 		        : Parent(*adapter._graph) {}
 		      EdgeMap(const GraphAdaptorBase<GR>& adapter, const V& value)
 		        : Parent(*adapter._graph, value) {}
 		    private:
 		      EdgeMap& operator=(const EdgeMap& cmap) {
 		        return operator=<EdgeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      EdgeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  };
 		  template <typename DGR>
 		  class ReverseDigraphBase : public DigraphAdaptorBase<DGR> {
 		    typedef DigraphAdaptorBase<DGR> Parent;
 		  public:
 		    typedef DGR Digraph;
 		  protected:
 		    ReverseDigraphBase() : Parent() { }
 		  public:
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    void firstIn(Arc& a, const Node& n) const { Parent::firstOut(a, n); }
 		    void firstOut(Arc& a, const Node& n ) const { Parent::firstIn(a, n); }
 		    void nextIn(Arc& a) const { Parent::nextOut(a); }
 		    void nextOut(Arc& a) const { Parent::nextIn(a); }
 		    Node source(const Arc& a) const { return Parent::target(a); }
 		    Node target(const Arc& a) const { return Parent::source(a); }
 		    Arc addArc(const Node& u, const Node& v) { return Parent::addArc(v, u); }
 		    typedef FindArcTagIndicator<DGR> FindArcTag;
 		    Arc findArc(const Node& u, const Node& v,
 		                const Arc& prev = INVALID) const {
 		      return Parent::findArc(v, u, prev);
+		    }
 		  };
 		  /// \ingroup graph_adaptors
 		  ///
 		  /// \brief Adaptor class for reversing the orientation of the arcs in
 		  /// a digraph.
 		  ///
 		  /// ReverseDigraph can be used for reversing the arcs in a digraph.
 		  /// It conforms to the \ref concepts::Digraph "Digraph" concept.
 		  ///
 		  /// The adapted digraph can also be modified through this adaptor
 		  /// by adding or removing nodes or arcs, unless the \c GR template
 		  /// parameter is set to be \c const.
 		  ///
 		  /// This class provides item counting in the same time as the adapted
 		  /// digraph structure.
 		  ///
 		  /// \tparam DGR The type of the adapted digraph.
 		  /// It must conform to the \ref concepts::Digraph "Digraph" concept.
 		  /// It can also be specified to be \c const.
 		  ///
 		  /// \note The \c Node and \c Arc types of this adaptor and the adapted
 		  /// digraph are convertible to each other.
 		  template<typename DGR>
 		#ifdef DOXYGEN
 		  class ReverseDigraph {
 		#else
 		  class ReverseDigraph :
 		    public DigraphAdaptorExtender<ReverseDigraphBase<DGR> > {
 		#endif
 		    typedef DigraphAdaptorExtender<ReverseDigraphBase<DGR> > Parent;
 		  public:
 		    /// The type of the adapted digraph.
 		    typedef DGR Digraph;
 		  protected:
 		    ReverseDigraph() { }
 		  public:
 		    /// \brief Constructor
 		    ///
 		    /// Creates a reverse digraph adaptor for the given digraph.
 		    explicit ReverseDigraph(DGR& digraph) {
 		      Parent::initialize(digraph);
+		    }
 		  };
 		  /// \brief Returns a read-only ReverseDigraph adaptor
 		  ///
 		  /// This function just returns a read-only \ref ReverseDigraph adaptor.
 		  /// \ingroup graph_adaptors
 		  /// \relates ReverseDigraph
 		  template<typename DGR>
 		  ReverseDigraph<const DGR> reverseDigraph(const DGR& digraph) {
 		    return ReverseDigraph<const DGR>(digraph);
+		  }
 		  template <typename DGR, typename NF, typename AF, bool ch = true>
 		  class SubDigraphBase : public DigraphAdaptorBase<DGR> {
 		    typedef DigraphAdaptorBase<DGR> Parent;
 		  public:
 		    typedef DGR Digraph;
 		    typedef NF NodeFilterMap;
 		    typedef AF ArcFilterMap;
 		    typedef SubDigraphBase Adaptor;
 		  protected:
 		    NF* _node_filter;
 		    AF* _arc_filter;
 		    SubDigraphBase()
 		      : Parent(), _node_filter(0), _arc_filter(0) { }
 		    void initialize(DGR& digraph, NF& node_filter, AF& arc_filter) {
 		      Parent::initialize(digraph);
 		      _node_filter = &node_filter;
 		      _arc_filter = &arc_filter;
+		    }
 		  public:
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    void first(Node& i) const {
 		      Parent::first(i);
 		      while (i != INVALID && !(*_node_filter)[i]) Parent::next(i);
+		    }
 		    void first(Arc& i) const {
 		      Parent::first(i);
 		      while (i != INVALID && (!(*_arc_filter)[i]
 		                              || !(*_node_filter)[Parent::source(i)]
 		                              || !(*_node_filter)[Parent::target(i)]))
 		        Parent::next(i);
+		    }
 		    void firstIn(Arc& i, const Node& n) const {
 		      Parent::firstIn(i, n);
 		      while (i != INVALID && (!(*_arc_filter)[i]
 		                              || !(*_node_filter)[Parent::source(i)]))
 		        Parent::nextIn(i);
+		    }
 		    void firstOut(Arc& i, const Node& n) const {
 		      Parent::firstOut(i, n);
 		      while (i != INVALID && (!(*_arc_filter)[i]
 		                              || !(*_node_filter)[Parent::target(i)]))
 		        Parent::nextOut(i);
+		    }
 		    void next(Node& i) const {
 		      Parent::next(i);
 		      while (i != INVALID && !(*_node_filter)[i]) Parent::next(i);
@@ -626,192 +629,194 @@
+		    }
 		    void status(const Node& n, bool v) const { _node_filter->set(n, v); }
 		    void status(const Arc& a, bool v) const { _arc_filter->set(a, v); }
 		    bool status(const Node& n) const { return (*_node_filter)[n]; }
 		    bool status(const Arc& a) const { return (*_arc_filter)[a]; }
 		    typedef False NodeNumTag;
 		    typedef False ArcNumTag;
 		    typedef FindArcTagIndicator<DGR> FindArcTag;
 		    Arc findArc(const Node& source, const Node& target,
 		                const Arc& prev = INVALID) const {
 		      if (!(*_node_filter)[source] || !(*_node_filter)[target]) {
 		        return INVALID;
+		      }
 		      Arc arc = Parent::findArc(source, target, prev);
 		      while (arc != INVALID && !(*_arc_filter)[arc]) {
 		        arc = Parent::findArc(source, target, arc);
+		      }
 		      return arc;
+		    }
 		    template <typename V>
 		    class NodeMap
 		      : public SubMapExtender<SubDigraphBase<DGR, NF, AF, false>,
 		          LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, NodeMap<V>)> {
 		      typedef SubMapExtender<SubDigraphBase<DGR, NF, AF, false>,
 		        LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, NodeMap<V>)> Parent;
 		    public:
 		      typedef V Value;
 		      NodeMap(const SubDigraphBase<DGR, NF, AF, false>& adaptor)
 		        : Parent(adaptor) {}
 		      NodeMap(const SubDigraphBase<DGR, NF, AF, false>& adaptor, const V& value)
 		        : Parent(adaptor, value) {}
 		    private:
 		      NodeMap& operator=(const NodeMap& cmap) {
 		        return operator=<NodeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename V>
 		    class ArcMap
 		      : public SubMapExtender<SubDigraphBase<DGR, NF, AF, false>,
 		          LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, ArcMap<V>)> {
 		      typedef SubMapExtender<SubDigraphBase<DGR, NF, AF, false>,
 		        LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, ArcMap<V>)> Parent;
 		    public:
 		      typedef V Value;
 		      ArcMap(const SubDigraphBase<DGR, NF, AF, false>& adaptor)
 		        : Parent(adaptor) {}
 		      ArcMap(const SubDigraphBase<DGR, NF, AF, false>& adaptor, const V& value)
 		        : Parent(adaptor, value) {}
 		    private:
 		      ArcMap& operator=(const ArcMap& cmap) {
 		        return operator=<ArcMap>(cmap);
+		      }
 		      template <typename CMap>
 		      ArcMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  };
 		  /// \ingroup graph_adaptors
 		  ///
 		  /// \brief Adaptor class for hiding nodes and arcs in a digraph
 		  ///
 		  /// SubDigraph can be used for hiding nodes and arcs in a digraph.
 		  /// A \c bool node map and a \c bool arc map must be specified, which
 		  /// define the filters for nodes and arcs.
 		  /// Only the nodes and arcs with \c true filter value are
 		  /// shown in the subdigraph. The arcs that are incident to hidden
 		  /// nodes are also filtered out.
 		  /// This adaptor conforms to the \ref concepts::Digraph "Digraph" concept.
 		  ///
 		  /// The adapted digraph can also be modified through this adaptor
 		  /// by adding or removing nodes or arcs, unless the \c GR template
 		  /// parameter is set to be \c const.
 		  ///
 		  /// This class provides only linear time counting for nodes and arcs.
 		  ///
 		  /// \tparam DGR The type of the adapted digraph.
 		  /// It must conform to the \ref concepts::Digraph "Digraph" concept.
 		  /// It can also be specified to be \c const.
 		  /// \tparam NF The type of the node filter map.
 		  /// It must be a \c bool (or convertible) node map of the
 		  /// adapted digraph. The default type is
 		  /// \ref concepts::Digraph::NodeMap "DGR::NodeMap<bool>".
 		  /// \tparam AF The type of the arc filter map.
 		  /// It must be \c bool (or convertible) arc map of the
 		  /// adapted digraph. The default type is
 		  /// \ref concepts::Digraph::ArcMap "DGR::ArcMap<bool>".
 		  ///
 		  /// \note The \c Node and \c Arc types of this adaptor and the adapted
 		  /// digraph are convertible to each other.
 		  ///
 		  /// \see FilterNodes
 		  /// \see FilterArcs
 		#ifdef DOXYGEN
 		  template<typename DGR, typename NF, typename AF>
 		  class SubDigraph {
 		#else
 		  template<typename DGR,
 		           typename NF = typename DGR::template NodeMap<bool>,
 		           typename AF = typename DGR::template ArcMap<bool> >
 		  class SubDigraph :
 		    public DigraphAdaptorExtender<SubDigraphBase<DGR, NF, AF, true> > {
 		#endif
 		  public:
 		    /// The type of the adapted digraph.
 		    typedef DGR Digraph;
 		    /// The type of the node filter map.
 		    typedef NF NodeFilterMap;
 		    /// The type of the arc filter map.
 		    typedef AF ArcFilterMap;
 		    typedef DigraphAdaptorExtender<SubDigraphBase<DGR, NF, AF, true> >
 		      Parent;
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		  protected:
 		    SubDigraph() { }
 		  public:
 		    /// \brief Constructor
 		    ///
 		    /// Creates a subdigraph for the given digraph with the
 		    /// given node and arc filter maps.
 		    SubDigraph(DGR& digraph, NF& node_filter, AF& arc_filter) {
 		      Parent::initialize(digraph, node_filter, arc_filter);
+		    }
 		    /// \brief Sets the status of the given node
 		    ///
 		    /// This function sets the status of the given node.
 		    /// It is done by simply setting the assigned value of \c n
 		    /// to \c v in the node filter map.
 		    void status(const Node& n, bool v) const { Parent::status(n, v); }
 		    /// \brief Sets the status of the given arc
 		    ///
 		    /// This function sets the status of the given arc.
 		    /// It is done by simply setting the assigned value of \c a
 		    /// to \c v in the arc filter map.
 		    void status(const Arc& a, bool v) const { Parent::status(a, v); }
 		    /// \brief Returns the status of the given node
 		    ///
 		    /// This function returns the status of the given node.
 		    /// It is \c true if the given node is enabled (i.e. not hidden).
 		    bool status(const Node& n) const { return Parent::status(n); }
 		    /// \brief Returns the status of the given arc
 		    ///
 		    /// This function returns the status of the given arc.
 		    /// It is \c true if the given arc is enabled (i.e. not hidden).
 		    bool status(const Arc& a) const { return Parent::status(a); }
 		    /// \brief Disables the given node
 		    ///
 		    /// This function disables the given node in the subdigraph,
 		    /// so the iteration jumps over it.
 		    /// It is the same as \ref status() "status(n, false)".
 		    void disable(const Node& n) const { Parent::status(n, false); }
 		    /// \brief Disables the given arc
 		    ///
 		    /// This function disables the given arc in the subdigraph,
 		    /// so the iteration jumps over it.
 		    /// It is the same as \ref status() "status(a, false)".
 		    void disable(const Arc& a) const { Parent::status(a, false); }
 		    /// \brief Enables the given node
 		    ///
 		    /// This function enables the given node in the subdigraph.
@@ -1221,607 +1226,615 @@
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, NodeMap<V>)> Parent;
 		    public:
 		      typedef V Value;
 		      NodeMap(const SubGraphBase<GR, NF, EF, false>& adaptor)
 		        : Parent(adaptor) {}
 		      NodeMap(const SubGraphBase<GR, NF, EF, false>& adaptor, const V& value)
 		        : Parent(adaptor, value) {}
 		    private:
 		      NodeMap& operator=(const NodeMap& cmap) {
 		        return operator=<NodeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename V>
 		    class ArcMap
 		      : public SubMapExtender<SubGraphBase<GR, NF, EF, false>,
 		          LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, ArcMap<V>)> {
 		      typedef SubMapExtender<SubGraphBase<GR, NF, EF, false>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, ArcMap<V>)> Parent;
 		    public:
 		      typedef V Value;
 		      ArcMap(const SubGraphBase<GR, NF, EF, false>& adaptor)
 		        : Parent(adaptor) {}
 		      ArcMap(const SubGraphBase<GR, NF, EF, false>& adaptor, const V& value)
 		        : Parent(adaptor, value) {}
 		    private:
 		      ArcMap& operator=(const ArcMap& cmap) {
 		        return operator=<ArcMap>(cmap);
+		      }
 		      template <typename CMap>
 		      ArcMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename V>
 		    class EdgeMap
 		      : public SubMapExtender<SubGraphBase<GR, NF, EF, false>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, EdgeMap<V>)> {
 		      typedef SubMapExtender<SubGraphBase<GR, NF, EF, false>,
 			LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, EdgeMap<V>)> Parent;
 		    public:
 		      typedef V Value;
 		      EdgeMap(const SubGraphBase<GR, NF, EF, false>& adaptor)
 		        : Parent(adaptor) {}
 		      EdgeMap(const SubGraphBase<GR, NF, EF, false>& adaptor, const V& value)
 		        : Parent(adaptor, value) {}
 		    private:
 		      EdgeMap& operator=(const EdgeMap& cmap) {
 		        return operator=<EdgeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      EdgeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  };
 		  /// \ingroup graph_adaptors
 		  ///
 		  /// \brief Adaptor class for hiding nodes and edges in an undirected
 		  /// graph.
 		  ///
 		  /// SubGraph can be used for hiding nodes and edges in a graph.
 		  /// A \c bool node map and a \c bool edge map must be specified, which
 		  /// define the filters for nodes and edges.
 		  /// Only the nodes and edges with \c true filter value are
 		  /// shown in the subgraph. The edges that are incident to hidden
 		  /// nodes are also filtered out.
 		  /// This adaptor conforms to the \ref concepts::Graph "Graph" concept.
 		  ///
 		  /// The adapted graph can also be modified through this adaptor
 		  /// by adding or removing nodes or edges, unless the \c GR template
 		  /// parameter is set to be \c const.
 		  ///
 		  /// This class provides only linear time counting for nodes, edges and arcs.
 		  ///
 		  /// \tparam GR The type of the adapted graph.
 		  /// It must conform to the \ref concepts::Graph "Graph" concept.
 		  /// It can also be specified to be \c const.
 		  /// \tparam NF The type of the node filter map.
 		  /// It must be a \c bool (or convertible) node map of the
 		  /// adapted graph. The default type is
 		  /// \ref concepts::Graph::NodeMap "GR::NodeMap<bool>".
 		  /// \tparam EF The type of the edge filter map.
 		  /// It must be a \c bool (or convertible) edge map of the
 		  /// adapted graph. The default type is
 		  /// \ref concepts::Graph::EdgeMap "GR::EdgeMap<bool>".
 		  ///
 		  /// \note The \c Node, \c Edge and \c Arc types of this adaptor and the
 		  /// adapted graph are convertible to each other.
 		  ///
 		  /// \see FilterNodes
 		  /// \see FilterEdges
 		#ifdef DOXYGEN
 		  template<typename GR, typename NF, typename EF>
 		  class SubGraph {
 		#else
 		  template<typename GR,
 		           typename NF = typename GR::template NodeMap<bool>,
 		           typename EF = typename GR::template EdgeMap<bool> >
 		  class SubGraph :
 		    public GraphAdaptorExtender<SubGraphBase<GR, NF, EF, true> > {
 		#endif
 		  public:
 		    /// The type of the adapted graph.
 		    typedef GR Graph;
 		    /// The type of the node filter map.
 		    typedef NF NodeFilterMap;
 		    /// The type of the edge filter map.
 		    typedef EF EdgeFilterMap;
 		    typedef GraphAdaptorExtender<SubGraphBase<GR, NF, EF, true> >
 		      Parent;
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Edge Edge;
 		  protected:
 		    SubGraph() { }
 		  public:
 		    /// \brief Constructor
 		    ///
 		    /// Creates a subgraph for the given graph with the given node
 		    /// and edge filter maps.
 		    SubGraph(GR& graph, NF& node_filter, EF& edge_filter) {
 		      initialize(graph, node_filter, edge_filter);
+		    }
 		    /// \brief Sets the status of the given node
 		    ///
 		    /// This function sets the status of the given node.
 		    /// It is done by simply setting the assigned value of \c n
 		    /// to \c v in the node filter map.
 		    void status(const Node& n, bool v) const { Parent::status(n, v); }
 		    /// \brief Sets the status of the given edge
 		    ///
 		    /// This function sets the status of the given edge.
 		    /// It is done by simply setting the assigned value of \c e
 		    /// to \c v in the edge filter map.
 		    void status(const Edge& e, bool v) const { Parent::status(e, v); }
 		    /// \brief Returns the status of the given node
 		    ///
 		    /// This function returns the status of the given node.
 		    /// It is \c true if the given node is enabled (i.e. not hidden).
 		    bool status(const Node& n) const { return Parent::status(n); }
 		    /// \brief Returns the status of the given edge
 		    ///
 		    /// This function returns the status of the given edge.
 		    /// It is \c true if the given edge is enabled (i.e. not hidden).
 		    bool status(const Edge& e) const { return Parent::status(e); }
 		    /// \brief Disables the given node
 		    ///
 		    /// This function disables the given node in the subdigraph,
 		    /// so the iteration jumps over it.
 		    /// It is the same as \ref status() "status(n, false)".
 		    void disable(const Node& n) const { Parent::status(n, false); }
 		    /// \brief Disables the given edge
 		    ///
 		    /// This function disables the given edge in the subgraph,
 		    /// so the iteration jumps over it.
 		    /// It is the same as \ref status() "status(e, false)".
 		    void disable(const Edge& e) const { Parent::status(e, false); }
 		    /// \brief Enables the given node
 		    ///
 		    /// This function enables the given node in the subdigraph.
 		    /// It is the same as \ref status() "status(n, true)".
 		    void enable(const Node& n) const { Parent::status(n, true); }
 		    /// \brief Enables the given edge
 		    ///
 		    /// This function enables the given edge in the subgraph.
 		    /// It is the same as \ref status() "status(e, true)".
 		    void enable(const Edge& e) const { Parent::status(e, true); }
 		  };
 		  /// \brief Returns a read-only SubGraph adaptor
 		  ///
 		  /// This function just returns a read-only \ref SubGraph adaptor.
 		  /// \ingroup graph_adaptors
 		  /// \relates SubGraph
 		  template<typename GR, typename NF, typename EF>
 		  SubGraph<const GR, NF, EF>
 		  subGraph(const GR& graph, NF& node_filter, EF& edge_filter) {
 		    return SubGraph<const GR, NF, EF>
 		      (graph, node_filter, edge_filter);
+		  }
 		  template<typename GR, typename NF, typename EF>
 		  SubGraph<const GR, const NF, EF>
 		  subGraph(const GR& graph, const NF& node_filter, EF& edge_filter) {
 		    return SubGraph<const GR, const NF, EF>
 		      (graph, node_filter, edge_filter);
+		  }
 		  template<typename GR, typename NF, typename EF>
 		  SubGraph<const GR, NF, const EF>
 		  subGraph(const GR& graph, NF& node_filter, const EF& edge_filter) {
 		    return SubGraph<const GR, NF, const EF>
 		      (graph, node_filter, edge_filter);
+		  }
 		  template<typename GR, typename NF, typename EF>
 		  SubGraph<const GR, const NF, const EF>
 		  subGraph(const GR& graph, const NF& node_filter, const EF& edge_filter) {
 		    return SubGraph<const GR, const NF, const EF>
 		      (graph, node_filter, edge_filter);
+		  }
 		  /// \ingroup graph_adaptors
 		  ///
 		  /// \brief Adaptor class for hiding nodes in a digraph or a graph.
 		  ///
 		  /// FilterNodes adaptor can be used for hiding nodes in a digraph or a
 		  /// graph. A \c bool node map must be specified, which defines the filter
 		  /// for the nodes. Only the nodes with \c true filter value and the
 		  /// arcs/edges incident to nodes both with \c true filter value are shown
 		  /// in the subgraph. This adaptor conforms to the \ref concepts::Digraph
 		  /// "Digraph" concept or the \ref concepts::Graph "Graph" concept
 		  /// depending on the \c GR template parameter.
 		  ///
 		  /// The adapted (di)graph can also be modified through this adaptor
 		  /// by adding or removing nodes or arcs/edges, unless the \c GR template
 		  /// parameter is set to be \c const.
 		  ///
 		  /// This class provides only linear time item counting.
 		  ///
 		  /// \tparam GR The type of the adapted digraph or graph.
 		  /// It must conform to the \ref concepts::Digraph "Digraph" concept
 		  /// or the \ref concepts::Graph "Graph" concept.
 		  /// It can also be specified to be \c const.
 		  /// \tparam NF The type of the node filter map.
 		  /// It must be a \c bool (or convertible) node map of the
 		  /// adapted (di)graph. The default type is
 		  /// \ref concepts::Graph::NodeMap "GR::NodeMap<bool>".
 		  ///
 		  /// \note The \c Node and <tt>Arc/Edge</tt> types of this adaptor and the
 		  /// adapted (di)graph are convertible to each other.
 		#ifdef DOXYGEN
 		  template<typename GR, typename NF>
 		  class FilterNodes {
 		#else
 		  template<typename GR,
 		           typename NF = typename GR::template NodeMap<bool>,
 		           typename Enable = void>
 		  class FilterNodes :
 		    public DigraphAdaptorExtender<
 		      SubDigraphBase<GR, NF, ConstMap<typename GR::Arc, Const<bool, true> >,
 		                     true> > {
 		#endif
 		    typedef DigraphAdaptorExtender<
 		      SubDigraphBase<GR, NF, ConstMap<typename GR::Arc, Const<bool, true> >,
 		                     true> > Parent;
 		  public:
 		    typedef GR Digraph;
 		    typedef NF NodeFilterMap;
 		    typedef typename Parent::Node Node;
 		  protected:
 		    ConstMap<typename Digraph::Arc, Const<bool, true> > const_true_map;
 		    FilterNodes() : const_true_map() {}
 		  public:
 		    /// \brief Constructor
 		    ///
 		    /// Creates a subgraph for the given digraph or graph with the
 		    /// given node filter map.
 		    FilterNodes(GR& graph, NF& node_filter)
 		      : Parent(), const_true_map()
+		    {
 		      Parent::initialize(graph, node_filter, const_true_map);
+		    }
 		    /// \brief Sets the status of the given node
 		    ///
 		    /// This function sets the status of the given node.
 		    /// It is done by simply setting the assigned value of \c n
 		    /// to \c v in the node filter map.
 		    void status(const Node& n, bool v) const { Parent::status(n, v); }
 		    /// \brief Returns the status of the given node
 		    ///
 		    /// This function returns the status of the given node.
 		    /// It is \c true if the given node is enabled (i.e. not hidden).
 		    bool status(const Node& n) const { return Parent::status(n); }
 		    /// \brief Disables the given node
 		    ///
 		    /// This function disables the given node, so the iteration
 		    /// jumps over it.
 		    /// It is the same as \ref status() "status(n, false)".
 		    void disable(const Node& n) const { Parent::status(n, false); }
 		    /// \brief Enables the given node
 		    ///
 		    /// This function enables the given node.
 		    /// It is the same as \ref status() "status(n, true)".
 		    void enable(const Node& n) const { Parent::status(n, true); }
 		  };
 		  template<typename GR, typename NF>
 		  class FilterNodes<GR, NF,
 		                    typename enable_if<UndirectedTagIndicator<GR> >::type> :
 		    public GraphAdaptorExtender<
 		      SubGraphBase<GR, NF, ConstMap<typename GR::Edge, Const<bool, true> >,
 		                   true> > {
 		    typedef GraphAdaptorExtender<
 		      SubGraphBase<GR, NF, ConstMap<typename GR::Edge, Const<bool, true> >,
 		                   true> > Parent;
 		  public:
 		    typedef GR Graph;
 		    typedef NF NodeFilterMap;
 		    typedef typename Parent::Node Node;
 		  protected:
 		    ConstMap<typename GR::Edge, Const<bool, true> > const_true_map;
 		    FilterNodes() : const_true_map() {}
 		  public:
 		    FilterNodes(GR& graph, NodeFilterMap& node_filter) :
 		      Parent(), const_true_map() {
 		      Parent::initialize(graph, node_filter, const_true_map);
+		    }
 		    void status(const Node& n, bool v) const { Parent::status(n, v); }
 		    bool status(const Node& n) const { return Parent::status(n); }
 		    void disable(const Node& n) const { Parent::status(n, false); }
 		    void enable(const Node& n) const { Parent::status(n, true); }
 		  };
 		  /// \brief Returns a read-only FilterNodes adaptor
 		  ///
 		  /// This function just returns a read-only \ref FilterNodes adaptor.
 		  /// \ingroup graph_adaptors
 		  /// \relates FilterNodes
 		  template<typename GR, typename NF>
 		  FilterNodes<const GR, NF>
 		  filterNodes(const GR& graph, NF& node_filter) {
 		    return FilterNodes<const GR, NF>(graph, node_filter);
+		  }
 		  template<typename GR, typename NF>
 		  FilterNodes<const GR, const NF>
 		  filterNodes(const GR& graph, const NF& node_filter) {
 		    return FilterNodes<const GR, const NF>(graph, node_filter);
+		  }
 		  /// \ingroup graph_adaptors
 		  ///
 		  /// \brief Adaptor class for hiding arcs in a digraph.
 		  ///
 		  /// FilterArcs adaptor can be used for hiding arcs in a digraph.
 		  /// A \c bool arc map must be specified, which defines the filter for
 		  /// the arcs. Only the arcs with \c true filter value are shown in the
 		  /// subdigraph. This adaptor conforms to the \ref concepts::Digraph
 		  /// "Digraph" concept.
 		  ///
 		  /// The adapted digraph can also be modified through this adaptor
 		  /// by adding or removing nodes or arcs, unless the \c GR template
 		  /// parameter is set to be \c const.
 		  ///
 		  /// This class provides only linear time counting for nodes and arcs.
 		  ///
 		  /// \tparam DGR The type of the adapted digraph.
 		  /// It must conform to the \ref concepts::Digraph "Digraph" concept.
 		  /// It can also be specified to be \c const.
 		  /// \tparam AF The type of the arc filter map.
 		  /// It must be a \c bool (or convertible) arc map of the
 		  /// adapted digraph. The default type is
 		  /// \ref concepts::Digraph::ArcMap "DGR::ArcMap<bool>".
 		  ///
 		  /// \note The \c Node and \c Arc types of this adaptor and the adapted
 		  /// digraph are convertible to each other.
 		#ifdef DOXYGEN
 		  template<typename DGR,
 		           typename AF>
 		  class FilterArcs {
 		#else
 		  template<typename DGR,
 		           typename AF = typename DGR::template ArcMap<bool> >
 		  class FilterArcs :
 		    public DigraphAdaptorExtender<
 		      SubDigraphBase<DGR, ConstMap<typename DGR::Node, Const<bool, true> >,
 		                     AF, false> > {
 		#endif
 		    typedef DigraphAdaptorExtender<
 		      SubDigraphBase<DGR, ConstMap<typename DGR::Node, Const<bool, true> >,
 		                     AF, false> > Parent;
 		  public:
 		    /// The type of the adapted digraph.
 		    typedef DGR Digraph;
 		    /// The type of the arc filter map.
 		    typedef AF ArcFilterMap;
 		    typedef typename Parent::Arc Arc;
 		  protected:
 		    ConstMap<typename DGR::Node, Const<bool, true> > const_true_map;
 		    FilterArcs() : const_true_map() {}
 		  public:
 		    /// \brief Constructor
 		    ///
 		    /// Creates a subdigraph for the given digraph with the given arc
 		    /// filter map.
 		    FilterArcs(DGR& digraph, ArcFilterMap& arc_filter)
 		      : Parent(), const_true_map() {
 		      Parent::initialize(digraph, const_true_map, arc_filter);
+		    }
 		    /// \brief Sets the status of the given arc
 		    ///
 		    /// This function sets the status of the given arc.
 		    /// It is done by simply setting the assigned value of \c a
 		    /// to \c v in the arc filter map.
 		    void status(const Arc& a, bool v) const { Parent::status(a, v); }
 		    /// \brief Returns the status of the given arc
 		    ///
 		    /// This function returns the status of the given arc.
 		    /// It is \c true if the given arc is enabled (i.e. not hidden).
 		    bool status(const Arc& a) const { return Parent::status(a); }
 		    /// \brief Disables the given arc
 		    ///
 		    /// This function disables the given arc in the subdigraph,
 		    /// so the iteration jumps over it.
 		    /// It is the same as \ref status() "status(a, false)".
 		    void disable(const Arc& a) const { Parent::status(a, false); }
 		    /// \brief Enables the given arc
 		    ///
 		    /// This function enables the given arc in the subdigraph.
 		    /// It is the same as \ref status() "status(a, true)".
 		    void enable(const Arc& a) const { Parent::status(a, true); }
 		  };
 		  /// \brief Returns a read-only FilterArcs adaptor
 		  ///
 		  /// This function just returns a read-only \ref FilterArcs adaptor.
 		  /// \ingroup graph_adaptors
 		  /// \relates FilterArcs
 		  template<typename DGR, typename AF>
 		  FilterArcs<const DGR, AF>
 		  filterArcs(const DGR& digraph, AF& arc_filter) {
 		    return FilterArcs<const DGR, AF>(digraph, arc_filter);
+		  }
 		  template<typename DGR, typename AF>
 		  FilterArcs<const DGR, const AF>
 		  filterArcs(const DGR& digraph, const AF& arc_filter) {
 		    return FilterArcs<const DGR, const AF>(digraph, arc_filter);
+		  }
 		  /// \ingroup graph_adaptors
 		  ///
 		  /// \brief Adaptor class for hiding edges in a graph.
 		  ///
 		  /// FilterEdges adaptor can be used for hiding edges in a graph.
 		  /// A \c bool edge map must be specified, which defines the filter for
 		  /// the edges. Only the edges with \c true filter value are shown in the
 		  /// subgraph. This adaptor conforms to the \ref concepts::Graph
 		  /// "Graph" concept.
 		  ///
 		  /// The adapted graph can also be modified through this adaptor
 		  /// by adding or removing nodes or edges, unless the \c GR template
 		  /// parameter is set to be \c const.
 		  ///
 		  /// This class provides only linear time counting for nodes, edges and arcs.
 		  ///
 		  /// \tparam GR The type of the adapted graph.
 		  /// It must conform to the \ref concepts::Graph "Graph" concept.
 		  /// It can also be specified to be \c const.
 		  /// \tparam EF The type of the edge filter map.
 		  /// It must be a \c bool (or convertible) edge map of the
 		  /// adapted graph. The default type is
 		  /// \ref concepts::Graph::EdgeMap "GR::EdgeMap<bool>".
 		  ///
 		  /// \note The \c Node, \c Edge and \c Arc types of this adaptor and the
 		  /// adapted graph are convertible to each other.
 		#ifdef DOXYGEN
 		  template<typename GR,
 		           typename EF>
 		  class FilterEdges {
 		#else
 		  template<typename GR,
 		           typename EF = typename GR::template EdgeMap<bool> >
 		  class FilterEdges :
 		    public GraphAdaptorExtender<
 		      SubGraphBase<GR, ConstMap<typename GR::Node, Const<bool, true> >,
 		                   EF, false> > {
 		#endif
 		    typedef GraphAdaptorExtender<
 		      SubGraphBase<GR, ConstMap<typename GR::Node, Const<bool, true > >,
 		                   EF, false> > Parent;
 		  public:
 		    /// The type of the adapted graph.
 		    typedef GR Graph;
 		    /// The type of the edge filter map.
 		    typedef EF EdgeFilterMap;
 		    typedef typename Parent::Edge Edge;
 		  protected:
 		    ConstMap<typename GR::Node, Const<bool, true> > const_true_map;
 		    FilterEdges() : const_true_map(true) {
 		      Parent::setNodeFilterMap(const_true_map);
+		    }
 		  public:
 		    /// \brief Constructor
 		    ///
 		    /// Creates a subgraph for the given graph with the given edge
 		    /// filter map.
 		    FilterEdges(GR& graph, EF& edge_filter)
 		      : Parent(), const_true_map() {
 		      Parent::initialize(graph, const_true_map, edge_filter);
+		    }
 		    /// \brief Sets the status of the given edge
 		    ///
 		    /// This function sets the status of the given edge.
 		    /// It is done by simply setting the assigned value of \c e
 		    /// to \c v in the edge filter map.
 		    void status(const Edge& e, bool v) const { Parent::status(e, v); }
 		    /// \brief Returns the status of the given edge
 		    ///
 		    /// This function returns the status of the given edge.
 		    /// It is \c true if the given edge is enabled (i.e. not hidden).
 		    bool status(const Edge& e) const { return Parent::status(e); }
 		    /// \brief Disables the given edge
 		    ///
 		    /// This function disables the given edge in the subgraph,
 		    /// so the iteration jumps over it.
 		    /// It is the same as \ref status() "status(e, false)".
 		    void disable(const Edge& e) const { Parent::status(e, false); }
 		    /// \brief Enables the given edge
 		    ///
 		    /// This function enables the given edge in the subgraph.
 		    /// It is the same as \ref status() "status(e, true)".
 		    void enable(const Edge& e) const { Parent::status(e, true); }
 		  };
 		  /// \brief Returns a read-only FilterEdges adaptor
 		  ///
 		  /// This function just returns a read-only \ref FilterEdges adaptor.
 		  /// \ingroup graph_adaptors
 		  /// \relates FilterEdges
 		  template<typename GR, typename EF>
 		  FilterEdges<const GR, EF>
 		  filterEdges(const GR& graph, EF& edge_filter) {
 		    return FilterEdges<const GR, EF>(graph, edge_filter);
+		  }
 		  template<typename GR, typename EF>
 		  FilterEdges<const GR, const EF>
 		  filterEdges(const GR& graph, const EF& edge_filter) {
 		    return FilterEdges<const GR, const EF>(graph, edge_filter);
@@ -2139,192 +2152,195 @@
+		      }
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename V>
 		    class ArcMap
 		      : public SubMapExtender<UndirectorBase<DGR>, ArcMapBase<V> > {
 		      typedef SubMapExtender<UndirectorBase<DGR>, ArcMapBase<V> > Parent;
 		    public:
 		      typedef V Value;
 		      explicit ArcMap(const UndirectorBase<DGR>& adaptor)
 		        : Parent(adaptor) {}
 		      ArcMap(const UndirectorBase<DGR>& adaptor, const V& value)
 		        : Parent(adaptor, value) {}
 		    private:
 		      ArcMap& operator=(const ArcMap& cmap) {
 		        return operator=<ArcMap>(cmap);
+		      }
 		      template <typename CMap>
 		      ArcMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename V>
 		    class EdgeMap : public Digraph::template ArcMap<V> {
 		      typedef typename Digraph::template ArcMap<V> Parent;
 		    public:
 		      typedef V Value;
 		      explicit EdgeMap(const UndirectorBase<DGR>& adaptor)
 		        : Parent(*adaptor._digraph) {}
 		      EdgeMap(const UndirectorBase<DGR>& adaptor, const V& value)
 		        : Parent(*adaptor._digraph, value) {}
 		    private:
 		      EdgeMap& operator=(const EdgeMap& cmap) {
 		        return operator=<EdgeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      EdgeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    typedef typename ItemSetTraits<DGR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const { return _digraph->notifier(Node()); }
 		    typedef typename ItemSetTraits<DGR, Edge>::ItemNotifier EdgeNotifier;
 		    EdgeNotifier& notifier(Edge) const { return _digraph->notifier(Edge()); }
 		    typedef EdgeNotifier ArcNotifier;
 		    ArcNotifier& notifier(Arc) const { return _digraph->notifier(Edge()); }
 		  protected:
 		    UndirectorBase() : _digraph(0) {}
 		    DGR* _digraph;
 		    void initialize(DGR& digraph) {
 		      _digraph = &digraph;
+		    }
 		  };
 		  /// \ingroup graph_adaptors
 		  ///
 		  /// \brief Adaptor class for viewing a digraph as an undirected graph.
 		  ///
 		  /// Undirector adaptor can be used for viewing a digraph as an undirected
 		  /// graph. All arcs of the underlying digraph are showed in the
 		  /// adaptor as an edge (and also as a pair of arcs, of course).
 		  /// This adaptor conforms to the \ref concepts::Graph "Graph" concept.
 		  ///
 		  /// The adapted digraph can also be modified through this adaptor
 		  /// by adding or removing nodes or edges, unless the \c GR template
 		  /// parameter is set to be \c const.
 		  ///
 		  /// This class provides item counting in the same time as the adapted
 		  /// digraph structure.
 		  ///
 		  /// \tparam DGR The type of the adapted digraph.
 		  /// It must conform to the \ref concepts::Digraph "Digraph" concept.
 		  /// It can also be specified to be \c const.
 		  ///
 		  /// \note The \c Node type of this adaptor and the adapted digraph are
 		  /// convertible to each other, moreover the \c Edge type of the adaptor
 		  /// and the \c Arc type of the adapted digraph are also convertible to
 		  /// each other.
 		  /// (Thus the \c Arc type of the adaptor is convertible to the \c Arc type
 		  /// of the adapted digraph.)
 		  template<typename DGR>
 		#ifdef DOXYGEN
 		  class Undirector {
 		#else
 		  class Undirector :
 		    public GraphAdaptorExtender<UndirectorBase<DGR> > {
 		#endif
 		    typedef GraphAdaptorExtender<UndirectorBase<DGR> > Parent;
 		  public:
 		    /// The type of the adapted digraph.
 		    typedef DGR Digraph;
 		  protected:
 		    Undirector() { }
 		  public:
 		    /// \brief Constructor
 		    ///
 		    /// Creates an undirected graph from the given digraph.
 		    Undirector(DGR& digraph) {
 		      initialize(digraph);
+		    }
 		    /// \brief Arc map combined from two original arc maps
 		    ///
 		    /// This map adaptor class adapts two arc maps of the underlying
 		    /// digraph to get an arc map of the undirected graph.
 		    /// Its value type is inherited from the first arc map type (\c FW).
 		    /// \tparam FW The type of the "foward" arc map.
 		    /// \tparam BK The type of the "backward" arc map.
 		    template <typename FW, typename BK>
 		    class CombinedArcMap {
 		    public:
 		      /// The key type of the map
 		      typedef typename Parent::Arc Key;
 		      /// The value type of the map
 		      typedef typename FW::Value Value;
 		      typedef typename MapTraits<FW>::ReferenceMapTag ReferenceMapTag;
 		      typedef typename MapTraits<FW>::ReturnValue ReturnValue;
 		      typedef typename MapTraits<FW>::ConstReturnValue ConstReturnValue;
 		      typedef typename MapTraits<FW>::ReturnValue Reference;
 		      typedef typename MapTraits<FW>::ConstReturnValue ConstReference;
 		      /// Constructor
 		      CombinedArcMap(FW& forward, BK& backward)
 		        : _forward(&forward), _backward(&backward) {}
 		      /// Sets the value associated with the given key.
 		      void set(const Key& e, const Value& a) {
 		        if (Parent::direction(e)) {
 		          _forward->set(e, a);
 		        } else {
 		          _backward->set(e, a);
+		        }
+		      }
 		      /// Returns the value associated with the given key.
 		      ConstReturnValue operator[](const Key& e) const {
 		        if (Parent::direction(e)) {
 		          return (*_forward)[e];
 		        } else {
 		          return (*_backward)[e];
+		        }
+		      }
 		      /// Returns a reference to the value associated with the given key.
 		      ReturnValue operator[](const Key& e) {
 		        if (Parent::direction(e)) {
 		          return (*_forward)[e];
 		        } else {
 		          return (*_backward)[e];
+		        }
+		      }
 		    protected:
 		      FW* _forward;
 		      BK* _backward;
 		    };
 		    /// \brief Returns a combined arc map
 		    ///
 		    /// This function just returns a combined arc map.
@@ -2442,335 +2458,340 @@
 		    void erase(const Arc& i) { _graph->erase(i); }
 		    void clear() { _graph->clear(); }
 		    int id(const Node& v) const { return _graph->id(v); }
 		    int id(const Arc& e) const { return _graph->id(e); }
 		    Node nodeFromId(int idx) const { return _graph->nodeFromId(idx); }
 		    Arc arcFromId(int idx) const { return _graph->edgeFromId(idx); }
 		    int maxNodeId() const { return _graph->maxNodeId(); }
 		    int maxArcId() const { return _graph->maxEdgeId(); }
 		    typedef typename ItemSetTraits<GR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const { return _graph->notifier(Node()); }
 		    typedef typename ItemSetTraits<GR, Arc>::ItemNotifier ArcNotifier;
 		    ArcNotifier& notifier(Arc) const { return _graph->notifier(Arc()); }
 		    template <typename V>
 		    class NodeMap : public GR::template NodeMap<V> {
 		      typedef typename GR::template NodeMap<V> Parent;
 		    public:
 		      explicit NodeMap(const OrienterBase<GR, DM>& adapter)
 		        : Parent(*adapter._graph) {}
 		      NodeMap(const OrienterBase<GR, DM>& adapter, const V& value)
 		        : Parent(*adapter._graph, value) {}
 		    private:
 		      NodeMap& operator=(const NodeMap& cmap) {
 		        return operator=<NodeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename V>
 		    class ArcMap : public GR::template EdgeMap<V> {
 		      typedef typename Graph::template EdgeMap<V> Parent;
 		    public:
 		      explicit ArcMap(const OrienterBase<GR, DM>& adapter)
 		        : Parent(*adapter._graph) { }
 		      ArcMap(const OrienterBase<GR, DM>& adapter, const V& value)
 		        : Parent(*adapter._graph, value) { }
 		    private:
 		      ArcMap& operator=(const ArcMap& cmap) {
 		        return operator=<ArcMap>(cmap);
+		      }
 		      template <typename CMap>
 		      ArcMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  protected:
 		    Graph* _graph;
 		    DM* _direction;
 		    void initialize(GR& graph, DM& direction) {
 		      _graph = &graph;
 		      _direction = &direction;
+		    }
 		  };
 		  /// \ingroup graph_adaptors
 		  ///
 		  /// \brief Adaptor class for orienting the edges of a graph to get a digraph
 		  ///
 		  /// Orienter adaptor can be used for orienting the edges of a graph to
 		  /// get a digraph. A \c bool edge map of the underlying graph must be
 		  /// specified, which define the direction of the arcs in the adaptor.
 		  /// The arcs can be easily reversed by the \c reverseArc() member function
 		  /// of the adaptor.
 		  /// This class conforms to the \ref concepts::Digraph "Digraph" concept.
 		  ///
 		  /// The adapted graph can also be modified through this adaptor
 		  /// by adding or removing nodes or arcs, unless the \c GR template
 		  /// parameter is set to be \c const.
 		  ///
 		  /// This class provides item counting in the same time as the adapted
 		  /// graph structure.
 		  ///
 		  /// \tparam GR The type of the adapted graph.
 		  /// It must conform to the \ref concepts::Graph "Graph" concept.
 		  /// It can also be specified to be \c const.
 		  /// \tparam DM The type of the direction map.
 		  /// It must be a \c bool (or convertible) edge map of the
 		  /// adapted graph. The default type is
 		  /// \ref concepts::Graph::EdgeMap "GR::EdgeMap<bool>".
 		  ///
 		  /// \note The \c Node type of this adaptor and the adapted graph are
 		  /// convertible to each other, moreover the \c Arc type of the adaptor
 		  /// and the \c Edge type of the adapted graph are also convertible to
 		  /// each other.
 		#ifdef DOXYGEN
 		  template<typename GR,
 		           typename DM>
 		  class Orienter {
 		#else
 		  template<typename GR,
 		           typename DM = typename GR::template EdgeMap<bool> >
 		  class Orienter :
 		    public DigraphAdaptorExtender<OrienterBase<GR, DM> > {
 		#endif
 		    typedef DigraphAdaptorExtender<OrienterBase<GR, DM> > Parent;
 		  public:
 		    /// The type of the adapted graph.
 		    typedef GR Graph;
 		    /// The type of the direction edge map.
 		    typedef DM DirectionMap;
 		    typedef typename Parent::Arc Arc;
 		  protected:
 		    Orienter() { }
 		  public:
 		    /// \brief Constructor
 		    ///
 		    /// Constructor of the adaptor.
 		    Orienter(GR& graph, DM& direction) {
 		      Parent::initialize(graph, direction);
+		    }
 		    /// \brief Reverses the given arc
 		    ///
 		    /// This function reverses the given arc.
 		    /// It is done by simply negate the assigned value of \c a
 		    /// in the direction map.
 		    void reverseArc(const Arc& a) {
 		      Parent::reverseArc(a);
+		    }
 		  };
 		  /// \brief Returns a read-only Orienter adaptor
 		  ///
 		  /// This function just returns a read-only \ref Orienter adaptor.
 		  /// \ingroup graph_adaptors
 		  /// \relates Orienter
 		  template<typename GR, typename DM>
 		  Orienter<const GR, DM>
 		  orienter(const GR& graph, DM& direction) {
 		    return Orienter<const GR, DM>(graph, direction);
+		  }
 		  template<typename GR, typename DM>
 		  Orienter<const GR, const DM>
 		  orienter(const GR& graph, const DM& direction) {
 		    return Orienter<const GR, const DM>(graph, direction);
+		  }
 		  namespace _adaptor_bits {
 		    template <typename DGR, typename CM, typename FM, typename TL>
 		    class ResForwardFilter {
 		    public:
 		      typedef typename DGR::Arc Key;
 		      typedef bool Value;
 		    private:
 		      const CM* _capacity;
 		      const FM* _flow;
 		      TL _tolerance;
 		    public:
 		      ResForwardFilter(const CM& capacity, const FM& flow,
 		                       const TL& tolerance = TL())
 		        : _capacity(&capacity), _flow(&flow), _tolerance(tolerance) { }
 		      bool operator[](const typename DGR::Arc& a) const {
 		        return _tolerance.positive((*_capacity)[a] - (*_flow)[a]);
+		      }
 		    };
 		    template<typename DGR,typename CM, typename FM, typename TL>
 		    class ResBackwardFilter {
 		    public:
 		      typedef typename DGR::Arc Key;
 		      typedef bool Value;
 		    private:
 		      const CM* _capacity;
 		      const FM* _flow;
 		      TL _tolerance;
 		    public:
 		      ResBackwardFilter(const CM& capacity, const FM& flow,
 		                        const TL& tolerance = TL())
 		        : _capacity(&capacity), _flow(&flow), _tolerance(tolerance) { }
 		      bool operator[](const typename DGR::Arc& a) const {
 		        return _tolerance.positive((*_flow)[a]);
+		      }
 		    };
+		  }
 		  /// \ingroup graph_adaptors
 		  ///
 		  /// \brief Adaptor class for composing the residual digraph for directed
 		  /// flow and circulation problems.
 		  ///
 		  /// ResidualDigraph can be used for composing the \e residual digraph
 		  /// for directed flow and circulation problems. Let \f$ G=(V, A) \f$
 		  /// be a directed graph and let \f$ F \f$ be a number type.
 		  /// Let \f$ flow, cap: A\to F \f$ be functions on the arcs.
 		  /// This adaptor implements a digraph structure with node set \f$ V \f$
 		  /// and arc set \f$ A_{forward}\cup A_{backward} \f$,
 		  /// where \f$ A_{forward}=\{uv : uv\in A, flow(uv)<cap(uv)\} \f$ and
 		  /// \f$ A_{backward}=\{vu : uv\in A, flow(uv)>0\} \f$, i.e. the so
 		  /// called residual digraph.
 		  /// When the union \f$ A_{forward}\cup A_{backward} \f$ is taken,
 		  /// multiplicities are counted, i.e. the adaptor has exactly
 		  /// \f$ |A_{forward}| + |A_{backward}|\f$ arcs (it may have parallel
 		  /// arcs).
 		  /// This class conforms to the \ref concepts::Digraph "Digraph" concept.
 		  ///
 		  /// This class provides only linear time counting for nodes and arcs.
 		  ///
 		  /// \tparam DGR The type of the adapted digraph.
 		  /// It must conform to the \ref concepts::Digraph "Digraph" concept.
 		  /// It is implicitly \c const.
 		  /// \tparam CM The type of the capacity map.
 		  /// It must be an arc map of some numerical type, which defines
 		  /// the capacities in the flow problem. It is implicitly \c const.
 		  /// The default type is
 		  /// \ref concepts::Digraph::ArcMap "GR::ArcMap<int>".
 		  /// \tparam FM The type of the flow map.
 		  /// It must be an arc map of some numerical type, which defines
 		  /// the flow values in the flow problem. The default type is \c CM.
 		  /// \tparam TL The tolerance type for handling inexact computation.
 		  /// The default tolerance type depends on the value type of the
 		  /// capacity map.
 		  ///
 		  /// \note This adaptor is implemented using Undirector and FilterArcs
 		  /// adaptors.
 		  ///
 		  /// \note The \c Node type of this adaptor and the adapted digraph are
 		  /// convertible to each other, moreover the \c Arc type of the adaptor
 		  /// is convertible to the \c Arc type of the adapted digraph.
 		#ifdef DOXYGEN
 		  template<typename DGR, typename CM, typename FM, typename TL>
 		  class ResidualDigraph
 		#else
 		  template<typename DGR,
 		           typename CM = typename DGR::template ArcMap<int>,
 		           typename FM = CM,
 		           typename TL = Tolerance<typename CM::Value> >
 		  class ResidualDigraph
 		    : public SubDigraph<
 		        Undirector<const DGR>,
 		        ConstMap<typename DGR::Node, Const<bool, true> >,
 		        typename Undirector<const DGR>::template CombinedArcMap<
 		          _adaptor_bits::ResForwardFilter<const DGR, CM, FM, TL>,
 		          _adaptor_bits::ResBackwardFilter<const DGR, CM, FM, TL> > >
 		#endif
+		  {
 		  public:
 		    /// The type of the underlying digraph.
 		    typedef DGR Digraph;
 		    /// The type of the capacity map.
 		    typedef CM CapacityMap;
 		    /// The type of the flow map.
 		    typedef FM FlowMap;
 		    /// The tolerance type.
 		    typedef TL Tolerance;
 		    typedef typename CapacityMap::Value Value;
 		    typedef ResidualDigraph Adaptor;
 		  protected:
 		    typedef Undirector<const Digraph> Undirected;
 		    typedef ConstMap<typename DGR::Node, Const<bool, true> > NodeFilter;
 		    typedef _adaptor_bits::ResForwardFilter<const DGR, CM,
 		                                            FM, TL> ForwardFilter;
 		    typedef _adaptor_bits::ResBackwardFilter<const DGR, CM,
 		                                             FM, TL> BackwardFilter;
 		    typedef typename Undirected::
 		      template CombinedArcMap<ForwardFilter, BackwardFilter> ArcFilter;
 		    typedef SubDigraph<Undirected, NodeFilter, ArcFilter> Parent;
 		    const CapacityMap* _capacity;
 		    FlowMap* _flow;
 		    Undirected _graph;
 		    NodeFilter _node_filter;
 		    ForwardFilter _forward_filter;
 		    BackwardFilter _backward_filter;
 		    ArcFilter _arc_filter;
 		  public:
 		    /// \brief Constructor
 		    ///
 		    /// Constructor of the residual digraph adaptor. The parameters are the
 		    /// digraph, the capacity map, the flow map, and a tolerance object.
 		    ResidualDigraph(const DGR& digraph, const CM& capacity,
 		                    FM& flow, const TL& tolerance = Tolerance())
 		      : Parent(), _capacity(&capacity), _flow(&flow),
 		        _graph(digraph), _node_filter(),
 		        _forward_filter(capacity, flow, tolerance),
 		        _backward_filter(capacity, flow, tolerance),
 		        _arc_filter(_forward_filter, _backward_filter)
+		    {
 		      Parent::initialize(_graph, _node_filter, _arc_filter);
+		    }
 		    typedef typename Parent::Arc Arc;
@@ -3232,192 +3253,195 @@
 		          return _node_map[static_cast<const DigraphNode&>(key)];
+		        }
+		      }
 		    private:
 		      ArcImpl _arc_map;
 		      NodeImpl _node_map;
 		    };
 		  public:
 		    template <typename V>
 		    class NodeMap
 		      : public SubMapExtender<SplitNodesBase<DGR>, NodeMapBase<V> > {
 		      typedef SubMapExtender<SplitNodesBase<DGR>, NodeMapBase<V> > Parent;
 		    public:
 		      typedef V Value;
 		      NodeMap(const SplitNodesBase<DGR>& adaptor)
 		        : Parent(adaptor) {}
 		      NodeMap(const SplitNodesBase<DGR>& adaptor, const V& value)
 		        : Parent(adaptor, value) {}
 		    private:
 		      NodeMap& operator=(const NodeMap& cmap) {
 		        return operator=<NodeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename V>
 		    class ArcMap
 		      : public SubMapExtender<SplitNodesBase<DGR>, ArcMapBase<V> > {
 		      typedef SubMapExtender<SplitNodesBase<DGR>, ArcMapBase<V> > Parent;
 		    public:
 		      typedef V Value;
 		      ArcMap(const SplitNodesBase<DGR>& adaptor)
 		        : Parent(adaptor) {}
 		      ArcMap(const SplitNodesBase<DGR>& adaptor, const V& value)
 		        : Parent(adaptor, value) {}
 		    private:
 		      ArcMap& operator=(const ArcMap& cmap) {
 		        return operator=<ArcMap>(cmap);
+		      }
 		      template <typename CMap>
 		      ArcMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  protected:
 		    SplitNodesBase() : _digraph(0) {}
 		    DGR* _digraph;
 		    void initialize(Digraph& digraph) {
 		      _digraph = &digraph;
+		    }
 		  };
 		  /// \ingroup graph_adaptors
 		  ///
 		  /// \brief Adaptor class for splitting the nodes of a digraph.
 		  ///
 		  /// SplitNodes adaptor can be used for splitting each node into an
 		  /// \e in-node and an \e out-node in a digraph. Formaly, the adaptor
 		  /// replaces each node \f$ u \f$ in the digraph with two nodes,
 		  /// namely node \f$ u_{in} \f$ and node \f$ u_{out} \f$.
 		  /// If there is a \f$ (v, u) \f$ arc in the original digraph, then the
 		  /// new target of the arc will be \f$ u_{in} \f$ and similarly the
 		  /// source of each original \f$ (u, v) \f$ arc will be \f$ u_{out} \f$.
 		  /// The adaptor adds an additional \e bind \e arc from \f$ u_{in} \f$
 		  /// to \f$ u_{out} \f$ for each node \f$ u \f$ of the original digraph.
 		  ///
 		  /// The aim of this class is running an algorithm with respect to node
 		  /// costs or capacities if the algorithm considers only arc costs or
 		  /// capacities directly.
 		  /// In this case you can use \c SplitNodes adaptor, and set the node
 		  /// costs/capacities of the original digraph to the \e bind \e arcs
 		  /// in the adaptor.
 		  ///
 		  /// This class provides item counting in the same time as the adapted
 		  /// digraph structure.
 		  ///
 		  /// \tparam DGR The type of the adapted digraph.
 		  /// It must conform to the \ref concepts::Digraph "Digraph" concept.
 		  /// It is implicitly \c const.
 		  ///
 		  /// \note The \c Node type of this adaptor is converible to the \c Node
 		  /// type of the adapted digraph.
 		  template <typename DGR>
 		#ifdef DOXYGEN
 		  class SplitNodes {
 		#else
 		  class SplitNodes
 		    : public DigraphAdaptorExtender<SplitNodesBase<const DGR> > {
 		#endif
 		    typedef DigraphAdaptorExtender<SplitNodesBase<const DGR> > Parent;
 		  public:
 		    typedef DGR Digraph;
 		    typedef typename DGR::Node DigraphNode;
 		    typedef typename DGR::Arc DigraphArc;
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    /// \brief Constructor
 		    ///
 		    /// Constructor of the adaptor.
 		    SplitNodes(const DGR& g) {
 		      Parent::initialize(g);
+		    }
 		    /// \brief Returns \c true if the given node is an in-node.
 		    ///
 		    /// Returns \c true if the given node is an in-node.
 		    static bool inNode(const Node& n) {
 		      return Parent::inNode(n);
+		    }
 		    /// \brief Returns \c true if the given node is an out-node.
 		    ///
 		    /// Returns \c true if the given node is an out-node.
 		    static bool outNode(const Node& n) {
 		      return Parent::outNode(n);
+		    }
 		    /// \brief Returns \c true if the given arc is an original arc.
 		    ///
 		    /// Returns \c true if the given arc is one of the arcs in the
 		    /// original digraph.
 		    static bool origArc(const Arc& a) {
 		      return Parent::origArc(a);
+		    }
 		    /// \brief Returns \c true if the given arc is a bind arc.
 		    ///
 		    /// Returns \c true if the given arc is a bind arc, i.e. it connects
 		    /// an in-node and an out-node.
 		    static bool bindArc(const Arc& a) {
 		      return Parent::bindArc(a);
+		    }
 		    /// \brief Returns the in-node created from the given original node.
 		    ///
 		    /// Returns the in-node created from the given original node.
 		    static Node inNode(const DigraphNode& n) {
 		      return Parent::inNode(n);
+		    }
 		    /// \brief Returns the out-node created from the given original node.
 		    ///
 		    /// Returns the out-node created from the given original node.
 		    static Node outNode(const DigraphNode& n) {
 		      return Parent::outNode(n);
+		    }
 		    /// \brief Returns the bind arc that corresponds to the given
 		    /// original node.
 		    ///
 		    /// Returns the bind arc in the adaptor that corresponds to the given
 		    /// original node, i.e. the arc connecting the in-node and out-node
 		    /// of \c n.
 		    static Arc arc(const DigraphNode& n) {
 		      return Parent::arc(n);
+		    }
 		    /// \brief Returns the arc that corresponds to the given original arc.
 		    ///
 		    /// Returns the arc in the adaptor that corresponds to the given
 		    /// original arc.
 		    static Arc arc(const DigraphArc& a) {
 		      return Parent::arc(a);
+		    }
 		    /// \brief Node map combined from two original node maps
 		    ///
 		    /// This map adaptor class adapts two node maps of the original digraph

lemon/bfs.h

Show inline comments

@@ -608,198 +608,194 @@
 		    ///\pre init() must be called and at least one root node should be
 		    ///added with addSource() before using this function.
 		    ///
 		    ///\note <tt>b.start(t)</tt> is just a shortcut of the following code.
 		    ///\code
 		    ///  bool reach = false;
 		    ///  while ( !b.emptyQueue() && !reach ) {
 		    ///    b.processNextNode(t, reach);
 		    ///  }
 		    ///\endcode
 		    void start(Node t)
+		    {
 		      bool reach = false;
 		      while ( !emptyQueue() && !reach ) processNextNode(t, reach);
+		    }
 		    ///Executes the algorithm until a condition is met.
 		    ///Executes the algorithm until a condition is met.
 		    ///
 		    ///This method runs the %BFS algorithm from the root node(s) in
 		    ///order to compute the shortest path to a node \c v with
 		    /// <tt>nm[v]</tt> true, if such a node can be found.
 		    ///
 		    ///\param nm A \c bool (or convertible) node map. The algorithm
 		    ///will stop when it reaches a node \c v with <tt>nm[v]</tt> true.
 		    ///
 		    ///\return The reached node \c v with <tt>nm[v]</tt> true or
 		    ///\c INVALID if no such node was found.
 		    ///
 		    ///\pre init() must be called and at least one root node should be
 		    ///added with addSource() before using this function.
 		    ///
 		    ///\note <tt>b.start(nm)</tt> is just a shortcut of the following code.
 		    ///\code
 		    ///  Node rnode = INVALID;
 		    ///  while ( !b.emptyQueue() && rnode == INVALID ) {
 		    ///    b.processNextNode(nm, rnode);
 		    ///  }
 		    ///  return rnode;
 		    ///\endcode
 		    template<class NodeBoolMap>
 		    Node start(const NodeBoolMap &nm)
+		    {
 		      Node rnode = INVALID;
 		      while ( !emptyQueue() && rnode == INVALID ) {
 		        processNextNode(nm, rnode);
+		      }
 		      return rnode;
+		    }
 		    ///Runs the algorithm from the given source node.
 		    ///This method runs the %BFS algorithm from node \c s
 		    ///in order to compute the shortest path to each node.
 		    ///
 		    ///The algorithm computes
 		    ///- the shortest path tree,
 		    ///- the distance of each node from the root.
 		    ///
 		    ///\note <tt>b.run(s)</tt> is just a shortcut of the following code.
 		    ///\code
 		    ///  b.init();
 		    ///  b.addSource(s);
 		    ///  b.start();
 		    ///\endcode
 		    void run(Node s) {
 		      init();
 		      addSource(s);
 		      start();
+		    }
 		    ///Finds the shortest path between \c s and \c t.
 		    ///This method runs the %BFS algorithm from node \c s
 		    ///in order to compute the shortest path to node \c t
 		    ///(it stops searching when \c t is processed).
 		    ///
 		    ///\return \c true if \c t is reachable form \c s.
 		    ///
 		    ///\note Apart from the return value, <tt>b.run(s,t)</tt> is just a
 		    ///shortcut of the following code.
 		    ///\code
 		    ///  b.init();
 		    ///  b.addSource(s);
 		    ///  b.start(t);
 		    ///\endcode
 		    bool run(Node s,Node t) {
 		      init();
 		      addSource(s);
 		      start(t);
 		      return reached(t);
+		    }
 		    ///Runs the algorithm to visit all nodes in the digraph.
 		    ///This method runs the %BFS algorithm in order to
 		    ///compute the shortest path to each node.
 		    ///
 		    ///The algorithm computes
 		    ///- the shortest path tree (forest),
 		    ///- the distance of each node from the root(s).
 		    ///This method runs the %BFS algorithm in order to visit all nodes
 		    ///in the digraph.
 		    ///
 		    ///\note <tt>b.run(s)</tt> is just a shortcut of the following code.
 		    ///\code
 		    ///  b.init();
 		    ///  for (NodeIt n(gr); n != INVALID; ++n) {
 		    ///    if (!b.reached(n)) {
 		    ///      b.addSource(n);
 		    ///      b.start();
 		    ///    }
 		    ///  }
 		    ///\endcode
 		    void run() {
 		      init();
 		      for (NodeIt n(*G); n != INVALID; ++n) {
 		        if (!reached(n)) {
 		          addSource(n);
 		          start();
+		        }
+		      }
+		    }
 		    ///@}
 		    ///\name Query Functions
 		    ///The results of the BFS algorithm can be obtained using these
 		    ///functions.\n
 		    ///Either \ref run(Node) "run()" or \ref start() should be called
 		    ///before using them.
 		    ///@{
 		    ///The shortest path to the given node.
 		    ///Returns the shortest path to the given node from the root(s).
 		    ///
 		    ///\warning \c t should be reached from the root(s).
 		    ///
 		    ///\pre Either \ref run(Node) "run()" or \ref init()
 		    ///must be called before using this function.
 		    Path path(Node t) const { return Path(*G, *_pred, t); }
 		    ///The distance of the given node from the root(s).
 		    ///Returns the distance of the given node from the root(s).
 		    ///
 		    ///\warning If node \c v is not reached from the root(s), then
 		    ///the return value of this function is undefined.
 		    ///
 		    ///\pre Either \ref run(Node) "run()" or \ref init()
 		    ///must be called before using this function.
 		    int dist(Node v) const { return (*_dist)[v]; }
 		    ///\brief Returns the 'previous arc' of the shortest path tree for
 		    ///the given node.
 		    ///
 		    ///This function returns the 'previous arc' of the shortest path
 		    ///tree for the node \c v, i.e. it returns the last arc of a
 		    ///shortest path from a root to \c v. It is \c INVALID if \c v
 		    ///is not reached from the root(s) or if \c v is a root.
 		    ///
 		    ///The shortest path tree used here is equal to the shortest path
 		    ///tree used in \ref predNode() and \ref predMap().
 		    ///
 		    ///\pre Either \ref run(Node) "run()" or \ref init()
 		    ///must be called before using this function.
 		    Arc predArc(Node v) const { return (*_pred)[v];}
 		    ///\brief Returns the 'previous node' of the shortest path tree for
 		    ///the given node.
 		    ///
 		    ///This function returns the 'previous node' of the shortest path
 		    ///tree for the node \c v, i.e. it returns the last but one node
 		    ///of a shortest path from a root to \c v. It is \c INVALID
 		    ///if \c v is not reached from the root(s) or if \c v is a root.
 		    ///
 		    ///The shortest path tree used here is equal to the shortest path
 		    ///tree used in \ref predArc() and \ref predMap().
 		    ///
 		    ///\pre Either \ref run(Node) "run()" or \ref init()
 		    ///must be called before using this function.
 		    Node predNode(Node v) const { return (*_pred)[v]==INVALID ? INVALID:
 		                                  G->source((*_pred)[v]); }
 		    ///\brief Returns a const reference to the node map that stores the
 		    /// distances of the nodes.
 		    ///
 		    ///Returns a const reference to the node map that stores the distances
 		    ///of the nodes calculated by the algorithm.
 		    ///
 		    ///\pre Either \ref run(Node) "run()" or \ref init()
 		    ///must be called before using this function.
 		    const DistMap &distMap() const { return *_dist;}
 		    ///\brief Returns a const reference to the node map that stores the
 		    ///predecessor arcs.
 		    ///
@@ -953,194 +949,194 @@
 		  };
 		  /// Auxiliary class for the function-type interface of BFS algorithm.
 		  /// This auxiliary class is created to implement the
 		  /// \ref bfs() "function-type interface" of \ref Bfs algorithm.
 		  /// It does not have own \ref run(Node) "run()" method, it uses the
 		  /// functions and features of the plain \ref Bfs.
 		  ///
 		  /// This class should only be used through the \ref bfs() function,
 		  /// which makes it easier to use the algorithm.
 		  template<class TR>
 		  class BfsWizard : public TR
+		  {
 		    typedef TR Base;
 		    typedef typename TR::Digraph Digraph;
 		    typedef typename Digraph::Node Node;
 		    typedef typename Digraph::NodeIt NodeIt;
 		    typedef typename Digraph::Arc Arc;
 		    typedef typename Digraph::OutArcIt OutArcIt;
 		    typedef typename TR::PredMap PredMap;
 		    typedef typename TR::DistMap DistMap;
 		    typedef typename TR::ReachedMap ReachedMap;
 		    typedef typename TR::ProcessedMap ProcessedMap;
 		    typedef typename TR::Path Path;
 		  public:
 		    /// Constructor.
 		    BfsWizard() : TR() {}
 		    /// Constructor that requires parameters.
 		    /// Constructor that requires parameters.
 		    /// These parameters will be the default values for the traits class.
 		    /// \param g The digraph the algorithm runs on.
 		    BfsWizard(const Digraph &g) :
 		      TR(g) {}
 		    ///Copy constructor
 		    BfsWizard(const TR &b) : TR(b) {}
 		    ~BfsWizard() {}
 		    ///Runs BFS algorithm from the given source node.
 		    ///This method runs BFS algorithm from node \c s
 		    ///in order to compute the shortest path to each node.
 		    void run(Node s)
+		    {
 		      Bfs<Digraph,TR> alg(*reinterpret_cast<const Digraph*>(Base::_g));
 		      if (Base::_pred)
 		        alg.predMap(*reinterpret_cast<PredMap*>(Base::_pred));
 		      if (Base::_dist)
 		        alg.distMap(*reinterpret_cast<DistMap*>(Base::_dist));
 		      if (Base::_reached)
 		        alg.reachedMap(*reinterpret_cast<ReachedMap*>(Base::_reached));
 		      if (Base::_processed)
 		        alg.processedMap(*reinterpret_cast<ProcessedMap*>(Base::_processed));
 		      if (s!=INVALID)
 		        alg.run(s);
 		      else
 		        alg.run();
+		    }
 		    ///Finds the shortest path between \c s and \c t.
 		    ///This method runs BFS algorithm from node \c s
 		    ///in order to compute the shortest path to node \c t
 		    ///(it stops searching when \c t is processed).
 		    ///
 		    ///\return \c true if \c t is reachable form \c s.
 		    bool run(Node s, Node t)
+		    {
 		      Bfs<Digraph,TR> alg(*reinterpret_cast<const Digraph*>(Base::_g));
 		      if (Base::_pred)
 		        alg.predMap(*reinterpret_cast<PredMap*>(Base::_pred));
 		      if (Base::_dist)
 		        alg.distMap(*reinterpret_cast<DistMap*>(Base::_dist));
 		      if (Base::_reached)
 		        alg.reachedMap(*reinterpret_cast<ReachedMap*>(Base::_reached));
 		      if (Base::_processed)
 		        alg.processedMap(*reinterpret_cast<ProcessedMap*>(Base::_processed));
 		      alg.run(s,t);
 		      if (Base::_path)
 		        *reinterpret_cast<Path*>(Base::_path) = alg.path(t);
 		      if (Base::_di)
 		        *Base::_di = alg.dist(t);
 		      return alg.reached(t);
+		    }
 		    ///Runs BFS algorithm to visit all nodes in the digraph.
 		    ///This method runs BFS algorithm in order to compute
 		    ///the shortest path to each node.
 		    ///This method runs BFS algorithm in order to visit all nodes
 		    ///in the digraph.
 		    void run()
+		    {
 		      run(INVALID);
+		    }
 		    template<class T>
 		    struct SetPredMapBase : public Base {
 		      typedef T PredMap;
 		      static PredMap *createPredMap(const Digraph &) { return 0; };
 		      SetPredMapBase(const TR &b) : TR(b) {}
 		    };
 		    ///\brief \ref named-templ-param "Named parameter" for setting
 		    ///the predecessor map.
 		    ///
 		    ///\ref named-templ-param "Named parameter" function for setting
 		    ///the map that stores the predecessor arcs of the nodes.
 		    template<class T>
 		    BfsWizard<SetPredMapBase<T> > predMap(const T &t)
+		    {
 		      Base::_pred=reinterpret_cast<void*>(const_cast<T*>(&t));
 		      return BfsWizard<SetPredMapBase<T> >(*this);
+		    }
 		    template<class T>
 		    struct SetReachedMapBase : public Base {
 		      typedef T ReachedMap;
 		      static ReachedMap *createReachedMap(const Digraph &) { return 0; };
 		      SetReachedMapBase(const TR &b) : TR(b) {}
 		    };
 		    ///\brief \ref named-templ-param "Named parameter" for setting
 		    ///the reached map.
 		    ///
 		    ///\ref named-templ-param "Named parameter" function for setting
 		    ///the map that indicates which nodes are reached.
 		    template<class T>
 		    BfsWizard<SetReachedMapBase<T> > reachedMap(const T &t)
+		    {
 		      Base::_reached=reinterpret_cast<void*>(const_cast<T*>(&t));
 		      return BfsWizard<SetReachedMapBase<T> >(*this);
+		    }
 		    template<class T>
 		    struct SetDistMapBase : public Base {
 		      typedef T DistMap;
 		      static DistMap *createDistMap(const Digraph &) { return 0; };
 		      SetDistMapBase(const TR &b) : TR(b) {}
 		    };
 		    ///\brief \ref named-templ-param "Named parameter" for setting
 		    ///the distance map.
 		    ///
 		    ///\ref named-templ-param "Named parameter" function for setting
 		    ///the map that stores the distances of the nodes calculated
 		    ///by the algorithm.
 		    template<class T>
 		    BfsWizard<SetDistMapBase<T> > distMap(const T &t)
+		    {
 		      Base::_dist=reinterpret_cast<void*>(const_cast<T*>(&t));
 		      return BfsWizard<SetDistMapBase<T> >(*this);
+		    }
 		    template<class T>
 		    struct SetProcessedMapBase : public Base {
 		      typedef T ProcessedMap;
 		      static ProcessedMap *createProcessedMap(const Digraph &) { return 0; };
 		      SetProcessedMapBase(const TR &b) : TR(b) {}
 		    };
 		    ///\brief \ref named-func-param "Named parameter" for setting
 		    ///the processed map.
 		    ///
 		    ///\ref named-templ-param "Named parameter" function for setting
 		    ///the map that indicates which nodes are processed.
 		    template<class T>
 		    BfsWizard<SetProcessedMapBase<T> > processedMap(const T &t)
+		    {
 		      Base::_processed=reinterpret_cast<void*>(const_cast<T*>(&t));
 		      return BfsWizard<SetProcessedMapBase<T> >(*this);
+		    }
 		    template<class T>
 		    struct SetPathBase : public Base {
 		      typedef T Path;
 		      SetPathBase(const TR &b) : TR(b) {}
 		    };
 		    ///\brief \ref named-func-param "Named parameter"
 		    ///for getting the shortest path to the target node.
 		    ///
 		    ///\ref named-func-param "Named parameter"
 		    ///for getting the shortest path to the target node.
 		    template<class T>
 		    BfsWizard<SetPathBase<T> > path(const T &t)
+		    {
 		      Base::_path=reinterpret_cast<void*>(const_cast<T*>(&t));
@@ -1602,148 +1598,144 @@
 		    ///
 		    /// \pre init() must be called and at least one root node should be
 		    /// added with addSource() before using this function.
 		    ///
 		    /// \note <tt>b.start(t)</tt> is just a shortcut of the following code.
 		    /// \code
 		    ///   bool reach = false;
 		    ///   while ( !b.emptyQueue() && !reach ) {
 		    ///     b.processNextNode(t, reach);
 		    ///   }
 		    /// \endcode
 		    void start(Node t) {
 		      bool reach = false;
 		      while ( !emptyQueue() && !reach ) processNextNode(t, reach);
+		    }
 		    /// \brief Executes the algorithm until a condition is met.
 		    ///
 		    /// Executes the algorithm until a condition is met.
 		    ///
 		    /// This method runs the %BFS algorithm from the root node(s) in
 		    /// order to compute the shortest path to a node \c v with
 		    /// <tt>nm[v]</tt> true, if such a node can be found.
 		    ///
 		    /// \param nm must be a bool (or convertible) node map. The
 		    /// algorithm will stop when it reaches a node \c v with
 		    /// <tt>nm[v]</tt> true.
 		    ///
 		    /// \return The reached node \c v with <tt>nm[v]</tt> true or
 		    /// \c INVALID if no such node was found.
 		    ///
 		    /// \pre init() must be called and at least one root node should be
 		    /// added with addSource() before using this function.
 		    ///
 		    /// \note <tt>b.start(nm)</tt> is just a shortcut of the following code.
 		    /// \code
 		    ///   Node rnode = INVALID;
 		    ///   while ( !b.emptyQueue() && rnode == INVALID ) {
 		    ///     b.processNextNode(nm, rnode);
 		    ///   }
 		    ///   return rnode;
 		    /// \endcode
 		    template <typename NM>
 		    Node start(const NM &nm) {
 		      Node rnode = INVALID;
 		      while ( !emptyQueue() && rnode == INVALID ) {
 		        processNextNode(nm, rnode);
+		      }
 		      return rnode;
+		    }
 		    /// \brief Runs the algorithm from the given source node.
 		    ///
 		    /// This method runs the %BFS algorithm from node \c s
 		    /// in order to compute the shortest path to each node.
 		    ///
 		    /// The algorithm computes
 		    /// - the shortest path tree,
 		    /// - the distance of each node from the root.
 		    ///
 		    /// \note <tt>b.run(s)</tt> is just a shortcut of the following code.
 		    ///\code
 		    ///   b.init();
 		    ///   b.addSource(s);
 		    ///   b.start();
 		    ///\endcode
 		    void run(Node s) {
 		      init();
 		      addSource(s);
 		      start();
+		    }
 		    /// \brief Finds the shortest path between \c s and \c t.
 		    ///
 		    /// This method runs the %BFS algorithm from node \c s
 		    /// in order to compute the shortest path to node \c t
 		    /// (it stops searching when \c t is processed).
 		    ///
 		    /// \return \c true if \c t is reachable form \c s.
 		    ///
 		    /// \note Apart from the return value, <tt>b.run(s,t)</tt> is just a
 		    /// shortcut of the following code.
 		    ///\code
 		    ///   b.init();
 		    ///   b.addSource(s);
 		    ///   b.start(t);
 		    ///\endcode
 		    bool run(Node s,Node t) {
 		      init();
 		      addSource(s);
 		      start(t);
 		      return reached(t);
+		    }
 		    /// \brief Runs the algorithm to visit all nodes in the digraph.
 		    ///
 		    /// This method runs the %BFS algorithm in order to
 		    /// compute the shortest path to each node.
 		    ///
 		    /// The algorithm computes
 		    /// - the shortest path tree (forest),
 		    /// - the distance of each node from the root(s).
 		    /// This method runs the %BFS algorithm in order to visit all nodes
 		    /// in the digraph.
 		    ///
 		    /// \note <tt>b.run(s)</tt> is just a shortcut of the following code.
 		    ///\code
 		    ///  b.init();
 		    ///  for (NodeIt n(gr); n != INVALID; ++n) {
 		    ///    if (!b.reached(n)) {
 		    ///      b.addSource(n);
 		    ///      b.start();
 		    ///    }
 		    ///  }
 		    ///\endcode
 		    void run() {
 		      init();
 		      for (NodeIt it(*_digraph); it != INVALID; ++it) {
 		        if (!reached(it)) {
 		          addSource(it);
 		          start();
+		        }
+		      }
+		    }
 		    ///@}
 		    /// \name Query Functions
 		    /// The results of the BFS algorithm can be obtained using these
 		    /// functions.\n
 		    /// Either \ref run(Node) "run()" or \ref start() should be called
 		    /// before using them.
 		    ///@{
 		    /// \brief Checks if the given node is reached from the root(s).
 		    ///
 		    /// Returns \c true if \c v is reached from the root(s).
 		    ///
 		    /// \pre Either \ref run(Node) "run()" or \ref init()
 		    /// must be called before using this function.
 		    bool reached(Node v) const { return (*_reached)[v]; }
 		    ///@}
 		  };
 		} //END OF NAMESPACE LEMON
 		#endif

lemon/dfs.h

Show inline comments

@@ -540,198 +540,194 @@
 		    ///\endcode
 		    void start()
+		    {
 		      while ( !emptyQueue() ) processNextArc();
+		    }
 		    ///Executes the algorithm until the given target node is reached.
 		    ///Executes the algorithm until the given target node is reached.
 		    ///
 		    ///This method runs the %DFS algorithm from the root node
 		    ///in order to compute the DFS path to \c t.
 		    ///
 		    ///The algorithm computes
 		    ///- the %DFS path to \c t,
 		    ///- the distance of \c t from the root in the %DFS tree.
 		    ///
 		    ///\pre init() must be called and a root node should be
 		    ///added with addSource() before using this function.
 		    void start(Node t)
+		    {
 		      while ( !emptyQueue() && G->target(_stack[_stack_head])!=t )
 		        processNextArc();
+		    }
 		    ///Executes the algorithm until a condition is met.
 		    ///Executes the algorithm until a condition is met.
 		    ///
 		    ///This method runs the %DFS algorithm from the root node
 		    ///until an arc \c a with <tt>am[a]</tt> true is found.
 		    ///
 		    ///\param am A \c bool (or convertible) arc map. The algorithm
 		    ///will stop when it reaches an arc \c a with <tt>am[a]</tt> true.
 		    ///
 		    ///\return The reached arc \c a with <tt>am[a]</tt> true or
 		    ///\c INVALID if no such arc was found.
 		    ///
 		    ///\pre init() must be called and a root node should be
 		    ///added with addSource() before using this function.
 		    ///
 		    ///\warning Contrary to \ref Bfs and \ref Dijkstra, \c am is an arc map,
 		    ///not a node map.
 		    template<class ArcBoolMap>
 		    Arc start(const ArcBoolMap &am)
+		    {
 		      while ( !emptyQueue() && !am[_stack[_stack_head]] )
 		        processNextArc();
 		      return emptyQueue() ? INVALID : _stack[_stack_head];
+		    }
 		    ///Runs the algorithm from the given source node.
 		    ///This method runs the %DFS algorithm from node \c s
 		    ///in order to compute the DFS path to each node.
 		    ///
 		    ///The algorithm computes
 		    ///- the %DFS tree,
 		    ///- the distance of each node from the root in the %DFS tree.
 		    ///
 		    ///\note <tt>d.run(s)</tt> is just a shortcut of the following code.
 		    ///\code
 		    ///  d.init();
 		    ///  d.addSource(s);
 		    ///  d.start();
 		    ///\endcode
 		    void run(Node s) {
 		      init();
 		      addSource(s);
 		      start();
+		    }
 		    ///Finds the %DFS path between \c s and \c t.
 		    ///This method runs the %DFS algorithm from node \c s
 		    ///in order to compute the DFS path to node \c t
 		    ///(it stops searching when \c t is processed)
 		    ///
 		    ///\return \c true if \c t is reachable form \c s.
 		    ///
 		    ///\note Apart from the return value, <tt>d.run(s,t)</tt> is
 		    ///just a shortcut of the following code.
 		    ///\code
 		    ///  d.init();
 		    ///  d.addSource(s);
 		    ///  d.start(t);
 		    ///\endcode
 		    bool run(Node s,Node t) {
 		      init();
 		      addSource(s);
 		      start(t);
 		      return reached(t);
+		    }
 		    ///Runs the algorithm to visit all nodes in the digraph.
 		    ///This method runs the %DFS algorithm in order to compute the
 		    ///%DFS path to each node.
 		    ///
 		    ///The algorithm computes
 		    ///- the %DFS tree (forest),
 		    ///- the distance of each node from the root(s) in the %DFS tree.
 		    ///This method runs the %DFS algorithm in order to visit all nodes
 		    ///in the digraph.
 		    ///
 		    ///\note <tt>d.run()</tt> is just a shortcut of the following code.
 		    ///\code
 		    ///  d.init();
 		    ///  for (NodeIt n(digraph); n != INVALID; ++n) {
 		    ///    if (!d.reached(n)) {
 		    ///      d.addSource(n);
 		    ///      d.start();
 		    ///    }
 		    ///  }
 		    ///\endcode
 		    void run() {
 		      init();
 		      for (NodeIt it(*G); it != INVALID; ++it) {
 		        if (!reached(it)) {
 		          addSource(it);
 		          start();
+		        }
+		      }
+		    }
 		    ///@}
 		    ///\name Query Functions
 		    ///The results of the DFS algorithm can be obtained using these
 		    ///functions.\n
 		    ///Either \ref run(Node) "run()" or \ref start() should be called
 		    ///before using them.
 		    ///@{
 		    ///The DFS path to the given node.
 		    ///Returns the DFS path to the given node from the root(s).
 		    ///
 		    ///\warning \c t should be reached from the root(s).
 		    ///
 		    ///\pre Either \ref run(Node) "run()" or \ref init()
 		    ///must be called before using this function.
 		    Path path(Node t) const { return Path(*G, *_pred, t); }
 		    ///The distance of the given node from the root(s).
 		    ///Returns the distance of the given node from the root(s).
 		    ///
 		    ///\warning If node \c v is not reached from the root(s), then
 		    ///the return value of this function is undefined.
 		    ///
 		    ///\pre Either \ref run(Node) "run()" or \ref init()
 		    ///must be called before using this function.
 		    int dist(Node v) const { return (*_dist)[v]; }
 		    ///Returns the 'previous arc' of the %DFS tree for the given node.
 		    ///This function returns the 'previous arc' of the %DFS tree for the
 		    ///node \c v, i.e. it returns the last arc of a %DFS path from a
 		    ///root to \c v. It is \c INVALID if \c v is not reached from the
 		    ///root(s) or if \c v is a root.
 		    ///
 		    ///The %DFS tree used here is equal to the %DFS tree used in
 		    ///\ref predNode() and \ref predMap().
 		    ///
 		    ///\pre Either \ref run(Node) "run()" or \ref init()
 		    ///must be called before using this function.
 		    Arc predArc(Node v) const { return (*_pred)[v];}
 		    ///Returns the 'previous node' of the %DFS tree for the given node.
 		    ///This function returns the 'previous node' of the %DFS
 		    ///tree for the node \c v, i.e. it returns the last but one node
 		    ///of a %DFS path from a root to \c v. It is \c INVALID
 		    ///if \c v is not reached from the root(s) or if \c v is a root.
 		    ///
 		    ///The %DFS tree used here is equal to the %DFS tree used in
 		    ///\ref predArc() and \ref predMap().
 		    ///
 		    ///\pre Either \ref run(Node) "run()" or \ref init()
 		    ///must be called before using this function.
 		    Node predNode(Node v) const { return (*_pred)[v]==INVALID ? INVALID:
 		                                  G->source((*_pred)[v]); }
 		    ///\brief Returns a const reference to the node map that stores the
 		    ///distances of the nodes.
 		    ///
 		    ///Returns a const reference to the node map that stores the
 		    ///distances of the nodes calculated by the algorithm.
 		    ///
 		    ///\pre Either \ref run(Node) "run()" or \ref init()
 		    ///must be called before using this function.
 		    const DistMap &distMap() const { return *_dist;}
 		    ///\brief Returns a const reference to the node map that stores the
 		    ///predecessor arcs.
 		    ///
 		    ///Returns a const reference to the node map that stores the predecessor
 		    ///arcs, which form the DFS tree (forest).
@@ -883,194 +879,194 @@
 		  };
 		  /// Auxiliary class for the function-type interface of DFS algorithm.
 		  /// This auxiliary class is created to implement the
 		  /// \ref dfs() "function-type interface" of \ref Dfs algorithm.
 		  /// It does not have own \ref run(Node) "run()" method, it uses the
 		  /// functions and features of the plain \ref Dfs.
 		  ///
 		  /// This class should only be used through the \ref dfs() function,
 		  /// which makes it easier to use the algorithm.
 		  template<class TR>
 		  class DfsWizard : public TR
+		  {
 		    typedef TR Base;
 		    typedef typename TR::Digraph Digraph;
 		    typedef typename Digraph::Node Node;
 		    typedef typename Digraph::NodeIt NodeIt;
 		    typedef typename Digraph::Arc Arc;
 		    typedef typename Digraph::OutArcIt OutArcIt;
 		    typedef typename TR::PredMap PredMap;
 		    typedef typename TR::DistMap DistMap;
 		    typedef typename TR::ReachedMap ReachedMap;
 		    typedef typename TR::ProcessedMap ProcessedMap;
 		    typedef typename TR::Path Path;
 		  public:
 		    /// Constructor.
 		    DfsWizard() : TR() {}
 		    /// Constructor that requires parameters.
 		    /// Constructor that requires parameters.
 		    /// These parameters will be the default values for the traits class.
 		    /// \param g The digraph the algorithm runs on.
 		    DfsWizard(const Digraph &g) :
 		      TR(g) {}
 		    ///Copy constructor
 		    DfsWizard(const TR &b) : TR(b) {}
 		    ~DfsWizard() {}
 		    ///Runs DFS algorithm from the given source node.
 		    ///This method runs DFS algorithm from node \c s
 		    ///in order to compute the DFS path to each node.
 		    void run(Node s)
+		    {
 		      Dfs<Digraph,TR> alg(*reinterpret_cast<const Digraph*>(Base::_g));
 		      if (Base::_pred)
 		        alg.predMap(*reinterpret_cast<PredMap*>(Base::_pred));
 		      if (Base::_dist)
 		        alg.distMap(*reinterpret_cast<DistMap*>(Base::_dist));
 		      if (Base::_reached)
 		        alg.reachedMap(*reinterpret_cast<ReachedMap*>(Base::_reached));
 		      if (Base::_processed)
 		        alg.processedMap(*reinterpret_cast<ProcessedMap*>(Base::_processed));
 		      if (s!=INVALID)
 		        alg.run(s);
 		      else
 		        alg.run();
+		    }
 		    ///Finds the DFS path between \c s and \c t.
 		    ///This method runs DFS algorithm from node \c s
 		    ///in order to compute the DFS path to node \c t
 		    ///(it stops searching when \c t is processed).
 		    ///
 		    ///\return \c true if \c t is reachable form \c s.
 		    bool run(Node s, Node t)
+		    {
 		      Dfs<Digraph,TR> alg(*reinterpret_cast<const Digraph*>(Base::_g));
 		      if (Base::_pred)
 		        alg.predMap(*reinterpret_cast<PredMap*>(Base::_pred));
 		      if (Base::_dist)
 		        alg.distMap(*reinterpret_cast<DistMap*>(Base::_dist));
 		      if (Base::_reached)
 		        alg.reachedMap(*reinterpret_cast<ReachedMap*>(Base::_reached));
 		      if (Base::_processed)
 		        alg.processedMap(*reinterpret_cast<ProcessedMap*>(Base::_processed));
 		      alg.run(s,t);
 		      if (Base::_path)
 		        *reinterpret_cast<Path*>(Base::_path) = alg.path(t);
 		      if (Base::_di)
 		        *Base::_di = alg.dist(t);
 		      return alg.reached(t);
+		      }
 		    ///Runs DFS algorithm to visit all nodes in the digraph.
 		    ///This method runs DFS algorithm in order to compute
 		    ///the DFS path to each node.
 		    ///This method runs DFS algorithm in order to visit all nodes
 		    ///in the digraph.
 		    void run()
+		    {
 		      run(INVALID);
+		    }
 		    template<class T>
 		    struct SetPredMapBase : public Base {
 		      typedef T PredMap;
 		      static PredMap *createPredMap(const Digraph &) { return 0; };
 		      SetPredMapBase(const TR &b) : TR(b) {}
 		    };
 		    ///\brief \ref named-templ-param "Named parameter" for setting
 		    ///the predecessor map.
 		    ///
 		    ///\ref named-templ-param "Named parameter" function for setting
 		    ///the map that stores the predecessor arcs of the nodes.
 		    template<class T>
 		    DfsWizard<SetPredMapBase<T> > predMap(const T &t)
+		    {
 		      Base::_pred=reinterpret_cast<void*>(const_cast<T*>(&t));
 		      return DfsWizard<SetPredMapBase<T> >(*this);
+		    }
 		    template<class T>
 		    struct SetReachedMapBase : public Base {
 		      typedef T ReachedMap;
 		      static ReachedMap *createReachedMap(const Digraph &) { return 0; };
 		      SetReachedMapBase(const TR &b) : TR(b) {}
 		    };
 		    ///\brief \ref named-templ-param "Named parameter" for setting
 		    ///the reached map.
 		    ///
 		    ///\ref named-templ-param "Named parameter" function for setting
 		    ///the map that indicates which nodes are reached.
 		    template<class T>
 		    DfsWizard<SetReachedMapBase<T> > reachedMap(const T &t)
+		    {
 		      Base::_reached=reinterpret_cast<void*>(const_cast<T*>(&t));
 		      return DfsWizard<SetReachedMapBase<T> >(*this);
+		    }
 		    template<class T>
 		    struct SetDistMapBase : public Base {
 		      typedef T DistMap;
 		      static DistMap *createDistMap(const Digraph &) { return 0; };
 		      SetDistMapBase(const TR &b) : TR(b) {}
 		    };
 		    ///\brief \ref named-templ-param "Named parameter" for setting
 		    ///the distance map.
 		    ///
 		    ///\ref named-templ-param "Named parameter" function for setting
 		    ///the map that stores the distances of the nodes calculated
 		    ///by the algorithm.
 		    template<class T>
 		    DfsWizard<SetDistMapBase<T> > distMap(const T &t)
+		    {
 		      Base::_dist=reinterpret_cast<void*>(const_cast<T*>(&t));
 		      return DfsWizard<SetDistMapBase<T> >(*this);
+		    }
 		    template<class T>
 		    struct SetProcessedMapBase : public Base {
 		      typedef T ProcessedMap;
 		      static ProcessedMap *createProcessedMap(const Digraph &) { return 0; };
 		      SetProcessedMapBase(const TR &b) : TR(b) {}
 		    };
 		    ///\brief \ref named-func-param "Named parameter" for setting
 		    ///the processed map.
 		    ///
 		    ///\ref named-templ-param "Named parameter" function for setting
 		    ///the map that indicates which nodes are processed.
 		    template<class T>
 		    DfsWizard<SetProcessedMapBase<T> > processedMap(const T &t)
+		    {
 		      Base::_processed=reinterpret_cast<void*>(const_cast<T*>(&t));
 		      return DfsWizard<SetProcessedMapBase<T> >(*this);
+		    }
 		    template<class T>
 		    struct SetPathBase : public Base {
 		      typedef T Path;
 		      SetPathBase(const TR &b) : TR(b) {}
 		    };
 		    ///\brief \ref named-func-param "Named parameter"
 		    ///for getting the DFS path to the target node.
 		    ///
 		    ///\ref named-func-param "Named parameter"
 		    ///for getting the DFS path to the target node.
 		    template<class T>
 		    DfsWizard<SetPathBase<T> > path(const T &t)
+		    {
 		      Base::_path=reinterpret_cast<void*>(const_cast<T*>(&t));
@@ -1485,148 +1481,144 @@
 		    ///   while ( !d.emptyQueue() ) {
 		    ///     d.processNextArc();
 		    ///   }
 		    /// \endcode
 		    void start() {
 		      while ( !emptyQueue() ) processNextArc();
+		    }
 		    /// \brief Executes the algorithm until the given target node is reached.
 		    ///
 		    /// Executes the algorithm until the given target node is reached.
 		    ///
 		    /// This method runs the %DFS algorithm from the root node
 		    /// in order to compute the DFS path to \c t.
 		    ///
 		    /// The algorithm computes
 		    /// - the %DFS path to \c t,
 		    /// - the distance of \c t from the root in the %DFS tree.
 		    ///
 		    /// \pre init() must be called and a root node should be added
 		    /// with addSource() before using this function.
 		    void start(Node t) {
 		      while ( !emptyQueue() && _digraph->target(_stack[_stack_head]) != t )
 		        processNextArc();
+		    }
 		    /// \brief Executes the algorithm until a condition is met.
 		    ///
 		    /// Executes the algorithm until a condition is met.
 		    ///
 		    /// This method runs the %DFS algorithm from the root node
 		    /// until an arc \c a with <tt>am[a]</tt> true is found.
 		    ///
 		    /// \param am A \c bool (or convertible) arc map. The algorithm
 		    /// will stop when it reaches an arc \c a with <tt>am[a]</tt> true.
 		    ///
 		    /// \return The reached arc \c a with <tt>am[a]</tt> true or
 		    /// \c INVALID if no such arc was found.
 		    ///
 		    /// \pre init() must be called and a root node should be added
 		    /// with addSource() before using this function.
 		    ///
 		    /// \warning Contrary to \ref Bfs and \ref Dijkstra, \c am is an arc map,
 		    /// not a node map.
 		    template <typename AM>
 		    Arc start(const AM &am) {
 		      while ( !emptyQueue() && !am[_stack[_stack_head]] )
 		        processNextArc();
 		      return emptyQueue() ? INVALID : _stack[_stack_head];
+		    }
 		    /// \brief Runs the algorithm from the given source node.
 		    ///
 		    /// This method runs the %DFS algorithm from node \c s.
 		    /// in order to compute the DFS path to each node.
 		    ///
 		    /// The algorithm computes
 		    /// - the %DFS tree,
 		    /// - the distance of each node from the root in the %DFS tree.
 		    ///
 		    /// \note <tt>d.run(s)</tt> is just a shortcut of the following code.
 		    ///\code
 		    ///   d.init();
 		    ///   d.addSource(s);
 		    ///   d.start();
 		    ///\endcode
 		    void run(Node s) {
 		      init();
 		      addSource(s);
 		      start();
+		    }
 		    /// \brief Finds the %DFS path between \c s and \c t.
 		    /// This method runs the %DFS algorithm from node \c s
 		    /// in order to compute the DFS path to node \c t
 		    /// (it stops searching when \c t is processed).
 		    ///
 		    /// \return \c true if \c t is reachable form \c s.
 		    ///
 		    /// \note Apart from the return value, <tt>d.run(s,t)</tt> is
 		    /// just a shortcut of the following code.
 		    ///\code
 		    ///   d.init();
 		    ///   d.addSource(s);
 		    ///   d.start(t);
 		    ///\endcode
 		    bool run(Node s,Node t) {
 		      init();
 		      addSource(s);
 		      start(t);
 		      return reached(t);
+		    }
 		    /// \brief Runs the algorithm to visit all nodes in the digraph.
 		    /// This method runs the %DFS algorithm in order to
 		    /// compute the %DFS path to each node.
 		    ///
 		    /// The algorithm computes
 		    /// - the %DFS tree (forest),
 		    /// - the distance of each node from the root(s) in the %DFS tree.
 		    /// This method runs the %DFS algorithm in order to visit all nodes
 		    /// in the digraph.
 		    ///
 		    /// \note <tt>d.run()</tt> is just a shortcut of the following code.
 		    ///\code
 		    ///   d.init();
 		    ///   for (NodeIt n(digraph); n != INVALID; ++n) {
 		    ///     if (!d.reached(n)) {
 		    ///       d.addSource(n);
 		    ///       d.start();
 		    ///     }
 		    ///   }
 		    ///\endcode
 		    void run() {
 		      init();
 		      for (NodeIt it(*_digraph); it != INVALID; ++it) {
 		        if (!reached(it)) {
 		          addSource(it);
 		          start();
+		        }
+		      }
+		    }
 		    ///@}
 		    /// \name Query Functions
 		    /// The results of the DFS algorithm can be obtained using these
 		    /// functions.\n
 		    /// Either \ref run(Node) "run()" or \ref start() should be called
 		    /// before using them.
 		    ///@{
 		    /// \brief Checks if the given node is reached from the root(s).
 		    ///
 		    /// Returns \c true if \c v is reached from the root(s).
 		    ///
 		    /// \pre Either \ref run(Node) "run()" or \ref init()
 		    /// must be called before using this function.
 		    bool reached(Node v) const { return (*_reached)[v]; }
 		    ///@}
 		  };
 		} //END OF NAMESPACE LEMON
 		#endif

lemon/dijkstra.h

Show inline comments

@@ -113,193 +113,193 @@
 		    ///\brief The type of the map that stores the predecessor
 		    ///arcs of the shortest paths.
 		    ///
 		    ///The type of the map that stores the predecessor
 		    ///arcs of the shortest paths.
 		    ///It must conform to the \ref concepts::WriteMap "WriteMap" concept.
 		    typedef typename Digraph::template NodeMap<typename Digraph::Arc> PredMap;
 		    ///Instantiates a \c PredMap.
 		    ///This function instantiates a \ref PredMap.
 		    ///\param g is the digraph, to which we would like to define the
 		    ///\ref PredMap.
 		    static PredMap *createPredMap(const Digraph &g)
+		    {
 		      return new PredMap(g);
+		    }
 		    ///The type of the map that indicates which nodes are processed.
 		    ///The type of the map that indicates which nodes are processed.
 		    ///It must conform to the \ref concepts::WriteMap "WriteMap" concept.
 		    ///By default it is a NullMap.
 		    typedef NullMap<typename Digraph::Node,bool> ProcessedMap;
 		    ///Instantiates a \c ProcessedMap.
 		    ///This function instantiates a \ref ProcessedMap.
 		    ///\param g is the digraph, to which
 		    ///we would like to define the \ref ProcessedMap.
 		#ifdef DOXYGEN
 		    static ProcessedMap *createProcessedMap(const Digraph &g)
 		#else
 		    static ProcessedMap *createProcessedMap(const Digraph &)
 		#endif
+		    {
 		      return new ProcessedMap();
+		    }
 		    ///The type of the map that stores the distances of the nodes.
 		    ///The type of the map that stores the distances of the nodes.
 		    ///It must conform to the \ref concepts::WriteMap "WriteMap" concept.
 		    typedef typename Digraph::template NodeMap<typename LEN::Value> DistMap;
 		    ///Instantiates a \c DistMap.
 		    ///This function instantiates a \ref DistMap.
 		    ///\param g is the digraph, to which we would like to define
 		    ///the \ref DistMap.
 		    static DistMap *createDistMap(const Digraph &g)
+		    {
 		      return new DistMap(g);
+		    }
 		  };
 		  ///%Dijkstra algorithm class.
 		  /// \ingroup shortest_path
 		  ///This class provides an efficient implementation of the %Dijkstra algorithm.
 		  ///
 		  ///The %Dijkstra algorithm solves the single-source shortest path problem
 		  ///when all arc lengths are non-negative. If there are negative lengths,
 		  ///the BellmanFord algorithm should be used instead.
 		  ///
 		  ///The arc lengths are passed to the algorithm using a
 		  ///\ref concepts::ReadMap "ReadMap",
 		  ///so it is easy to change it to any kind of length.
 		  ///The type of the length is determined by the
 		  ///\ref concepts::ReadMap::Value "Value" of the length map.
 		  ///It is also possible to change the underlying priority heap.
 		  ///
 		  ///There is also a \ref dijkstra() "function-type interface" for the
 		  ///%Dijkstra algorithm, which is convenient in the simplier cases and
 		  ///it can be used easier.
 		  ///
 		  ///\tparam GR The type of the digraph the algorithm runs on.
 		  ///The default type is \ref ListDigraph.
 		  ///\tparam LEN A \ref concepts::ReadMap "readable" arc map that specifies
 		  ///the lengths of the arcs.
 		  ///It is read once for each arc, so the map may involve in
 		  ///relatively time consuming process to compute the arc lengths if
 		  ///it is necessary. The default map type is \ref
 		  ///concepts::Digraph::ArcMap "GR::ArcMap<int>".
 		#ifdef DOXYGEN
 		  template <typename GR, typename LEN, typename TR>
 		#else
 		  template <typename GR=ListDigraph,
 		            typename LEN=typename GR::template ArcMap<int>,
 		            typename TR=DijkstraDefaultTraits<GR,LEN> >
 		#endif
 		  class Dijkstra {
 		  public:
 		    ///The type of the digraph the algorithm runs on.
 		    typedef typename TR::Digraph Digraph;
 		    ///The type of the arc lengths.
-		    typedef typename TR::LengthMap::Value Value;
 		    typedef typename TR::Value Value;
 		    ///The type of the map that stores the arc lengths.
 		    typedef typename TR::LengthMap LengthMap;
 		    ///\brief The type of the map that stores the predecessor arcs of the
 		    ///shortest paths.
 		    typedef typename TR::PredMap PredMap;
 		    ///The type of the map that stores the distances of the nodes.
 		    typedef typename TR::DistMap DistMap;
 		    ///The type of the map that indicates which nodes are processed.
 		    typedef typename TR::ProcessedMap ProcessedMap;
 		    ///The type of the paths.
 		    typedef PredMapPath<Digraph, PredMap> Path;
 		    ///The cross reference type used for the current heap.
 		    typedef typename TR::HeapCrossRef HeapCrossRef;
 		    ///The heap type used by the algorithm.
 		    typedef typename TR::Heap Heap;
 		    ///\brief The \ref DijkstraDefaultOperationTraits "operation traits class"
 		    ///of the algorithm.
 		    typedef typename TR::OperationTraits OperationTraits;
 		    ///The \ref DijkstraDefaultTraits "traits class" of the algorithm.
 		    typedef TR Traits;
 		  private:
 		    typedef typename Digraph::Node Node;
 		    typedef typename Digraph::NodeIt NodeIt;
 		    typedef typename Digraph::Arc Arc;
 		    typedef typename Digraph::OutArcIt OutArcIt;
 		    //Pointer to the underlying digraph.
 		    const Digraph *G;
 		    //Pointer to the length map.
 		    const LengthMap *_length;
 		    //Pointer to the map of predecessors arcs.
 		    PredMap *_pred;
 		    //Indicates if _pred is locally allocated (true) or not.
 		    bool local_pred;
 		    //Pointer to the map of distances.
 		    DistMap *_dist;
 		    //Indicates if _dist is locally allocated (true) or not.
 		    bool local_dist;
 		    //Pointer to the map of processed status of the nodes.
 		    ProcessedMap *_processed;
 		    //Indicates if _processed is locally allocated (true) or not.
 		    bool local_processed;
 		    //Pointer to the heap cross references.
 		    HeapCrossRef *_heap_cross_ref;
 		    //Indicates if _heap_cross_ref is locally allocated (true) or not.
 		    bool local_heap_cross_ref;
 		    //Pointer to the heap.
 		    Heap *_heap;
 		    //Indicates if _heap is locally allocated (true) or not.
 		    bool local_heap;
 		    //Creates the maps if necessary.
 		    void create_maps()
+		    {
 		      if(!_pred) {
 		        local_pred = true;
 		        _pred = Traits::createPredMap(*G);
+		      }
 		      if(!_dist) {
 		        local_dist = true;
 		        _dist = Traits::createDistMap(*G);
+		      }
 		      if(!_processed) {
 		        local_processed = true;
 		        _processed = Traits::createProcessedMap(*G);
+		      }
 		      if (!_heap_cross_ref) {
 		        local_heap_cross_ref = true;
 		        _heap_cross_ref = Traits::createHeapCrossRef(*G);
+		      }
 		      if (!_heap) {
 		        local_heap = true;
 		        _heap = Traits::createHeap(*_heap_cross_ref);
+		      }
+		    }
 		  public:
 		    typedef Dijkstra Create;
 		    ///\name Named Template Parameters
 		    ///@{
 		    template <class T>
 		    struct SetPredMapTraits : public Traits {
 		      typedef T PredMap;
 		      static PredMap *createPredMap(const Digraph &)
+		      {
 		        LEMON_ASSERT(false, "PredMap is not initialized");
 		        return 0; // ignore warnings
+		      }
 		    };

lemon/edge_set.h

Show inline comments

@@ -162,199 +162,200 @@
 		        next(node);
+		      }
 		      arc.id = (node == INVALID) ? -1 : (*_nodes)[node].first_in;
+		    }
 		    void next(Arc& arc) const {
 		      if (arcs[arc.id].next_in != -1) {
 		        arc.id = arcs[arc.id].next_in;
 		      } else {
 		        Node node = arcs[arc.id].target;
 		        next(node);
 		        while (node != INVALID && (*_nodes)[node].first_in == -1) {
 		          next(node);
+		        }
 		        arc.id = (node == INVALID) ? -1 : (*_nodes)[node].first_in;
+		      }
+		    }
 		    void firstOut(Arc& arc, const Node& node) const {
 		      arc.id = (*_nodes)[node].first_out;
+		    }
 		    void nextOut(Arc& arc) const {
 		      arc.id = arcs[arc.id].next_out;
+		    }
 		    void firstIn(Arc& arc, const Node& node) const {
 		      arc.id = (*_nodes)[node].first_in;
+		    }
 		    void nextIn(Arc& arc) const {
 		      arc.id = arcs[arc.id].next_in;
+		    }
 		    int id(const Node& node) const { return _graph->id(node); }
 		    int id(const Arc& arc) const { return arc.id; }
 		    Node nodeFromId(int ix) const { return _graph->nodeFromId(ix); }
 		    Arc arcFromId(int ix) const { return Arc(ix); }
 		    int maxNodeId() const { return _graph->maxNodeId(); };
 		    int maxArcId() const { return arcs.size() - 1; }
 		    Node source(const Arc& arc) const { return arcs[arc.id].source;}
 		    Node target(const Arc& arc) const { return arcs[arc.id].target;}
 		    typedef typename ItemSetTraits<GR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const {
 		      return _graph->notifier(Node());
+		    }
 		    template <typename V>
 		    class NodeMap : public GR::template NodeMap<V> {
 		      typedef typename GR::template NodeMap<V> Parent;
 		    public:
 		      explicit NodeMap(const ListArcSetBase<GR>& arcset)
 		        : Parent(*arcset._graph) {}
 		      NodeMap(const ListArcSetBase<GR>& arcset, const V& value)
 		        : Parent(*arcset._graph, value) {}
 		      NodeMap& operator=(const NodeMap& cmap) {
 		        return operator=<NodeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  };
 		  /// \ingroup graphs
 		  ///
 		  /// \brief Digraph using a node set of another digraph or graph and
 		  /// an own arc set.
 		  ///
 		  /// This structure can be used to establish another directed graph
 		  /// over a node set of an existing one. This class uses the same
 		  /// Node type as the underlying graph, and each valid node of the
 		  /// original graph is valid in this arc set, therefore the node
 		  /// objects of the original graph can be used directly with this
 		  /// class. The node handling functions (id handling, observing, and
 		  /// iterators) works equivalently as in the original graph.
 		  ///
 		  /// This implementation is based on doubly-linked lists, from each
 		  /// node the outgoing and the incoming arcs make up lists, therefore
 		  /// one arc can be erased in constant time. It also makes possible,
 		  /// that node can be removed from the underlying graph, in this case
 		  /// all arcs incident to the given node is erased from the arc set.
 		  ///
 		  /// This class fully conforms to the \ref concepts::Digraph
 		  /// "Digraph" concept.
 		  /// It provides only linear time counting for nodes and arcs.
 		  ///
 		  /// \param GR The type of the graph which shares its node set with
 		  /// this class. Its interface must conform to the
 		  /// \ref concepts::Digraph "Digraph" or \ref concepts::Graph "Graph"
 		  /// concept.
 		  ///
 		  /// This class fully conforms to the \ref concepts::Digraph
 		  /// "Digraph" concept.
 		  template <typename GR>
 		  class ListArcSet : public ArcSetExtender<ListArcSetBase<GR> > {
 		    typedef ArcSetExtender<ListArcSetBase<GR> > Parent;
 		  public:
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    typedef typename Parent::NodesImplBase NodesImplBase;
 		    void eraseNode(const Node& node) {
 		      Arc arc;
 		      Parent::firstOut(arc, node);
 		      while (arc != INVALID ) {
 		        erase(arc);
 		        Parent::firstOut(arc, node);
+		      }
 		      Parent::firstIn(arc, node);
 		      while (arc != INVALID ) {
 		        erase(arc);
 		        Parent::firstIn(arc, node);
+		      }
+		    }
 		    void clearNodes() {
 		      Parent::clear();
+		    }
 		    class NodesImpl : public NodesImplBase {
 		      typedef NodesImplBase Parent;
 		    public:
 		      NodesImpl(const GR& graph, ListArcSet& arcset)
 		        : Parent(graph), _arcset(arcset) {}
 		      virtual ~NodesImpl() {}
 		    protected:
 		      virtual void erase(const Node& node) {
 		        _arcset.eraseNode(node);
 		        Parent::erase(node);
+		      }
 		      virtual void erase(const std::vector<Node>& nodes) {
 		        for (int i = 0; i < int(nodes.size()); ++i) {
 		          _arcset.eraseNode(nodes[i]);
+		        }
 		        Parent::erase(nodes);
+		      }
 		      virtual void clear() {
 		        _arcset.clearNodes();
 		        Parent::clear();
+		      }
 		    private:
 		      ListArcSet& _arcset;
 		    };
 		    NodesImpl _nodes;
 		  public:
 		    /// \brief Constructor of the ArcSet.
 		    ///
 		    /// Constructor of the ArcSet.
 		    ListArcSet(const GR& graph) : _nodes(graph, *this) {
 		      Parent::initalize(graph, _nodes);
+		    }
 		    /// \brief Add a new arc to the digraph.
 		    ///
 		    /// Add a new arc to the digraph with source node \c s
 		    /// and target node \c t.
 		    /// \return The new arc.
 		    Arc addArc(const Node& s, const Node& t) {
 		      return Parent::addArc(s, t);
+		    }
 		    /// \brief Erase an arc from the digraph.
 		    ///
 		    /// Erase an arc \c a from the digraph.
 		    void erase(const Arc& a) {
 		      return Parent::erase(a);
+		    }
 		  };
 		  template <typename GR>
 		  class ListEdgeSetBase {
 		  public:
 		    typedef typename GR::Node Node;
 		    typedef typename GR::NodeIt NodeIt;
@@ -592,199 +593,200 @@
 		      int de = (*_nodes)[node].first_out;
 		      if (de != -1 ) {
 		        arc.id = de / 2;
 		        dir = ((de & 1) == 1);
 		      } else {
 		        arc.id = -1;
 		        dir = true;
+		      }
+		    }
 		    void nextInc(Edge &arc, bool& dir) const {
 		      int de = (arcs[(arc.id * 2) | (dir ? 1 : 0)].next_out);
 		      if (de != -1 ) {
 		        arc.id = de / 2;
 		        dir = ((de & 1) == 1);
 		      } else {
 		        arc.id = -1;
 		        dir = true;
+		      }
+		    }
 		    static bool direction(Arc arc) {
 		      return (arc.id & 1) == 1;
+		    }
 		    static Arc direct(Edge edge, bool dir) {
 		      return Arc(edge.id * 2 + (dir ? 1 : 0));
+		    }
 		    int id(const Node& node) const { return _graph->id(node); }
 		    static int id(Arc e) { return e.id; }
 		    static int id(Edge e) { return e.id; }
 		    Node nodeFromId(int id) const { return _graph->nodeFromId(id); }
 		    static Arc arcFromId(int id) { return Arc(id);}
 		    static Edge edgeFromId(int id) { return Edge(id);}
 		    int maxNodeId() const { return _graph->maxNodeId(); };
 		    int maxEdgeId() const { return arcs.size() / 2 - 1; }
 		    int maxArcId() const { return arcs.size()-1; }
 		    Node source(Arc e) const { return arcs[e.id ^ 1].target; }
 		    Node target(Arc e) const { return arcs[e.id].target; }
 		    Node u(Edge e) const { return arcs[2 * e.id].target; }
 		    Node v(Edge e) const { return arcs[2 * e.id + 1].target; }
 		    typedef typename ItemSetTraits<GR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const {
 		      return _graph->notifier(Node());
+		    }
 		    template <typename V>
 		    class NodeMap : public GR::template NodeMap<V> {
 		      typedef typename GR::template NodeMap<V> Parent;
 		    public:
 		      explicit NodeMap(const ListEdgeSetBase<GR>& arcset)
 		        : Parent(*arcset._graph) {}
 		      NodeMap(const ListEdgeSetBase<GR>& arcset, const V& value)
 		        : Parent(*arcset._graph, value) {}
 		      NodeMap& operator=(const NodeMap& cmap) {
 		        return operator=<NodeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  };
 		  /// \ingroup graphs
 		  ///
 		  /// \brief Graph using a node set of another digraph or graph and an
 		  /// own edge set.
 		  ///
 		  /// This structure can be used to establish another graph over a
 		  /// node set of an existing one. This class uses the same Node type
 		  /// as the underlying graph, and each valid node of the original
 		  /// graph is valid in this arc set, therefore the node objects of
 		  /// the original graph can be used directly with this class. The
 		  /// node handling functions (id handling, observing, and iterators)
 		  /// works equivalently as in the original graph.
 		  ///
 		  /// This implementation is based on doubly-linked lists, from each
 		  /// node the incident edges make up lists, therefore one edge can be
 		  /// erased in constant time. It also makes possible, that node can
 		  /// be removed from the underlying graph, in this case all edges
 		  /// incident to the given node is erased from the arc set.
 		  ///
 		  /// This class fully conforms to the \ref concepts::Graph "Graph"
 		  /// concept.
 		  /// It provides only linear time counting for nodes, edges and arcs.
 		  ///
 		  /// \param GR The type of the graph which shares its node set
 		  /// with this class. Its interface must conform to the
 		  /// \ref concepts::Digraph "Digraph" or \ref concepts::Graph "Graph"
 		  /// concept.
 		  ///
 		  /// This class fully conforms to the \ref concepts::Graph "Graph"
 		  /// concept.
 		  template <typename GR>
 		  class ListEdgeSet : public EdgeSetExtender<ListEdgeSetBase<GR> > {
 		    typedef EdgeSetExtender<ListEdgeSetBase<GR> > Parent;
 		  public:
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    typedef typename Parent::Edge Edge;
 		    typedef typename Parent::NodesImplBase NodesImplBase;
 		    void eraseNode(const Node& node) {
 		      Arc arc;
 		      Parent::firstOut(arc, node);
 		      while (arc != INVALID ) {
 		        erase(arc);
 		        Parent::firstOut(arc, node);
+		      }
+		    }
 		    void clearNodes() {
 		      Parent::clear();
+		    }
 		    class NodesImpl : public NodesImplBase {
 		      typedef NodesImplBase Parent;
 		    public:
 		      NodesImpl(const GR& graph, ListEdgeSet& arcset)
 		        : Parent(graph), _arcset(arcset) {}
 		      virtual ~NodesImpl() {}
 		    protected:
 		      virtual void erase(const Node& node) {
 		        _arcset.eraseNode(node);
 		        Parent::erase(node);
+		      }
 		      virtual void erase(const std::vector<Node>& nodes) {
 		        for (int i = 0; i < int(nodes.size()); ++i) {
 		          _arcset.eraseNode(nodes[i]);
+		        }
 		        Parent::erase(nodes);
+		      }
 		      virtual void clear() {
 		        _arcset.clearNodes();
 		        Parent::clear();
+		      }
 		    private:
 		      ListEdgeSet& _arcset;
 		    };
 		    NodesImpl _nodes;
 		  public:
 		    /// \brief Constructor of the EdgeSet.
 		    ///
 		    /// Constructor of the EdgeSet.
 		    ListEdgeSet(const GR& graph) : _nodes(graph, *this) {
 		      Parent::initalize(graph, _nodes);
+		    }
 		    /// \brief Add a new edge to the graph.
 		    ///
 		    /// Add a new edge to the graph with node \c u
 		    /// and node \c v endpoints.
 		    /// \return The new edge.
 		    Edge addEdge(const Node& u, const Node& v) {
 		      return Parent::addEdge(u, v);
+		    }
 		    /// \brief Erase an edge from the graph.
 		    ///
 		    /// Erase the edge \c e from the graph.
 		    void erase(const Edge& e) {
 		      return Parent::erase(e);
+		    }
 		  };
 		  template <typename GR>
 		  class SmartArcSetBase {
 		  public:
 		    typedef typename GR::Node Node;
 		    typedef typename GR::NodeIt NodeIt;
 		  protected:
 		    struct NodeT {
 		      int first_out, first_in;
@@ -861,199 +863,200 @@
 		    void next(Node& node) const {
 		      _graph->next(node);
+		    }
 		    void first(Arc& arc) const {
 		      arc.id = arcs.size() - 1;
+		    }
 		    static void next(Arc& arc) {
 		      --arc.id;
+		    }
 		    void firstOut(Arc& arc, const Node& node) const {
 		      arc.id = (*_nodes)[node].first_out;
+		    }
 		    void nextOut(Arc& arc) const {
 		      arc.id = arcs[arc.id].next_out;
+		    }
 		    void firstIn(Arc& arc, const Node& node) const {
 		      arc.id = (*_nodes)[node].first_in;
+		    }
 		    void nextIn(Arc& arc) const {
 		      arc.id = arcs[arc.id].next_in;
+		    }
 		    int id(const Node& node) const { return _graph->id(node); }
 		    int id(const Arc& arc) const { return arc.id; }
 		    Node nodeFromId(int ix) const { return _graph->nodeFromId(ix); }
 		    Arc arcFromId(int ix) const { return Arc(ix); }
 		    int maxNodeId() const { return _graph->maxNodeId(); };
 		    int maxArcId() const { return arcs.size() - 1; }
 		    Node source(const Arc& arc) const { return arcs[arc.id].source;}
 		    Node target(const Arc& arc) const { return arcs[arc.id].target;}
 		    typedef typename ItemSetTraits<GR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const {
 		      return _graph->notifier(Node());
+		    }
 		    template <typename V>
 		    class NodeMap : public GR::template NodeMap<V> {
 		      typedef typename GR::template NodeMap<V> Parent;
 		    public:
 		      explicit NodeMap(const SmartArcSetBase<GR>& arcset)
 		        : Parent(*arcset._graph) { }
 		      NodeMap(const SmartArcSetBase<GR>& arcset, const V& value)
 		        : Parent(*arcset._graph, value) { }
 		      NodeMap& operator=(const NodeMap& cmap) {
 		        return operator=<NodeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  };
 		  /// \ingroup graphs
 		  ///
 		  /// \brief Digraph using a node set of another digraph or graph and
 		  /// an own arc set.
 		  ///
 		  /// This structure can be used to establish another directed graph
 		  /// over a node set of an existing one. This class uses the same
 		  /// Node type as the underlying graph, and each valid node of the
 		  /// original graph is valid in this arc set, therefore the node
 		  /// objects of the original graph can be used directly with this
 		  /// class. The node handling functions (id handling, observing, and
 		  /// iterators) works equivalently as in the original graph.
 		  ///
 		  /// \param GR The type of the graph which shares its node set with
 		  /// this class. Its interface must conform to the
 		  /// \ref concepts::Digraph "Digraph" or \ref concepts::Graph "Graph"
 		  /// concept.
 		  ///
 		  /// This implementation is slightly faster than the \c ListArcSet,
 		  /// because it uses continuous storage for arcs and it uses just
 		  /// single-linked lists for enumerate outgoing and incoming
 		  /// arcs. Therefore the arcs cannot be erased from the arc sets.
 		  ///
 		  /// This class fully conforms to the \ref concepts::Digraph "Digraph"
 		  /// concept.
 		  /// It provides only linear time counting for nodes and arcs.
 		  ///
 		  /// \warning If a node is erased from the underlying graph and this
 		  /// node is the source or target of one arc in the arc set, then
 		  /// the arc set is invalidated, and it cannot be used anymore. The
 		  /// validity can be checked with the \c valid() member function.
 		  ///
 		  /// This class fully conforms to the \ref concepts::Digraph
 		  /// "Digraph" concept.
 		  template <typename GR>
 		  class SmartArcSet : public ArcSetExtender<SmartArcSetBase<GR> > {
 		    typedef ArcSetExtender<SmartArcSetBase<GR> > Parent;
 		  public:
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		  protected:
 		    typedef typename Parent::NodesImplBase NodesImplBase;
 		    void eraseNode(const Node& node) {
 		      if (typename Parent::InArcIt(*this, node) == INVALID &&
 		          typename Parent::OutArcIt(*this, node) == INVALID) {
 		        return;
+		      }
 		      throw typename NodesImplBase::Notifier::ImmediateDetach();
+		    }
 		    void clearNodes() {
 		      Parent::clear();
+		    }
 		    class NodesImpl : public NodesImplBase {
 		      typedef NodesImplBase Parent;
 		    public:
 		      NodesImpl(const GR& graph, SmartArcSet& arcset)
 		        : Parent(graph), _arcset(arcset) {}
 		      virtual ~NodesImpl() {}
 		      bool attached() const {
 		        return Parent::attached();
+		      }
 		    protected:
 		      virtual void erase(const Node& node) {
 		        try {
 		          _arcset.eraseNode(node);
 		          Parent::erase(node);
 		        } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) {
 		          Parent::clear();
 		          throw;
+		        }
+		      }
 		      virtual void erase(const std::vector<Node>& nodes) {
 		        try {
 		          for (int i = 0; i < int(nodes.size()); ++i) {
 		            _arcset.eraseNode(nodes[i]);
+		          }
 		          Parent::erase(nodes);
 		        } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) {
 		          Parent::clear();
 		          throw;
+		        }
+		      }
 		      virtual void clear() {
 		        _arcset.clearNodes();
 		        Parent::clear();
+		      }
 		    private:
 		      SmartArcSet& _arcset;
 		    };
 		    NodesImpl _nodes;
 		  public:
 		    /// \brief Constructor of the ArcSet.
 		    ///
 		    /// Constructor of the ArcSet.
 		    SmartArcSet(const GR& graph) : _nodes(graph, *this) {
 		      Parent::initalize(graph, _nodes);
+		    }
 		    /// \brief Add a new arc to the digraph.
 		    ///
 		    /// Add a new arc to the digraph with source node \c s
 		    /// and target node \c t.
 		    /// \return The new arc.
 		    Arc addArc(const Node& s, const Node& t) {
 		      return Parent::addArc(s, t);
+		    }
 		    /// \brief Validity check
 		    ///
 		    /// This functions gives back false if the ArcSet is
 		    /// invalidated. It occurs when a node in the underlying graph is
 		    /// erased and it is not isolated in the ArcSet.
 		    bool valid() const {
 		      return _nodes.attached();
@@ -1211,199 +1214,200 @@
 		      } else {
 		        arc.id = -1;
 		        dir = true;
+		      }
+		    }
 		    void nextInc(Edge &arc, bool& dir) const {
 		      int de = (arcs[(arc.id * 2) | (dir ? 1 : 0)].next_out);
 		      if (de != -1 ) {
 		        arc.id = de / 2;
 		        dir = ((de & 1) == 1);
 		      } else {
 		        arc.id = -1;
 		        dir = true;
+		      }
+		    }
 		    static bool direction(Arc arc) {
 		      return (arc.id & 1) == 1;
+		    }
 		    static Arc direct(Edge edge, bool dir) {
 		      return Arc(edge.id * 2 + (dir ? 1 : 0));
+		    }
 		    int id(Node node) const { return _graph->id(node); }
 		    static int id(Arc arc) { return arc.id; }
 		    static int id(Edge arc) { return arc.id; }
 		    Node nodeFromId(int id) const { return _graph->nodeFromId(id); }
 		    static Arc arcFromId(int id) { return Arc(id); }
 		    static Edge edgeFromId(int id) { return Edge(id);}
 		    int maxNodeId() const { return _graph->maxNodeId(); };
 		    int maxArcId() const { return arcs.size() - 1; }
 		    int maxEdgeId() const { return arcs.size() / 2 - 1; }
 		    Node source(Arc e) const { return arcs[e.id ^ 1].target; }
 		    Node target(Arc e) const { return arcs[e.id].target; }
 		    Node u(Edge e) const { return arcs[2 * e.id].target; }
 		    Node v(Edge e) const { return arcs[2 * e.id + 1].target; }
 		    typedef typename ItemSetTraits<GR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const {
 		      return _graph->notifier(Node());
+		    }
 		    template <typename V>
 		    class NodeMap : public GR::template NodeMap<V> {
 		      typedef typename GR::template NodeMap<V> Parent;
 		    public:
 		      explicit NodeMap(const SmartEdgeSetBase<GR>& arcset)
 		        : Parent(*arcset._graph) { }
 		      NodeMap(const SmartEdgeSetBase<GR>& arcset, const V& value)
 		        : Parent(*arcset._graph, value) { }
 		      NodeMap& operator=(const NodeMap& cmap) {
 		        return operator=<NodeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  };
 		  /// \ingroup graphs
 		  ///
 		  /// \brief Graph using a node set of another digraph or graph and an
 		  /// own edge set.
 		  ///
 		  /// This structure can be used to establish another graph over a
 		  /// node set of an existing one. This class uses the same Node type
 		  /// as the underlying graph, and each valid node of the original
 		  /// graph is valid in this arc set, therefore the node objects of
 		  /// the original graph can be used directly with this class. The
 		  /// node handling functions (id handling, observing, and iterators)
 		  /// works equivalently as in the original graph.
 		  ///
 		  /// \param GR The type of the graph which shares its node set
 		  /// with this class. Its interface must conform to the
 		  /// \ref concepts::Digraph "Digraph" or \ref concepts::Graph "Graph"
 		  ///  concept.
 		  ///
 		  /// This implementation is slightly faster than the \c ListEdgeSet,
 		  /// because it uses continuous storage for edges and it uses just
 		  /// single-linked lists for enumerate incident edges. Therefore the
 		  /// edges cannot be erased from the edge sets.
 		  ///
 		  /// This class fully conforms to the \ref concepts::Graph "Graph"
 		  /// concept.
 		  /// It provides only linear time counting for nodes, edges and arcs.
 		  ///
 		  /// \warning If a node is erased from the underlying graph and this
 		  /// node is incident to one edge in the edge set, then the edge set
 		  /// is invalidated, and it cannot be used anymore. The validity can
 		  /// be checked with the \c valid() member function.
 		  ///
 		  /// This class fully conforms to the \ref concepts::Graph
 		  /// "Graph" concept.
 		  template <typename GR>
 		  class SmartEdgeSet : public EdgeSetExtender<SmartEdgeSetBase<GR> > {
 		    typedef EdgeSetExtender<SmartEdgeSetBase<GR> > Parent;
 		  public:
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    typedef typename Parent::Edge Edge;
 		  protected:
 		    typedef typename Parent::NodesImplBase NodesImplBase;
 		    void eraseNode(const Node& node) {
 		      if (typename Parent::IncEdgeIt(*this, node) == INVALID) {
 		        return;
+		      }
 		      throw typename NodesImplBase::Notifier::ImmediateDetach();
+		    }
 		    void clearNodes() {
 		      Parent::clear();
+		    }
 		    class NodesImpl : public NodesImplBase {
 		      typedef NodesImplBase Parent;
 		    public:
 		      NodesImpl(const GR& graph, SmartEdgeSet& arcset)
 		        : Parent(graph), _arcset(arcset) {}
 		      virtual ~NodesImpl() {}
 		      bool attached() const {
 		        return Parent::attached();
+		      }
 		    protected:
 		      virtual void erase(const Node& node) {
 		        try {
 		          _arcset.eraseNode(node);
 		          Parent::erase(node);
 		        } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) {
 		          Parent::clear();
 		          throw;
+		        }
+		      }
 		      virtual void erase(const std::vector<Node>& nodes) {
 		        try {
 		          for (int i = 0; i < int(nodes.size()); ++i) {
 		            _arcset.eraseNode(nodes[i]);
+		          }
 		          Parent::erase(nodes);
 		        } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) {
 		          Parent::clear();
 		          throw;
+		        }
+		      }
 		      virtual void clear() {
 		        _arcset.clearNodes();
 		        Parent::clear();
+		      }
 		    private:
 		      SmartEdgeSet& _arcset;
 		    };
 		    NodesImpl _nodes;
 		  public:
 		    /// \brief Constructor of the EdgeSet.
 		    ///
 		    /// Constructor of the EdgeSet.
 		    SmartEdgeSet(const GR& graph) : _nodes(graph, *this) {
 		      Parent::initalize(graph, _nodes);
+		    }
 		    /// \brief Add a new edge to the graph.
 		    ///
 		    /// Add a new edge to the graph with node \c u
 		    /// and node \c v endpoints.
 		    /// \return The new edge.
 		    Edge addEdge(const Node& u, const Node& v) {
 		      return Parent::addEdge(u, v);
+		    }
 		    /// \brief Validity check
 		    ///
 		    /// This functions gives back false if the EdgeSet is
 		    /// invalidated. It occurs when a node in the underlying graph is
 		    /// erased and it is not isolated in the EdgeSet.
 		    bool valid() const {
 		      return _nodes.attached();

lemon/full_graph.h

Show inline comments

@@ -69,242 +69,246 @@
 		    static int id(Node node) { return node._id; }
 		    static int id(Arc arc) { return arc._id; }
 		    static Node nodeFromId(int id) { return Node(id);}
 		    static Arc arcFromId(int id) { return Arc(id);}
 		    typedef True FindArcTag;
 		    Arc findArc(Node s, Node t, Arc prev = INVALID) const {
 		      return prev == INVALID ? arc(s, t) : INVALID;
+		    }
 		    class Node {
 		      friend class FullDigraphBase;
 		    protected:
 		      int _id;
 		      Node(int id) : _id(id) {}
 		    public:
 		      Node() {}
 		      Node (Invalid) : _id(-1) {}
 		      bool operator==(const Node node) const {return _id == node._id;}
 		      bool operator!=(const Node node) const {return _id != node._id;}
 		      bool operator<(const Node node) const {return _id < node._id;}
 		    };
 		    class Arc {
 		      friend class FullDigraphBase;
 		    protected:
 		      int _id;  // _node_num * source + target;
 		      Arc(int id) : _id(id) {}
 		    public:
 		      Arc() { }
 		      Arc (Invalid) { _id = -1; }
 		      bool operator==(const Arc arc) const {return _id == arc._id;}
 		      bool operator!=(const Arc arc) const {return _id != arc._id;}
 		      bool operator<(const Arc arc) const {return _id < arc._id;}
 		    };
 		    void first(Node& node) const {
 		      node._id = _node_num - 1;
+		    }
 		    static void next(Node& node) {
 		      --node._id;
+		    }
 		    void first(Arc& arc) const {
 		      arc._id = _arc_num - 1;
+		    }
 		    static void next(Arc& arc) {
 		      --arc._id;
+		    }
 		    void firstOut(Arc& arc, const Node& node) const {
 		      arc._id = (node._id + 1) * _node_num - 1;
+		    }
 		    void nextOut(Arc& arc) const {
 		      if (arc._id % _node_num == 0) arc._id = 0;
 		      --arc._id;
+		    }
 		    void firstIn(Arc& arc, const Node& node) const {
 		      arc._id = _arc_num + node._id - _node_num;
+		    }
 		    void nextIn(Arc& arc) const {
 		      arc._id -= _node_num;
 		      if (arc._id < 0) arc._id = -1;
+		    }
 		  };
 		  typedef DigraphExtender<FullDigraphBase> ExtendedFullDigraphBase;
 		  /// \ingroup graphs
 		  ///
 		  /// \brief A directed full graph class.
 		  ///
 		  /// FullDigraph is a simple and fast implmenetation of directed full
 		  /// (complete) graphs. It contains an arc from each node to each node
 		  /// (including a loop for each node), therefore the number of arcs
 		  /// is the square of the number of nodes.
 		  /// This class is completely static and it needs constant memory space.
 		  /// Thus you can neither add nor delete nodes or arcs, however
 		  /// the structure can be resized using resize().
 		  ///
 		  /// This type fully conforms to the \ref concepts::Digraph "Digraph concept".
 		  /// Most of its member functions and nested classes are documented
 		  /// only in the concept class.
 		  ///
 		  /// This class provides constant time counting for nodes and arcs.
 		  ///
 		  /// \note FullDigraph and FullGraph classes are very similar,
 		  /// but there are two differences. While this class conforms only
 		  /// to the \ref concepts::Digraph "Digraph" concept, FullGraph
 		  /// conforms to the \ref concepts::Graph "Graph" concept,
 		  /// moreover FullGraph does not contain a loop for each
 		  /// node as this class does.
 		  ///
 		  /// \sa FullGraph
 		  class FullDigraph : public ExtendedFullDigraphBase {
 		    typedef ExtendedFullDigraphBase Parent;
 		  public:
 		    /// \brief Default constructor.
 		    ///
 		    /// Default constructor. The number of nodes and arcs will be zero.
 		    FullDigraph() { construct(0); }
 		    /// \brief Constructor
 		    ///
 		    /// Constructor.
 		    /// \param n The number of the nodes.
 		    FullDigraph(int n) { construct(n); }
 		    /// \brief Resizes the digraph
 		    ///
 		    /// This function resizes the digraph. It fully destroys and
 		    /// rebuilds the structure, therefore the maps of the digraph will be
 		    /// reallocated automatically and the previous values will be lost.
 		    void resize(int n) {
 		      Parent::notifier(Arc()).clear();
 		      Parent::notifier(Node()).clear();
 		      construct(n);
 		      Parent::notifier(Node()).build();
 		      Parent::notifier(Arc()).build();
+		    }
 		    /// \brief Returns the node with the given index.
 		    ///
 		    /// Returns the node with the given index. Since this structure is
 		    /// completely static, the nodes can be indexed with integers from
 		    /// the range <tt>[0..nodeNum()-1]</tt>.
 		    /// The index of a node is the same as its ID.
 		    /// \sa index()
 		    Node operator()(int ix) const { return Parent::operator()(ix); }
 		    /// \brief Returns the index of the given node.
 		    ///
 		    /// Returns the index of the given node. Since this structure is
 		    /// completely static, the nodes can be indexed with integers from
 		    /// the range <tt>[0..nodeNum()-1]</tt>.
 		    /// The index of a node is the same as its ID.
 		    /// \sa operator()()
 		    static int index(const Node& node) { return Parent::index(node); }
 		    /// \brief Returns the arc connecting the given nodes.
 		    ///
 		    /// Returns the arc connecting the given nodes.
 		    Arc arc(Node u, Node v) const {
 		      return Parent::arc(u, v);
+		    }
 		    /// \brief Number of nodes.
 		    int nodeNum() const { return Parent::nodeNum(); }
 		    /// \brief Number of arcs.
 		    int arcNum() const { return Parent::arcNum(); }
 		  };
 		  class FullGraphBase {
 		  public:
 		    typedef FullGraphBase Graph;
 		    class Node;
 		    class Arc;
 		    class Edge;
 		  protected:
 		    int _node_num;
 		    int _edge_num;
 		    FullGraphBase() {}
 		    void construct(int n) { _node_num = n; _edge_num = n * (n - 1) / 2; }
 		    int _uid(int e) const {
 		      int u = e / _node_num;
 		      int v = e % _node_num;
 		      return u < v ? u : _node_num - 2 - u;
+		    }
 		    int _vid(int e) const {
 		      int u = e / _node_num;
 		      int v = e % _node_num;
 		      return u < v ? v : _node_num - 1 - v;
+		    }
 		    void _uvid(int e, int& u, int& v) const {
 		      u = e / _node_num;
 		      v = e % _node_num;
 		      if  (u >= v) {
 		        u = _node_num - 2 - u;
 		        v = _node_num - 1 - v;
+		      }
+		    }
 		    void _stid(int a, int& s, int& t) const {
 		      if ((a & 1) == 1) {
 		        _uvid(a >> 1, s, t);
 		      } else {
 		        _uvid(a >> 1, t, s);
+		      }
+		    }
 		    int _eid(int u, int v) const {
 		      if (u < (_node_num - 1) / 2) {
 		        return u * _node_num + v;
 		      } else {
 		        return (_node_num - 1 - u) * _node_num - v - 1;
+		      }
+		    }
 		  public:
 		    Node operator()(int ix) const { return Node(ix); }
 		    static int index(const Node& node) { return node._id; }
 		    Edge edge(const Node& u, const Node& v) const {
 		      if (u._id < v._id) {
 		        return Edge(_eid(u._id, v._id));
 		      } else if (u._id != v._id) {
 		        return Edge(_eid(v._id, u._id));
 		      } else {
 		        return INVALID;
+		      }
+		    }
 		    Arc arc(const Node& s, const Node& t) const {
 		      if (s._id < t._id) {
 		        return Arc((_eid(s._id, t._id) << 1) | 1);
 		      } else if (s._id != t._id) {
 		        return Arc(_eid(t._id, s._id) << 1);
 		      } else {
 		        return INVALID;
+		      }
+		    }
@@ -442,179 +446,183 @@
+		    }
 		    void firstOut(Arc& arc, const Node& node) const {
 		      int s = node._id, t = _node_num - 1;
 		      if (s < t) {
 		        arc._id = (_eid(s, t) << 1) | 1;
 		      } else {
 		        --t;
 		        arc._id = (t != -1 ? (_eid(t, s) << 1) : -1);
+		      }
+		    }
 		    void nextOut(Arc& arc) const {
 		      int s, t;
 		      _stid(arc._id, s, t);
 		      --t;
 		      if (s < t) {
 		        arc._id = (_eid(s, t) << 1) | 1;
 		      } else {
 		        if (s == t) --t;
 		        arc._id = (t != -1 ? (_eid(t, s) << 1) : -1);
+		      }
+		    }
 		    void firstIn(Arc& arc, const Node& node) const {
 		      int s = _node_num - 1, t = node._id;
 		      if (s > t) {
 		        arc._id = (_eid(t, s) << 1);
 		      } else {
 		        --s;
 		        arc._id = (s != -1 ? (_eid(s, t) << 1) | 1 : -1);
+		      }
+		    }
 		    void nextIn(Arc& arc) const {
 		      int s, t;
 		      _stid(arc._id, s, t);
 		      --s;
 		      if (s > t) {
 		        arc._id = (_eid(t, s) << 1);
 		      } else {
 		        if (s == t) --s;
 		        arc._id = (s != -1 ? (_eid(s, t) << 1) | 1 : -1);
+		      }
+		    }
 		    void firstInc(Edge& edge, bool& dir, const Node& node) const {
 		      int u = node._id, v = _node_num - 1;
 		      if (u < v) {
 		        edge._id = _eid(u, v);
 		        dir = true;
 		      } else {
 		        --v;
 		        edge._id = (v != -1 ? _eid(v, u) : -1);
 		        dir = false;
+		      }
+		    }
 		    void nextInc(Edge& edge, bool& dir) const {
 		      int u, v;
 		      if (dir) {
 		        _uvid(edge._id, u, v);
 		        --v;
 		        if (u < v) {
 		          edge._id = _eid(u, v);
 		        } else {
 		          --v;
 		          edge._id = (v != -1 ? _eid(v, u) : -1);
 		          dir = false;
+		        }
 		      } else {
 		        _uvid(edge._id, v, u);
 		        --v;
 		        edge._id = (v != -1 ? _eid(v, u) : -1);
+		      }
+		    }
 		  };
 		  typedef GraphExtender<FullGraphBase> ExtendedFullGraphBase;
 		  /// \ingroup graphs
 		  ///
 		  /// \brief An undirected full graph class.
 		  ///
 		  /// FullGraph is a simple and fast implmenetation of undirected full
 		  /// (complete) graphs. It contains an edge between every distinct pair
 		  /// of nodes, therefore the number of edges is <tt>n(n-1)/2</tt>.
 		  /// This class is completely static and it needs constant memory space.
 		  /// Thus you can neither add nor delete nodes or edges, however
 		  /// the structure can be resized using resize().
 		  ///
 		  /// This type fully conforms to the \ref concepts::Graph "Graph concept".
 		  /// Most of its member functions and nested classes are documented
 		  /// only in the concept class.
 		  ///
 		  /// This class provides constant time counting for nodes, edges and arcs.
 		  ///
 		  /// \note FullDigraph and FullGraph classes are very similar,
 		  /// but there are two differences. While FullDigraph
 		  /// conforms only to the \ref concepts::Digraph "Digraph" concept,
 		  /// this class conforms to the \ref concepts::Graph "Graph" concept,
 		  /// moreover this class does not contain a loop for each
 		  /// node as FullDigraph does.
 		  ///
 		  /// \sa FullDigraph
 		  class FullGraph : public ExtendedFullGraphBase {
 		    typedef ExtendedFullGraphBase Parent;
 		  public:
 		    /// \brief Default constructor.
 		    ///
 		    /// Default constructor. The number of nodes and edges will be zero.
 		    FullGraph() { construct(0); }
 		    /// \brief Constructor
 		    ///
 		    /// Constructor.
 		    /// \param n The number of the nodes.
 		    FullGraph(int n) { construct(n); }
 		    /// \brief Resizes the graph
 		    ///
 		    /// This function resizes the graph. It fully destroys and
 		    /// rebuilds the structure, therefore the maps of the graph will be
 		    /// reallocated automatically and the previous values will be lost.
 		    void resize(int n) {
 		      Parent::notifier(Arc()).clear();
 		      Parent::notifier(Edge()).clear();
 		      Parent::notifier(Node()).clear();
 		      construct(n);
 		      Parent::notifier(Node()).build();
 		      Parent::notifier(Edge()).build();
 		      Parent::notifier(Arc()).build();
+		    }
 		    /// \brief Returns the node with the given index.
 		    ///
 		    /// Returns the node with the given index. Since this structure is
 		    /// completely static, the nodes can be indexed with integers from
 		    /// the range <tt>[0..nodeNum()-1]</tt>.
 		    /// The index of a node is the same as its ID.
 		    /// \sa index()
 		    Node operator()(int ix) const { return Parent::operator()(ix); }
 		    /// \brief Returns the index of the given node.
 		    ///
 		    /// Returns the index of the given node. Since this structure is
 		    /// completely static, the nodes can be indexed with integers from
 		    /// the range <tt>[0..nodeNum()-1]</tt>.
 		    /// The index of a node is the same as its ID.
 		    /// \sa operator()()
 		    static int index(const Node& node) { return Parent::index(node); }
 		    /// \brief Returns the arc connecting the given nodes.
 		    ///
 		    /// Returns the arc connecting the given nodes.
 		    Arc arc(Node s, Node t) const {
 		      return Parent::arc(s, t);
+		    }
 		    /// \brief Returns the edge connecting the given nodes.
 		    ///
 		    /// Returns the edge connecting the given nodes.
 		    Edge edge(Node u, Node v) const {
 		      return Parent::edge(u, v);
+		    }
 		    /// \brief Number of nodes.
 		    int nodeNum() const { return Parent::nodeNum(); }
 		    /// \brief Number of arcs.
 		    int arcNum() const { return Parent::arcNum(); }
 		    /// \brief Number of edges.
 		    int edgeNum() const { return Parent::edgeNum(); }
 		  };
 		} //namespace lemon
 		#endif //LEMON_FULL_GRAPH_H

lemon/grid_graph.h

Show inline comments

@@ -410,192 +410,194 @@
 		          return;
+		        }
 		      } else {
 		        if (nid >= _edge_limit) {
 		          nid = (nid - _edge_limit) % (_width - 1) +
 		            (nid - _edge_limit) / (_width - 1) * _width + 1;
 		          if (nid >= _width) {
 		            edge._id = nid - _width;
 		            return;
+		          }
+		        }
+		      }
 		      edge._id = -1;
 		      dir = true;
+		    }
 		    Arc right(Node n) const {
 		      if (n._id % _width < _width - 1) {
 		        return Arc(((_edge_limit + n._id % _width +
 		                    (n._id / _width) * (_width - 1)) << 1) | 1);
 		      } else {
 		        return INVALID;
+		      }
+		    }
 		    Arc left(Node n) const {
 		      if (n._id % _width > 0) {
 		        return Arc((_edge_limit + n._id % _width +
 		                     (n._id / _width) * (_width - 1) - 1) << 1);
 		      } else {
 		        return INVALID;
+		      }
+		    }
 		    Arc up(Node n) const {
 		      if (n._id < _edge_limit) {
 		        return Arc((n._id << 1) | 1);
 		      } else {
 		        return INVALID;
+		      }
+		    }
 		    Arc down(Node n) const {
 		      if (n._id >= _width) {
 		        return Arc((n._id - _width) << 1);
 		      } else {
 		        return INVALID;
+		      }
+		    }
 		  private:
 		    int _width, _height;
 		    int _node_num, _edge_num;
 		    int _edge_limit;
 		  };
 		  typedef GraphExtender<GridGraphBase> ExtendedGridGraphBase;
 		  /// \ingroup graphs
 		  ///
 		  /// \brief Grid graph class
 		  ///
 		  /// GridGraph implements a special graph type. The nodes of the
 		  /// graph can be indexed by two integer values \c (i,j) where \c i is
 		  /// in the range <tt>[0..width()-1]</tt> and j is in the range
 		  /// <tt>[0..height()-1]</tt>. Two nodes are connected in the graph if
 		  /// the indices differ exactly on one position and the difference is
 		  /// also exactly one. The nodes of the graph can be obtained by position
 		  /// using the \c operator()() function and the indices of the nodes can
 		  /// be obtained using \c pos(), \c col() and \c row() members. The outgoing
 		  /// arcs can be retrieved with the \c right(), \c up(), \c left()
 		  /// and \c down() functions, where the bottom-left corner is the
 		  /// origin.
 		  ///
 		  /// This class is completely static and it needs constant memory space.
 		  /// Thus you can neither add nor delete nodes or edges, however
 		  /// the structure can be resized using resize().
 		  ///
 		  /// \image html grid_graph.png
 		  /// \image latex grid_graph.eps "Grid graph" width=\textwidth
 		  ///
 		  /// A short example about the basic usage:
 		  ///\code
 		  /// GridGraph graph(rows, cols);
 		  /// GridGraph::NodeMap<int> val(graph);
 		  /// for (int i = 0; i < graph.width(); ++i) {
 		  ///   for (int j = 0; j < graph.height(); ++j) {
 		  ///     val[graph(i, j)] = i + j;
 		  ///   }
 		  /// }
 		  ///\endcode
 		  ///
 		  /// This type fully conforms to the \ref concepts::Graph "Graph concept".
 		  /// Most of its member functions and nested classes are documented
 		  /// only in the concept class.
 		  ///
 		  /// This class provides constant time counting for nodes, edges and arcs.
 		  class GridGraph : public ExtendedGridGraphBase {
 		    typedef ExtendedGridGraphBase Parent;
 		  public:
 		    /// \brief Map to get the indices of the nodes as \ref dim2::Point
 		    /// "dim2::Point<int>".
 		    ///
 		    /// Map to get the indices of the nodes as \ref dim2::Point
 		    /// "dim2::Point<int>".
 		    class IndexMap {
 		    public:
 		      /// \brief The key type of the map
 		      typedef GridGraph::Node Key;
 		      /// \brief The value type of the map
 		      typedef dim2::Point<int> Value;
 		      /// \brief Constructor
 		      IndexMap(const GridGraph& graph) : _graph(graph) {}
 		      /// \brief The subscript operator
 		      Value operator[](Key key) const {
 		        return _graph.pos(key);
+		      }
 		    private:
 		      const GridGraph& _graph;
 		    };
 		    /// \brief Map to get the column of the nodes.
 		    ///
 		    /// Map to get the column of the nodes.
 		    class ColMap {
 		    public:
 		      /// \brief The key type of the map
 		      typedef GridGraph::Node Key;
 		      /// \brief The value type of the map
 		      typedef int Value;
 		      /// \brief Constructor
 		      ColMap(const GridGraph& graph) : _graph(graph) {}
 		      /// \brief The subscript operator
 		      Value operator[](Key key) const {
 		        return _graph.col(key);
+		      }
 		    private:
 		      const GridGraph& _graph;
 		    };
 		    /// \brief Map to get the row of the nodes.
 		    ///
 		    /// Map to get the row of the nodes.
 		    class RowMap {
 		    public:
 		      /// \brief The key type of the map
 		      typedef GridGraph::Node Key;
 		      /// \brief The value type of the map
 		      typedef int Value;
 		      /// \brief Constructor
 		      RowMap(const GridGraph& graph) : _graph(graph) {}
 		      /// \brief The subscript operator
 		      Value operator[](Key key) const {
 		        return _graph.row(key);
+		      }
 		    private:
 		      const GridGraph& _graph;
 		    };
 		    /// \brief Constructor
 		    ///
 		    /// Construct a grid graph with the given size.
 		    GridGraph(int width, int height) { construct(width, height); }
 		    /// \brief Resizes the graph
 		    ///
 		    /// This function resizes the graph. It fully destroys and
 		    /// rebuilds the structure, therefore the maps of the graph will be
 		    /// reallocated automatically and the previous values will be lost.
 		    void resize(int width, int height) {
 		      Parent::notifier(Arc()).clear();
 		      Parent::notifier(Edge()).clear();
 		      Parent::notifier(Node()).clear();
 		      construct(width, height);
 		      Parent::notifier(Node()).build();
 		      Parent::notifier(Edge()).build();
 		      Parent::notifier(Arc()).build();
+		    }
 		    /// \brief The node on the given position.
 		    ///
 		    /// Gives back the node on the given position.

lemon/hypercube_graph.h

Show inline comments

@@ -201,192 +201,194 @@
 		          ((n._id >> (k+1)) << k) | (n._id & ((1 << k) - 1));
 		        dir = ((n._id >> k) & 1) == 0;
 		      } else {
 		        edge._id = -1;
 		        dir = true;
+		      }
+		    }
 		    void firstOut(Arc& arc, const Node& node) const {
 		      arc._id = ((node._id >> 1) << 1) | (~node._id & 1);
+		    }
 		    void nextOut(Arc& arc) const {
 		      Node n = (arc._id & 1) == 1 ? u(arc) : v(arc);
 		      int k = (arc._id >> _dim) + 1;
 		      if (k < _dim) {
 		        arc._id = (k << (_dim-1)) |
 		          ((n._id >> (k+1)) << k) | (n._id & ((1 << k) - 1));
 		        arc._id = (arc._id << 1) | (~(n._id >> k) & 1);
 		      } else {
 		        arc._id = -1;
+		      }
+		    }
 		    void firstIn(Arc& arc, const Node& node) const {
 		      arc._id = ((node._id >> 1) << 1) | (node._id & 1);
+		    }
 		    void nextIn(Arc& arc) const {
 		      Node n = (arc._id & 1) == 1 ? v(arc) : u(arc);
 		      int k = (arc._id >> _dim) + 1;
 		      if (k < _dim) {
 		        arc._id = (k << (_dim-1)) |
 		          ((n._id >> (k+1)) << k) | (n._id & ((1 << k) - 1));
 		        arc._id = (arc._id << 1) | ((n._id >> k) & 1);
 		      } else {
 		        arc._id = -1;
+		      }
+		    }
 		    static bool direction(Arc arc) {
 		      return (arc._id & 1) == 1;
+		    }
 		    static Arc direct(Edge edge, bool dir) {
 		      return Arc((edge._id << 1) | (dir ? 1 : 0));
+		    }
 		    int dimension() const {
 		      return _dim;
+		    }
 		    bool projection(Node node, int n) const {
 		      return static_cast<bool>(node._id & (1 << n));
+		    }
 		    int dimension(Edge edge) const {
 		      return edge._id >> (_dim-1);
+		    }
 		    int dimension(Arc arc) const {
 		      return arc._id >> _dim;
+		    }
 		    static int index(Node node) {
 		      return node._id;
+		    }
 		    Node operator()(int ix) const {
 		      return Node(ix);
+		    }
 		  private:
 		    int _dim;
 		    int _node_num, _edge_num;
 		  };
 		  typedef GraphExtender<HypercubeGraphBase> ExtendedHypercubeGraphBase;
 		  /// \ingroup graphs
 		  ///
 		  /// \brief Hypercube graph class
 		  ///
 		  /// HypercubeGraph implements a special graph type. The nodes of the
 		  /// graph are indexed with integers having at most \c dim binary digits.
 		  /// Two nodes are connected in the graph if and only if their indices
 		  /// differ only on one position in the binary form.
 		  /// This class is completely static and it needs constant memory space.
 		  /// Thus you can neither add nor delete nodes or edges, however
 		  /// the structure can be resized using resize().
 		  ///
 		  /// This type fully conforms to the \ref concepts::Graph "Graph concept".
 		  /// Most of its member functions and nested classes are documented
 		  /// only in the concept class.
 		  ///
 		  /// This class provides constant time counting for nodes, edges and arcs.
 		  ///
 		  /// \note The type of the indices is chosen to \c int for efficiency
 		  /// reasons. Thus the maximum dimension of this implementation is 26
 		  /// (assuming that the size of \c int is 32 bit).
 		  class HypercubeGraph : public ExtendedHypercubeGraphBase {
 		    typedef ExtendedHypercubeGraphBase Parent;
 		  public:
 		    /// \brief Constructs a hypercube graph with \c dim dimensions.
 		    ///
 		    /// Constructs a hypercube graph with \c dim dimensions.
 		    HypercubeGraph(int dim) { construct(dim); }
 		    /// \brief Resizes the graph
 		    ///
 		    /// This function resizes the graph. It fully destroys and
 		    /// rebuilds the structure, therefore the maps of the graph will be
 		    /// reallocated automatically and the previous values will be lost.
 		    void resize(int dim) {
 		      Parent::notifier(Arc()).clear();
 		      Parent::notifier(Edge()).clear();
 		      Parent::notifier(Node()).clear();
 		      construct(dim);
 		      Parent::notifier(Node()).build();
 		      Parent::notifier(Edge()).build();
 		      Parent::notifier(Arc()).build();
+		    }
 		    /// \brief The number of dimensions.
 		    ///
 		    /// Gives back the number of dimensions.
 		    int dimension() const {
 		      return Parent::dimension();
+		    }
 		    /// \brief Returns \c true if the n'th bit of the node is one.
 		    ///
 		    /// Returns \c true if the n'th bit of the node is one.
 		    bool projection(Node node, int n) const {
 		      return Parent::projection(node, n);
+		    }
 		    /// \brief The dimension id of an edge.
 		    ///
 		    /// Gives back the dimension id of the given edge.
 		    /// It is in the range <tt>[0..dim-1]</tt>.
 		    int dimension(Edge edge) const {
 		      return Parent::dimension(edge);
+		    }
 		    /// \brief The dimension id of an arc.
 		    ///
 		    /// Gives back the dimension id of the given arc.
 		    /// It is in the range <tt>[0..dim-1]</tt>.
 		    int dimension(Arc arc) const {
 		      return Parent::dimension(arc);
+		    }
 		    /// \brief The index of a node.
 		    ///
 		    /// Gives back the index of the given node.
 		    /// The lower bits of the integer describes the node.
 		    static int index(Node node) {
 		      return Parent::index(node);
+		    }
 		    /// \brief Gives back a node by its index.
 		    ///
 		    /// Gives back a node by its index.
 		    Node operator()(int ix) const {
 		      return Parent::operator()(ix);
+		    }
 		    /// \brief Number of nodes.
 		    int nodeNum() const { return Parent::nodeNum(); }
 		    /// \brief Number of edges.
 		    int edgeNum() const { return Parent::edgeNum(); }
 		    /// \brief Number of arcs.
 		    int arcNum() const { return Parent::arcNum(); }
 		    /// \brief Linear combination map.
 		    ///
 		    /// This map makes possible to give back a linear combination
 		    /// for each node. It works like the \c std::accumulate function,
 		    /// so it accumulates the \c bf binary function with the \c fv first
 		    /// value. The map accumulates only on that positions (dimensions)
 		    /// where the index of the node is one. The values that have to be
 		    /// accumulated should be given by the \c begin and \c end iterators
 		    /// and the length of this range should be equal to the dimension
 		    /// number of the graph.
 		    ///
 		    ///\code
 		    /// const int DIM = 3;
 		    /// HypercubeGraph graph(DIM);
 		    /// dim2::Point<double> base[DIM];
 		    /// for (int k = 0; k < DIM; ++k) {

lemon/list_graph.h

Show inline comments

@@ -231,378 +231,388 @@
 		        nodes[nodes[n].prev].next = nodes[n].next;
 		      } else {
 		        first_node = nodes[n].next;
+		      }
 		      nodes[n].next = first_free_node;
 		      first_free_node = n;
 		      nodes[n].prev = -2;
+		    }
 		    void erase(const Arc& arc) {
 		      int n = arc.id;
 		      if(arcs[n].next_in!=-1) {
 		        arcs[arcs[n].next_in].prev_in = arcs[n].prev_in;
+		      }
 		      if(arcs[n].prev_in!=-1) {
 		        arcs[arcs[n].prev_in].next_in = arcs[n].next_in;
 		      } else {
 		        nodes[arcs[n].target].first_in = arcs[n].next_in;
+		      }
 		      if(arcs[n].next_out!=-1) {
 		        arcs[arcs[n].next_out].prev_out = arcs[n].prev_out;
+		      }
 		      if(arcs[n].prev_out!=-1) {
 		        arcs[arcs[n].prev_out].next_out = arcs[n].next_out;
 		      } else {
 		        nodes[arcs[n].source].first_out = arcs[n].next_out;
+		      }
 		      arcs[n].next_in = first_free_arc;
 		      first_free_arc = n;
 		      arcs[n].prev_in = -2;
+		    }
 		    void clear() {
 		      arcs.clear();
 		      nodes.clear();
 		      first_node = first_free_node = first_free_arc = -1;
+		    }
 		  protected:
 		    void changeTarget(Arc e, Node n)
+		    {
 		      if(arcs[e.id].next_in != -1)
 		        arcs[arcs[e.id].next_in].prev_in = arcs[e.id].prev_in;
 		      if(arcs[e.id].prev_in != -1)
 		        arcs[arcs[e.id].prev_in].next_in = arcs[e.id].next_in;
 		      else nodes[arcs[e.id].target].first_in = arcs[e.id].next_in;
 		      if (nodes[n.id].first_in != -1) {
 		        arcs[nodes[n.id].first_in].prev_in = e.id;
+		      }
 		      arcs[e.id].target = n.id;
 		      arcs[e.id].prev_in = -1;
 		      arcs[e.id].next_in = nodes[n.id].first_in;
 		      nodes[n.id].first_in = e.id;
+		    }
 		    void changeSource(Arc e, Node n)
+		    {
 		      if(arcs[e.id].next_out != -1)
 		        arcs[arcs[e.id].next_out].prev_out = arcs[e.id].prev_out;
 		      if(arcs[e.id].prev_out != -1)
 		        arcs[arcs[e.id].prev_out].next_out = arcs[e.id].next_out;
 		      else nodes[arcs[e.id].source].first_out = arcs[e.id].next_out;
 		      if (nodes[n.id].first_out != -1) {
 		        arcs[nodes[n.id].first_out].prev_out = e.id;
+		      }
 		      arcs[e.id].source = n.id;
 		      arcs[e.id].prev_out = -1;
 		      arcs[e.id].next_out = nodes[n.id].first_out;
 		      nodes[n.id].first_out = e.id;
+		    }
 		  };
 		  typedef DigraphExtender<ListDigraphBase> ExtendedListDigraphBase;
 		  /// \addtogroup graphs
 		  /// @{
 		  ///A general directed graph structure.
 		  ///\ref ListDigraph is a versatile and fast directed graph
 		  ///implementation based on linked lists that are stored in
 		  ///\c std::vector structures.
 		  ///
 		  ///This type fully conforms to the \ref concepts::Digraph "Digraph concept"
 		  ///and it also provides several useful additional functionalities.
 		  ///Most of its member functions and nested classes are documented
 		  ///only in the concept class.
 		  ///
 		  ///This class provides only linear time counting for nodes and arcs.
 		  ///
 		  ///\sa concepts::Digraph
 		  ///\sa ListGraph
 		  class ListDigraph : public ExtendedListDigraphBase {
 		    typedef ExtendedListDigraphBase Parent;
 		  private:
 		    /// Digraphs are \e not copy constructible. Use DigraphCopy instead.
 		    ListDigraph(const ListDigraph &) :ExtendedListDigraphBase() {};
 		    /// \brief Assignment of a digraph to another one is \e not allowed.
 		    /// Use DigraphCopy instead.
 		    void operator=(const ListDigraph &) {}
 		  public:
 		    /// Constructor
 		    /// Constructor.
 		    ///
 		    ListDigraph() {}
 		    ///Add a new node to the digraph.
 		    ///This function adds a new node to the digraph.
 		    ///\return The new node.
 		    Node addNode() { return Parent::addNode(); }
 		    ///Add a new arc to the digraph.
 		    ///This function adds a new arc to the digraph with source node \c s
 		    ///and target node \c t.
 		    ///\return The new arc.
 		    Arc addArc(Node s, Node t) {
 		      return Parent::addArc(s, t);
+		    }
 		    ///\brief Erase a node from the digraph.
 		    ///
-		    ///This function erases the given node from the digraph.
+		    ///This function erases the given node along with its outgoing and
 		    ///incoming arcs from the digraph.
 		    ///
 		    ///\note All iterators referencing the removed node or the connected
 		    ///arcs are invalidated, of course.
 		    void erase(Node n) { Parent::erase(n); }
 		    ///\brief Erase an arc from the digraph.
 		    ///
 		    ///This function erases the given arc from the digraph.
 		    ///
 		    ///\note All iterators referencing the removed arc are invalidated,
 		    ///of course.
 		    void erase(Arc a) { Parent::erase(a); }
 		    /// Node validity check
 		    /// This function gives back \c true if the given node is valid,
 		    /// i.e. it is a real node of the digraph.
 		    ///
 		    /// \warning A removed node could become valid again if new nodes are
 		    /// added to the digraph.
 		    bool valid(Node n) const { return Parent::valid(n); }
 		    /// Arc validity check
 		    /// This function gives back \c true if the given arc is valid,
 		    /// i.e. it is a real arc of the digraph.
 		    ///
 		    /// \warning A removed arc could become valid again if new arcs are
 		    /// added to the digraph.
 		    bool valid(Arc a) const { return Parent::valid(a); }
 		    /// Change the target node of an arc
 		    /// This function changes the target node of the given arc \c a to \c n.
 		    ///
 		    ///\note \c ArcIt and \c OutArcIt iterators referencing the changed
 		    ///arc remain valid, however \c InArcIt iterators are invalidated.
 		    ///
 		    ///\warning This functionality cannot be used together with the Snapshot
 		    ///feature.
 		    void changeTarget(Arc a, Node n) {
 		      Parent::changeTarget(a,n);
+		    }
 		    /// Change the source node of an arc
 		    /// This function changes the source node of the given arc \c a to \c n.
 		    ///
 		    ///\note \c InArcIt iterators referencing the changed arc remain
 		    ///valid, however \c ArcIt and \c OutArcIt iterators are invalidated.
 		    ///
 		    ///\warning This functionality cannot be used together with the Snapshot
 		    ///feature.
 		    void changeSource(Arc a, Node n) {
 		      Parent::changeSource(a,n);
+		    }
 		    /// Reverse the direction of an arc.
 		    /// This function reverses the direction of the given arc.
 		    ///\note \c ArcIt, \c OutArcIt and \c InArcIt iterators referencing
 		    ///the changed arc are invalidated.
 		    ///
 		    ///\warning This functionality cannot be used together with the Snapshot
 		    ///feature.
 		    void reverseArc(Arc a) {
 		      Node t=target(a);
 		      changeTarget(a,source(a));
 		      changeSource(a,t);
+		    }
 		    ///Contract two nodes.
 		    ///This function contracts the given two nodes.
 		    ///Node \c v is removed, but instead of deleting its
 		    ///incident arcs, they are joined to node \c u.
 		    ///If the last parameter \c r is \c true (this is the default value),
 		    ///then the newly created loops are removed.
 		    ///
 		    ///\note The moved arcs are joined to node \c u using changeSource()
 		    ///or changeTarget(), thus \c ArcIt and \c OutArcIt iterators are
 		    ///invalidated for the outgoing arcs of node \c v and \c InArcIt
 		    ///iterators are invalidated for the incomming arcs of \c v.
 		    ///Moreover all iterators referencing node \c v or the removed
 		    ///loops are also invalidated. Other iterators remain valid.
 		    ///
 		    ///\warning This functionality cannot be used together with the Snapshot
 		    ///feature.
 		    void contract(Node u, Node v, bool r = true)
+		    {
 		      for(OutArcIt e(*this,v);e!=INVALID;) {
 		        OutArcIt f=e;
 		        ++f;
 		        if(r && target(e)==u) erase(e);
 		        else changeSource(e,u);
 		        e=f;
+		      }
 		      for(InArcIt e(*this,v);e!=INVALID;) {
 		        InArcIt f=e;
 		        ++f;
 		        if(r && source(e)==u) erase(e);
 		        else changeTarget(e,u);
 		        e=f;
+		      }
 		      erase(v);
+		    }
 		    ///Split a node.
 		    ///This function splits the given node. First, a new node is added
 		    ///to the digraph, then the source of each outgoing arc of node \c n
 		    ///is moved to this new node.
 		    ///If the second parameter \c connect is \c true (this is the default
 		    ///value), then a new arc from node \c n to the newly created node
 		    ///is also added.
 		    ///\return The newly created node.
 		    ///
 		    ///\note All iterators remain valid.
 		    ///
 		    ///\warning This functionality cannot be used together with the
 		    ///Snapshot feature.
 		    Node split(Node n, bool connect = true) {
 		      Node b = addNode();
 		      nodes[b.id].first_out=nodes[n.id].first_out;
 		      nodes[n.id].first_out=-1;
 		      for(int i=nodes[b.id].first_out; i!=-1; i=arcs[i].next_out) {
 		        arcs[i].source=b.id;
+		      }
 		      if (connect) addArc(n,b);
 		      return b;
+		    }
 		    ///Split an arc.
 		    ///This function splits the given arc. First, a new node \c v is
 		    ///added to the digraph, then the target node of the original arc
 		    ///is set to \c v. Finally, an arc from \c v to the original target
 		    ///is added.
 		    ///\return The newly created node.
 		    ///
 		    ///\note \c InArcIt iterators referencing the original arc are
 		    ///invalidated. Other iterators remain valid.
 		    ///
 		    ///\warning This functionality cannot be used together with the
 		    ///Snapshot feature.
 		    Node split(Arc a) {
 		      Node v = addNode();
 		      addArc(v,target(a));
 		      changeTarget(a,v);
 		      return v;
+		    }
 		    ///Clear the digraph.
 		    ///This function erases all nodes and arcs from the digraph.
 		    ///
 		    ///\note All iterators of the digraph are invalidated, of course.
 		    void clear() {
 		      Parent::clear();
+		    }
 		    /// Reserve memory for nodes.
 		    /// Using this function, it is possible to avoid superfluous memory
 		    /// allocation: if you know that the digraph you want to build will
 		    /// be large (e.g. it will contain millions of nodes and/or arcs),
 		    /// then it is worth reserving space for this amount before starting
 		    /// to build the digraph.
 		    /// \sa reserveArc()
 		    void reserveNode(int n) { nodes.reserve(n); };
 		    /// Reserve memory for arcs.
 		    /// Using this function, it is possible to avoid superfluous memory
 		    /// allocation: if you know that the digraph you want to build will
 		    /// be large (e.g. it will contain millions of nodes and/or arcs),
 		    /// then it is worth reserving space for this amount before starting
 		    /// to build the digraph.
 		    /// \sa reserveNode()
 		    void reserveArc(int m) { arcs.reserve(m); };
 		    /// \brief Class to make a snapshot of the digraph and restore
 		    /// it later.
 		    ///
 		    /// Class to make a snapshot of the digraph and restore it later.
 		    ///
 		    /// The newly added nodes and arcs can be removed using the
 		    /// restore() function.
 		    ///
 		    /// \note After a state is restored, you cannot restore a later state,
 		    /// i.e. you cannot add the removed nodes and arcs again using
 		    /// another Snapshot instance.
 		    ///
 		    /// \warning Node and arc deletions and other modifications (e.g.
 		    /// reversing, contracting, splitting arcs or nodes) cannot be
 		    /// restored. These events invalidate the snapshot.
 		    /// However the arcs and nodes that were added to the digraph after
 		    /// making the current snapshot can be removed without invalidating it.
 		    class Snapshot {
 		    protected:
 		      typedef Parent::NodeNotifier NodeNotifier;
 		      class NodeObserverProxy : public NodeNotifier::ObserverBase {
 		      public:
 		        NodeObserverProxy(Snapshot& _snapshot)
 		          : snapshot(_snapshot) {}
 		        using NodeNotifier::ObserverBase::attach;
 		        using NodeNotifier::ObserverBase::detach;
 		        using NodeNotifier::ObserverBase::attached;
 		      protected:
 		        virtual void add(const Node& node) {
 		          snapshot.addNode(node);
+		        }
 		        virtual void add(const std::vector<Node>& nodes) {
 		          for (int i = nodes.size() - 1; i >= 0; ++i) {
 		            snapshot.addNode(nodes[i]);
+		          }
+		        }
 		        virtual void erase(const Node& node) {
 		          snapshot.eraseNode(node);
+		        }
 		        virtual void erase(const std::vector<Node>& nodes) {
 		          for (int i = 0; i < int(nodes.size()); ++i) {
 		            snapshot.eraseNode(nodes[i]);
+		          }
+		        }
 		        virtual void build() {
 		          Node node;
 		          std::vector<Node> nodes;
 		          for (notifier()->first(node); node != INVALID;
 		               notifier()->next(node)) {
 		            nodes.push_back(node);
+		          }
 		          for (int i = nodes.size() - 1; i >= 0; --i) {
 		            snapshot.addNode(nodes[i]);
+		          }
+		        }
 		        virtual void clear() {
 		          Node node;
 		          for (notifier()->first(node); node != INVALID;
 		               notifier()->next(node)) {
 		            snapshot.eraseNode(node);
+		          }
+		        }
 		        Snapshot& snapshot;
 		      };
@@ -1086,325 +1096,335 @@
 		        arcs[arcs[n].next_out].prev_out = arcs[n].prev_out;
+		      }
 		      if (arcs[n].prev_out != -1) {
 		        arcs[arcs[n].prev_out].next_out = arcs[n].next_out;
 		      } else {
 		        nodes[arcs[n | 1].target].first_out = arcs[n].next_out;
+		      }
 		      if (arcs[n | 1].next_out != -1) {
 		        arcs[arcs[n | 1].next_out].prev_out = arcs[n | 1].prev_out;
+		      }
 		      if (arcs[n | 1].prev_out != -1) {
 		        arcs[arcs[n | 1].prev_out].next_out = arcs[n | 1].next_out;
 		      } else {
 		        nodes[arcs[n].target].first_out = arcs[n | 1].next_out;
+		      }
 		      arcs[n].next_out = first_free_arc;
 		      first_free_arc = n;
 		      arcs[n].prev_out = -2;
 		      arcs[n | 1].prev_out = -2;
+		    }
 		    void clear() {
 		      arcs.clear();
 		      nodes.clear();
 		      first_node = first_free_node = first_free_arc = -1;
+		    }
 		  protected:
 		    void changeV(Edge e, Node n) {
 		      if(arcs[2 * e.id].next_out != -1) {
 		        arcs[arcs[2 * e.id].next_out].prev_out = arcs[2 * e.id].prev_out;
+		      }
 		      if(arcs[2 * e.id].prev_out != -1) {
 		        arcs[arcs[2 * e.id].prev_out].next_out =
 		          arcs[2 * e.id].next_out;
 		      } else {
 		        nodes[arcs[(2 * e.id) | 1].target].first_out =
 		          arcs[2 * e.id].next_out;
+		      }
 		      if (nodes[n.id].first_out != -1) {
 		        arcs[nodes[n.id].first_out].prev_out = 2 * e.id;
+		      }
 		      arcs[(2 * e.id) | 1].target = n.id;
 		      arcs[2 * e.id].prev_out = -1;
 		      arcs[2 * e.id].next_out = nodes[n.id].first_out;
 		      nodes[n.id].first_out = 2 * e.id;
+		    }
 		    void changeU(Edge e, Node n) {
 		      if(arcs[(2 * e.id) | 1].next_out != -1) {
 		        arcs[arcs[(2 * e.id) | 1].next_out].prev_out =
 		          arcs[(2 * e.id) | 1].prev_out;
+		      }
 		      if(arcs[(2 * e.id) | 1].prev_out != -1) {
 		        arcs[arcs[(2 * e.id) | 1].prev_out].next_out =
 		          arcs[(2 * e.id) | 1].next_out;
 		      } else {
 		        nodes[arcs[2 * e.id].target].first_out =
 		          arcs[(2 * e.id) | 1].next_out;
+		      }
 		      if (nodes[n.id].first_out != -1) {
 		        arcs[nodes[n.id].first_out].prev_out = ((2 * e.id) | 1);
+		      }
 		      arcs[2 * e.id].target = n.id;
 		      arcs[(2 * e.id) | 1].prev_out = -1;
 		      arcs[(2 * e.id) | 1].next_out = nodes[n.id].first_out;
 		      nodes[n.id].first_out = ((2 * e.id) | 1);
+		    }
 		  };
 		  typedef GraphExtender<ListGraphBase> ExtendedListGraphBase;
 		  /// \addtogroup graphs
 		  /// @{
 		  ///A general undirected graph structure.
 		  ///\ref ListGraph is a versatile and fast undirected graph
 		  ///implementation based on linked lists that are stored in
 		  ///\c std::vector structures.
 		  ///
 		  ///This type fully conforms to the \ref concepts::Graph "Graph concept"
 		  ///and it also provides several useful additional functionalities.
 		  ///Most of its member functions and nested classes are documented
 		  ///only in the concept class.
 		  ///
 		  ///This class provides only linear time counting for nodes, edges and arcs.
 		  ///
 		  ///\sa concepts::Graph
 		  ///\sa ListDigraph
 		  class ListGraph : public ExtendedListGraphBase {
 		    typedef ExtendedListGraphBase Parent;
 		  private:
 		    /// Graphs are \e not copy constructible. Use GraphCopy instead.
 		    ListGraph(const ListGraph &) :ExtendedListGraphBase()  {};
 		    /// \brief Assignment of a graph to another one is \e not allowed.
 		    /// Use GraphCopy instead.
 		    void operator=(const ListGraph &) {}
 		  public:
 		    /// Constructor
 		    /// Constructor.
 		    ///
 		    ListGraph() {}
 		    typedef Parent::OutArcIt IncEdgeIt;
 		    /// \brief Add a new node to the graph.
 		    ///
 		    /// This function adds a new node to the graph.
 		    /// \return The new node.
 		    Node addNode() { return Parent::addNode(); }
 		    /// \brief Add a new edge to the graph.
 		    ///
 		    /// This function adds a new edge to the graph between nodes
 		    /// \c u and \c v with inherent orientation from node \c u to
 		    /// node \c v.
 		    /// \return The new edge.
 		    Edge addEdge(Node u, Node v) {
 		      return Parent::addEdge(u, v);
+		    }
 		    ///\brief Erase a node from the graph.
 		    ///
-		    /// This function erases the given node from the graph.
+		    /// This function erases the given node along with its incident arcs
 		    /// from the graph.
 		    ///
 		    /// \note All iterators referencing the removed node or the incident
 		    /// edges are invalidated, of course.
 		    void erase(Node n) { Parent::erase(n); }
 		    ///\brief Erase an edge from the graph.
 		    ///
 		    /// This function erases the given edge from the graph.
 		    ///
 		    /// \note All iterators referencing the removed edge are invalidated,
 		    /// of course.
 		    void erase(Edge e) { Parent::erase(e); }
 		    /// Node validity check
 		    /// This function gives back \c true if the given node is valid,
 		    /// i.e. it is a real node of the graph.
 		    ///
 		    /// \warning A removed node could become valid again if new nodes are
 		    /// added to the graph.
 		    bool valid(Node n) const { return Parent::valid(n); }
 		    /// Edge validity check
 		    /// This function gives back \c true if the given edge is valid,
 		    /// i.e. it is a real edge of the graph.
 		    ///
 		    /// \warning A removed edge could become valid again if new edges are
 		    /// added to the graph.
 		    bool valid(Edge e) const { return Parent::valid(e); }
 		    /// Arc validity check
 		    /// This function gives back \c true if the given arc is valid,
 		    /// i.e. it is a real arc of the graph.
 		    ///
 		    /// \warning A removed arc could become valid again if new edges are
 		    /// added to the graph.
 		    bool valid(Arc a) const { return Parent::valid(a); }
 		    /// \brief Change the first node of an edge.
 		    ///
 		    /// This function changes the first node of the given edge \c e to \c n.
 		    ///
 		    ///\note \c EdgeIt and \c ArcIt iterators referencing the
 		    ///changed edge are invalidated and all other iterators whose
 		    ///base node is the changed node are also invalidated.
 		    ///
 		    ///\warning This functionality cannot be used together with the
 		    ///Snapshot feature.
 		    void changeU(Edge e, Node n) {
 		      Parent::changeU(e,n);
+		    }
 		    /// \brief Change the second node of an edge.
 		    ///
 		    /// This function changes the second node of the given edge \c e to \c n.
 		    ///
 		    ///\note \c EdgeIt iterators referencing the changed edge remain
 		    ///valid, however \c ArcIt iterators referencing the changed edge and
 		    ///all other iterators whose base node is the changed node are also
 		    ///invalidated.
 		    ///
 		    ///\warning This functionality cannot be used together with the
 		    ///Snapshot feature.
 		    void changeV(Edge e, Node n) {
 		      Parent::changeV(e,n);
+		    }
 		    /// \brief Contract two nodes.
 		    ///
 		    /// This function contracts the given two nodes.
 		    /// Node \c b is removed, but instead of deleting
 		    /// its incident edges, they are joined to node \c a.
 		    /// If the last parameter \c r is \c true (this is the default value),
 		    /// then the newly created loops are removed.
 		    ///
 		    /// \note The moved edges are joined to node \c a using changeU()
 		    /// or changeV(), thus all edge and arc iterators whose base node is
 		    /// \c b are invalidated.
 		    /// Moreover all iterators referencing node \c b or the removed
 		    /// loops are also invalidated. Other iterators remain valid.
 		    ///
 		    ///\warning This functionality cannot be used together with the
 		    ///Snapshot feature.
 		    void contract(Node a, Node b, bool r = true) {
 		      for(IncEdgeIt e(*this, b); e!=INVALID;) {
 		        IncEdgeIt f = e; ++f;
 		        if (r && runningNode(e) == a) {
 		          erase(e);
 		        } else if (u(e) == b) {
 		          changeU(e, a);
 		        } else {
 		          changeV(e, a);
+		        }
 		        e = f;
+		      }
 		      erase(b);
+		    }
 		    ///Clear the graph.
 		    ///This function erases all nodes and arcs from the graph.
 		    ///
 		    ///\note All iterators of the graph are invalidated, of course.
 		    void clear() {
 		      Parent::clear();
+		    }
 		    /// Reserve memory for nodes.
 		    /// Using this function, it is possible to avoid superfluous memory
 		    /// allocation: if you know that the graph you want to build will
 		    /// be large (e.g. it will contain millions of nodes and/or edges),
 		    /// then it is worth reserving space for this amount before starting
 		    /// to build the graph.
 		    /// \sa reserveEdge()
 		    void reserveNode(int n) { nodes.reserve(n); };
 		    /// Reserve memory for edges.
 		    /// Using this function, it is possible to avoid superfluous memory
 		    /// allocation: if you know that the graph you want to build will
 		    /// be large (e.g. it will contain millions of nodes and/or edges),
 		    /// then it is worth reserving space for this amount before starting
 		    /// to build the graph.
 		    /// \sa reserveNode()
 		    void reserveEdge(int m) { arcs.reserve(2 * m); };
 		    /// \brief Class to make a snapshot of the graph and restore
 		    /// it later.
 		    ///
 		    /// Class to make a snapshot of the graph and restore it later.
 		    ///
 		    /// The newly added nodes and edges can be removed
 		    /// using the restore() function.
 		    ///
 		    /// \note After a state is restored, you cannot restore a later state,
 		    /// i.e. you cannot add the removed nodes and edges again using
 		    /// another Snapshot instance.
 		    ///
 		    /// \warning Node and edge deletions and other modifications
 		    /// (e.g. changing the end-nodes of edges or contracting nodes)
 		    /// cannot be restored. These events invalidate the snapshot.
 		    /// However the edges and nodes that were added to the graph after
 		    /// making the current snapshot can be removed without invalidating it.
 		    class Snapshot {
 		    protected:
 		      typedef Parent::NodeNotifier NodeNotifier;
 		      class NodeObserverProxy : public NodeNotifier::ObserverBase {
 		      public:
 		        NodeObserverProxy(Snapshot& _snapshot)
 		          : snapshot(_snapshot) {}
 		        using NodeNotifier::ObserverBase::attach;
 		        using NodeNotifier::ObserverBase::detach;
 		        using NodeNotifier::ObserverBase::attached;
 		      protected:
 		        virtual void add(const Node& node) {
 		          snapshot.addNode(node);
+		        }
 		        virtual void add(const std::vector<Node>& nodes) {
 		          for (int i = nodes.size() - 1; i >= 0; ++i) {
 		            snapshot.addNode(nodes[i]);
+		          }
+		        }
 		        virtual void erase(const Node& node) {
 		          snapshot.eraseNode(node);
+		        }
 		        virtual void erase(const std::vector<Node>& nodes) {
 		          for (int i = 0; i < int(nodes.size()); ++i) {
 		            snapshot.eraseNode(nodes[i]);
+		          }
+		        }
 		        virtual void build() {
 		          Node node;
 		          std::vector<Node> nodes;
 		          for (notifier()->first(node); node != INVALID;
 		               notifier()->next(node)) {
 		            nodes.push_back(node);
+		          }
 		          for (int i = nodes.size() - 1; i >= 0; --i) {
 		            snapshot.addNode(nodes[i]);
+		          }
+		        }
 		        virtual void clear() {
 		          Node node;
 		          for (notifier()->first(node); node != INVALID;
 		               notifier()->next(node)) {
 		            snapshot.eraseNode(node);
+		          }
+		        }
 		        Snapshot& snapshot;
 		      };

lemon/smart_graph.h

Show inline comments

@@ -101,192 +101,194 @@
 		    Node target(Arc a) const { return Node(arcs[a._id].target); }
 		    static int id(Node v) { return v._id; }
 		    static int id(Arc a) { return a._id; }
 		    static Node nodeFromId(int id) { return Node(id);}
 		    static Arc arcFromId(int id) { return Arc(id);}
 		    bool valid(Node n) const {
 		      return n._id >= 0 && n._id < static_cast<int>(nodes.size());
+		    }
 		    bool valid(Arc a) const {
 		      return a._id >= 0 && a._id < static_cast<int>(arcs.size());
+		    }
 		    class Node {
 		      friend class SmartDigraphBase;
 		      friend class SmartDigraph;
 		    protected:
 		      int _id;
 		      explicit Node(int id) : _id(id) {}
 		    public:
 		      Node() {}
 		      Node (Invalid) : _id(-1) {}
 		      bool operator==(const Node i) const {return _id == i._id;}
 		      bool operator!=(const Node i) const {return _id != i._id;}
 		      bool operator<(const Node i) const {return _id < i._id;}
 		    };
 		    class Arc {
 		      friend class SmartDigraphBase;
 		      friend class SmartDigraph;
 		    protected:
 		      int _id;
 		      explicit Arc(int id) : _id(id) {}
 		    public:
 		      Arc() { }
 		      Arc (Invalid) : _id(-1) {}
 		      bool operator==(const Arc i) const {return _id == i._id;}
 		      bool operator!=(const Arc i) const {return _id != i._id;}
 		      bool operator<(const Arc i) const {return _id < i._id;}
 		    };
 		    void first(Node& node) const {
 		      node._id = nodes.size() - 1;
+		    }
 		    static void next(Node& node) {
 		      --node._id;
+		    }
 		    void first(Arc& arc) const {
 		      arc._id = arcs.size() - 1;
+		    }
 		    static void next(Arc& arc) {
 		      --arc._id;
+		    }
 		    void firstOut(Arc& arc, const Node& node) const {
 		      arc._id = nodes[node._id].first_out;
+		    }
 		    void nextOut(Arc& arc) const {
 		      arc._id = arcs[arc._id].next_out;
+		    }
 		    void firstIn(Arc& arc, const Node& node) const {
 		      arc._id = nodes[node._id].first_in;
+		    }
 		    void nextIn(Arc& arc) const {
 		      arc._id = arcs[arc._id].next_in;
+		    }
 		  };
 		  typedef DigraphExtender<SmartDigraphBase> ExtendedSmartDigraphBase;
 		  ///\ingroup graphs
 		  ///
 		  ///\brief A smart directed graph class.
 		  ///
 		  ///\ref SmartDigraph is a simple and fast digraph implementation.
 		  ///It is also quite memory efficient but at the price
 		  ///that it does not support node and arc deletion
 		  ///(except for the Snapshot feature).
 		  ///
 		  ///This type fully conforms to the \ref concepts::Digraph "Digraph concept"
 		  ///and it also provides some additional functionalities.
 		  ///Most of its member functions and nested classes are documented
 		  ///only in the concept class.
 		  ///
 		  ///This class provides constant time counting for nodes and arcs.
 		  ///
 		  ///\sa concepts::Digraph
 		  ///\sa SmartGraph
 		  class SmartDigraph : public ExtendedSmartDigraphBase {
 		    typedef ExtendedSmartDigraphBase Parent;
 		  private:
 		    /// Digraphs are \e not copy constructible. Use DigraphCopy instead.
 		    SmartDigraph(const SmartDigraph &) : ExtendedSmartDigraphBase() {};
 		    /// \brief Assignment of a digraph to another one is \e not allowed.
 		    /// Use DigraphCopy instead.
 		    void operator=(const SmartDigraph &) {}
 		  public:
 		    /// Constructor
 		    /// Constructor.
 		    ///
 		    SmartDigraph() {};
 		    ///Add a new node to the digraph.
 		    ///This function adds a new node to the digraph.
 		    ///\return The new node.
 		    Node addNode() { return Parent::addNode(); }
 		    ///Add a new arc to the digraph.
 		    ///This function adds a new arc to the digraph with source node \c s
 		    ///and target node \c t.
 		    ///\return The new arc.
 		    Arc addArc(Node s, Node t) {
 		      return Parent::addArc(s, t);
+		    }
 		    /// \brief Node validity check
 		    ///
 		    /// This function gives back \c true if the given node is valid,
 		    /// i.e. it is a real node of the digraph.
 		    ///
 		    /// \warning A removed node (using Snapshot) could become valid again
 		    /// if new nodes are added to the digraph.
 		    bool valid(Node n) const { return Parent::valid(n); }
 		    /// \brief Arc validity check
 		    ///
 		    /// This function gives back \c true if the given arc is valid,
 		    /// i.e. it is a real arc of the digraph.
 		    ///
 		    /// \warning A removed arc (using Snapshot) could become valid again
 		    /// if new arcs are added to the graph.
 		    bool valid(Arc a) const { return Parent::valid(a); }
 		    ///Split a node.
 		    ///This function splits the given node. First, a new node is added
 		    ///to the digraph, then the source of each outgoing arc of node \c n
 		    ///is moved to this new node.
 		    ///If the second parameter \c connect is \c true (this is the default
 		    ///value), then a new arc from node \c n to the newly created node
 		    ///is also added.
 		    ///\return The newly created node.
 		    ///
 		    ///\note All iterators remain valid.
 		    ///
 		    ///\warning This functionality cannot be used together with the Snapshot
 		    ///feature.
 		    Node split(Node n, bool connect = true)
+		    {
 		      Node b = addNode();
 		      nodes[b._id].first_out=nodes[n._id].first_out;
 		      nodes[n._id].first_out=-1;
 		      for(int i=nodes[b._id].first_out; i!=-1; i=arcs[i].next_out) {
 		        arcs[i].source=b._id;
+		      }
 		      if(connect) addArc(n,b);
 		      return b;
+		    }
 		    ///Clear the digraph.
 		    ///This function erases all nodes and arcs from the digraph.
 		    ///
 		    void clear() {
 		      Parent::clear();
+		    }
 		    /// Reserve memory for nodes.
 		    /// Using this function, it is possible to avoid superfluous memory
 		    /// allocation: if you know that the digraph you want to build will
 		    /// be large (e.g. it will contain millions of nodes and/or arcs),
 		    /// then it is worth reserving space for this amount before starting
 		    /// to build the digraph.
 		    /// \sa reserveArc()
 		    void reserveNode(int n) { nodes.reserve(n); };
@@ -527,192 +529,194 @@
 		    void firstIn(Arc &arc, const Node& v) const {
 		      arc._id = ((nodes[v._id].first_out) ^ 1);
 		      if (arc._id == -2) arc._id = -1;
+		    }
 		    void nextIn(Arc &arc) const {
 		      arc._id = ((arcs[arc._id ^ 1].next_out) ^ 1);
 		      if (arc._id == -2) arc._id = -1;
+		    }
 		    void firstInc(Edge &arc, bool& d, const Node& v) const {
 		      int de = nodes[v._id].first_out;
 		      if (de != -1) {
 		        arc._id = de / 2;
 		        d = ((de & 1) == 1);
 		      } else {
 		        arc._id = -1;
 		        d = true;
+		      }
+		    }
 		    void nextInc(Edge &arc, bool& d) const {
 		      int de = (arcs[(arc._id * 2) | (d ? 1 : 0)].next_out);
 		      if (de != -1) {
 		        arc._id = de / 2;
 		        d = ((de & 1) == 1);
 		      } else {
 		        arc._id = -1;
 		        d = true;
+		      }
+		    }
 		    static int id(Node v) { return v._id; }
 		    static int id(Arc e) { return e._id; }
 		    static int id(Edge e) { return e._id; }
 		    static Node nodeFromId(int id) { return Node(id);}
 		    static Arc arcFromId(int id) { return Arc(id);}
 		    static Edge edgeFromId(int id) { return Edge(id);}
 		    bool valid(Node n) const {
 		      return n._id >= 0 && n._id < static_cast<int>(nodes.size());
+		    }
 		    bool valid(Arc a) const {
 		      return a._id >= 0 && a._id < static_cast<int>(arcs.size());
+		    }
 		    bool valid(Edge e) const {
 		      return e._id >= 0 && 2 * e._id < static_cast<int>(arcs.size());
+		    }
 		    Node addNode() {
 		      int n = nodes.size();
 		      nodes.push_back(NodeT());
 		      nodes[n].first_out = -1;
 		      return Node(n);
+		    }
 		    Edge addEdge(Node u, Node v) {
 		      int n = arcs.size();
 		      arcs.push_back(ArcT());
 		      arcs.push_back(ArcT());
 		      arcs[n].target = u._id;
 		      arcs[n | 1].target = v._id;
 		      arcs[n].next_out = nodes[v._id].first_out;
 		      nodes[v._id].first_out = n;
 		      arcs[n | 1].next_out = nodes[u._id].first_out;
 		      nodes[u._id].first_out = (n | 1);
 		      return Edge(n / 2);
+		    }
 		    void clear() {
 		      arcs.clear();
 		      nodes.clear();
+		    }
 		  };
 		  typedef GraphExtender<SmartGraphBase> ExtendedSmartGraphBase;
 		  /// \ingroup graphs
 		  ///
 		  /// \brief A smart undirected graph class.
 		  ///
 		  /// \ref SmartGraph is a simple and fast graph implementation.
 		  /// It is also quite memory efficient but at the price
 		  /// that it does not support node and edge deletion
 		  /// (except for the Snapshot feature).
 		  ///
 		  /// This type fully conforms to the \ref concepts::Graph "Graph concept"
 		  /// and it also provides some additional functionalities.
 		  /// Most of its member functions and nested classes are documented
 		  /// only in the concept class.
 		  ///
 		  /// This class provides constant time counting for nodes, edges and arcs.
 		  ///
 		  /// \sa concepts::Graph
 		  /// \sa SmartDigraph
 		  class SmartGraph : public ExtendedSmartGraphBase {
 		    typedef ExtendedSmartGraphBase Parent;
 		  private:
 		    /// Graphs are \e not copy constructible. Use GraphCopy instead.
 		    SmartGraph(const SmartGraph &) : ExtendedSmartGraphBase() {};
 		    /// \brief Assignment of a graph to another one is \e not allowed.
 		    /// Use GraphCopy instead.
 		    void operator=(const SmartGraph &) {}
 		  public:
 		    /// Constructor
 		    /// Constructor.
 		    ///
 		    SmartGraph() {}
 		    /// \brief Add a new node to the graph.
 		    ///
 		    /// This function adds a new node to the graph.
 		    /// \return The new node.
 		    Node addNode() { return Parent::addNode(); }
 		    /// \brief Add a new edge to the graph.
 		    ///
 		    /// This function adds a new edge to the graph between nodes
 		    /// \c u and \c v with inherent orientation from node \c u to
 		    /// node \c v.
 		    /// \return The new edge.
 		    Edge addEdge(Node u, Node v) {
 		      return Parent::addEdge(u, v);
+		    }
 		    /// \brief Node validity check
 		    ///
 		    /// This function gives back \c true if the given node is valid,
 		    /// i.e. it is a real node of the graph.
 		    ///
 		    /// \warning A removed node (using Snapshot) could become valid again
 		    /// if new nodes are added to the graph.
 		    bool valid(Node n) const { return Parent::valid(n); }
 		    /// \brief Edge validity check
 		    ///
 		    /// This function gives back \c true if the given edge is valid,
 		    /// i.e. it is a real edge of the graph.
 		    ///
 		    /// \warning A removed edge (using Snapshot) could become valid again
 		    /// if new edges are added to the graph.
 		    bool valid(Edge e) const { return Parent::valid(e); }
 		    /// \brief Arc validity check
 		    ///
 		    /// This function gives back \c true if the given arc is valid,
 		    /// i.e. it is a real arc of the graph.
 		    ///
 		    /// \warning A removed arc (using Snapshot) could become valid again
 		    /// if new edges are added to the graph.
 		    bool valid(Arc a) const { return Parent::valid(a); }
 		    ///Clear the graph.
 		    ///This function erases all nodes and arcs from the graph.
 		    ///
 		    void clear() {
 		      Parent::clear();
+		    }
 		    /// Reserve memory for nodes.
 		    /// Using this function, it is possible to avoid superfluous memory
 		    /// allocation: if you know that the graph you want to build will
 		    /// be large (e.g. it will contain millions of nodes and/or edges),
 		    /// then it is worth reserving space for this amount before starting
 		    /// to build the graph.
 		    /// \sa reserveEdge()
 		    void reserveNode(int n) { nodes.reserve(n); };
 		    /// Reserve memory for edges.
 		    /// Using this function, it is possible to avoid superfluous memory
 		    /// allocation: if you know that the graph you want to build will
 		    /// be large (e.g. it will contain millions of nodes and/or edges),
 		    /// then it is worth reserving space for this amount before starting
 		    /// to build the graph.
 		    /// \sa reserveNode()
 		    void reserveEdge(int m) { arcs.reserve(2 * m); };
 		  public:
 		    class Snapshot;
 		  protected:

lemon/static_graph.h

Show inline comments

@@ -199,192 +199,194 @@
+		    }
 		    template <typename ArcListIterator>
 		    void build(int n, ArcListIterator first, ArcListIterator last) {
 		      built = true;
 		      node_num = n;
 		      arc_num = std::distance(first, last);
 		      node_first_out = new int[node_num + 1];
 		      node_first_in = new int[node_num];
 		      arc_source = new int[arc_num];
 		      arc_target = new int[arc_num];
 		      arc_next_out = new int[arc_num];
 		      arc_next_in = new int[arc_num];
 		      for (int i = 0; i != node_num; ++i) {
 		        node_first_in[i] = -1;
+		      }
 		      int arc_index = 0;
 		      for (int i = 0; i != node_num; ++i) {
 		        node_first_out[i] = arc_index;
 		        for ( ; first != last && (*first).first == i; ++first) {
 		          int j = (*first).second;
 		          LEMON_ASSERT(j >= 0 && j < node_num,
 		            "Wrong arc list for StaticDigraph::build()");
 		          arc_source[arc_index] = i;
 		          arc_target[arc_index] = j;
 		          arc_next_in[arc_index] = node_first_in[j];
 		          node_first_in[j] = arc_index;
 		          arc_next_out[arc_index] = arc_index + 1;
 		          ++arc_index;
+		        }
 		        if (arc_index > node_first_out[i])
 		          arc_next_out[arc_index - 1] = -1;
+		      }
 		      LEMON_ASSERT(first == last,
 		        "Wrong arc list for StaticDigraph::build()");
 		      node_first_out[node_num] = arc_num;
+		    }
 		  protected:
 		    void fastFirstOut(Arc& e, const Node& n) const {
 		      e.id = node_first_out[n.id];
+		    }
 		    static void fastNextOut(Arc& e) {
 		      ++e.id;
+		    }
 		    void fastLastOut(Arc& e, const Node& n) const {
 		      e.id = node_first_out[n.id + 1];
+		    }
 		  protected:
 		    bool built;
 		    int node_num;
 		    int arc_num;
 		    int *node_first_out;
 		    int *node_first_in;
 		    int *arc_source;
 		    int *arc_target;
 		    int *arc_next_in;
 		    int *arc_next_out;
 		  };
 		  typedef DigraphExtender<StaticDigraphBase> ExtendedStaticDigraphBase;
 		  /// \ingroup graphs
 		  ///
 		  /// \brief A static directed graph class.
 		  ///
 		  /// \ref StaticDigraph is a highly efficient digraph implementation,
 		  /// but it is fully static.
 		  /// It stores only two \c int values for each node and only four \c int
 		  /// values for each arc. Moreover it provides faster item iteration than
 		  /// \ref ListDigraph and \ref SmartDigraph, especially using \c OutArcIt
 		  /// iterators, since its arcs are stored in an appropriate order.
 		  /// However it only provides build() and clear() functions and does not
 		  /// support any other modification of the digraph.
 		  ///
 		  /// Since this digraph structure is completely static, its nodes and arcs
 		  /// can be indexed with integers from the ranges <tt>[0..nodeNum()-1]</tt>
 		  /// and <tt>[0..arcNum()-1]</tt>, respectively.
 		  /// The index of an item is the same as its ID, it can be obtained
 		  /// using the corresponding \ref index() or \ref concepts::Digraph::id()
 		  /// "id()" function. A node or arc with a certain index can be obtained
 		  /// using node() or arc().
 		  ///
 		  /// This type fully conforms to the \ref concepts::Digraph "Digraph concept".
 		  /// Most of its member functions and nested classes are documented
 		  /// only in the concept class.
 		  ///
 		  /// This class provides constant time counting for nodes and arcs.
 		  ///
 		  /// \sa concepts::Digraph
 		  class StaticDigraph : public ExtendedStaticDigraphBase {
 		  public:
 		    typedef ExtendedStaticDigraphBase Parent;
 		  public:
 		    /// \brief Constructor
 		    ///
 		    /// Default constructor.
 		    StaticDigraph() : Parent() {}
 		    /// \brief The node with the given index.
 		    ///
 		    /// This function returns the node with the given index.
 		    /// \sa index()
 		    static Node node(int ix) { return Parent::nodeFromId(ix); }
 		    /// \brief The arc with the given index.
 		    ///
 		    /// This function returns the arc with the given index.
 		    /// \sa index()
 		    static Arc arc(int ix) { return Parent::arcFromId(ix); }
 		    /// \brief The index of the given node.
 		    ///
 		    /// This function returns the index of the the given node.
 		    /// \sa node()
 		    static int index(Node node) { return Parent::id(node); }
 		    /// \brief The index of the given arc.
 		    ///
 		    /// This function returns the index of the the given arc.
 		    /// \sa arc()
 		    static int index(Arc arc) { return Parent::id(arc); }
 		    /// \brief Number of nodes.
 		    ///
 		    /// This function returns the number of nodes.
 		    int nodeNum() const { return node_num; }
 		    /// \brief Number of arcs.
 		    ///
 		    /// This function returns the number of arcs.
 		    int arcNum() const { return arc_num; }
 		    /// \brief Build the digraph copying another digraph.
 		    ///
 		    /// This function builds the digraph copying another digraph of any
 		    /// kind. It can be called more than once, but in such case, the whole
 		    /// structure and all maps will be cleared and rebuilt.
 		    ///
 		    /// This method also makes possible to copy a digraph to a StaticDigraph
 		    /// structure using \ref DigraphCopy.
 		    ///
 		    /// \param digraph An existing digraph to be copied.
 		    /// \param nodeRef The node references will be copied into this map.
 		    /// Its key type must be \c Digraph::Node and its value type must be
 		    /// \c StaticDigraph::Node.
 		    /// It must conform to the \ref concepts::ReadWriteMap "ReadWriteMap"
 		    /// concept.
 		    /// \param arcRef The arc references will be copied into this map.
 		    /// Its key type must be \c Digraph::Arc and its value type must be
 		    /// \c StaticDigraph::Arc.
 		    /// It must conform to the \ref concepts::WriteMap "WriteMap" concept.
 		    ///
 		    /// \note If you do not need the arc references, then you could use
 		    /// \ref NullMap for the last parameter. However the node references
 		    /// are required by the function itself, thus they must be readable
 		    /// from the map.
 		    template <typename Digraph, typename NodeRefMap, typename ArcRefMap>
 		    void build(const Digraph& digraph, NodeRefMap& nodeRef, ArcRefMap& arcRef) {
 		      if (built) Parent::clear();
 		      Parent::build(digraph, nodeRef, arcRef);
+		    }
 		    /// \brief Build the digraph from an arc list.
 		    ///
 		    /// This function builds the digraph from the given arc list.
 		    /// It can be called more than once, but in such case, the whole
 		    /// structure and all maps will be cleared and rebuilt.
 		    ///
 		    /// The list of the arcs must be given in the range <tt>[begin, end)</tt>
 		    /// specified by STL compatible itartors whose \c value_type must be
 		    /// <tt>std::pair<int,int></tt>.
 		    /// Each arc must be specified by a pair of integer indices
 		    /// from the range <tt>[0..n-1]</tt>. <i>The pairs must be in a
 		    /// non-decreasing order with respect to their first values.</i>
 		    /// If the k-th pair in the list is <tt>(i,j)</tt>, then
 		    /// <tt>arc(k-1)</tt> will connect <tt>node(i)</tt> to <tt>node(j)</tt>.
 		    ///
 		    /// \param n The number of nodes.
 		    /// \param begin An iterator pointing to the beginning of the arc list.
 		    /// \param end An iterator pointing to the end of the arc list.
 		    ///

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