LEMON/LEMON-official Changeset - r664:4137ef9aacc6

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Changeset - r664:4137ef9aacc6

« 663:f2d6d3

665:b95898 »

r664:4137ef9aacc6

Fri, 24 Apr 2009 11:54:48

[Not Reviewed]

0 comments (0 inline)

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

Fix and uniform the usage of Graph and Parent typedefs (#268) - Rename Graph typedefs to GraphType in the implementation of graph maps and MapExtender to prevent conflicts (especially using VS). They are not public. - Make Parent typedefs private in all classes. - Replace Digraph with Graph in some places (fix faulty renamings of the script). - Use Graph and Digraph typedefs (more) consequently.

0 19 0

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19 files changed:

lemon/adaptors.h

lemon/bits/array_map.h

lemon/bits/base_extender.h

lemon/bits/default_map.h

lemon/bits/edge_set_extender.h

lemon/bits/graph_adaptor_extender.h

lemon/bits/graph_extender.h

lemon/bits/map_extender.h

lemon/bits/vector_map.h

lemon/concepts/graph_components.h

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lemon/adaptors.h

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 		/* -*- mode: C++; indent-tabs-mode: nil; -*-
+		 *
 		 * This file is a part of LEMON, a generic C++ optimization library.
+		 *
 		 * Copyright (C) 2003-2009
 		 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 		 * (Egervary Research Group on Combinatorial Optimization, EGRES).
+		 *
 		 * Permission to use, modify and distribute this software is granted
 		 * provided that this copyright notice appears in all copies. For
 		 * precise terms see the accompanying LICENSE file.
+		 *
 		 * This software is provided "AS IS" with no warranty of any kind,
 		 * express or implied, and with no claim as to its suitability for any
 		 * purpose.
+		 *
 		 */
 		#ifndef LEMON_ADAPTORS_H
 		#define LEMON_ADAPTORS_H
 		/// \ingroup graph_adaptors
 		/// \file
 		/// \brief Adaptor classes for digraphs and graphs
 		///
 		/// This file contains several useful adaptors for digraphs and graphs.
 		#include <lemon/core.h>
 		#include <lemon/maps.h>
 		#include <lemon/bits/variant.h>
 		#include <lemon/bits/graph_adaptor_extender.h>
 		#include <lemon/bits/map_extender.h>
 		#include <lemon/tolerance.h>
 		#include <algorithm>
 		namespace lemon {
 		#ifdef _MSC_VER
 		#define LEMON_SCOPE_FIX(OUTER, NESTED) OUTER::NESTED
 		#else
 		#define LEMON_SCOPE_FIX(OUTER, NESTED) typename OUTER::template NESTED
 		#endif
 		  template<typename DGR>
 		  class DigraphAdaptorBase {
 		  public:
 		    typedef DGR Digraph;
 		    typedef DigraphAdaptorBase Adaptor;
 		  protected:
 		    DGR* _digraph;
 		    DigraphAdaptorBase() : _digraph(0) { }
 		    void initialize(DGR& digraph) { _digraph = &digraph; }
 		  public:
 		    DigraphAdaptorBase(DGR& digraph) : _digraph(&digraph) { }
 		    typedef typename DGR::Node Node;
 		    typedef typename DGR::Arc Arc;
 		    void first(Node& i) const { _digraph->first(i); }
 		    void first(Arc& i) const { _digraph->first(i); }
 		    void firstIn(Arc& i, const Node& n) const { _digraph->firstIn(i, n); }
 		    void firstOut(Arc& i, const Node& n ) const { _digraph->firstOut(i, n); }
 		    void next(Node& i) const { _digraph->next(i); }
 		    void next(Arc& i) const { _digraph->next(i); }
 		    void nextIn(Arc& i) const { _digraph->nextIn(i); }
 		    void nextOut(Arc& i) const { _digraph->nextOut(i); }
 		    Node source(const Arc& a) const { return _digraph->source(a); }
 		    Node target(const Arc& a) const { return _digraph->target(a); }
 		    typedef NodeNumTagIndicator<DGR> NodeNumTag;
 		    int nodeNum() const { return _digraph->nodeNum(); }
 		    typedef ArcNumTagIndicator<DGR> ArcNumTag;
 		    int arcNum() const { return _digraph->arcNum(); }
 		    typedef FindArcTagIndicator<DGR> FindArcTag;
 		    Arc findArc(const Node& u, const Node& v, const Arc& prev = INVALID) const {
 		      return _digraph->findArc(u, v, prev);
+		    }
 		    Node addNode() { return _digraph->addNode(); }
 		    Arc addArc(const Node& u, const Node& v) { return _digraph->addArc(u, v); }
 		    void erase(const Node& n) { _digraph->erase(n); }
 		    void erase(const Arc& a) { _digraph->erase(a); }
 		    void clear() { _digraph->clear(); }
 		    int id(const Node& n) const { return _digraph->id(n); }
 		    int id(const Arc& a) const { return _digraph->id(a); }
 		    Node nodeFromId(int ix) const { return _digraph->nodeFromId(ix); }
 		    Arc arcFromId(int ix) const { return _digraph->arcFromId(ix); }
 		    int maxNodeId() const { return _digraph->maxNodeId(); }
 		    int maxArcId() const { return _digraph->maxArcId(); }
 		    typedef typename ItemSetTraits<DGR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const { return _digraph->notifier(Node()); }
 		    typedef typename ItemSetTraits<DGR, Arc>::ItemNotifier ArcNotifier;
 		    ArcNotifier& notifier(Arc) const { return _digraph->notifier(Arc()); }
 		    template <typename V>
 		    class NodeMap : public DGR::template NodeMap<V> {
 		      typedef typename DGR::template NodeMap<V> Parent;
 		    public:
 		      typedef typename DGR::template NodeMap<V> Parent;
 		      explicit NodeMap(const Adaptor& adaptor)
 		        : Parent(*adaptor._digraph) {}
 		      NodeMap(const Adaptor& adaptor, const V& value)
 		        : Parent(*adaptor._digraph, 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 DGR::template ArcMap<V> {
 		      typedef typename DGR::template ArcMap<V> Parent;
 		    public:
 		      typedef typename DGR::template ArcMap<V> Parent;
 		      explicit ArcMap(const DigraphAdaptorBase<DGR>& adaptor)
 		        : Parent(*adaptor._digraph) {}
 		      ArcMap(const DigraphAdaptorBase<DGR>& adaptor, const V& value)
 		        : Parent(*adaptor._digraph, 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 GR>
 		  class GraphAdaptorBase {
 		  public:
 		    typedef GR Graph;
 		  protected:
 		    GR* _graph;
 		    GraphAdaptorBase() : _graph(0) {}
 		    void initialize(GR& graph) { _graph = &graph; }
 		  public:
 		    GraphAdaptorBase(GR& graph) : _graph(&graph) {}
 		    typedef typename GR::Node Node;
 		    typedef typename GR::Arc Arc;
 		    typedef typename GR::Edge Edge;
 		    void first(Node& i) const { _graph->first(i); }
 		    void first(Arc& i) const { _graph->first(i); }
 		    void first(Edge& i) const { _graph->first(i); }
 		    void firstIn(Arc& i, const Node& n) const { _graph->firstIn(i, n); }
 		    void firstOut(Arc& i, const Node& n ) const { _graph->firstOut(i, n); }
 		    void firstInc(Edge &i, bool &d, const Node &n) const {
 		      _graph->firstInc(i, d, n);
+		    }
 		    void next(Node& i) const { _graph->next(i); }
 		    void next(Arc& i) const { _graph->next(i); }
 		    void next(Edge& i) const { _graph->next(i); }
 		    void nextIn(Arc& i) const { _graph->nextIn(i); }
 		    void nextOut(Arc& i) const { _graph->nextOut(i); }
 		    void nextInc(Edge &i, bool &d) const { _graph->nextInc(i, d); }
 		    Node u(const Edge& e) const { return _graph->u(e); }
 		    Node v(const Edge& e) const { return _graph->v(e); }
 		    Node source(const Arc& a) const { return _graph->source(a); }
 		    Node target(const Arc& a) const { return _graph->target(a); }
 		    typedef NodeNumTagIndicator<Graph> NodeNumTag;
 		    int nodeNum() const { return _graph->nodeNum(); }
 		    typedef ArcNumTagIndicator<Graph> ArcNumTag;
 		    int arcNum() const { return _graph->arcNum(); }
 		    typedef EdgeNumTagIndicator<Graph> EdgeNumTag;
 		    int edgeNum() const { return _graph->edgeNum(); }
 		    typedef FindArcTagIndicator<Graph> FindArcTag;
 		    Arc findArc(const Node& u, const Node& v,
 		                const Arc& prev = INVALID) const {
 		      return _graph->findArc(u, v, prev);
+		    }
 		    typedef FindEdgeTagIndicator<Graph> FindEdgeTag;
 		    Edge findEdge(const Node& u, const Node& v,
 		                  const Edge& prev = INVALID) const {
 		      return _graph->findEdge(u, v, prev);
+		    }
 		    Node addNode() { return _graph->addNode(); }
 		    Edge addEdge(const Node& u, const Node& v) { return _graph->addEdge(u, v); }
 		    void erase(const Node& i) { _graph->erase(i); }
 		    void erase(const Edge& i) { _graph->erase(i); }
 		    void clear() { _graph->clear(); }
 		    bool direction(const Arc& a) const { return _graph->direction(a); }
 		    Arc direct(const Edge& e, bool d) const { return _graph->direct(e, d); }
 		    int id(const Node& v) const { return _graph->id(v); }
 		    int id(const Arc& a) const { return _graph->id(a); }
 		    int id(const Edge& e) const { return _graph->id(e); }
 		    Node nodeFromId(int ix) const { return _graph->nodeFromId(ix); }
 		    Arc arcFromId(int ix) const { return _graph->arcFromId(ix); }
 		    Edge edgeFromId(int ix) const { return _graph->edgeFromId(ix); }
 		    int maxNodeId() const { return _graph->maxNodeId(); }
 		    int maxArcId() const { return _graph->maxArcId(); }
 		    int maxEdgeId() 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()); }
 		    typedef typename ItemSetTraits<GR, Edge>::ItemNotifier EdgeNotifier;
 		    EdgeNotifier& notifier(Edge) const { return _graph->notifier(Edge()); }
 		    template <typename V>
 		    class NodeMap : public GR::template NodeMap<V> {
 		      typedef typename GR::template NodeMap<V> Parent;
 		    public:
 		      typedef typename GR::template NodeMap<V> Parent;
 		      explicit NodeMap(const GraphAdaptorBase<GR>& adapter)
 		        : Parent(*adapter._graph) {}
 		      NodeMap(const GraphAdaptorBase<GR>& 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 ArcMap<V> {
 		      typedef typename GR::template ArcMap<V> Parent;
 		    public:
 		      typedef typename GR::template ArcMap<V> Parent;
 		      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:
 		      typedef typename GR::template EdgeMap<V> Parent;
 		      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;
 		    typedef DigraphAdaptorBase<DGR> Parent;
 		  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.
 		  ///
 		  /// \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;
 		    typedef DigraphAdaptorExtender<ReverseDigraphBase<DGR> > Parent;
 		  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;
 		    typedef DigraphAdaptorBase<DGR> Parent;
 		  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);
+		    }
 		    void next(Arc& i) const {
 		      Parent::next(i);
 		      while (i != INVALID && (!(*_arc_filter)[i]
 		                              || !(*_node_filter)[Parent::source(i)]
 		                              || !(*_node_filter)[Parent::target(i)]))
 		        Parent::next(i);
+		    }
 		    void nextIn(Arc& i) const {
 		      Parent::nextIn(i);
 		      while (i != INVALID && (!(*_arc_filter)[i]
 		                              || !(*_node_filter)[Parent::source(i)]))
 		        Parent::nextIn(i);
+		    }
 		    void nextOut(Arc& i) const {
 		      Parent::nextOut(i);
 		      while (i != INVALID && (!(*_arc_filter)[i]
 		                              || !(*_node_filter)[Parent::target(i)]))
 		        Parent::nextOut(i);
+		    }
 		    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;
+		    }
 		  public:
 		    template <typename V>
 		    class NodeMap
 		      : public SubMapExtender<SubDigraphBase<DGR, NF, AF, ch>,
 			      LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, NodeMap<V>)> {
 		      typedef SubMapExtender<SubDigraphBase<DGR, NF, AF, ch>,
 			LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, NodeMap<V>)> Parent;
 		    public:
 		      typedef V Value;
 		      typedef SubMapExtender<SubDigraphBase<DGR, NF, AF, ch>,
 			    LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, NodeMap<V>)> Parent;
 		      NodeMap(const SubDigraphBase<DGR, NF, AF, ch>& adaptor)
 		        : Parent(adaptor) {}
 		      NodeMap(const SubDigraphBase<DGR, NF, AF, ch>& 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, ch>,
 			      LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, ArcMap<V>)> {
 		      typedef SubMapExtender<SubDigraphBase<DGR, NF, AF, ch>,
 		        LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, ArcMap<V>)> Parent;
 		    public:
 		      typedef V Value;
 		      typedef SubMapExtender<SubDigraphBase<DGR, NF, AF, ch>,
 		        LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, ArcMap<V>)> Parent;
 		      ArcMap(const SubDigraphBase<DGR, NF, AF, ch>& adaptor)
 		        : Parent(adaptor) {}
 		      ArcMap(const SubDigraphBase<DGR, NF, AF, ch>& 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 DGR, typename NF, typename AF>
 		  class SubDigraphBase<DGR, NF, AF, false>
 		    : public DigraphAdaptorBase<DGR> {
 		    typedef DigraphAdaptorBase<DGR> Parent;
 		  public:
 		    typedef DGR Digraph;
 		    typedef NF NodeFilterMap;
 		    typedef AF ArcFilterMap;
 		    typedef SubDigraphBase Adaptor;
 		    typedef DigraphAdaptorBase<Digraph> Parent;
 		  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]) Parent::next(i);
+		    }
 		    void firstIn(Arc& i, const Node& n) const {
 		      Parent::firstIn(i, n);
 		      while (i!=INVALID && !(*_arc_filter)[i]) Parent::nextIn(i);
+		    }
 		    void firstOut(Arc& i, const Node& n) const {
 		      Parent::firstOut(i, n);
 		      while (i!=INVALID && !(*_arc_filter)[i]) Parent::nextOut(i);
+		    }
 		    void next(Node& i) const {
 		      Parent::next(i);
 		      while (i!=INVALID && !(*_node_filter)[i]) Parent::next(i);
+		    }
 		    void next(Arc& i) const {
 		      Parent::next(i);
 		      while (i!=INVALID && !(*_arc_filter)[i]) Parent::next(i);
+		    }
 		    void nextIn(Arc& i) const {
 		      Parent::nextIn(i);
 		      while (i!=INVALID && !(*_arc_filter)[i]) Parent::nextIn(i);
+		    }
 		    void nextOut(Arc& i) const {
 		      Parent::nextOut(i);
 		      while (i!=INVALID && !(*_arc_filter)[i]) Parent::nextOut(i);
+		    }
 		    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;
 		      typedef SubMapExtender<SubDigraphBase<DGR, NF, AF, false>,
 		        LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, NodeMap<V>)> Parent;
 		      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;
 		      typedef SubMapExtender<SubDigraphBase<DGR, NF, AF, false>,
 		          LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, ArcMap<V>)> Parent;
 		      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.
 		  ///
 		  /// \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.
 		    /// It is the same as \ref status() "status(n, true)".
 		    void enable(const Node& n) const { Parent::status(n, true); }
 		    /// \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 SubDigraph adaptor
 		  ///
 		  /// This function just returns a read-only \ref SubDigraph adaptor.
 		  /// \ingroup graph_adaptors
 		  /// \relates SubDigraph
 		  template<typename DGR, typename NF, typename AF>
 		  SubDigraph<const DGR, NF, AF>
 		  subDigraph(const DGR& digraph,
 		             NF& node_filter, AF& arc_filter) {
 		    return SubDigraph<const DGR, NF, AF>
 		      (digraph, node_filter, arc_filter);
+		  }
 		  template<typename DGR, typename NF, typename AF>
 		  SubDigraph<const DGR, const NF, AF>
 		  subDigraph(const DGR& digraph,
 		             const NF& node_filter, AF& arc_filter) {
 		    return SubDigraph<const DGR, const NF, AF>
 		      (digraph, node_filter, arc_filter);
+		  }
 		  template<typename DGR, typename NF, typename AF>
 		  SubDigraph<const DGR, NF, const AF>
 		  subDigraph(const DGR& digraph,
 		             NF& node_filter, const AF& arc_filter) {
 		    return SubDigraph<const DGR, NF, const AF>
 		      (digraph, node_filter, arc_filter);
+		  }
 		  template<typename DGR, typename NF, typename AF>
 		  SubDigraph<const DGR, const NF, const AF>
 		  subDigraph(const DGR& digraph,
 		             const NF& node_filter, const AF& arc_filter) {
 		    return SubDigraph<const DGR, const NF, const AF>
 		      (digraph, node_filter, arc_filter);
+		  }
 		  template <typename GR, typename NF, typename EF, bool ch = true>
 		  class SubGraphBase : public GraphAdaptorBase<GR> {
 		    typedef GraphAdaptorBase<GR> Parent;
 		  public:
 		    typedef GR Graph;
 		    typedef NF NodeFilterMap;
 		    typedef EF EdgeFilterMap;
 		    typedef SubGraphBase Adaptor;
 		    typedef GraphAdaptorBase<GR> Parent;
 		  protected:
 		    NF* _node_filter;
 		    EF* _edge_filter;
 		    SubGraphBase()
 		      : Parent(), _node_filter(0), _edge_filter(0) { }
 		    void initialize(GR& graph, NF& node_filter, EF& edge_filter) {
 		      Parent::initialize(graph);
 		      _node_filter = &node_filter;
 		      _edge_filter = &edge_filter;
+		    }
 		  public:
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    typedef typename Parent::Edge Edge;
 		    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 && (!(*_edge_filter)[i]
 		                            || !(*_node_filter)[Parent::source(i)]
 		                            || !(*_node_filter)[Parent::target(i)]))
 		        Parent::next(i);
+		    }
 		    void first(Edge& i) const {
 		      Parent::first(i);
 		      while (i!=INVALID && (!(*_edge_filter)[i]
 		                            || !(*_node_filter)[Parent::u(i)]
 		                            || !(*_node_filter)[Parent::v(i)]))
 		        Parent::next(i);
+		    }
 		    void firstIn(Arc& i, const Node& n) const {
 		      Parent::firstIn(i, n);
 		      while (i!=INVALID && (!(*_edge_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 && (!(*_edge_filter)[i]
 		                            || !(*_node_filter)[Parent::target(i)]))
 		        Parent::nextOut(i);
+		    }
 		    void firstInc(Edge& i, bool& d, const Node& n) const {
 		      Parent::firstInc(i, d, n);
 		      while (i!=INVALID && (!(*_edge_filter)[i]
 		                            || !(*_node_filter)[Parent::u(i)]
 		                            || !(*_node_filter)[Parent::v(i)]))
 		        Parent::nextInc(i, d);
+		    }
 		    void next(Node& i) const {
 		      Parent::next(i);
 		      while (i!=INVALID && !(*_node_filter)[i]) Parent::next(i);
+		    }
 		    void next(Arc& i) const {
 		      Parent::next(i);
 		      while (i!=INVALID && (!(*_edge_filter)[i]
 		                            || !(*_node_filter)[Parent::source(i)]
 		                            || !(*_node_filter)[Parent::target(i)]))
 		        Parent::next(i);
+		    }
 		    void next(Edge& i) const {
 		      Parent::next(i);
 		      while (i!=INVALID && (!(*_edge_filter)[i]
 		                            || !(*_node_filter)[Parent::u(i)]
 		                            || !(*_node_filter)[Parent::v(i)]))
 		        Parent::next(i);
+		    }
 		    void nextIn(Arc& i) const {
 		      Parent::nextIn(i);
 		      while (i!=INVALID && (!(*_edge_filter)[i]
 		                            || !(*_node_filter)[Parent::source(i)]))
 		        Parent::nextIn(i);
+		    }
 		    void nextOut(Arc& i) const {
 		      Parent::nextOut(i);
 		      while (i!=INVALID && (!(*_edge_filter)[i]
 		                            || !(*_node_filter)[Parent::target(i)]))
 		        Parent::nextOut(i);
+		    }
 		    void nextInc(Edge& i, bool& d) const {
 		      Parent::nextInc(i, d);
 		      while (i!=INVALID && (!(*_edge_filter)[i]
 		                            || !(*_node_filter)[Parent::u(i)]
 		                            || !(*_node_filter)[Parent::v(i)]))
 		        Parent::nextInc(i, d);
+		    }
 		    void status(const Node& n, bool v) const { _node_filter->set(n, v); }
 		    void status(const Edge& e, bool v) const { _edge_filter->set(e, v); }
 		    bool status(const Node& n) const { return (*_node_filter)[n]; }
 		    bool status(const Edge& e) const { return (*_edge_filter)[e]; }
 		    typedef False NodeNumTag;
 		    typedef False ArcNumTag;
 		    typedef False EdgeNumTag;
 		    typedef FindArcTagIndicator<Graph> FindArcTag;
 		    Arc findArc(const Node& u, const Node& v,
 		                const Arc& prev = INVALID) const {
 		      if (!(*_node_filter)[u] || !(*_node_filter)[v]) {
 		        return INVALID;
+		      }
 		      Arc arc = Parent::findArc(u, v, prev);
 		      while (arc != INVALID && !(*_edge_filter)[arc]) {
 		        arc = Parent::findArc(u, v, arc);
+		      }
 		      return arc;
+		    }
 		    typedef FindEdgeTagIndicator<Graph> FindEdgeTag;
 		    Edge findEdge(const Node& u, const Node& v,
 		                  const Edge& prev = INVALID) const {
 		      if (!(*_node_filter)[u] || !(*_node_filter)[v]) {
 		        return INVALID;
+		      }
 		      Edge edge = Parent::findEdge(u, v, prev);
 		      while (edge != INVALID && !(*_edge_filter)[edge]) {
 		        edge = Parent::findEdge(u, v, edge);
+		      }
 		      return edge;
+		    }
 		    template <typename V>
 		    class NodeMap
 		      : public SubMapExtender<SubGraphBase<GR, NF, EF, ch>,
 		          LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, NodeMap<V>)> {
 		      typedef SubMapExtender<SubGraphBase<GR, NF, EF, ch>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, NodeMap<V>)> Parent;
 		    public:
 		      typedef V Value;
 		      typedef SubMapExtender<SubGraphBase<GR, NF, EF, ch>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, NodeMap<V>)> Parent;
 		      NodeMap(const SubGraphBase<GR, NF, EF, ch>& adaptor)
 		        : Parent(adaptor) {}
 		      NodeMap(const SubGraphBase<GR, NF, EF, ch>& 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, ch>,
 		          LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, ArcMap<V>)> {
 		      typedef SubMapExtender<SubGraphBase<GR, NF, EF, ch>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, ArcMap<V>)> Parent;
 		    public:
 		      typedef V Value;
 		      typedef SubMapExtender<SubGraphBase<GR, NF, EF, ch>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, ArcMap<V>)> Parent;
 		      ArcMap(const SubGraphBase<GR, NF, EF, ch>& adaptor)
 		        : Parent(adaptor) {}
 		      ArcMap(const SubGraphBase<GR, NF, EF, ch>& 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, ch>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, EdgeMap<V>)> {
 		      typedef SubMapExtender<SubGraphBase<GR, NF, EF, ch>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, EdgeMap<V>)> Parent;
 		    public:
 		      typedef V Value;
 		      typedef SubMapExtender<SubGraphBase<GR, NF, EF, ch>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, EdgeMap<V>)> Parent;
 		      EdgeMap(const SubGraphBase<GR, NF, EF, ch>& adaptor)
 		        : Parent(adaptor) {}
 		      EdgeMap(const SubGraphBase<GR, NF, EF, ch>& 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;
+		      }
 		    };
 		  };
 		  template <typename GR, typename NF, typename EF>
 		  class SubGraphBase<GR, NF, EF, false>
 		    : public GraphAdaptorBase<GR> {
 		    typedef GraphAdaptorBase<GR> Parent;
 		  public:
 		    typedef GR Graph;
 		    typedef NF NodeFilterMap;
 		    typedef EF EdgeFilterMap;
 		    typedef SubGraphBase Adaptor;
 		    typedef GraphAdaptorBase<GR> Parent;
 		  protected:
 		    NF* _node_filter;
 		    EF* _edge_filter;
 		    SubGraphBase()
 			  : Parent(), _node_filter(0), _edge_filter(0) { }
 		    void initialize(GR& graph, NF& node_filter, EF& edge_filter) {
 		      Parent::initialize(graph);
 		      _node_filter = &node_filter;
 		      _edge_filter = &edge_filter;
+		    }
 		  public:
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    typedef typename Parent::Edge Edge;
 		    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 && !(*_edge_filter)[i]) Parent::next(i);
+		    }
 		    void first(Edge& i) const {
 		      Parent::first(i);
 		      while (i!=INVALID && !(*_edge_filter)[i]) Parent::next(i);
+		    }
 		    void firstIn(Arc& i, const Node& n) const {
 		      Parent::firstIn(i, n);
 		      while (i!=INVALID && !(*_edge_filter)[i]) Parent::nextIn(i);
+		    }
 		    void firstOut(Arc& i, const Node& n) const {
 		      Parent::firstOut(i, n);
 		      while (i!=INVALID && !(*_edge_filter)[i]) Parent::nextOut(i);
+		    }
 		    void firstInc(Edge& i, bool& d, const Node& n) const {
 		      Parent::firstInc(i, d, n);
 		      while (i!=INVALID && !(*_edge_filter)[i]) Parent::nextInc(i, d);
+		    }
 		    void next(Node& i) const {
 		      Parent::next(i);
 		      while (i!=INVALID && !(*_node_filter)[i]) Parent::next(i);
+		    }
 		    void next(Arc& i) const {
 		      Parent::next(i);
 		      while (i!=INVALID && !(*_edge_filter)[i]) Parent::next(i);
+		    }
 		    void next(Edge& i) const {
 		      Parent::next(i);
 		      while (i!=INVALID && !(*_edge_filter)[i]) Parent::next(i);
+		    }
 		    void nextIn(Arc& i) const {
 		      Parent::nextIn(i);
 		      while (i!=INVALID && !(*_edge_filter)[i]) Parent::nextIn(i);
+		    }
 		    void nextOut(Arc& i) const {
 		      Parent::nextOut(i);
 		      while (i!=INVALID && !(*_edge_filter)[i]) Parent::nextOut(i);
+		    }
 		    void nextInc(Edge& i, bool& d) const {
 		      Parent::nextInc(i, d);
 		      while (i!=INVALID && !(*_edge_filter)[i]) Parent::nextInc(i, d);
+		    }
 		    void status(const Node& n, bool v) const { _node_filter->set(n, v); }
 		    void status(const Edge& e, bool v) const { _edge_filter->set(e, v); }
 		    bool status(const Node& n) const { return (*_node_filter)[n]; }
 		    bool status(const Edge& e) const { return (*_edge_filter)[e]; }
 		    typedef False NodeNumTag;
 		    typedef False ArcNumTag;
 		    typedef False EdgeNumTag;
 		    typedef FindArcTagIndicator<Graph> FindArcTag;
 		    Arc findArc(const Node& u, const Node& v,
 		                const Arc& prev = INVALID) const {
 		      Arc arc = Parent::findArc(u, v, prev);
 		      while (arc != INVALID && !(*_edge_filter)[arc]) {
 		        arc = Parent::findArc(u, v, arc);
+		      }
 		      return arc;
+		    }
 		    typedef FindEdgeTagIndicator<Graph> FindEdgeTag;
 		    Edge findEdge(const Node& u, const Node& v,
 		                  const Edge& prev = INVALID) const {
 		      Edge edge = Parent::findEdge(u, v, prev);
 		      while (edge != INVALID && !(*_edge_filter)[edge]) {
 		        edge = Parent::findEdge(u, v, edge);
+		      }
 		      return edge;
+		    }
 		    template <typename V>
 		    class NodeMap
 		      : public SubMapExtender<SubGraphBase<GR, NF, EF, false>,
 		          LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, NodeMap<V>)> {
 		      typedef SubMapExtender<SubGraphBase<GR, NF, EF, false>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, NodeMap<V>)> Parent;
 		    public:
 		      typedef V Value;
 		      typedef SubMapExtender<SubGraphBase<GR, NF, EF, false>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, NodeMap<V>)> Parent;
 		      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;
 		      typedef SubMapExtender<SubGraphBase<GR, NF, EF, false>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, ArcMap<V>)> Parent;
 		      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;
 		      typedef SubMapExtender<SubGraphBase<GR, NF, EF, false>,
 				  LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, EdgeMap<V>)> Parent;
 		      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.
 		  ///
 		  /// \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.
 		  ///
 		  /// \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
 		  public:
 		    typedef GR Digraph;
 		    typedef NF NodeFilterMap;
 		    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> > {
 		  public:
 		    typedef GR Graph;
 		    typedef NF NodeFilterMap;
 		    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.
 		  ///
 		  /// \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 DigraphAdaptorExtender<
 		      SubDigraphBase<DGR, ConstMap<typename DGR::Node, Const<bool, true> >,
 		                     AF, false> > Parent;
 		    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.
 		  ///
 		  /// \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 GraphAdaptorExtender<
 		      SubGraphBase<GR, ConstMap<typename GR::Node, Const<bool, true > >,
 		                   EF, false> > Parent;
 		    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);
+		  }
 		  template <typename DGR>
 		  class UndirectorBase {
 		  public:
 		    typedef DGR Digraph;
 		    typedef UndirectorBase Adaptor;
 		    typedef True UndirectedTag;
 		    typedef typename Digraph::Arc Edge;
 		    typedef typename Digraph::Node Node;
 		    class Arc : public Edge {
 		      friend class UndirectorBase;
 		    protected:
 		      bool _forward;
 		      Arc(const Edge& edge, bool forward) :
 		        Edge(edge), _forward(forward) {}
 		    public:
 		      Arc() {}
 		      Arc(Invalid) : Edge(INVALID), _forward(true) {}
 		      bool operator==(const Arc &other) const {
 		        return _forward == other._forward &&
 		          static_cast<const Edge&>(*this) == static_cast<const Edge&>(other);
+		      }
 		      bool operator!=(const Arc &other) const {
 		        return _forward != other._forward ||
 		          static_cast<const Edge&>(*this) != static_cast<const Edge&>(other);
+		      }
 		      bool operator<(const Arc &other) const {
 		        return _forward < other._forward ||
 		          (_forward == other._forward &&
 		           static_cast<const Edge&>(*this) < static_cast<const Edge&>(other));
+		      }
 		    };
 		    void first(Node& n) const {
 		      _digraph->first(n);
+		    }
 		    void next(Node& n) const {
 		      _digraph->next(n);
+		    }
 		    void first(Arc& a) const {
 		      _digraph->first(a);
 		      a._forward = true;
+		    }
 		    void next(Arc& a) const {
 		      if (a._forward) {
 		        a._forward = false;
 		      } else {
 		        _digraph->next(a);
 		        a._forward = true;
+		      }
+		    }
 		    void first(Edge& e) const {
 		      _digraph->first(e);
+		    }
 		    void next(Edge& e) const {
 		      _digraph->next(e);
+		    }
 		    void firstOut(Arc& a, const Node& n) const {
 		      _digraph->firstIn(a, n);
 		      if( static_cast<const Edge&>(a) != INVALID ) {
 		        a._forward = false;
 		      } else {
 		        _digraph->firstOut(a, n);
 		        a._forward = true;
+		      }
+		    }
 		    void nextOut(Arc &a) const {
 		      if (!a._forward) {
 		        Node n = _digraph->target(a);
 		        _digraph->nextIn(a);
 		        if (static_cast<const Edge&>(a) == INVALID ) {
 		          _digraph->firstOut(a, n);
 		          a._forward = true;
+		        }
+		      }
 		      else {
 		        _digraph->nextOut(a);
+		      }
+		    }
 		    void firstIn(Arc &a, const Node &n) const {
 		      _digraph->firstOut(a, n);
 		      if (static_cast<const Edge&>(a) != INVALID ) {
 		        a._forward = false;
 		      } else {
 		        _digraph->firstIn(a, n);
 		        a._forward = true;
+		      }
+		    }
 		    void nextIn(Arc &a) const {
 		      if (!a._forward) {
 		        Node n = _digraph->source(a);
 		        _digraph->nextOut(a);
 		        if( static_cast<const Edge&>(a) == INVALID ) {
 		          _digraph->firstIn(a, n);
 		          a._forward = true;
+		        }
+		      }
 		      else {
 		        _digraph->nextIn(a);
+		      }
+		    }
 		    void firstInc(Edge &e, bool &d, const Node &n) const {
 		      d = true;
 		      _digraph->firstOut(e, n);
 		      if (e != INVALID) return;
 		      d = false;
 		      _digraph->firstIn(e, n);
+		    }
 		    void nextInc(Edge &e, bool &d) const {
 		      if (d) {
 		        Node s = _digraph->source(e);
 		        _digraph->nextOut(e);
 		        if (e != INVALID) return;
 		        d = false;
 		        _digraph->firstIn(e, s);
 		      } else {
 		        _digraph->nextIn(e);
+		      }
+		    }
 		    Node u(const Edge& e) const {
 		      return _digraph->source(e);
+		    }
 		    Node v(const Edge& e) const {
 		      return _digraph->target(e);
+		    }
 		    Node source(const Arc &a) const {
 		      return a._forward ? _digraph->source(a) : _digraph->target(a);
+		    }
 		    Node target(const Arc &a) const {
 		      return a._forward ? _digraph->target(a) : _digraph->source(a);
+		    }
 		    static Arc direct(const Edge &e, bool d) {
 		      return Arc(e, d);
+		    }
 		    Arc direct(const Edge &e, const Node& n) const {
 		      return Arc(e, _digraph->source(e) == n);
+		    }
 		    static bool direction(const Arc &a) { return a._forward; }
 		    Node nodeFromId(int ix) const { return _digraph->nodeFromId(ix); }
 		    Arc arcFromId(int ix) const {
 		      return direct(_digraph->arcFromId(ix >> 1), bool(ix & 1));
+		    }
 		    Edge edgeFromId(int ix) const { return _digraph->arcFromId(ix); }
 		    int id(const Node &n) const { return _digraph->id(n); }
 		    int id(const Arc &a) const {
 		      return  (_digraph->id(a) << 1) | (a._forward ? 1 : 0);
+		    }
 		    int id(const Edge &e) const { return _digraph->id(e); }
 		    int maxNodeId() const { return _digraph->maxNodeId(); }
 		    int maxArcId() const { return (_digraph->maxArcId() << 1) | 1; }
 		    int maxEdgeId() const { return _digraph->maxArcId(); }
 		    Node addNode() { return _digraph->addNode(); }
 		    Edge addEdge(const Node& u, const Node& v) {
 		      return _digraph->addArc(u, v);
+		    }
 		    void erase(const Node& i) { _digraph->erase(i); }
 		    void erase(const Edge& i) { _digraph->erase(i); }
 		    void clear() { _digraph->clear(); }
 		    typedef NodeNumTagIndicator<Digraph> NodeNumTag;
 		    int nodeNum() const { return _digraph->nodeNum(); }
 		    typedef ArcNumTagIndicator<Digraph> ArcNumTag;
 		    int arcNum() const { return 2 * _digraph->arcNum(); }
 		    typedef ArcNumTag EdgeNumTag;
 		    int edgeNum() const { return _digraph->arcNum(); }
 		    typedef FindArcTagIndicator<Digraph> FindArcTag;
 		    Arc findArc(Node s, Node t, Arc p = INVALID) const {
 		      if (p == INVALID) {
 		        Edge arc = _digraph->findArc(s, t);
 		        if (arc != INVALID) return direct(arc, true);
 		        arc = _digraph->findArc(t, s);
 		        if (arc != INVALID) return direct(arc, false);
 		      } else if (direction(p)) {
 		        Edge arc = _digraph->findArc(s, t, p);
 		        if (arc != INVALID) return direct(arc, true);
 		        arc = _digraph->findArc(t, s);
 		        if (arc != INVALID) return direct(arc, false);
 		      } else {
 		        Edge arc = _digraph->findArc(t, s, p);
 		        if (arc != INVALID) return direct(arc, false);
+		      }
 		      return INVALID;
+		    }
 		    typedef FindArcTag FindEdgeTag;
 		    Edge findEdge(Node s, Node t, Edge p = INVALID) const {
 		      if (s != t) {
 		        if (p == INVALID) {
 		          Edge arc = _digraph->findArc(s, t);
 		          if (arc != INVALID) return arc;
 		          arc = _digraph->findArc(t, s);
 		          if (arc != INVALID) return arc;
 		        } else if (_digraph->source(p) == s) {
 		          Edge arc = _digraph->findArc(s, t, p);
 		          if (arc != INVALID) return arc;
 		          arc = _digraph->findArc(t, s);
 		          if (arc != INVALID) return arc;
 		        } else {
 		          Edge arc = _digraph->findArc(t, s, p);
 		          if (arc != INVALID) return arc;
+		        }
 		      } else {
 		        return _digraph->findArc(s, t, p);
+		      }
 		      return INVALID;
+		    }
 		  private:
 		    template <typename V>
 		    class ArcMapBase {
 		    private:
 		      typedef typename DGR::template ArcMap<V> MapImpl;
 		    public:
 		      typedef typename MapTraits<MapImpl>::ReferenceMapTag ReferenceMapTag;
 		      typedef V Value;
 		      typedef Arc Key;
 		      typedef typename MapTraits<MapImpl>::ConstReturnValue ConstReturnValue;
 		      typedef typename MapTraits<MapImpl>::ReturnValue ReturnValue;
 		      typedef typename MapTraits<MapImpl>::ConstReturnValue ConstReference;
 		      typedef typename MapTraits<MapImpl>::ReturnValue Reference;
 		      ArcMapBase(const UndirectorBase<DGR>& adaptor) :
 		        _forward(*adaptor._digraph), _backward(*adaptor._digraph) {}
 		      ArcMapBase(const UndirectorBase<DGR>& adaptor, const V& value)
 		        : _forward(*adaptor._digraph, value),
 		          _backward(*adaptor._digraph, value) {}
 		      void set(const Arc& a, const V& value) {
 		        if (direction(a)) {
 		          _forward.set(a, value);
 		        } else {
 		          _backward.set(a, value);
+		        }
+		      }
 		      ConstReturnValue operator[](const Arc& a) const {
 		        if (direction(a)) {
 		          return _forward[a];
 		        } else {
 		          return _backward[a];
+		        }
+		      }
 		      ReturnValue operator[](const Arc& a) {
 		        if (direction(a)) {
 		          return _forward[a];
 		        } else {
 		          return _backward[a];
+		        }
+		      }
 		    protected:
 		      MapImpl _forward, _backward;
 		    };
 		  public:
 		    template <typename V>
 		    class NodeMap : public DGR::template NodeMap<V> {
 		      typedef typename DGR::template NodeMap<V> Parent;
 		    public:
 		      typedef V Value;
 		      typedef typename DGR::template NodeMap<Value> Parent;
 		      explicit NodeMap(const UndirectorBase<DGR>& adaptor)
 		        : Parent(*adaptor._digraph) {}
 		      NodeMap(const UndirectorBase<DGR>& adaptor, const V& value)
 		        : Parent(*adaptor._digraph, 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<UndirectorBase<DGR>, ArcMapBase<V> >
+		    {
 		      : public SubMapExtender<UndirectorBase<DGR>, ArcMapBase<V> > {
 		      typedef SubMapExtender<UndirectorBase<DGR>, ArcMapBase<V> > Parent;
 		    public:
 		      typedef V Value;
 		      typedef SubMapExtender<Adaptor, ArcMapBase<V> > Parent;
 		      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;
 		      typedef typename Digraph::template ArcMap<V> Parent;
 		      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.
 		  ///
 		  /// \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;
 		    typedef GraphAdaptorExtender<UndirectorBase<DGR> > Parent;
 		  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.
 		    template <typename FW, typename BK>
 		    static CombinedArcMap<FW, BK>
 		    combinedArcMap(FW& forward, BK& backward) {
 		      return CombinedArcMap<FW, BK>(forward, backward);
+		    }
 		    template <typename FW, typename BK>
 		    static CombinedArcMap<const FW, BK>
 		    combinedArcMap(const FW& forward, BK& backward) {
 		      return CombinedArcMap<const FW, BK>(forward, backward);
+		    }
 		    template <typename FW, typename BK>
 		    static CombinedArcMap<FW, const BK>
 		    combinedArcMap(FW& forward, const BK& backward) {
 		      return CombinedArcMap<FW, const BK>(forward, backward);
+		    }
 		    template <typename FW, typename BK>
 		    static CombinedArcMap<const FW, const BK>
 		    combinedArcMap(const FW& forward, const BK& backward) {
 		      return CombinedArcMap<const FW, const BK>(forward, backward);
+		    }
 		  };
 		  /// \brief Returns a read-only Undirector adaptor
 		  ///
 		  /// This function just returns a read-only \ref Undirector adaptor.
 		  /// \ingroup graph_adaptors
 		  /// \relates Undirector
 		  template<typename DGR>
 		  Undirector<const DGR> undirector(const DGR& digraph) {
 		    return Undirector<const DGR>(digraph);
+		  }
 		  template <typename GR, typename DM>
 		  class OrienterBase {
 		  public:
 		    typedef GR Graph;
 		    typedef DM DirectionMap;
 		    typedef typename GR::Node Node;
 		    typedef typename GR::Edge Arc;
 		    void reverseArc(const Arc& arc) {
 		      _direction->set(arc, !(*_direction)[arc]);
+		    }
 		    void first(Node& i) const { _graph->first(i); }
 		    void first(Arc& i) const { _graph->first(i); }
 		    void firstIn(Arc& i, const Node& n) const {
 		      bool d = true;
 		      _graph->firstInc(i, d, n);
 		      while (i != INVALID && d == (*_direction)[i]) _graph->nextInc(i, d);
+		    }
 		    void firstOut(Arc& i, const Node& n ) const {
 		      bool d = true;
 		      _graph->firstInc(i, d, n);
 		      while (i != INVALID && d != (*_direction)[i]) _graph->nextInc(i, d);
+		    }
 		    void next(Node& i) const { _graph->next(i); }
 		    void next(Arc& i) const { _graph->next(i); }
 		    void nextIn(Arc& i) const {
 		      bool d = !(*_direction)[i];
 		      _graph->nextInc(i, d);
 		      while (i != INVALID && d == (*_direction)[i]) _graph->nextInc(i, d);
+		    }
 		    void nextOut(Arc& i) const {
 		      bool d = (*_direction)[i];
 		      _graph->nextInc(i, d);
 		      while (i != INVALID && d != (*_direction)[i]) _graph->nextInc(i, d);
+		    }
 		    Node source(const Arc& e) const {
 		      return (*_direction)[e] ? _graph->u(e) : _graph->v(e);
+		    }
 		    Node target(const Arc& e) const {
 		      return (*_direction)[e] ? _graph->v(e) : _graph->u(e);
+		    }
 		    typedef NodeNumTagIndicator<Graph> NodeNumTag;
 		    int nodeNum() const { return _graph->nodeNum(); }
 		    typedef EdgeNumTagIndicator<Graph> ArcNumTag;
 		    int arcNum() const { return _graph->edgeNum(); }
 		    typedef FindEdgeTagIndicator<Graph> FindArcTag;
 		    Arc findArc(const Node& u, const Node& v,
 		                const Arc& prev = INVALID) const {
 		      Arc arc = _graph->findEdge(u, v, prev);
 		      while (arc != INVALID && source(arc) != u) {
 		        arc = _graph->findEdge(u, v, arc);
+		      }
 		      return arc;
+		    }
 		    Node addNode() {
 		      return Node(_graph->addNode());
+		    }
 		    Arc addArc(const Node& u, const Node& v) {
 		      Arc arc = _graph->addEdge(u, v);
 		      _direction->set(arc, _graph->u(arc) == u);
 		      return arc;
+		    }
 		    void erase(const Node& i) { _graph->erase(i); }
 		    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:
 		      typedef typename GR::template NodeMap<V> Parent;
 		      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:
 		      typedef typename Graph::template EdgeMap<V> Parent;
 		      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.
 		  ///
 		  /// \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 DigraphAdaptorExtender<OrienterBase<GR, DM> > Parent;
 		    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.
 		  ///
 		  /// \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;
 		    /// \brief Returns the residual capacity of the given arc.
 		    ///
 		    /// Returns the residual capacity of the given arc.
 		    Value residualCapacity(const Arc& a) const {
 		      if (Undirected::direction(a)) {
 		        return (*_capacity)[a] - (*_flow)[a];
 		      } else {
 		        return (*_flow)[a];
+		      }
+		    }
 		    /// \brief Augments on the given arc in the residual digraph.
 		    ///
 		    /// Augments on the given arc in the residual digraph. It increases
 		    /// or decreases the flow value on the original arc according to the
 		    /// direction of the residual arc.
 		    void augment(const Arc& a, const Value& v) const {
 		      if (Undirected::direction(a)) {
 		        _flow->set(a, (*_flow)[a] + v);
 		      } else {
 		        _flow->set(a, (*_flow)[a] - v);
+		      }
+		    }
 		    /// \brief Returns \c true if the given residual arc is a forward arc.
 		    ///
 		    /// Returns \c true if the given residual arc has the same orientation
 		    /// as the original arc, i.e. it is a so called forward arc.
 		    static bool forward(const Arc& a) {
 		      return Undirected::direction(a);
+		    }
 		    /// \brief Returns \c true if the given residual arc is a backward arc.
 		    ///
 		    /// Returns \c true if the given residual arc has the opposite orientation
 		    /// than the original arc, i.e. it is a so called backward arc.
 		    static bool backward(const Arc& a) {
 		      return !Undirected::direction(a);
+		    }
 		    /// \brief Returns the forward oriented residual arc.
 		    ///
 		    /// Returns the forward oriented residual arc related to the given
 		    /// arc of the underlying digraph.
 		    static Arc forward(const typename Digraph::Arc& a) {
 		      return Undirected::direct(a, true);
+		    }
 		    /// \brief Returns the backward oriented residual arc.
 		    ///
 		    /// Returns the backward oriented residual arc related to the given
 		    /// arc of the underlying digraph.
 		    static Arc backward(const typename Digraph::Arc& a) {
 		      return Undirected::direct(a, false);
+		    }
 		    /// \brief Residual capacity map.
 		    ///
 		    /// This map adaptor class can be used for obtaining the residual
 		    /// capacities as an arc map of the residual digraph.
 		    /// Its value type is inherited from the capacity map.
 		    class ResidualCapacity {
 		    protected:
 		      const Adaptor* _adaptor;
 		    public:
 		      /// The key type of the map
 		      typedef Arc Key;
 		      /// The value type of the map
 		      typedef typename CapacityMap::Value Value;
 		      /// Constructor
 		      ResidualCapacity(const ResidualDigraph<DGR, CM, FM, TL>& adaptor)
 		        : _adaptor(&adaptor) {}
 		      /// Returns the value associated with the given residual arc
 		      Value operator[](const Arc& a) const {
 		        return _adaptor->residualCapacity(a);
+		      }
 		    };
 		    /// \brief Returns a residual capacity map
 		    ///
 		    /// This function just returns a residual capacity map.
 		    ResidualCapacity residualCapacity() const {
 		      return ResidualCapacity(*this);
+		    }
 		  };
 		  /// \brief Returns a (read-only) Residual adaptor
 		  ///
 		  /// This function just returns a (read-only) \ref ResidualDigraph adaptor.
 		  /// \ingroup graph_adaptors
 		  /// \relates ResidualDigraph
 		    template<typename DGR, typename CM, typename FM>
 		  ResidualDigraph<DGR, CM, FM>
 		  residualDigraph(const DGR& digraph, const CM& capacity_map, FM& flow_map) {
 		    return ResidualDigraph<DGR, CM, FM> (digraph, capacity_map, flow_map);
+		  }
 		  template <typename DGR>
 		  class SplitNodesBase {
 		    typedef DigraphAdaptorBase<const DGR> Parent;
 		  public:
 		    typedef DGR Digraph;
 		    typedef DigraphAdaptorBase<const DGR> Parent;
 		    typedef SplitNodesBase Adaptor;
 		    typedef typename DGR::Node DigraphNode;
 		    typedef typename DGR::Arc DigraphArc;
 		    class Node;
 		    class Arc;
 		  private:
 		    template <typename T> class NodeMapBase;
 		    template <typename T> class ArcMapBase;
 		  public:
 		    class Node : public DigraphNode {
 		      friend class SplitNodesBase;
 		      template <typename T> friend class NodeMapBase;
 		    private:
 		      bool _in;
 		      Node(DigraphNode node, bool in)
 		        : DigraphNode(node), _in(in) {}
 		    public:
 		      Node() {}
 		      Node(Invalid) : DigraphNode(INVALID), _in(true) {}
 		      bool operator==(const Node& node) const {
 		        return DigraphNode::operator==(node) && _in == node._in;
+		      }
 		      bool operator!=(const Node& node) const {
 		        return !(*this == node);
+		      }
 		      bool operator<(const Node& node) const {
 		        return DigraphNode::operator<(node) ||
 		          (DigraphNode::operator==(node) && _in < node._in);
+		      }
 		    };
 		    class Arc {
 		      friend class SplitNodesBase;
 		      template <typename T> friend class ArcMapBase;
 		    private:
 		      typedef BiVariant<DigraphArc, DigraphNode> ArcImpl;
 		      explicit Arc(const DigraphArc& arc) : _item(arc) {}
 		      explicit Arc(const DigraphNode& node) : _item(node) {}
 		      ArcImpl _item;
 		    public:
 		      Arc() {}
 		      Arc(Invalid) : _item(DigraphArc(INVALID)) {}
 		      bool operator==(const Arc& arc) const {
 		        if (_item.firstState()) {
 		          if (arc._item.firstState()) {
 		            return _item.first() == arc._item.first();
+		          }
 		        } else {
 		          if (arc._item.secondState()) {
 		            return _item.second() == arc._item.second();
+		          }
+		        }
 		        return false;
+		      }
 		      bool operator!=(const Arc& arc) const {
 		        return !(*this == arc);
+		      }
 		      bool operator<(const Arc& arc) const {
 		        if (_item.firstState()) {
 		          if (arc._item.firstState()) {
 		            return _item.first() < arc._item.first();
+		          }
 		          return false;
 		        } else {
 		          if (arc._item.secondState()) {
 		            return _item.second() < arc._item.second();
+		          }
 		          return true;
+		        }
+		      }
 		      operator DigraphArc() const { return _item.first(); }
 		      operator DigraphNode() const { return _item.second(); }
 		    };
 		    void first(Node& n) const {
 		      _digraph->first(n);
 		      n._in = true;
+		    }
 		    void next(Node& n) const {
 		      if (n._in) {
 		        n._in = false;
 		      } else {
 		        n._in = true;
 		        _digraph->next(n);
+		      }
+		    }
 		    void first(Arc& e) const {
 		      e._item.setSecond();
 		      _digraph->first(e._item.second());
 		      if (e._item.second() == INVALID) {
 		        e._item.setFirst();
 		        _digraph->first(e._item.first());
+		      }
+		    }
 		    void next(Arc& e) const {
 		      if (e._item.secondState()) {
 		        _digraph->next(e._item.second());
 		        if (e._item.second() == INVALID) {
 		          e._item.setFirst();
 		          _digraph->first(e._item.first());
+		        }
 		      } else {
 		        _digraph->next(e._item.first());
+		      }
+		    }
 		    void firstOut(Arc& e, const Node& n) const {
 		      if (n._in) {
 		        e._item.setSecond(n);
 		      } else {
 		        e._item.setFirst();
 		        _digraph->firstOut(e._item.first(), n);
+		      }
+		    }
 		    void nextOut(Arc& e) const {
 		      if (!e._item.firstState()) {
 		        e._item.setFirst(INVALID);
 		      } else {
 		        _digraph->nextOut(e._item.first());
+		      }
+		    }
 		    void firstIn(Arc& e, const Node& n) const {
 		      if (!n._in) {
 		        e._item.setSecond(n);
 		      } else {
 		        e._item.setFirst();
 		        _digraph->firstIn(e._item.first(), n);
+		      }
+		    }
 		    void nextIn(Arc& e) const {
 		      if (!e._item.firstState()) {
 		        e._item.setFirst(INVALID);
 		      } else {
 		        _digraph->nextIn(e._item.first());
+		      }
+		    }
 		    Node source(const Arc& e) const {
 		      if (e._item.firstState()) {
 		        return Node(_digraph->source(e._item.first()), false);
 		      } else {
 		        return Node(e._item.second(), true);
+		      }
+		    }
 		    Node target(const Arc& e) const {
 		      if (e._item.firstState()) {
 		        return Node(_digraph->target(e._item.first()), true);
 		      } else {
 		        return Node(e._item.second(), false);
+		      }
+		    }
 		    int id(const Node& n) const {
 		      return (_digraph->id(n) << 1) | (n._in ? 0 : 1);
+		    }
 		    Node nodeFromId(int ix) const {
 		      return Node(_digraph->nodeFromId(ix >> 1), (ix & 1) == 0);
+		    }
 		    int maxNodeId() const {
 		      return 2 * _digraph->maxNodeId() + 1;
+		    }
 		    int id(const Arc& e) const {
 		      if (e._item.firstState()) {
 		        return _digraph->id(e._item.first()) << 1;
 		      } else {
 		        return (_digraph->id(e._item.second()) << 1) | 1;
+		      }
+		    }
 		    Arc arcFromId(int ix) const {
 		      if ((ix & 1) == 0) {
 		        return Arc(_digraph->arcFromId(ix >> 1));
 		      } else {
 		        return Arc(_digraph->nodeFromId(ix >> 1));
+		      }
+		    }
 		    int maxArcId() const {
 		      return std::max(_digraph->maxNodeId() << 1,
 		                      (_digraph->maxArcId() << 1) | 1);
+		    }
 		    static bool inNode(const Node& n) {
 		      return n._in;
+		    }
 		    static bool outNode(const Node& n) {
 		      return !n._in;
+		    }
 		    static bool origArc(const Arc& e) {
 		      return e._item.firstState();
+		    }
 		    static bool bindArc(const Arc& e) {
 		      return e._item.secondState();
+		    }
 		    static Node inNode(const DigraphNode& n) {
 		      return Node(n, true);
+		    }
 		    static Node outNode(const DigraphNode& n) {
 		      return Node(n, false);
+		    }
 		    static Arc arc(const DigraphNode& n) {
 		      return Arc(n);
+		    }
 		    static Arc arc(const DigraphArc& e) {
 		      return Arc(e);
+		    }
 		    typedef True NodeNumTag;
 		    int nodeNum() const {
 		      return  2 * countNodes(*_digraph);
+		    }
 		    typedef True ArcNumTag;
 		    int arcNum() const {
 		      return countArcs(*_digraph) + countNodes(*_digraph);
+		    }
 		    typedef True FindArcTag;
 		    Arc findArc(const Node& u, const Node& v,
 		                const Arc& prev = INVALID) const {
 		      if (inNode(u) && outNode(v)) {
 		        if (static_cast<const DigraphNode&>(u) ==
 		            static_cast<const DigraphNode&>(v) && prev == INVALID) {
 		          return Arc(u);
+		        }
+		      }
 		      else if (outNode(u) && inNode(v)) {
 		        return Arc(::lemon::findArc(*_digraph, u, v, prev));
+		      }
 		      return INVALID;
+		    }
 		  private:
 		    template <typename V>
 		    class NodeMapBase
 		      : public MapTraits<typename Parent::template NodeMap<V> > {
 		      typedef typename Parent::template NodeMap<V> NodeImpl;
 		    public:
 		      typedef Node Key;
 		      typedef V Value;
 		      typedef typename MapTraits<NodeImpl>::ReferenceMapTag ReferenceMapTag;
 		      typedef typename MapTraits<NodeImpl>::ReturnValue ReturnValue;
 		      typedef typename MapTraits<NodeImpl>::ConstReturnValue ConstReturnValue;
 		      typedef typename MapTraits<NodeImpl>::ReturnValue Reference;
 		      typedef typename MapTraits<NodeImpl>::ConstReturnValue ConstReference;
 		      NodeMapBase(const SplitNodesBase<DGR>& adaptor)
 		        : _in_map(*adaptor._digraph), _out_map(*adaptor._digraph) {}
 		      NodeMapBase(const SplitNodesBase<DGR>& adaptor, const V& value)
 		        : _in_map(*adaptor._digraph, value),
 		          _out_map(*adaptor._digraph, value) {}
 		      void set(const Node& key, const V& val) {
 		        if (SplitNodesBase<DGR>::inNode(key)) { _in_map.set(key, val); }
 		        else {_out_map.set(key, val); }
+		      }
 		      ReturnValue operator[](const Node& key) {
 		        if (SplitNodesBase<DGR>::inNode(key)) { return _in_map[key]; }
 		        else { return _out_map[key]; }
+		      }
 		      ConstReturnValue operator[](const Node& key) const {
 		        if (Adaptor::inNode(key)) { return _in_map[key]; }
 		        else { return _out_map[key]; }
+		      }
 		    private:
 		      NodeImpl _in_map, _out_map;
 		    };
 		    template <typename V>
 		    class ArcMapBase
 		      : public MapTraits<typename Parent::template ArcMap<V> > {
 		      typedef typename Parent::template ArcMap<V> ArcImpl;
 		      typedef typename Parent::template NodeMap<V> NodeImpl;
 		    public:
 		      typedef Arc Key;
 		      typedef V Value;
 		      typedef typename MapTraits<ArcImpl>::ReferenceMapTag ReferenceMapTag;
 		      typedef typename MapTraits<ArcImpl>::ReturnValue ReturnValue;
 		      typedef typename MapTraits<ArcImpl>::ConstReturnValue ConstReturnValue;
 		      typedef typename MapTraits<ArcImpl>::ReturnValue Reference;
 		      typedef typename MapTraits<ArcImpl>::ConstReturnValue ConstReference;
 		      ArcMapBase(const SplitNodesBase<DGR>& adaptor)
 		        : _arc_map(*adaptor._digraph), _node_map(*adaptor._digraph) {}
 		      ArcMapBase(const SplitNodesBase<DGR>& adaptor, const V& value)
 		        : _arc_map(*adaptor._digraph, value),
 		          _node_map(*adaptor._digraph, value) {}
 		      void set(const Arc& key, const V& val) {
 		        if (SplitNodesBase<DGR>::origArc(key)) {
 		          _arc_map.set(static_cast<const DigraphArc&>(key), val);
 		        } else {
 		          _node_map.set(static_cast<const DigraphNode&>(key), val);
+		        }
+		      }
 		      ReturnValue operator[](const Arc& key) {
 		        if (SplitNodesBase<DGR>::origArc(key)) {
 		          return _arc_map[static_cast<const DigraphArc&>(key)];
 		        } else {
 		          return _node_map[static_cast<const DigraphNode&>(key)];
+		        }
+		      }
 		      ConstReturnValue operator[](const Arc& key) const {
 		        if (SplitNodesBase<DGR>::origArc(key)) {
 		          return _arc_map[static_cast<const DigraphArc&>(key)];
 		        } else {
 		          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> >
+		    {
 		      : public SubMapExtender<SplitNodesBase<DGR>, NodeMapBase<V> > {
 		      typedef SubMapExtender<SplitNodesBase<DGR>, NodeMapBase<V> > Parent;
 		    public:
 		      typedef V Value;
 		      typedef SubMapExtender<SplitNodesBase<DGR>, NodeMapBase<Value> > Parent;
 		      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> >
+		    {
 		      : public SubMapExtender<SplitNodesBase<DGR>, ArcMapBase<V> > {
 		      typedef SubMapExtender<SplitNodesBase<DGR>, ArcMapBase<V> > Parent;
 		    public:
 		      typedef V Value;
 		      typedef SubMapExtender<SplitNodesBase<DGR>, ArcMapBase<Value> > Parent;
 		      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.
 		  ///
 		  /// \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 DigraphAdaptorExtender<SplitNodesBase<const DGR> > Parent;
 		    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
 		    /// to get a node map of the split digraph.
 		    /// Its value type is inherited from the first node map type (\c IN).
 		    /// \tparam IN The type of the node map for the in-nodes.
 		    /// \tparam OUT The type of the node map for the out-nodes.
 		    template <typename IN, typename OUT>
 		    class CombinedNodeMap {
 		    public:
 		      /// The key type of the map
 		      typedef Node Key;
 		      /// The value type of the map
 		      typedef typename IN::Value Value;
 		      typedef typename MapTraits<IN>::ReferenceMapTag ReferenceMapTag;
 		      typedef typename MapTraits<IN>::ReturnValue ReturnValue;
 		      typedef typename MapTraits<IN>::ConstReturnValue ConstReturnValue;
 		      typedef typename MapTraits<IN>::ReturnValue Reference;
 		      typedef typename MapTraits<IN>::ConstReturnValue ConstReference;
 		      /// Constructor
 		      CombinedNodeMap(IN& in_map, OUT& out_map)
 		        : _in_map(in_map), _out_map(out_map) {}
 		      /// Returns the value associated with the given key.
 		      Value operator[](const Key& key) const {
 		        if (SplitNodesBase<const DGR>::inNode(key)) {
 		          return _in_map[key];
 		        } else {
 		          return _out_map[key];
+		        }
+		      }
 		      /// Returns a reference to the value associated with the given key.
 		      Value& operator[](const Key& key) {
 		        if (SplitNodesBase<const DGR>::inNode(key)) {
 		          return _in_map[key];
 		        } else {
 		          return _out_map[key];
+		        }
+		      }
 		      /// Sets the value associated with the given key.
 		      void set(const Key& key, const Value& value) {
 		        if (SplitNodesBase<const DGR>::inNode(key)) {
 		          _in_map.set(key, value);
 		        } else {
 		          _out_map.set(key, value);
+		        }
+		      }
 		    private:
 		      IN& _in_map;
 		      OUT& _out_map;
 		    };
 		    /// \brief Returns a combined node map
 		    ///
 		    /// This function just returns a combined node map.
 		    template <typename IN, typename OUT>
 		    static CombinedNodeMap<IN, OUT>
 		    combinedNodeMap(IN& in_map, OUT& out_map) {
 		      return CombinedNodeMap<IN, OUT>(in_map, out_map);
+		    }
 		    template <typename IN, typename OUT>
 		    static CombinedNodeMap<const IN, OUT>
 		    combinedNodeMap(const IN& in_map, OUT& out_map) {
 		      return CombinedNodeMap<const IN, OUT>(in_map, out_map);
+		    }
 		    template <typename IN, typename OUT>
 		    static CombinedNodeMap<IN, const OUT>
 		    combinedNodeMap(IN& in_map, const OUT& out_map) {
 		      return CombinedNodeMap<IN, const OUT>(in_map, out_map);
+		    }
 		    template <typename IN, typename OUT>
 		    static CombinedNodeMap<const IN, const OUT>
 		    combinedNodeMap(const IN& in_map, const OUT& out_map) {
 		      return CombinedNodeMap<const IN, const OUT>(in_map, out_map);
+		    }
 		    /// \brief Arc map combined from an arc map and a node map of the
 		    /// original digraph.
 		    ///
 		    /// This map adaptor class adapts an arc map and a node map of the
 		    /// original digraph to get an arc map of the split digraph.
 		    /// Its value type is inherited from the original arc map type (\c AM).
 		    /// \tparam AM The type of the arc map.
 		    /// \tparam NM the type of the node map.
 		    template <typename AM, typename NM>
 		    class CombinedArcMap {
 		    public:
 		      /// The key type of the map
 		      typedef Arc Key;
 		      /// The value type of the map
 		      typedef typename AM::Value Value;
 		      typedef typename MapTraits<AM>::ReferenceMapTag ReferenceMapTag;
 		      typedef typename MapTraits<AM>::ReturnValue ReturnValue;
 		      typedef typename MapTraits<AM>::ConstReturnValue ConstReturnValue;
 		      typedef typename MapTraits<AM>::ReturnValue Reference;
 		      typedef typename MapTraits<AM>::ConstReturnValue ConstReference;
 		      /// Constructor
 		      CombinedArcMap(AM& arc_map, NM& node_map)
 		        : _arc_map(arc_map), _node_map(node_map) {}
 		      /// Returns the value associated with the given key.
 		      Value operator[](const Key& arc) const {
 		        if (SplitNodesBase<const DGR>::origArc(arc)) {
 		          return _arc_map[arc];
 		        } else {
 		          return _node_map[arc];
+		        }
+		      }
 		      /// Returns a reference to the value associated with the given key.
 		      Value& operator[](const Key& arc) {
 		        if (SplitNodesBase<const DGR>::origArc(arc)) {
 		          return _arc_map[arc];
 		        } else {
 		          return _node_map[arc];
+		        }
+		      }
 		      /// Sets the value associated with the given key.
 		      void set(const Arc& arc, const Value& val) {
 		        if (SplitNodesBase<const DGR>::origArc(arc)) {
 		          _arc_map.set(arc, val);
 		        } else {
 		          _node_map.set(arc, val);
+		        }
+		      }
 		    private:
 		      AM& _arc_map;
 		      NM& _node_map;
 		    };
 		    /// \brief Returns a combined arc map
 		    ///
 		    /// This function just returns a combined arc map.
 		    template <typename ArcMap, typename NodeMap>
 		    static CombinedArcMap<ArcMap, NodeMap>
 		    combinedArcMap(ArcMap& arc_map, NodeMap& node_map) {
 		      return CombinedArcMap<ArcMap, NodeMap>(arc_map, node_map);
+		    }
 		    template <typename ArcMap, typename NodeMap>
 		    static CombinedArcMap<const ArcMap, NodeMap>
 		    combinedArcMap(const ArcMap& arc_map, NodeMap& node_map) {
 		      return CombinedArcMap<const ArcMap, NodeMap>(arc_map, node_map);
+		    }
 		    template <typename ArcMap, typename NodeMap>
 		    static CombinedArcMap<ArcMap, const NodeMap>
 		    combinedArcMap(ArcMap& arc_map, const NodeMap& node_map) {
 		      return CombinedArcMap<ArcMap, const NodeMap>(arc_map, node_map);
+		    }
 		    template <typename ArcMap, typename NodeMap>
 		    static CombinedArcMap<const ArcMap, const NodeMap>
 		    combinedArcMap(const ArcMap& arc_map, const NodeMap& node_map) {
 		      return CombinedArcMap<const ArcMap, const NodeMap>(arc_map, node_map);
+		    }
 		  };
 		  /// \brief Returns a (read-only) SplitNodes adaptor
 		  ///

lemon/bits/array_map.h

Show inline comments

 		/* -*- mode: C++; indent-tabs-mode: nil; -*-
+		 *
 		 * This file is a part of LEMON, a generic C++ optimization library.
+		 *
 		 * Copyright (C) 2003-2009
 		 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 		 * (Egervary Research Group on Combinatorial Optimization, EGRES).
+		 *
 		 * Permission to use, modify and distribute this software is granted
 		 * provided that this copyright notice appears in all copies. For
 		 * precise terms see the accompanying LICENSE file.
+		 *
 		 * This software is provided "AS IS" with no warranty of any kind,
 		 * express or implied, and with no claim as to its suitability for any
 		 * purpose.
+		 *
 		 */
 		#ifndef LEMON_BITS_ARRAY_MAP_H
 		#define LEMON_BITS_ARRAY_MAP_H
 		#include <memory>
 		#include <lemon/bits/traits.h>
 		#include <lemon/bits/alteration_notifier.h>
 		#include <lemon/concept_check.h>
 		#include <lemon/concepts/maps.h>
 		// \ingroup graphbits
 		// \file
 		// \brief Graph map based on the array storage.
 		namespace lemon {
 		  // \ingroup graphbits
 		  //
 		  // \brief Graph map based on the array storage.
 		  //
 		  // The ArrayMap template class is graph map structure that automatically
 		  // updates the map when a key is added to or erased from the graph.
 		  // This map uses the allocators to implement the container functionality.
 		  //
 		  // The template parameters are the Graph, the current Item type and
 		  // the Value type of the map.
 		  template <typename _Graph, typename _Item, typename _Value>
 		  class ArrayMap
 		    : public ItemSetTraits<_Graph, _Item>::ItemNotifier::ObserverBase {
 		  public:
 		    // The graph type.
-		    typedef _Graph Graph;
+		    typedef _Graph GraphType;
 		    // The item type.
 		    typedef _Item Item;
 		    // The reference map tag.
 		    typedef True ReferenceMapTag;
 		    // The key type of the map.
 		    typedef _Item Key;
 		    // The value type of the map.
 		    typedef _Value Value;
 		    // The const reference type of the map.
 		    typedef const _Value& ConstReference;
 		    // The reference type of the map.
 		    typedef _Value& Reference;
 		    // The map type.
 		    typedef ArrayMap Map;
 		    // The notifier type.
 		    typedef typename ItemSetTraits<_Graph, _Item>::ItemNotifier Notifier;
 		  private:
 		    // The MapBase of the Map which imlements the core regisitry function.
 		    typedef typename Notifier::ObserverBase Parent;
 		  private:
 		    typedef std::allocator<Value> Allocator;
 		  public:
 		    // \brief Graph initialized map constructor.
 		    //
 		    // Graph initialized map constructor.
-		    explicit ArrayMap(const Graph& graph) {
+		    explicit ArrayMap(const GraphType& graph) {
 		      Parent::attach(graph.notifier(Item()));
 		      allocate_memory();
 		      Notifier* nf = Parent::notifier();
 		      Item it;
 		      for (nf->first(it); it != INVALID; nf->next(it)) {
 		        int id = nf->id(it);;
 		        allocator.construct(&(values[id]), Value());
+		      }
+		    }
 		    // \brief Constructor to use default value to initialize the map.
 		    //
 		    // It constructs a map and initialize all of the the map.
-		    ArrayMap(const Graph& graph, const Value& value) {
+		    ArrayMap(const GraphType& graph, const Value& value) {
 		      Parent::attach(graph.notifier(Item()));
 		      allocate_memory();
 		      Notifier* nf = Parent::notifier();
 		      Item it;
 		      for (nf->first(it); it != INVALID; nf->next(it)) {
 		        int id = nf->id(it);;
 		        allocator.construct(&(values[id]), value);
+		      }
+		    }
 		  private:
 		    // \brief Constructor to copy a map of the same map type.
 		    //
 		    // Constructor to copy a map of the same map type.
 		    ArrayMap(const ArrayMap& copy) : Parent() {
 		      if (copy.attached()) {
 		        attach(*copy.notifier());
+		      }
 		      capacity = copy.capacity;
 		      if (capacity == 0) return;
 		      values = allocator.allocate(capacity);
 		      Notifier* nf = Parent::notifier();
 		      Item it;
 		      for (nf->first(it); it != INVALID; nf->next(it)) {
 		        int id = nf->id(it);;
 		        allocator.construct(&(values[id]), copy.values[id]);
+		      }
+		    }
 		    // \brief Assign operator.
 		    //
 		    // This operator assigns for each item in the map the
 		    // value mapped to the same item in the copied map.
 		    // The parameter map should be indiced with the same
 		    // itemset because this assign operator does not change
 		    // the container of the map.
 		    ArrayMap& operator=(const ArrayMap& cmap) {
 		      return operator=<ArrayMap>(cmap);
+		    }
 		    // \brief Template assign operator.
 		    //
 		    // The given parameter should conform to the ReadMap
 		    // concecpt and could be indiced by the current item set of
 		    // the NodeMap. In this case the value for each item
 		    // is assigned by the value of the given ReadMap.
 		    template <typename CMap>
 		    ArrayMap& operator=(const CMap& cmap) {
 		      checkConcept<concepts::ReadMap<Key, _Value>, CMap>();
 		      const typename Parent::Notifier* nf = Parent::notifier();
 		      Item it;
 		      for (nf->first(it); it != INVALID; nf->next(it)) {
 		        set(it, cmap[it]);
+		      }
 		      return *this;
+		    }
 		  public:
 		    // \brief The destructor of the map.
 		    //
 		    // The destructor of the map.
 		    virtual ~ArrayMap() {
 		      if (attached()) {
 		        clear();
 		        detach();
+		      }
+		    }
 		  protected:
 		    using Parent::attach;
 		    using Parent::detach;
 		    using Parent::attached;
 		  public:
 		    // \brief The subscript operator.
 		    //
 		    // The subscript operator. The map can be subscripted by the
 		    // actual keys of the graph.
 		    Value& operator[](const Key& key) {
 		      int id = Parent::notifier()->id(key);
 		      return values[id];
+		    }
 		    // \brief The const subscript operator.
 		    //
 		    // The const subscript operator. The map can be subscripted by the
 		    // actual keys of the graph.
 		    const Value& operator[](const Key& key) const {
 		      int id = Parent::notifier()->id(key);
 		      return values[id];
+		    }
 		    // \brief Setter function of the map.
 		    //
 		    // Setter function of the map. Equivalent with map[key] = val.
 		    // This is a compatibility feature with the not dereferable maps.
 		    void set(const Key& key, const Value& val) {
 		      (*this)[key] = val;
+		    }
 		  protected:
 		    // \brief Adds a new key to the map.
 		    //
 		    // It adds a new key to the map. It is called by the observer notifier
 		    // and it overrides the add() member function of the observer base.
 		    virtual void add(const Key& key) {
 		      Notifier* nf = Parent::notifier();
 		      int id = nf->id(key);
 		      if (id >= capacity) {
 		        int new_capacity = (capacity == 0 ? 1 : capacity);
 		        while (new_capacity <= id) {
 		          new_capacity <<= 1;
+		        }
 		        Value* new_values = allocator.allocate(new_capacity);
 		        Item it;
 		        for (nf->first(it); it != INVALID; nf->next(it)) {
 		          int jd = nf->id(it);;
 		          if (id != jd) {
 		            allocator.construct(&(new_values[jd]), values[jd]);
 		            allocator.destroy(&(values[jd]));
+		          }
+		        }
 		        if (capacity != 0) allocator.deallocate(values, capacity);
 		        values = new_values;
 		        capacity = new_capacity;
+		      }
 		      allocator.construct(&(values[id]), Value());
+		    }
 		    // \brief Adds more new keys to the map.
 		    //
 		    // It adds more new keys to the map. It is called by the observer notifier
 		    // and it overrides the add() member function of the observer base.
 		    virtual void add(const std::vector<Key>& keys) {
 		      Notifier* nf = Parent::notifier();
 		      int max_id = -1;
 		      for (int i = 0; i < int(keys.size()); ++i) {
 		        int id = nf->id(keys[i]);
 		        if (id > max_id) {
 		          max_id = id;
+		        }
+		      }
 		      if (max_id >= capacity) {
 		        int new_capacity = (capacity == 0 ? 1 : capacity);
 		        while (new_capacity <= max_id) {
 		          new_capacity <<= 1;
+		        }
 		        Value* new_values = allocator.allocate(new_capacity);
 		        Item it;
 		        for (nf->first(it); it != INVALID; nf->next(it)) {
 		          int id = nf->id(it);
 		          bool found = false;
 		          for (int i = 0; i < int(keys.size()); ++i) {
 		            int jd = nf->id(keys[i]);
 		            if (id == jd) {
 		              found = true;
 		              break;
+		            }
+		          }
 		          if (found) continue;
 		          allocator.construct(&(new_values[id]), values[id]);
 		          allocator.destroy(&(values[id]));
+		        }
 		        if (capacity != 0) allocator.deallocate(values, capacity);
 		        values = new_values;
 		        capacity = new_capacity;
+		      }
 		      for (int i = 0; i < int(keys.size()); ++i) {
 		        int id = nf->id(keys[i]);
 		        allocator.construct(&(values[id]), Value());
+		      }
+		    }
 		    // \brief Erase a key from the map.
 		    //
 		    // Erase a key from the map. It is called by the observer notifier
 		    // and it overrides the erase() member function of the observer base.
 		    virtual void erase(const Key& key) {
 		      int id = Parent::notifier()->id(key);
 		      allocator.destroy(&(values[id]));
+		    }
 		    // \brief Erase more keys from the map.
 		    //
 		    // Erase more keys from the map. It is called by the observer notifier
 		    // and it overrides the erase() member function of the observer base.
 		    virtual void erase(const std::vector<Key>& keys) {
 		      for (int i = 0; i < int(keys.size()); ++i) {
 		        int id = Parent::notifier()->id(keys[i]);
 		        allocator.destroy(&(values[id]));
+		      }
+		    }
 		    // \brief Builds the map.
 		    //
 		    // It builds the map. It is called by the observer notifier
 		    // and it overrides the build() member function of the observer base.
 		    virtual void build() {
 		      Notifier* nf = Parent::notifier();
 		      allocate_memory();
 		      Item it;
 		      for (nf->first(it); it != INVALID; nf->next(it)) {
 		        int id = nf->id(it);;
 		        allocator.construct(&(values[id]), Value());
+		      }
+		    }
 		    // \brief Clear the map.
 		    //
 		    // It erase all items from the map. It is called by the observer notifier
 		    // and it overrides the clear() member function of the observer base.
 		    virtual void clear() {
 		      Notifier* nf = Parent::notifier();
 		      if (capacity != 0) {
 		        Item it;
 		        for (nf->first(it); it != INVALID; nf->next(it)) {
 		          int id = nf->id(it);
 		          allocator.destroy(&(values[id]));
+		        }
 		        allocator.deallocate(values, capacity);
 		        capacity = 0;
+		      }
+		    }
 		  private:
 		    void allocate_memory() {
 		      int max_id = Parent::notifier()->maxId();
 		      if (max_id == -1) {
 		        capacity = 0;
 		        values = 0;
 		        return;
+		      }
 		      capacity = 1;
 		      while (capacity <= max_id) {
 		        capacity <<= 1;
+		      }
 		      values = allocator.allocate(capacity);
+		    }
 		    int capacity;
 		    Value* values;
 		    Allocator allocator;
 		  };
+		}
 		#endif

lemon/bits/base_extender.h

Show inline comments

/* -*- mode: C++; indent-tabs-mode: nil; -*-
 *
 * This file is a part of LEMON, a generic C++ optimization library.
 *
 * Copyright (C) 2003-2009
 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 * (Egervary Research Group on Combinatorial Optimization, EGRES).
 *
 * Permission to use, modify and distribute this software is granted
 * provided that this copyright notice appears in all copies. For
 * precise terms see the accompanying LICENSE file.
 *
 * This software is provided "AS IS" with no warranty of any kind,
 * express or implied, and with no claim as to its suitability for any
 * purpose.
 *
 */

#ifndef LEMON_BITS_BASE_EXTENDER_H
#define LEMON_BITS_BASE_EXTENDER_H

#include <lemon/core.h>
#include <lemon/error.h>

#include <lemon/bits/map_extender.h>
#include <lemon/bits/default_map.h>

#include <lemon/concept_check.h>
#include <lemon/concepts/maps.h>

//\ingroup digraphbits
//\file
//\brief Extenders for the graph types
namespace lemon {

  // \ingroup digraphbits
  //
  // \brief BaseDigraph to BaseGraph extender
  template <typename Base>
  class UndirDigraphExtender : public Base {
    typedef Base Parent;

  public:

    typedef Base Parent;
    typedef typename Parent::Arc Edge;
    typedef typename Parent::Node Node;

    typedef True UndirectedTag;

    class Arc : public Edge {
      friend class UndirDigraphExtender;

    protected:
      bool forward;

      Arc(const Edge &ue, bool _forward) :
        Edge(ue), forward(_forward) {}

    public:
      Arc() {}

      // Invalid arc constructor
      Arc(Invalid i) : Edge(i), forward(true) {}

      bool operator==(const Arc &that) const {
        return forward==that.forward && Edge(*this)==Edge(that);
      }
      bool operator!=(const Arc &that) const {
        return forward!=that.forward || Edge(*this)!=Edge(that);
      }
      bool operator<(const Arc &that) const {
        return forward<that.forward ||
          (!(that.forward<forward) && Edge(*this)<Edge(that));
      }
    };

    // First node of the edge
    Node u(const Edge &e) const {
      return Parent::source(e);
    }

    // Source of the given arc
    Node source(const Arc &e) const {
      return e.forward ? Parent::source(e) : Parent::target(e);
    }

    // Second node of the edge
    Node v(const Edge &e) const {
      return Parent::target(e);
    }

    // Target of the given arc
    Node target(const Arc &e) const {
      return e.forward ? Parent::target(e) : Parent::source(e);
    }

    // \brief Directed arc from an edge.
    //
    // Returns a directed arc corresponding to the specified edge.
    // If the given bool is true, the first node of the given edge and
    // the source node of the returned arc are the same.
    static Arc direct(const Edge &e, bool d) {
      return Arc(e, d);
    }

    // Returns whether the given directed arc has the same orientation
    // as the corresponding edge.
    static bool direction(const Arc &a) { return a.forward; }

    using Parent::first;
    using Parent::next;

    void first(Arc &e) const {
      Parent::first(e);
      e.forward=true;
    }

    void next(Arc &e) const {
      if( e.forward ) {
        e.forward = false;
      }
      else {
        Parent::next(e);
        e.forward = true;
      }
    }

    void firstOut(Arc &e, const Node &n) const {
      Parent::firstIn(e,n);
      if( Edge(e) != INVALID ) {
        e.forward = false;
      }
      else {
        Parent::firstOut(e,n);
        e.forward = true;
      }
    }
    void nextOut(Arc &e) const {
      if( ! e.forward ) {
        Node n = Parent::target(e);
        Parent::nextIn(e);
        if( Edge(e) == INVALID ) {
          Parent::firstOut(e, n);
          e.forward = true;
        }
      }
      else {
        Parent::nextOut(e);
      }
    }

    void firstIn(Arc &e, const Node &n) const {
      Parent::firstOut(e,n);
      if( Edge(e) != INVALID ) {
        e.forward = false;
      }
      else {
        Parent::firstIn(e,n);
        e.forward = true;
      }
    }
    void nextIn(Arc &e) const {
      if( ! e.forward ) {
        Node n = Parent::source(e);
        Parent::nextOut(e);
        if( Edge(e) == INVALID ) {
          Parent::firstIn(e, n);
          e.forward = true;
        }
      }
      else {
        Parent::nextIn(e);
      }
    }

    void firstInc(Edge &e, bool &d, const Node &n) const {
      d = true;
      Parent::firstOut(e, n);
      if (e != INVALID) return;
      d = false;
      Parent::firstIn(e, n);
    }

    void nextInc(Edge &e, bool &d) const {
      if (d) {
        Node s = Parent::source(e);
        Parent::nextOut(e);
        if (e != INVALID) return;
        d = false;
        Parent::firstIn(e, s);
      } else {
        Parent::nextIn(e);
      }
    }

    Node nodeFromId(int ix) const {
      return Parent::nodeFromId(ix);
    }

    Arc arcFromId(int ix) const {
      return direct(Parent::arcFromId(ix >> 1), bool(ix & 1));
    }

    Edge edgeFromId(int ix) const {
      return Parent::arcFromId(ix);
    }

    int id(const Node &n) const {
      return Parent::id(n);
    }

    int id(const Edge &e) const {
      return Parent::id(e);
    }

    int id(const Arc &e) const {
      return 2 * Parent::id(e) + int(e.forward);
    }

    int maxNodeId() const {
      return Parent::maxNodeId();
    }

    int maxArcId() const {
      return 2 * Parent::maxArcId() + 1;
    }

    int maxEdgeId() const {
      return Parent::maxArcId();
    }

    int arcNum() const {
      return 2 * Parent::arcNum();
    }

    int edgeNum() const {
      return Parent::arcNum();
    }

    Arc findArc(Node s, Node t, Arc p = INVALID) const {
      if (p == INVALID) {
        Edge arc = Parent::findArc(s, t);
        if (arc != INVALID) return direct(arc, true);
        arc = Parent::findArc(t, s);
        if (arc != INVALID) return direct(arc, false);
      } else if (direction(p)) {
        Edge arc = Parent::findArc(s, t, p);
        if (arc != INVALID) return direct(arc, true);
        arc = Parent::findArc(t, s);
        if (arc != INVALID) return direct(arc, false);
      } else {
        Edge arc = Parent::findArc(t, s, p);
        if (arc != INVALID) return direct(arc, false);
      }
      return INVALID;
    }

    Edge findEdge(Node s, Node t, Edge p = INVALID) const {
      if (s != t) {
        if (p == INVALID) {
          Edge arc = Parent::findArc(s, t);
          if (arc != INVALID) return arc;
          arc = Parent::findArc(t, s);
          if (arc != INVALID) return arc;
        } else if (Parent::s(p) == s) {
          Edge arc = Parent::findArc(s, t, p);
          if (arc != INVALID) return arc;
          arc = Parent::findArc(t, s);
          if (arc != INVALID) return arc;
        } else {
          Edge arc = Parent::findArc(t, s, p);
          if (arc != INVALID) return arc;
        }
      } else {
        return Parent::findArc(s, t, p);
      }
      return INVALID;
    }
  };

  template <typename Base>
  class BidirBpGraphExtender : public Base {
    typedef Base Parent;

  public:
    typedef Base Parent;
    typedef BidirBpGraphExtender Digraph;

    typedef typename Parent::Node Node;
    typedef typename Parent::Edge Edge;


    using Parent::first;
    using Parent::next;

    using Parent::id;

    class Red : public Node {
      friend class BidirBpGraphExtender;
    public:
      Red() {}
      Red(const Node& node) : Node(node) {
        LEMON_DEBUG(Parent::red(node) || node == INVALID,
                    typename Parent::NodeSetError());
      }
      Red& operator=(const Node& node) {
        LEMON_DEBUG(Parent::red(node) || node == INVALID,
                    typename Parent::NodeSetError());
        Node::operator=(node);
        return *this;
      }
      Red(Invalid) : Node(INVALID) {}
      Red& operator=(Invalid) {
        Node::operator=(INVALID);
        return *this;
      }
    };

    void first(Red& node) const {
      Parent::firstRed(static_cast<Node&>(node));
    }
    void next(Red& node) const {
      Parent::nextRed(static_cast<Node&>(node));
    }

    int id(const Red& node) const {
      return Parent::redId(node);
    }

    class Blue : public Node {
      friend class BidirBpGraphExtender;
    public:
      Blue() {}
      Blue(const Node& node) : Node(node) {
        LEMON_DEBUG(Parent::blue(node) || node == INVALID,
                    typename Parent::NodeSetError());
      }
      Blue& operator=(const Node& node) {
        LEMON_DEBUG(Parent::blue(node) || node == INVALID,
                    typename Parent::NodeSetError());
        Node::operator=(node);
        return *this;
      }
      Blue(Invalid) : Node(INVALID) {}
      Blue& operator=(Invalid) {
        Node::operator=(INVALID);
        return *this;
      }
    };

    void first(Blue& node) const {
      Parent::firstBlue(static_cast<Node&>(node));
    }
    void next(Blue& node) const {
      Parent::nextBlue(static_cast<Node&>(node));
    }

    int id(const Blue& node) const {
      return Parent::redId(node);
    }

    Node source(const Edge& arc) const {
      return red(arc);
    }
    Node target(const Edge& arc) const {
      return blue(arc);
    }

    void firstInc(Edge& arc, bool& dir, const Node& node) const {
      if (Parent::red(node)) {
        Parent::firstFromRed(arc, node);
        dir = true;
      } else {
        Parent::firstFromBlue(arc, node);
        dir = static_cast<Edge&>(arc) == INVALID;
      }
    }
    void nextInc(Edge& arc, bool& dir) const {
      if (dir) {
        Parent::nextFromRed(arc);
      } else {
        Parent::nextFromBlue(arc);
        if (arc == INVALID) dir = true;
      }
    }

    class Arc : public Edge {
      friend class BidirBpGraphExtender;
    protected:
      bool forward;

      Arc(const Edge& arc, bool _forward)
        : Edge(arc), forward(_forward) {}

    public:
      Arc() {}
      Arc (Invalid) : Edge(INVALID), forward(true) {}
      bool operator==(const Arc& i) const {
        return Edge::operator==(i) && forward == i.forward;
      }
      bool operator!=(const Arc& i) const {
        return Edge::operator!=(i) || forward != i.forward;
      }
      bool operator<(const Arc& i) const {
        return Edge::operator<(i) ||
          (!(i.forward<forward) && Edge(*this)<Edge(i));
      }
    };

    void first(Arc& arc) const {
      Parent::first(static_cast<Edge&>(arc));
      arc.forward = true;
    }

    void next(Arc& arc) const {
      if (!arc.forward) {
        Parent::next(static_cast<Edge&>(arc));
      }
      arc.forward = !arc.forward;
    }

    void firstOut(Arc& arc, const Node& node) const {
      if (Parent::red(node)) {
        Parent::firstFromRed(arc, node);
        arc.forward = true;
      } else {
        Parent::firstFromBlue(arc, node);
        arc.forward = static_cast<Edge&>(arc) == INVALID;
      }
    }
    void nextOut(Arc& arc) const {
      if (arc.forward) {
        Parent::nextFromRed(arc);
      } else {
        Parent::nextFromBlue(arc);
        arc.forward = static_cast<Edge&>(arc) == INVALID;
      }
    }

    void firstIn(Arc& arc, const Node& node) const {
      if (Parent::blue(node)) {
        Parent::firstFromBlue(arc, node);
        arc.forward = true;
      } else {
        Parent::firstFromRed(arc, node);
        arc.forward = static_cast<Edge&>(arc) == INVALID;
      }
    }
    void nextIn(Arc& arc) const {
      if (arc.forward) {
        Parent::nextFromBlue(arc);
      } else {
        Parent::nextFromRed(arc);
        arc.forward = static_cast<Edge&>(arc) == INVALID;
      }
    }

    Node source(const Arc& arc) const {
      return arc.forward ? Parent::red(arc) : Parent::blue(arc);
    }
    Node target(const Arc& arc) const {
      return arc.forward ? Parent::blue(arc) : Parent::red(arc);
    }

    int id(const Arc& arc) const {
      return (Parent::id(static_cast<const Edge&>(arc)) << 1) +
        (arc.forward ? 0 : 1);
    }
    Arc arcFromId(int ix) const {
      return Arc(Parent::fromEdgeId(ix >> 1), (ix & 1) == 0);
    }
    int maxArcId() const {
      return (Parent::maxEdgeId() << 1) + 1;
    }

    bool direction(const Arc& arc) const {
      return arc.forward;
    }

    Arc direct(const Edge& arc, bool dir) const {
      return Arc(arc, dir);
    }

    int arcNum() const {
      return 2 * Parent::edgeNum();
    }

    int edgeNum() const {
      return Parent::edgeNum();
    }


  };
}

#endif

lemon/bits/default_map.h

Show inline comments

 		/* -*- mode: C++; indent-tabs-mode: nil; -*-
+		 *
 		 * This file is a part of LEMON, a generic C++ optimization library.
+		 *
 		 * Copyright (C) 2003-2009
 		 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 		 * (Egervary Research Group on Combinatorial Optimization, EGRES).
+		 *
 		 * Permission to use, modify and distribute this software is granted
 		 * provided that this copyright notice appears in all copies. For
 		 * precise terms see the accompanying LICENSE file.
+		 *
 		 * This software is provided "AS IS" with no warranty of any kind,
 		 * express or implied, and with no claim as to its suitability for any
 		 * purpose.
+		 *
 		 */
 		#ifndef LEMON_BITS_DEFAULT_MAP_H
 		#define LEMON_BITS_DEFAULT_MAP_H
 		#include <lemon/config.h>
 		#include <lemon/bits/array_map.h>
 		#include <lemon/bits/vector_map.h>
 		//#include <lemon/bits/debug_map.h>
 		//\ingroup graphbits
 		//\file
 		//\brief Graph maps that construct and destruct their elements dynamically.
 		namespace lemon {
 		  //#ifndef LEMON_USE_DEBUG_MAP
 		  template <typename _Graph, typename _Item, typename _Value>
 		  struct DefaultMapSelector {
 		    typedef ArrayMap<_Graph, _Item, _Value> Map;
 		  };
 		  // bool
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, bool> {
 		    typedef VectorMap<_Graph, _Item, bool> Map;
 		  };
 		  // char
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, char> {
 		    typedef VectorMap<_Graph, _Item, char> Map;
 		  };
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, signed char> {
 		    typedef VectorMap<_Graph, _Item, signed char> Map;
 		  };
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, unsigned char> {
 		    typedef VectorMap<_Graph, _Item, unsigned char> Map;
 		  };
 		  // int
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, signed int> {
 		    typedef VectorMap<_Graph, _Item, signed int> Map;
 		  };
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, unsigned int> {
 		    typedef VectorMap<_Graph, _Item, unsigned int> Map;
 		  };
 		  // short
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, signed short> {
 		    typedef VectorMap<_Graph, _Item, signed short> Map;
 		  };
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, unsigned short> {
 		    typedef VectorMap<_Graph, _Item, unsigned short> Map;
 		  };
 		  // long
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, signed long> {
 		    typedef VectorMap<_Graph, _Item, signed long> Map;
 		  };
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, unsigned long> {
 		    typedef VectorMap<_Graph, _Item, unsigned long> Map;
 		  };
 		#if defined HAVE_LONG_LONG
 		  // long long
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, signed long long> {
 		    typedef VectorMap<_Graph, _Item, signed long long> Map;
 		  };
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, unsigned long long> {
 		    typedef VectorMap<_Graph, _Item, unsigned long long> Map;
 		  };
 		#endif
 		  // float
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, float> {
 		    typedef VectorMap<_Graph, _Item, float> Map;
 		  };
 		  // double
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, double> {
 		    typedef VectorMap<_Graph, _Item,  double> Map;
 		  };
 		  // long double
 		  template <typename _Graph, typename _Item>
 		  struct DefaultMapSelector<_Graph, _Item, long double> {
 		    typedef VectorMap<_Graph, _Item, long double> Map;
 		  };
 		  // pointer
 		  template <typename _Graph, typename _Item, typename _Ptr>
 		  struct DefaultMapSelector<_Graph, _Item, _Ptr*> {
 		    typedef VectorMap<_Graph, _Item, _Ptr*> Map;
 		  };
 		// #else
 		//   template <typename _Graph, typename _Item, typename _Value>
 		//   struct DefaultMapSelector {
 		//     typedef DebugMap<_Graph, _Item, _Value> Map;
 		//   };
 		// #endif
 		  // DefaultMap class
 		  template <typename _Graph, typename _Item, typename _Value>
 		  class DefaultMap
 		    : public DefaultMapSelector<_Graph, _Item, _Value>::Map {
 		    typedef typename DefaultMapSelector<_Graph, _Item, _Value>::Map Parent;
 		  public:
 		    typedef typename DefaultMapSelector<_Graph, _Item, _Value>::Map Parent;
 		    typedef DefaultMap<_Graph, _Item, _Value> Map;
 		    typedef typename Parent::Graph Graph;
 		    typedef typename Parent::GraphType GraphType;
 		    typedef typename Parent::Value Value;
 		    explicit DefaultMap(const Graph& graph) : Parent(graph) {}
 		    DefaultMap(const Graph& graph, const Value& value)
 		    explicit DefaultMap(const GraphType& graph) : Parent(graph) {}
 		    DefaultMap(const GraphType& graph, const Value& value)
 		      : Parent(graph, value) {}
 		    DefaultMap& operator=(const DefaultMap& cmap) {
 		      return operator=<DefaultMap>(cmap);
+		    }
 		    template <typename CMap>
 		    DefaultMap& operator=(const CMap& cmap) {
 		      Parent::operator=(cmap);
 		      return *this;
+		    }
 		  };
+		}
 		#endif

lemon/bits/edge_set_extender.h

Show inline comments

 		/* -*- C++ -*-
+		 *
 		 * This file is a part of LEMON, a generic C++ optimization library
+		 *
 		 * Copyright (C) 2003-2008
 		 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 		 * (Egervary Research Group on Combinatorial Optimization, EGRES).
+		 *
 		 * Permission to use, modify and distribute this software is granted
 		 * provided that this copyright notice appears in all copies. For
 		 * precise terms see the accompanying LICENSE file.
+		 *
 		 * This software is provided "AS IS" with no warranty of any kind,
 		 * express or implied, and with no claim as to its suitability for any
 		 * purpose.
+		 *
 		 */
 		#ifndef LEMON_BITS_EDGE_SET_EXTENDER_H
 		#define LEMON_BITS_EDGE_SET_EXTENDER_H
 		#include <lemon/core.h>
 		#include <lemon/error.h>
 		#include <lemon/bits/default_map.h>
 		#include <lemon/bits/map_extender.h>
 		//\ingroup digraphbits
 		//\file
 		//\brief Extenders for the arc set types
 		namespace lemon {
 		  // \ingroup digraphbits
 		  //
 		  // \brief Extender for the ArcSets
 		  template <typename Base>
 		  class ArcSetExtender : public Base {
 		    typedef Base Parent;
 		  public:
 		    typedef Base Parent;
 		    typedef ArcSetExtender Digraph;
 		    // Base extensions
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    int maxId(Node) const {
 		      return Parent::maxNodeId();
+		    }
 		    int maxId(Arc) const {
 		      return Parent::maxArcId();
+		    }
 		    Node fromId(int id, Node) const {
 		      return Parent::nodeFromId(id);
+		    }
 		    Arc fromId(int id, Arc) const {
 		      return Parent::arcFromId(id);
+		    }
 		    Node oppositeNode(const Node &n, const Arc &e) const {
 		      if (n == Parent::source(e))
 			return Parent::target(e);
 		      else if(n==Parent::target(e))
 			return Parent::source(e);
 		      else
 			return INVALID;
+		    }
 		    // Alteration notifier extensions
 		    // The arc observer registry.
 		    typedef AlterationNotifier<ArcSetExtender, Arc> ArcNotifier;
 		  protected:
 		    mutable ArcNotifier arc_notifier;
 		  public:
 		    using Parent::notifier;
 		    // Gives back the arc alteration notifier.
 		    ArcNotifier& notifier(Arc) const {
 		      return arc_notifier;
+		    }
 		    // Iterable extensions
 		    class NodeIt : public Node {
 		      const Digraph* digraph;
 		    public:
 		      NodeIt() {}
 		      NodeIt(Invalid i) : Node(i) { }
 		      explicit NodeIt(const Digraph& _graph) : digraph(&_graph) {
 			_graph.first(static_cast<Node&>(*this));
+		      }
 		      NodeIt(const Digraph& _graph, const Node& node)
 			: Node(node), digraph(&_graph) {}
 		      NodeIt& operator++() {
 			digraph->next(*this);
 			return *this;
+		      }
 		    };
 		    class ArcIt : public Arc {
 		      const Digraph* digraph;
 		    public:
 		      ArcIt() { }
 		      ArcIt(Invalid i) : Arc(i) { }
 		      explicit ArcIt(const Digraph& _graph) : digraph(&_graph) {
 			_graph.first(static_cast<Arc&>(*this));
+		      }
 		      ArcIt(const Digraph& _graph, const Arc& e) :
 			Arc(e), digraph(&_graph) { }
 		      ArcIt& operator++() {
 			digraph->next(*this);
 			return *this;
+		      }
 		    };
 		    class OutArcIt : public Arc {
 		      const Digraph* digraph;
 		    public:
 		      OutArcIt() { }
 		      OutArcIt(Invalid i) : Arc(i) { }
 		      OutArcIt(const Digraph& _graph, const Node& node)
 			: digraph(&_graph) {
 			_graph.firstOut(*this, node);
+		      }
 		      OutArcIt(const Digraph& _graph, const Arc& arc)
 			: Arc(arc), digraph(&_graph) {}
 		      OutArcIt& operator++() {
 			digraph->nextOut(*this);
 			return *this;
+		      }
 		    };
 		    class InArcIt : public Arc {
 		      const Digraph* digraph;
 		    public:
 		      InArcIt() { }
 		      InArcIt(Invalid i) : Arc(i) { }
 		      InArcIt(const Digraph& _graph, const Node& node)
 			: digraph(&_graph) {
 			_graph.firstIn(*this, node);
+		      }
 		      InArcIt(const Digraph& _graph, const Arc& arc) :
 			Arc(arc), digraph(&_graph) {}
 		      InArcIt& operator++() {
 			digraph->nextIn(*this);
 			return *this;
+		      }
 		    };
 		    // \brief Base node of the iterator
 		    //
 		    // Returns the base node (ie. the source in this case) of the iterator
 		    Node baseNode(const OutArcIt &e) const {
 		      return Parent::source(static_cast<const Arc&>(e));
+		    }
 		    // \brief Running node of the iterator
 		    //
 		    // Returns the running node (ie. the target in this case) of the
 		    // iterator
 		    Node runningNode(const OutArcIt &e) const {
 		      return Parent::target(static_cast<const Arc&>(e));
+		    }
 		    // \brief Base node of the iterator
 		    //
 		    // Returns the base node (ie. the target in this case) of the iterator
 		    Node baseNode(const InArcIt &e) const {
 		      return Parent::target(static_cast<const Arc&>(e));
+		    }
 		    // \brief Running node of the iterator
 		    //
 		    // Returns the running node (ie. the source in this case) of the
 		    // iterator
 		    Node runningNode(const InArcIt &e) const {
 		      return Parent::source(static_cast<const Arc&>(e));
+		    }
 		    using Parent::first;
 		    // Mappable extension
 		    template <typename _Value>
 		    class ArcMap
 		      : public MapExtender<DefaultMap<Digraph, Arc, _Value> > {
 		    public:
 		      typedef ArcSetExtender Digraph;
 		      typedef MapExtender<DefaultMap<Digraph, Arc, _Value> > Parent;
 		    public:
 		      explicit ArcMap(const Digraph& _g)
 			: Parent(_g) {}
 		      ArcMap(const Digraph& _g, const _Value& _v)
 			: Parent(_g, _v) {}
 		      ArcMap& operator=(const ArcMap& cmap) {
 			return operator=<ArcMap>(cmap);
+		      }
 		      template <typename CMap>
 		      ArcMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 			return *this;
+		      }
 		    };
 		    // Alteration extension
 		    Arc addArc(const Node& from, const Node& to) {
 		      Arc arc = Parent::addArc(from, to);
 		      notifier(Arc()).add(arc);
 		      return arc;
+		    }
 		    void clear() {
 		      notifier(Arc()).clear();
 		      Parent::clear();
+		    }
 		    void erase(const Arc& arc) {
 		      notifier(Arc()).erase(arc);
 		      Parent::erase(arc);
+		    }
 		    ArcSetExtender() {
 		      arc_notifier.setContainer(*this);
+		    }
 		    ~ArcSetExtender() {
 		      arc_notifier.clear();
+		    }
 		  };
 		  // \ingroup digraphbits
 		  //
 		  // \brief Extender for the EdgeSets
 		  template <typename Base>
 		  class EdgeSetExtender : public Base {
 		    typedef Base Parent;
 		  public:
 		    typedef Base Parent;
 		    typedef EdgeSetExtender Digraph;
 		    typedef EdgeSetExtender Graph;
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    typedef typename Parent::Edge Edge;
 		    int maxId(Node) const {
 		      return Parent::maxNodeId();
+		    }
 		    int maxId(Arc) const {
 		      return Parent::maxArcId();
+		    }
 		    int maxId(Edge) const {
 		      return Parent::maxEdgeId();
+		    }
 		    Node fromId(int id, Node) const {
 		      return Parent::nodeFromId(id);
+		    }
 		    Arc fromId(int id, Arc) const {
 		      return Parent::arcFromId(id);
+		    }
 		    Edge fromId(int id, Edge) const {
 		      return Parent::edgeFromId(id);
+		    }
 		    Node oppositeNode(const Node &n, const Edge &e) const {
 		      if( n == Parent::u(e))
 			return Parent::v(e);
 		      else if( n == Parent::v(e))
 			return Parent::u(e);
 		      else
 			return INVALID;
+		    }
 		    Arc oppositeArc(const Arc &e) const {
 		      return Parent::direct(e, !Parent::direction(e));
+		    }
 		    using Parent::direct;
 		    Arc direct(const Edge &e, const Node &s) const {
 		      return Parent::direct(e, Parent::u(e) == s);
+		    }
 		    typedef AlterationNotifier<EdgeSetExtender, Arc> ArcNotifier;
 		    typedef AlterationNotifier<EdgeSetExtender, Edge> EdgeNotifier;
 		  protected:
 		    mutable ArcNotifier arc_notifier;
 		    mutable EdgeNotifier edge_notifier;
 		  public:
 		    using Parent::notifier;
 		    ArcNotifier& notifier(Arc) const {
 		      return arc_notifier;
+		    }
 		    EdgeNotifier& notifier(Edge) const {
 		      return edge_notifier;
+		    }
 		    class NodeIt : public Node {
-		      const Digraph* digraph;
+		      const Graph* graph;
 		    public:
 		      NodeIt() {}
 		      NodeIt(Invalid i) : Node(i) { }
-		      explicit NodeIt(const Digraph& _graph) : digraph(&_graph) {
+		      explicit NodeIt(const Graph& _graph) : graph(&_graph) {
 			_graph.first(static_cast<Node&>(*this));
+		      }
 		      NodeIt(const Digraph& _graph, const Node& node)
 			: Node(node), digraph(&_graph) {}
 		      NodeIt(const Graph& _graph, const Node& node)
 			: Node(node), graph(&_graph) {}
 		      NodeIt& operator++() {
-			digraph->next(*this);
+			graph->next(*this);
 			return *this;
+		      }
 		    };
 		    class ArcIt : public Arc {
-		      const Digraph* digraph;
+		      const Graph* graph;
 		    public:
 		      ArcIt() { }
 		      ArcIt(Invalid i) : Arc(i) { }
-		      explicit ArcIt(const Digraph& _graph) : digraph(&_graph) {
+		      explicit ArcIt(const Graph& _graph) : graph(&_graph) {
 			_graph.first(static_cast<Arc&>(*this));
+		      }
 		      ArcIt(const Digraph& _graph, const Arc& e) :
 			Arc(e), digraph(&_graph) { }
 		      ArcIt(const Graph& _graph, const Arc& e) :
 			Arc(e), graph(&_graph) { }
 		      ArcIt& operator++() {
-			digraph->next(*this);
+			graph->next(*this);
 			return *this;
+		      }
 		    };
 		    class OutArcIt : public Arc {
-		      const Digraph* digraph;
+		      const Graph* graph;
 		    public:
 		      OutArcIt() { }
 		      OutArcIt(Invalid i) : Arc(i) { }
 		      OutArcIt(const Digraph& _graph, const Node& node)
 			: digraph(&_graph) {
 		      OutArcIt(const Graph& _graph, const Node& node)
 			: graph(&_graph) {
 			_graph.firstOut(*this, node);
+		      }
 		      OutArcIt(const Digraph& _graph, const Arc& arc)
 			: Arc(arc), digraph(&_graph) {}
 		      OutArcIt(const Graph& _graph, const Arc& arc)
 			: Arc(arc), graph(&_graph) {}
 		      OutArcIt& operator++() {
-			digraph->nextOut(*this);
+			graph->nextOut(*this);
 			return *this;
+		      }
 		    };
 		    class InArcIt : public Arc {
-		      const Digraph* digraph;
+		      const Graph* graph;
 		    public:
 		      InArcIt() { }
 		      InArcIt(Invalid i) : Arc(i) { }
 		      InArcIt(const Digraph& _graph, const Node& node)
 			: digraph(&_graph) {
 		      InArcIt(const Graph& _graph, const Node& node)
 			: graph(&_graph) {
 			_graph.firstIn(*this, node);
+		      }
 		      InArcIt(const Digraph& _graph, const Arc& arc) :
 			Arc(arc), digraph(&_graph) {}
 		      InArcIt(const Graph& _graph, const Arc& arc) :
 			Arc(arc), graph(&_graph) {}
 		      InArcIt& operator++() {
-			digraph->nextIn(*this);
+			graph->nextIn(*this);
 			return *this;
+		      }
 		    };
 		    class EdgeIt : public Parent::Edge {
-		      const Digraph* digraph;
+		      const Graph* graph;
 		    public:
 		      EdgeIt() { }
 		      EdgeIt(Invalid i) : Edge(i) { }
-		      explicit EdgeIt(const Digraph& _graph) : digraph(&_graph) {
+		      explicit EdgeIt(const Graph& _graph) : graph(&_graph) {
 			_graph.first(static_cast<Edge&>(*this));
+		      }
 		      EdgeIt(const Digraph& _graph, const Edge& e) :
 			Edge(e), digraph(&_graph) { }
 		      EdgeIt(const Graph& _graph, const Edge& e) :
 			Edge(e), graph(&_graph) { }
 		      EdgeIt& operator++() {
-			digraph->next(*this);
+			graph->next(*this);
 			return *this;
+		      }
 		    };
 		    class IncEdgeIt : public Parent::Edge {
 		      friend class EdgeSetExtender;
-		      const Digraph* digraph;
+		      const Graph* graph;
 		      bool direction;
 		    public:
 		      IncEdgeIt() { }
 		      IncEdgeIt(Invalid i) : Edge(i), direction(false) { }
-		      IncEdgeIt(const Digraph& _graph, const Node &n) : digraph(&_graph) {
+		      IncEdgeIt(const Graph& _graph, const Node &n) : graph(&_graph) {
 			_graph.firstInc(*this, direction, n);
+		      }
 		      IncEdgeIt(const Digraph& _graph, const Edge &ue, const Node &n)
 			: digraph(&_graph), Edge(ue) {
 		      IncEdgeIt(const Graph& _graph, const Edge &ue, const Node &n)
 			: graph(&_graph), Edge(ue) {
 			direction = (_graph.source(ue) == n);
+		      }
 		      IncEdgeIt& operator++() {
-			digraph->nextInc(*this, direction);
+			graph->nextInc(*this, direction);
 			return *this;
+		      }
 		    };
 		    // \brief Base node of the iterator
 		    //
 		    // Returns the base node (ie. the source in this case) of the iterator
 		    Node baseNode(const OutArcIt &e) const {
 		      return Parent::source(static_cast<const Arc&>(e));
+		    }
 		    // \brief Running node of the iterator
 		    //
 		    // Returns the running node (ie. the target in this case) of the
 		    // iterator
 		    Node runningNode(const OutArcIt &e) const {
 		      return Parent::target(static_cast<const Arc&>(e));
+		    }
 		    // \brief Base node of the iterator
 		    //
 		    // Returns the base node (ie. the target in this case) of the iterator
 		    Node baseNode(const InArcIt &e) const {
 		      return Parent::target(static_cast<const Arc&>(e));
+		    }
 		    // \brief Running node of the iterator
 		    //
 		    // Returns the running node (ie. the source in this case) of the
 		    // iterator
 		    Node runningNode(const InArcIt &e) const {
 		      return Parent::source(static_cast<const Arc&>(e));
+		    }
 		    // Base node of the iterator
 		    //
 		    // Returns the base node of the iterator
 		    Node baseNode(const IncEdgeIt &e) const {
 		      return e.direction ? u(e) : v(e);
+		    }
 		    // Running node of the iterator
 		    //
 		    // Returns the running node of the iterator
 		    Node runningNode(const IncEdgeIt &e) const {
 		      return e.direction ? v(e) : u(e);
+		    }
 		    template <typename _Value>
 		    class ArcMap
-		      : public MapExtender<DefaultMap<Digraph, Arc, _Value> > {
+		      : public MapExtender<DefaultMap<Graph, Arc, _Value> > {
 		      typedef MapExtender<DefaultMap<Graph, Arc, _Value> > Parent;
 		    public:
 		      typedef EdgeSetExtender Digraph;
 		      typedef MapExtender<DefaultMap<Digraph, Arc, _Value> > Parent;
 		      ArcMap(const Digraph& _g)
 		      ArcMap(const Graph& _g)
 			: Parent(_g) {}
-		      ArcMap(const Digraph& _g, const _Value& _v)
+		      ArcMap(const Graph& _g, const _Value& _v)
 			: Parent(_g, _v) {}
 		      ArcMap& operator=(const ArcMap& cmap) {
 			return operator=<ArcMap>(cmap);
+		      }
 		      template <typename CMap>
 		      ArcMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 			return *this;
+		      }
 		    };
 		    template <typename _Value>
 		    class EdgeMap
-		      : public MapExtender<DefaultMap<Digraph, Edge, _Value> > {
+		      : public MapExtender<DefaultMap<Graph, Edge, _Value> > {
 		      typedef MapExtender<DefaultMap<Graph, Edge, _Value> > Parent;
 		    public:
 		      typedef EdgeSetExtender Digraph;
 		      typedef MapExtender<DefaultMap<Digraph, Edge, _Value> > Parent;
 		      EdgeMap(const Digraph& _g)
 		      EdgeMap(const Graph& _g)
 			: Parent(_g) {}
-		      EdgeMap(const Digraph& _g, const _Value& _v)
+		      EdgeMap(const Graph& _g, const _Value& _v)
 			: Parent(_g, _v) {}
 		      EdgeMap& operator=(const EdgeMap& cmap) {
 			return operator=<EdgeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      EdgeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 			return *this;
+		      }
 		    };
 		    // Alteration extension
 		    Edge addEdge(const Node& from, const Node& to) {
 		      Edge edge = Parent::addEdge(from, to);
 		      notifier(Edge()).add(edge);
 		      std::vector<Arc> arcs;
 		      arcs.push_back(Parent::direct(edge, true));
 		      arcs.push_back(Parent::direct(edge, false));
 		      notifier(Arc()).add(arcs);
 		      return edge;
+		    }
 		    void clear() {
 		      notifier(Arc()).clear();
 		      notifier(Edge()).clear();
 		      Parent::clear();
+		    }
 		    void erase(const Edge& edge) {
 		      std::vector<Arc> arcs;
 		      arcs.push_back(Parent::direct(edge, true));
 		      arcs.push_back(Parent::direct(edge, false));
 		      notifier(Arc()).erase(arcs);
 		      notifier(Edge()).erase(edge);
 		      Parent::erase(edge);
+		    }
 		    EdgeSetExtender() {
 		      arc_notifier.setContainer(*this);
 		      edge_notifier.setContainer(*this);
+		    }
 		    ~EdgeSetExtender() {
 		      edge_notifier.clear();
 		      arc_notifier.clear();
+		    }
 		  };
+		}
 		#endif

lemon/bits/graph_adaptor_extender.h

Show inline comments

 		/* -*- mode: C++; indent-tabs-mode: nil; -*-
+		 *
 		 * This file is a part of LEMON, a generic C++ optimization library.
+		 *
 		 * Copyright (C) 2003-2009
 		 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 		 * (Egervary Research Group on Combinatorial Optimization, EGRES).
+		 *
 		 * Permission to use, modify and distribute this software is granted
 		 * provided that this copyright notice appears in all copies. For
 		 * precise terms see the accompanying LICENSE file.
+		 *
 		 * This software is provided "AS IS" with no warranty of any kind,
 		 * express or implied, and with no claim as to its suitability for any
 		 * purpose.
+		 *
 		 */
 		#ifndef LEMON_BITS_GRAPH_ADAPTOR_EXTENDER_H
 		#define LEMON_BITS_GRAPH_ADAPTOR_EXTENDER_H
 		#include <lemon/core.h>
 		#include <lemon/error.h>
 		namespace lemon {
 		  template <typename _Digraph>
 		  class DigraphAdaptorExtender : public _Digraph {
 		    typedef _Digraph Parent;
 		  public:
 		    typedef _Digraph Parent;
 		    typedef _Digraph Digraph;
 		    typedef DigraphAdaptorExtender Adaptor;
 		    // Base extensions
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    int maxId(Node) const {
 		      return Parent::maxNodeId();
+		    }
 		    int maxId(Arc) const {
 		      return Parent::maxArcId();
+		    }
 		    Node fromId(int id, Node) const {
 		      return Parent::nodeFromId(id);
+		    }
 		    Arc fromId(int id, Arc) const {
 		      return Parent::arcFromId(id);
+		    }
 		    Node oppositeNode(const Node &n, const Arc &e) const {
 		      if (n == Parent::source(e))
 		        return Parent::target(e);
 		      else if(n==Parent::target(e))
 		        return Parent::source(e);
 		      else
 		        return INVALID;
+		    }
 		    class NodeIt : public Node {
 		      const Adaptor* _adaptor;
 		    public:
 		      NodeIt() {}
 		      NodeIt(Invalid i) : Node(i) { }
 		      explicit NodeIt(const Adaptor& adaptor) : _adaptor(&adaptor) {
 		        _adaptor->first(static_cast<Node&>(*this));
+		      }
 		      NodeIt(const Adaptor& adaptor, const Node& node)
 		        : Node(node), _adaptor(&adaptor) {}
 		      NodeIt& operator++() {
 		        _adaptor->next(*this);
 		        return *this;
+		      }
 		    };
 		    class ArcIt : public Arc {
 		      const Adaptor* _adaptor;
 		    public:
 		      ArcIt() { }
 		      ArcIt(Invalid i) : Arc(i) { }
 		      explicit ArcIt(const Adaptor& adaptor) : _adaptor(&adaptor) {
 		        _adaptor->first(static_cast<Arc&>(*this));
+		      }
 		      ArcIt(const Adaptor& adaptor, const Arc& e) :
 		        Arc(e), _adaptor(&adaptor) { }
 		      ArcIt& operator++() {
 		        _adaptor->next(*this);
 		        return *this;
+		      }
 		    };
 		    class OutArcIt : public Arc {
 		      const Adaptor* _adaptor;
 		    public:
 		      OutArcIt() { }
 		      OutArcIt(Invalid i) : Arc(i) { }
 		      OutArcIt(const Adaptor& adaptor, const Node& node)
 		        : _adaptor(&adaptor) {
 		        _adaptor->firstOut(*this, node);
+		      }
 		      OutArcIt(const Adaptor& adaptor, const Arc& arc)
 		        : Arc(arc), _adaptor(&adaptor) {}
 		      OutArcIt& operator++() {
 		        _adaptor->nextOut(*this);
 		        return *this;
+		      }
 		    };
 		    class InArcIt : public Arc {
 		      const Adaptor* _adaptor;
 		    public:
 		      InArcIt() { }
 		      InArcIt(Invalid i) : Arc(i) { }
 		      InArcIt(const Adaptor& adaptor, const Node& node)
 		        : _adaptor(&adaptor) {
 		        _adaptor->firstIn(*this, node);
+		      }
 		      InArcIt(const Adaptor& adaptor, const Arc& arc) :
 		        Arc(arc), _adaptor(&adaptor) {}
 		      InArcIt& operator++() {
 		        _adaptor->nextIn(*this);
 		        return *this;
+		      }
 		    };
 		    Node baseNode(const OutArcIt &e) const {
 		      return Parent::source(e);
+		    }
 		    Node runningNode(const OutArcIt &e) const {
 		      return Parent::target(e);
+		    }
 		    Node baseNode(const InArcIt &e) const {
 		      return Parent::target(e);
+		    }
 		    Node runningNode(const InArcIt &e) const {
 		      return Parent::source(e);
+		    }
 		  };
 		  template <typename _Graph>
 		  class GraphAdaptorExtender : public _Graph {
 		    typedef _Graph Parent;
 		  public:
 		    typedef _Graph Parent;
 		    typedef _Graph Graph;
 		    typedef GraphAdaptorExtender Adaptor;
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    typedef typename Parent::Edge Edge;
 		    // Graph extension
 		    int maxId(Node) const {
 		      return Parent::maxNodeId();
+		    }
 		    int maxId(Arc) const {
 		      return Parent::maxArcId();
+		    }
 		    int maxId(Edge) const {
 		      return Parent::maxEdgeId();
+		    }
 		    Node fromId(int id, Node) const {
 		      return Parent::nodeFromId(id);
+		    }
 		    Arc fromId(int id, Arc) const {
 		      return Parent::arcFromId(id);
+		    }
 		    Edge fromId(int id, Edge) const {
 		      return Parent::edgeFromId(id);
+		    }
 		    Node oppositeNode(const Node &n, const Edge &e) const {
 		      if( n == Parent::u(e))
 		        return Parent::v(e);
 		      else if( n == Parent::v(e))
 		        return Parent::u(e);
 		      else
 		        return INVALID;
+		    }
 		    Arc oppositeArc(const Arc &a) const {
 		      return Parent::direct(a, !Parent::direction(a));
+		    }
 		    using Parent::direct;
 		    Arc direct(const Edge &e, const Node &s) const {
 		      return Parent::direct(e, Parent::u(e) == s);
+		    }
 		    class NodeIt : public Node {
 		      const Adaptor* _adaptor;
 		    public:
 		      NodeIt() {}
 		      NodeIt(Invalid i) : Node(i) { }
 		      explicit NodeIt(const Adaptor& adaptor) : _adaptor(&adaptor) {
 		        _adaptor->first(static_cast<Node&>(*this));
+		      }
 		      NodeIt(const Adaptor& adaptor, const Node& node)
 		        : Node(node), _adaptor(&adaptor) {}
 		      NodeIt& operator++() {
 		        _adaptor->next(*this);
 		        return *this;
+		      }
 		    };
 		    class ArcIt : public Arc {
 		      const Adaptor* _adaptor;
 		    public:
 		      ArcIt() { }
 		      ArcIt(Invalid i) : Arc(i) { }
 		      explicit ArcIt(const Adaptor& adaptor) : _adaptor(&adaptor) {
 		        _adaptor->first(static_cast<Arc&>(*this));
+		      }
 		      ArcIt(const Adaptor& adaptor, const Arc& e) :
 		        Arc(e), _adaptor(&adaptor) { }
 		      ArcIt& operator++() {
 		        _adaptor->next(*this);
 		        return *this;
+		      }
 		    };
 		    class OutArcIt : public Arc {
 		      const Adaptor* _adaptor;
 		    public:
 		      OutArcIt() { }
 		      OutArcIt(Invalid i) : Arc(i) { }
 		      OutArcIt(const Adaptor& adaptor, const Node& node)
 		        : _adaptor(&adaptor) {
 		        _adaptor->firstOut(*this, node);
+		      }
 		      OutArcIt(const Adaptor& adaptor, const Arc& arc)
 		        : Arc(arc), _adaptor(&adaptor) {}
 		      OutArcIt& operator++() {
 		        _adaptor->nextOut(*this);
 		        return *this;
+		      }
 		    };
 		    class InArcIt : public Arc {
 		      const Adaptor* _adaptor;
 		    public:
 		      InArcIt() { }
 		      InArcIt(Invalid i) : Arc(i) { }
 		      InArcIt(const Adaptor& adaptor, const Node& node)
 		        : _adaptor(&adaptor) {
 		        _adaptor->firstIn(*this, node);
+		      }
 		      InArcIt(const Adaptor& adaptor, const Arc& arc) :
 		        Arc(arc), _adaptor(&adaptor) {}
 		      InArcIt& operator++() {
 		        _adaptor->nextIn(*this);
 		        return *this;
+		      }
 		    };
 		    class EdgeIt : public Parent::Edge {
 		      const Adaptor* _adaptor;
 		    public:
 		      EdgeIt() { }
 		      EdgeIt(Invalid i) : Edge(i) { }
 		      explicit EdgeIt(const Adaptor& adaptor) : _adaptor(&adaptor) {
 		        _adaptor->first(static_cast<Edge&>(*this));
+		      }
 		      EdgeIt(const Adaptor& adaptor, const Edge& e) :
 		        Edge(e), _adaptor(&adaptor) { }
 		      EdgeIt& operator++() {
 		        _adaptor->next(*this);
 		        return *this;
+		      }
 		    };
 		    class IncEdgeIt : public Edge {
 		      friend class GraphAdaptorExtender;
 		      const Adaptor* _adaptor;
 		      bool direction;
 		    public:
 		      IncEdgeIt() { }
 		      IncEdgeIt(Invalid i) : Edge(i), direction(false) { }
 		      IncEdgeIt(const Adaptor& adaptor, const Node &n) : _adaptor(&adaptor) {
 		        _adaptor->firstInc(static_cast<Edge&>(*this), direction, n);
+		      }
 		      IncEdgeIt(const Adaptor& adaptor, const Edge &e, const Node &n)
 		        : _adaptor(&adaptor), Edge(e) {
 		        direction = (_adaptor->u(e) == n);
+		      }
 		      IncEdgeIt& operator++() {
 		        _adaptor->nextInc(*this, direction);
 		        return *this;
+		      }
 		    };
 		    Node baseNode(const OutArcIt &a) const {
 		      return Parent::source(a);
+		    }
 		    Node runningNode(const OutArcIt &a) const {
 		      return Parent::target(a);
+		    }
 		    Node baseNode(const InArcIt &a) const {
 		      return Parent::target(a);
+		    }
 		    Node runningNode(const InArcIt &a) const {
 		      return Parent::source(a);
+		    }
 		    Node baseNode(const IncEdgeIt &e) const {
 		      return e.direction ? Parent::u(e) : Parent::v(e);
+		    }
 		    Node runningNode(const IncEdgeIt &e) const {
 		      return e.direction ? Parent::v(e) : Parent::u(e);
+		    }
 		  };
+		}
 		#endif

lemon/bits/graph_extender.h

Show inline comments

 		/* -*- mode: C++; indent-tabs-mode: nil; -*-
+		 *
 		 * This file is a part of LEMON, a generic C++ optimization library.
+		 *
 		 * Copyright (C) 2003-2009
 		 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 		 * (Egervary Research Group on Combinatorial Optimization, EGRES).
+		 *
 		 * Permission to use, modify and distribute this software is granted
 		 * provided that this copyright notice appears in all copies. For
 		 * precise terms see the accompanying LICENSE file.
+		 *
 		 * This software is provided "AS IS" with no warranty of any kind,
 		 * express or implied, and with no claim as to its suitability for any
 		 * purpose.
+		 *
 		 */
 		#ifndef LEMON_BITS_GRAPH_EXTENDER_H
 		#define LEMON_BITS_GRAPH_EXTENDER_H
 		#include <lemon/core.h>
 		#include <lemon/bits/map_extender.h>
 		#include <lemon/bits/default_map.h>
 		#include <lemon/concept_check.h>
 		#include <lemon/concepts/maps.h>
 		//\ingroup graphbits
 		//\file
 		//\brief Extenders for the graph types
 		namespace lemon {
 		  // \ingroup graphbits
 		  //
 		  // \brief Extender for the digraph implementations
 		  template <typename Base>
 		  class DigraphExtender : public Base {
 		    typedef Base Parent;
 		  public:
 		    typedef Base Parent;
 		    typedef DigraphExtender Digraph;
 		    // Base extensions
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    int maxId(Node) const {
 		      return Parent::maxNodeId();
+		    }
 		    int maxId(Arc) const {
 		      return Parent::maxArcId();
+		    }
 		    Node fromId(int id, Node) const {
 		      return Parent::nodeFromId(id);
+		    }
 		    Arc fromId(int id, Arc) const {
 		      return Parent::arcFromId(id);
+		    }
 		    Node oppositeNode(const Node &node, const Arc &arc) const {
 		      if (node == Parent::source(arc))
 		        return Parent::target(arc);
 		      else if(node == Parent::target(arc))
 		        return Parent::source(arc);
 		      else
 		        return INVALID;
+		    }
 		    // Alterable extension
 		    typedef AlterationNotifier<DigraphExtender, Node> NodeNotifier;
 		    typedef AlterationNotifier<DigraphExtender, Arc> ArcNotifier;
 		  protected:
 		    mutable NodeNotifier node_notifier;
 		    mutable ArcNotifier arc_notifier;
 		  public:
 		    NodeNotifier& notifier(Node) const {
 		      return node_notifier;
+		    }
 		    ArcNotifier& notifier(Arc) const {
 		      return arc_notifier;
+		    }
 		    class NodeIt : public Node {
 		      const Digraph* _digraph;
 		    public:
 		      NodeIt() {}
 		      NodeIt(Invalid i) : Node(i) { }
 		      explicit NodeIt(const Digraph& digraph) : _digraph(&digraph) {
 		        _digraph->first(static_cast<Node&>(*this));
+		      }
 		      NodeIt(const Digraph& digraph, const Node& node)
 		        : Node(node), _digraph(&digraph) {}
 		      NodeIt& operator++() {
 		        _digraph->next(*this);
 		        return *this;
+		      }
 		    };
 		    class ArcIt : public Arc {
 		      const Digraph* _digraph;
 		    public:
 		      ArcIt() { }
 		      ArcIt(Invalid i) : Arc(i) { }
 		      explicit ArcIt(const Digraph& digraph) : _digraph(&digraph) {
 		        _digraph->first(static_cast<Arc&>(*this));
+		      }
 		      ArcIt(const Digraph& digraph, const Arc& arc) :
 		        Arc(arc), _digraph(&digraph) { }
 		      ArcIt& operator++() {
 		        _digraph->next(*this);
 		        return *this;
+		      }
 		    };
 		    class OutArcIt : public Arc {
 		      const Digraph* _digraph;
 		    public:
 		      OutArcIt() { }
 		      OutArcIt(Invalid i) : Arc(i) { }
 		      OutArcIt(const Digraph& digraph, const Node& node)
 		        : _digraph(&digraph) {
 		        _digraph->firstOut(*this, node);
+		      }
 		      OutArcIt(const Digraph& digraph, const Arc& arc)
 		        : Arc(arc), _digraph(&digraph) {}
 		      OutArcIt& operator++() {
 		        _digraph->nextOut(*this);
 		        return *this;
+		      }
 		    };
 		    class InArcIt : public Arc {
 		      const Digraph* _digraph;
 		    public:
 		      InArcIt() { }
 		      InArcIt(Invalid i) : Arc(i) { }
 		      InArcIt(const Digraph& digraph, const Node& node)
 		        : _digraph(&digraph) {
 		        _digraph->firstIn(*this, node);
+		      }
 		      InArcIt(const Digraph& digraph, const Arc& arc) :
 		        Arc(arc), _digraph(&digraph) {}
 		      InArcIt& operator++() {
 		        _digraph->nextIn(*this);
 		        return *this;
+		      }
 		    };
 		    // \brief Base node of the iterator
 		    //
 		    // Returns the base node (i.e. the source in this case) of the iterator
 		    Node baseNode(const OutArcIt &arc) const {
 		      return Parent::source(arc);
+		    }
 		    // \brief Running node of the iterator
 		    //
 		    // Returns the running node (i.e. the target in this case) of the
 		    // iterator
 		    Node runningNode(const OutArcIt &arc) const {
 		      return Parent::target(arc);
+		    }
 		    // \brief Base node of the iterator
 		    //
 		    // Returns the base node (i.e. the target in this case) of the iterator
 		    Node baseNode(const InArcIt &arc) const {
 		      return Parent::target(arc);
+		    }
 		    // \brief Running node of the iterator
 		    //
 		    // Returns the running node (i.e. the source in this case) of the
 		    // iterator
 		    Node runningNode(const InArcIt &arc) const {
 		      return Parent::source(arc);
+		    }
 		    template <typename _Value>
 		    class NodeMap
 		      : public MapExtender<DefaultMap<Digraph, Node, _Value> > {
 		    public:
 		      typedef DigraphExtender Digraph;
 		      typedef MapExtender<DefaultMap<Digraph, Node, _Value> > Parent;
 		    public:
 		      explicit NodeMap(const Digraph& digraph)
 		        : Parent(digraph) {}
 		      NodeMap(const Digraph& digraph, const _Value& value)
 		        : Parent(digraph, 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 _Value>
 		    class ArcMap
 		      : public MapExtender<DefaultMap<Digraph, Arc, _Value> > {
 		    public:
 		      typedef DigraphExtender Digraph;
 		      typedef MapExtender<DefaultMap<Digraph, Arc, _Value> > Parent;
 		    public:
 		      explicit ArcMap(const Digraph& digraph)
 		        : Parent(digraph) {}
 		      ArcMap(const Digraph& digraph, const _Value& value)
 		        : Parent(digraph, value) {}
 		    private:
 		      ArcMap& operator=(const ArcMap& cmap) {
 		        return operator=<ArcMap>(cmap);
+		      }
 		      template <typename CMap>
 		      ArcMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    Node addNode() {
 		      Node node = Parent::addNode();
 		      notifier(Node()).add(node);
 		      return node;
+		    }
 		    Arc addArc(const Node& from, const Node& to) {
 		      Arc arc = Parent::addArc(from, to);
 		      notifier(Arc()).add(arc);
 		      return arc;
+		    }
 		    void clear() {
 		      notifier(Arc()).clear();
 		      notifier(Node()).clear();
 		      Parent::clear();
+		    }
 		    template <typename Digraph, typename NodeRefMap, typename ArcRefMap>
 		    void build(const Digraph& digraph, NodeRefMap& nodeRef, ArcRefMap& arcRef) {
 		      Parent::build(digraph, nodeRef, arcRef);
 		      notifier(Node()).build();
 		      notifier(Arc()).build();
+		    }
 		    void erase(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);
+		      }
 		      notifier(Node()).erase(node);
 		      Parent::erase(node);
+		    }
 		    void erase(const Arc& arc) {
 		      notifier(Arc()).erase(arc);
 		      Parent::erase(arc);
+		    }
 		    DigraphExtender() {
 		      node_notifier.setContainer(*this);
 		      arc_notifier.setContainer(*this);
+		    }
 		    ~DigraphExtender() {
 		      arc_notifier.clear();
 		      node_notifier.clear();
+		    }
 		  };
 		  // \ingroup _graphbits
 		  //
 		  // \brief Extender for the Graphs
 		  template <typename Base>
 		  class GraphExtender : public Base {
 		    typedef Base Parent;
 		  public:
 		    typedef Base Parent;
 		    typedef GraphExtender Graph;
 		    typedef True UndirectedTag;
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    typedef typename Parent::Edge Edge;
 		    // Graph extension
 		    int maxId(Node) const {
 		      return Parent::maxNodeId();
+		    }
 		    int maxId(Arc) const {
 		      return Parent::maxArcId();
+		    }
 		    int maxId(Edge) const {
 		      return Parent::maxEdgeId();
+		    }
 		    Node fromId(int id, Node) const {
 		      return Parent::nodeFromId(id);
+		    }
 		    Arc fromId(int id, Arc) const {
 		      return Parent::arcFromId(id);
+		    }
 		    Edge fromId(int id, Edge) const {
 		      return Parent::edgeFromId(id);
+		    }
 		    Node oppositeNode(const Node &n, const Edge &e) const {
 		      if( n == Parent::u(e))
 		        return Parent::v(e);
 		      else if( n == Parent::v(e))
 		        return Parent::u(e);
 		      else
 		        return INVALID;
+		    }
 		    Arc oppositeArc(const Arc &arc) const {
 		      return Parent::direct(arc, !Parent::direction(arc));
+		    }
 		    using Parent::direct;
 		    Arc direct(const Edge &edge, const Node &node) const {
 		      return Parent::direct(edge, Parent::u(edge) == node);
+		    }
 		    // Alterable extension
 		    typedef AlterationNotifier<GraphExtender, Node> NodeNotifier;
 		    typedef AlterationNotifier<GraphExtender, Arc> ArcNotifier;
 		    typedef AlterationNotifier<GraphExtender, Edge> EdgeNotifier;
 		  protected:
 		    mutable NodeNotifier node_notifier;
 		    mutable ArcNotifier arc_notifier;
 		    mutable EdgeNotifier edge_notifier;
 		  public:
 		    NodeNotifier& notifier(Node) const {
 		      return node_notifier;
+		    }
 		    ArcNotifier& notifier(Arc) const {
 		      return arc_notifier;
+		    }
 		    EdgeNotifier& notifier(Edge) const {
 		      return edge_notifier;
+		    }
 		    class NodeIt : public Node {
 		      const Graph* _graph;
 		    public:
 		      NodeIt() {}
 		      NodeIt(Invalid i) : Node(i) { }
 		      explicit NodeIt(const Graph& graph) : _graph(&graph) {
 		        _graph->first(static_cast<Node&>(*this));
+		      }
 		      NodeIt(const Graph& graph, const Node& node)
 		        : Node(node), _graph(&graph) {}
 		      NodeIt& operator++() {
 		        _graph->next(*this);
 		        return *this;
+		      }
 		    };
 		    class ArcIt : public Arc {
 		      const Graph* _graph;
 		    public:
 		      ArcIt() { }
 		      ArcIt(Invalid i) : Arc(i) { }
 		      explicit ArcIt(const Graph& graph) : _graph(&graph) {
 		        _graph->first(static_cast<Arc&>(*this));
+		      }
 		      ArcIt(const Graph& graph, const Arc& arc) :
 		        Arc(arc), _graph(&graph) { }
 		      ArcIt& operator++() {
 		        _graph->next(*this);
 		        return *this;
+		      }
 		    };
 		    class OutArcIt : public Arc {
 		      const Graph* _graph;
 		    public:
 		      OutArcIt() { }
 		      OutArcIt(Invalid i) : Arc(i) { }
 		      OutArcIt(const Graph& graph, const Node& node)
 		        : _graph(&graph) {
 		        _graph->firstOut(*this, node);
+		      }
 		      OutArcIt(const Graph& graph, const Arc& arc)
 		        : Arc(arc), _graph(&graph) {}
 		      OutArcIt& operator++() {
 		        _graph->nextOut(*this);
 		        return *this;
+		      }
 		    };
 		    class InArcIt : public Arc {
 		      const Graph* _graph;
 		    public:
 		      InArcIt() { }
 		      InArcIt(Invalid i) : Arc(i) { }
 		      InArcIt(const Graph& graph, const Node& node)
 		        : _graph(&graph) {
 		        _graph->firstIn(*this, node);
+		      }
 		      InArcIt(const Graph& graph, const Arc& arc) :
 		        Arc(arc), _graph(&graph) {}
 		      InArcIt& operator++() {
 		        _graph->nextIn(*this);
 		        return *this;
+		      }
 		    };
 		    class EdgeIt : public Parent::Edge {
 		      const Graph* _graph;
 		    public:
 		      EdgeIt() { }
 		      EdgeIt(Invalid i) : Edge(i) { }
 		      explicit EdgeIt(const Graph& graph) : _graph(&graph) {
 		        _graph->first(static_cast<Edge&>(*this));
+		      }
 		      EdgeIt(const Graph& graph, const Edge& edge) :
 		        Edge(edge), _graph(&graph) { }
 		      EdgeIt& operator++() {
 		        _graph->next(*this);
 		        return *this;
+		      }
 		    };
 		    class IncEdgeIt : public Parent::Edge {
 		      friend class GraphExtender;
 		      const Graph* _graph;
 		      bool _direction;
 		    public:
 		      IncEdgeIt() { }
 		      IncEdgeIt(Invalid i) : Edge(i), _direction(false) { }
 		      IncEdgeIt(const Graph& graph, const Node &node) : _graph(&graph) {
 		        _graph->firstInc(*this, _direction, node);
+		      }
 		      IncEdgeIt(const Graph& graph, const Edge &edge, const Node &node)
 		        : _graph(&graph), Edge(edge) {
 		        _direction = (_graph->source(edge) == node);
+		      }
 		      IncEdgeIt& operator++() {
 		        _graph->nextInc(*this, _direction);
 		        return *this;
+		      }
 		    };
 		    // \brief Base node of the iterator
 		    //
 		    // Returns the base node (ie. the source in this case) of the iterator
 		    Node baseNode(const OutArcIt &arc) const {
 		      return Parent::source(static_cast<const Arc&>(arc));
+		    }
 		    // \brief Running node of the iterator
 		    //
 		    // Returns the running node (ie. the target in this case) of the
 		    // iterator
 		    Node runningNode(const OutArcIt &arc) const {
 		      return Parent::target(static_cast<const Arc&>(arc));
+		    }
 		    // \brief Base node of the iterator
 		    //
 		    // Returns the base node (ie. the target in this case) of the iterator
 		    Node baseNode(const InArcIt &arc) const {
 		      return Parent::target(static_cast<const Arc&>(arc));
+		    }
 		    // \brief Running node of the iterator
 		    //
 		    // Returns the running node (ie. the source in this case) of the
 		    // iterator
 		    Node runningNode(const InArcIt &arc) const {
 		      return Parent::source(static_cast<const Arc&>(arc));
+		    }
 		    // Base node of the iterator
 		    //
 		    // Returns the base node of the iterator
 		    Node baseNode(const IncEdgeIt &edge) const {
 		      return edge._direction ? u(edge) : v(edge);
+		    }
 		    // Running node of the iterator
 		    //
 		    // Returns the running node of the iterator
 		    Node runningNode(const IncEdgeIt &edge) const {
 		      return edge._direction ? v(edge) : u(edge);
+		    }
 		    // Mappable extension
 		    template <typename _Value>
 		    class NodeMap
 		      : public MapExtender<DefaultMap<Graph, Node, _Value> > {
 		    public:
 		      typedef GraphExtender Graph;
 		      typedef MapExtender<DefaultMap<Graph, Node, _Value> > Parent;
 		    public:
 		      NodeMap(const Graph& graph)
 		        : Parent(graph) {}
 		      NodeMap(const Graph& graph, const _Value& value)
 		        : Parent(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 _Value>
 		    class ArcMap
 		      : public MapExtender<DefaultMap<Graph, Arc, _Value> > {
 		    public:
 		      typedef GraphExtender Graph;
 		      typedef MapExtender<DefaultMap<Graph, Arc, _Value> > Parent;
 		    public:
 		      ArcMap(const Graph& graph)
 		        : Parent(graph) {}
 		      ArcMap(const Graph& graph, const _Value& value)
 		        : Parent(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 _Value>
 		    class EdgeMap
 		      : public MapExtender<DefaultMap<Graph, Edge, _Value> > {
 		    public:
 		      typedef GraphExtender Graph;
 		      typedef MapExtender<DefaultMap<Graph, Edge, _Value> > Parent;
 		    public:
 		      EdgeMap(const Graph& graph)
 		        : Parent(graph) {}
 		      EdgeMap(const Graph& graph, const _Value& value)
 		        : Parent(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;
+		      }
 		    };
 		    // Alteration extension
 		    Node addNode() {
 		      Node node = Parent::addNode();
 		      notifier(Node()).add(node);
 		      return node;
+		    }
 		    Edge addEdge(const Node& from, const Node& to) {
 		      Edge edge = Parent::addEdge(from, to);
 		      notifier(Edge()).add(edge);
 		      std::vector<Arc> ev;
 		      ev.push_back(Parent::direct(edge, true));
 		      ev.push_back(Parent::direct(edge, false));
 		      notifier(Arc()).add(ev);
 		      return edge;
+		    }
 		    void clear() {
 		      notifier(Arc()).clear();
 		      notifier(Edge()).clear();
 		      notifier(Node()).clear();
 		      Parent::clear();
+		    }
 		    template <typename Graph, typename NodeRefMap, typename EdgeRefMap>
 		    void build(const Graph& graph, NodeRefMap& nodeRef,
 		               EdgeRefMap& edgeRef) {
 		      Parent::build(graph, nodeRef, edgeRef);
 		      notifier(Node()).build();
 		      notifier(Edge()).build();
 		      notifier(Arc()).build();
+		    }
 		    void erase(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);
+		      }
 		      notifier(Node()).erase(node);
 		      Parent::erase(node);
+		    }
 		    void erase(const Edge& edge) {
 		      std::vector<Arc> av;
 		      av.push_back(Parent::direct(edge, true));
 		      av.push_back(Parent::direct(edge, false));
 		      notifier(Arc()).erase(av);
 		      notifier(Edge()).erase(edge);
 		      Parent::erase(edge);
+		    }
 		    GraphExtender() {
 		      node_notifier.setContainer(*this);
 		      arc_notifier.setContainer(*this);
 		      edge_notifier.setContainer(*this);
+		    }
 		    ~GraphExtender() {
 		      edge_notifier.clear();
 		      arc_notifier.clear();
 		      node_notifier.clear();
+		    }
 		  };
+		}
 		#endif

lemon/bits/map_extender.h

Show inline comments

 		/* -*- mode: C++; indent-tabs-mode: nil; -*-
+		 *
 		 * This file is a part of LEMON, a generic C++ optimization library.
+		 *
 		 * Copyright (C) 2003-2009
 		 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 		 * (Egervary Research Group on Combinatorial Optimization, EGRES).
+		 *
 		 * Permission to use, modify and distribute this software is granted
 		 * provided that this copyright notice appears in all copies. For
 		 * precise terms see the accompanying LICENSE file.
+		 *
 		 * This software is provided "AS IS" with no warranty of any kind,
 		 * express or implied, and with no claim as to its suitability for any
 		 * purpose.
+		 *
 		 */
 		#ifndef LEMON_BITS_MAP_EXTENDER_H
 		#define LEMON_BITS_MAP_EXTENDER_H
 		#include <iterator>
 		#include <lemon/bits/traits.h>
 		#include <lemon/concept_check.h>
 		#include <lemon/concepts/maps.h>
 		//\file
 		//\brief Extenders for iterable maps.
 		namespace lemon {
 		  // \ingroup graphbits
 		  //
 		  // \brief Extender for maps
 		  template <typename _Map>
 		  class MapExtender : public _Map {
 		    typedef _Map Parent;
 		    typedef typename Parent::GraphType GraphType;
 		  public:
 		    typedef _Map Parent;
 		    typedef MapExtender Map;
 		    typedef typename Parent::Graph Graph;
 		    typedef typename Parent::Key Item;
 		    typedef typename Parent::Key Key;
 		    typedef typename Parent::Value Value;
 		    typedef typename Parent::Reference Reference;
 		    typedef typename Parent::ConstReference ConstReference;
 		    class MapIt;
 		    class ConstMapIt;
 		    friend class MapIt;
 		    friend class ConstMapIt;
 		  public:
-		    MapExtender(const Graph& graph)
+		    MapExtender(const GraphType& graph)
 		      : Parent(graph) {}
-		    MapExtender(const Graph& graph, const Value& value)
+		    MapExtender(const GraphType& graph, const Value& value)
 		      : Parent(graph, value) {}
 		  private:
 		    MapExtender& operator=(const MapExtender& cmap) {
 		      return operator=<MapExtender>(cmap);
+		    }
 		    template <typename CMap>
 		    MapExtender& operator=(const CMap& cmap) {
 		      Parent::operator=(cmap);
 		      return *this;
+		    }
 		  public:
 		    class MapIt : public Item {
 		      typedef Item Parent;
 		    public:
 		      typedef Item Parent;
 		      typedef typename Map::Value Value;
 		      MapIt() {}
 		      MapIt(Invalid i) : Parent(i) { }
 		      explicit MapIt(Map& _map) : map(_map) {
 		        map.notifier()->first(*this);
+		      }
 		      MapIt(const Map& _map, const Item& item)
 		        : Parent(item), map(_map) {}
 		      MapIt& operator++() {
 		        map.notifier()->next(*this);
 		        return *this;
+		      }
 		      typename MapTraits<Map>::ConstReturnValue operator*() const {
 		        return map[*this];
+		      }
 		      typename MapTraits<Map>::ReturnValue operator*() {
 		        return map[*this];
+		      }
 		      void set(const Value& value) {
 		        map.set(*this, value);
+		      }
 		    protected:
 		      Map& map;
 		    };
 		    class ConstMapIt : public Item {
 		      typedef Item Parent;
 		    public:
 		      typedef Item Parent;
 		      typedef typename Map::Value Value;
 		      ConstMapIt() {}
 		      ConstMapIt(Invalid i) : Parent(i) { }
 		      explicit ConstMapIt(Map& _map) : map(_map) {
 		        map.notifier()->first(*this);
+		      }
 		      ConstMapIt(const Map& _map, const Item& item)
 		        : Parent(item), map(_map) {}
 		      ConstMapIt& operator++() {
 		        map.notifier()->next(*this);
 		        return *this;
+		      }
 		      typename MapTraits<Map>::ConstReturnValue operator*() const {
 		        return map[*this];
+		      }
 		    protected:
 		      const Map& map;
 		    };
 		    class ItemIt : public Item {
 		      typedef Item Parent;
 		    public:
 		      typedef Item Parent;
 		      ItemIt() {}
 		      ItemIt(Invalid i) : Parent(i) { }
 		      explicit ItemIt(Map& _map) : map(_map) {
 		        map.notifier()->first(*this);
+		      }
 		      ItemIt(const Map& _map, const Item& item)
 		        : Parent(item), map(_map) {}
 		      ItemIt& operator++() {
 		        map.notifier()->next(*this);
 		        return *this;
+		      }
 		    protected:
 		      const Map& map;
 		    };
 		  };
 		  // \ingroup graphbits
 		  //
 		  // \brief Extender for maps which use a subset of the items.
 		  template <typename _Graph, typename _Map>
 		  class SubMapExtender : public _Map {
 		    typedef _Map Parent;
 		    typedef _Graph GraphType;
 		  public:
 		    typedef _Map Parent;
 		    typedef SubMapExtender Map;
 		    typedef _Graph Graph;
 		    typedef typename Parent::Key Item;
 		    typedef typename Parent::Key Key;
 		    typedef typename Parent::Value Value;
 		    typedef typename Parent::Reference Reference;
 		    typedef typename Parent::ConstReference ConstReference;
 		    class MapIt;
 		    class ConstMapIt;
 		    friend class MapIt;
 		    friend class ConstMapIt;
 		  public:
-		    SubMapExtender(const Graph& _graph)
+		    SubMapExtender(const GraphType& _graph)
 		      : Parent(_graph), graph(_graph) {}
-		    SubMapExtender(const Graph& _graph, const Value& _value)
+		    SubMapExtender(const GraphType& _graph, const Value& _value)
 		      : Parent(_graph, _value), graph(_graph) {}
 		  private:
 		    SubMapExtender& operator=(const SubMapExtender& cmap) {
 		      return operator=<MapExtender>(cmap);
+		    }
 		    template <typename CMap>
 		    SubMapExtender& operator=(const CMap& cmap) {
 		      checkConcept<concepts::ReadMap<Key, Value>, CMap>();
 		      Item it;
 		      for (graph.first(it); it != INVALID; graph.next(it)) {
 		        Parent::set(it, cmap[it]);
+		      }
 		      return *this;
+		    }
 		  public:
 		    class MapIt : public Item {
 		      typedef Item Parent;
 		    public:
 		      typedef Item Parent;
 		      typedef typename Map::Value Value;
 		      MapIt() {}
 		      MapIt(Invalid i) : Parent(i) { }
 		      explicit MapIt(Map& _map) : map(_map) {
 		        map.graph.first(*this);
+		      }
 		      MapIt(const Map& _map, const Item& item)
 		        : Parent(item), map(_map) {}
 		      MapIt& operator++() {
 		        map.graph.next(*this);
 		        return *this;
+		      }
 		      typename MapTraits<Map>::ConstReturnValue operator*() const {
 		        return map[*this];
+		      }
 		      typename MapTraits<Map>::ReturnValue operator*() {
 		        return map[*this];
+		      }
 		      void set(const Value& value) {
 		        map.set(*this, value);
+		      }
 		    protected:
 		      Map& map;
 		    };
 		    class ConstMapIt : public Item {
 		      typedef Item Parent;
 		    public:
 		      typedef Item Parent;
 		      typedef typename Map::Value Value;
 		      ConstMapIt() {}
 		      ConstMapIt(Invalid i) : Parent(i) { }
 		      explicit ConstMapIt(Map& _map) : map(_map) {
 		        map.graph.first(*this);
+		      }
 		      ConstMapIt(const Map& _map, const Item& item)
 		        : Parent(item), map(_map) {}
 		      ConstMapIt& operator++() {
 		        map.graph.next(*this);
 		        return *this;
+		      }
 		      typename MapTraits<Map>::ConstReturnValue operator*() const {
 		        return map[*this];
+		      }
 		    protected:
 		      const Map& map;
 		    };
 		    class ItemIt : public Item {
 		      typedef Item Parent;
 		    public:
 		      typedef Item Parent;
 		      ItemIt() {}
 		      ItemIt(Invalid i) : Parent(i) { }
 		      explicit ItemIt(Map& _map) : map(_map) {
 		        map.graph.first(*this);
+		      }
 		      ItemIt(const Map& _map, const Item& item)
 		        : Parent(item), map(_map) {}
 		      ItemIt& operator++() {
 		        map.graph.next(*this);
 		        return *this;
+		      }
 		    protected:
 		      const Map& map;
 		    };
 		  private:
-		    const Graph& graph;
+		    const GraphType& graph;
 		  };
+		}
 		#endif

lemon/bits/vector_map.h

Show inline comments

 		/* -*- mode: C++; indent-tabs-mode: nil; -*-
+		 *
 		 * This file is a part of LEMON, a generic C++ optimization library.
+		 *
 		 * Copyright (C) 2003-2009
 		 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 		 * (Egervary Research Group on Combinatorial Optimization, EGRES).
+		 *
 		 * Permission to use, modify and distribute this software is granted
 		 * provided that this copyright notice appears in all copies. For
 		 * precise terms see the accompanying LICENSE file.
+		 *
 		 * This software is provided "AS IS" with no warranty of any kind,
 		 * express or implied, and with no claim as to its suitability for any
 		 * purpose.
+		 *
 		 */
 		#ifndef LEMON_BITS_VECTOR_MAP_H
 		#define LEMON_BITS_VECTOR_MAP_H
 		#include <vector>
 		#include <algorithm>
 		#include <lemon/core.h>
 		#include <lemon/bits/alteration_notifier.h>
 		#include <lemon/concept_check.h>
 		#include <lemon/concepts/maps.h>
 		//\ingroup graphbits
 		//
 		//\file
 		//\brief Vector based graph maps.
 		namespace lemon {
 		  // \ingroup graphbits
 		  //
 		  // \brief Graph map based on the std::vector storage.
 		  //
 		  // The VectorMap template class is graph map structure that automatically
 		  // updates the map when a key is added to or erased from the graph.
 		  // This map type uses std::vector to store the values.
 		  //
 		  // \tparam _Graph The graph this map is attached to.
 		  // \tparam _Item The item type of the graph items.
 		  // \tparam _Value The value type of the map.
 		  template <typename _Graph, typename _Item, typename _Value>
 		  class VectorMap
 		    : public ItemSetTraits<_Graph, _Item>::ItemNotifier::ObserverBase {
 		  private:
 		    // The container type of the map.
 		    typedef std::vector<_Value> Container;
 		  public:
 		    // The graph type of the map.
-		    typedef _Graph Graph;
+		    typedef _Graph GraphType;
 		    // The item type of the map.
 		    typedef _Item Item;
 		    // The reference map tag.
 		    typedef True ReferenceMapTag;
 		    // The key type of the map.
 		    typedef _Item Key;
 		    // The value type of the map.
 		    typedef _Value Value;
 		    // The notifier type.
 		    typedef typename ItemSetTraits<_Graph, _Item>::ItemNotifier Notifier;
 		    // The map type.
 		    typedef VectorMap Map;
 		    // The base class of the map.
 		    typedef typename Notifier::ObserverBase Parent;
 		    // The reference type of the map;
 		    typedef typename Container::reference Reference;
 		    // The const reference type of the map;
 		    typedef typename Container::const_reference ConstReference;
 		  private:
 		    // The base class of the map.
 		    typedef typename Notifier::ObserverBase Parent;
 		  public:
 		    // \brief Constructor to attach the new map into the notifier.
 		    //
 		    // It constructs a map and attachs it into the notifier.
 		    // It adds all the items of the graph to the map.
-		    VectorMap(const Graph& graph) {
+		    VectorMap(const GraphType& graph) {
 		      Parent::attach(graph.notifier(Item()));
 		      container.resize(Parent::notifier()->maxId() + 1);
+		    }
 		    // \brief Constructor uses given value to initialize the map.
 		    //
 		    // It constructs a map uses a given value to initialize the map.
 		    // It adds all the items of the graph to the map.
-		    VectorMap(const Graph& graph, const Value& value) {
+		    VectorMap(const GraphType& graph, const Value& value) {
 		      Parent::attach(graph.notifier(Item()));
 		      container.resize(Parent::notifier()->maxId() + 1, value);
+		    }
 		  private:
 		    // \brief Copy constructor
 		    //
 		    // Copy constructor.
 		    VectorMap(const VectorMap& _copy) : Parent() {
 		      if (_copy.attached()) {
 		        Parent::attach(*_copy.notifier());
 		        container = _copy.container;
+		      }
+		    }
 		    // \brief Assign operator.
 		    //
 		    // This operator assigns for each item in the map the
 		    // value mapped to the same item in the copied map.
 		    // The parameter map should be indiced with the same
 		    // itemset because this assign operator does not change
 		    // the container of the map.
 		    VectorMap& operator=(const VectorMap& cmap) {
 		      return operator=<VectorMap>(cmap);
+		    }
 		    // \brief Template assign operator.
 		    //
 		    // The given parameter should conform to the ReadMap
 		    // concecpt and could be indiced by the current item set of
 		    // the NodeMap. In this case the value for each item
 		    // is assigned by the value of the given ReadMap.
 		    template <typename CMap>
 		    VectorMap& operator=(const CMap& cmap) {
 		      checkConcept<concepts::ReadMap<Key, _Value>, CMap>();
 		      const typename Parent::Notifier* nf = Parent::notifier();
 		      Item it;
 		      for (nf->first(it); it != INVALID; nf->next(it)) {
 		        set(it, cmap[it]);
+		      }
 		      return *this;
+		    }
 		  public:
 		    // \brief The subcript operator.
 		    //
 		    // The subscript operator. The map can be subscripted by the
 		    // actual items of the graph.
 		    Reference operator[](const Key& key) {
 		      return container[Parent::notifier()->id(key)];
+		    }
 		    // \brief The const subcript operator.
 		    //
 		    // The const subscript operator. The map can be subscripted by the
 		    // actual items of the graph.
 		    ConstReference operator[](const Key& key) const {
 		      return container[Parent::notifier()->id(key)];
+		    }
 		    // \brief The setter function of the map.
 		    //
 		    // It the same as operator[](key) = value expression.
 		    void set(const Key& key, const Value& value) {
 		      (*this)[key] = value;
+		    }
 		  protected:
 		    // \brief Adds a new key to the map.
 		    //
 		    // It adds a new key to the map. It is called by the observer notifier
 		    // and it overrides the add() member function of the observer base.
 		    virtual void add(const Key& key) {
 		      int id = Parent::notifier()->id(key);
 		      if (id >= int(container.size())) {
 		        container.resize(id + 1);
+		      }
+		    }
 		    // \brief Adds more new keys to the map.
 		    //
 		    // It adds more new keys to the map. It is called by the observer notifier
 		    // and it overrides the add() member function of the observer base.
 		    virtual void add(const std::vector<Key>& keys) {
 		      int max = container.size() - 1;
 		      for (int i = 0; i < int(keys.size()); ++i) {
 		        int id = Parent::notifier()->id(keys[i]);
 		        if (id >= max) {
 		          max = id;
+		        }
+		      }
 		      container.resize(max + 1);
+		    }
 		    // \brief Erase a key from the map.
 		    //
 		    // Erase a key from the map. It is called by the observer notifier
 		    // and it overrides the erase() member function of the observer base.
 		    virtual void erase(const Key& key) {
 		      container[Parent::notifier()->id(key)] = Value();
+		    }
 		    // \brief Erase more keys from the map.
 		    //
 		    // It erases more keys from the map. It is called by the observer notifier
 		    // and it overrides the erase() member function of the observer base.
 		    virtual void erase(const std::vector<Key>& keys) {
 		      for (int i = 0; i < int(keys.size()); ++i) {
 		        container[Parent::notifier()->id(keys[i])] = Value();
+		      }
+		    }
 		    // \brief Build the map.
 		    //
 		    // It builds the map. It is called by the observer notifier
 		    // and it overrides the build() member function of the observer base.
 		    virtual void build() {
 		      int size = Parent::notifier()->maxId() + 1;
 		      container.reserve(size);
 		      container.resize(size);
+		    }
 		    // \brief Clear the map.
 		    //
 		    // It erases all items from the map. It is called by the observer notifier
 		    // and it overrides the clear() member function of the observer base.
 		    virtual void clear() {
 		      container.clear();
+		    }
 		  private:
 		    Container container;
 		  };
+		}
 		#endif

lemon/concepts/graph_components.h

Show inline comments

 		/* -*- mode: C++; indent-tabs-mode: nil; -*-
+		 *
 		 * This file is a part of LEMON, a generic C++ optimization library.
+		 *
 		 * Copyright (C) 2003-2009
 		 * Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
 		 * (Egervary Research Group on Combinatorial Optimization, EGRES).
+		 *
 		 * Permission to use, modify and distribute this software is granted
 		 * provided that this copyright notice appears in all copies. For
 		 * precise terms see the accompanying LICENSE file.
+		 *
 		 * This software is provided "AS IS" with no warranty of any kind,
 		 * express or implied, and with no claim as to its suitability for any
 		 * purpose.
+		 *
 		 */
 		///\ingroup graph_concepts
 		///\file
 		///\brief The concept of graph components.
 		#ifndef LEMON_CONCEPTS_GRAPH_COMPONENTS_H
 		#define LEMON_CONCEPTS_GRAPH_COMPONENTS_H
 		#include <lemon/core.h>
 		#include <lemon/concepts/maps.h>
 		#include <lemon/bits/alteration_notifier.h>
 		namespace lemon {
 		  namespace concepts {
 		    /// \brief Concept class for \c Node, \c Arc and \c Edge types.
 		    ///
 		    /// This class describes the concept of \c Node, \c Arc and \c Edge
 		    /// subtypes of digraph and graph types.
 		    ///
 		    /// \note This class is a template class so that we can use it to
 		    /// create graph skeleton classes. The reason for this is that \c Node
 		    /// and \c Arc (or \c Edge) types should \e not derive from the same
 		    /// base class. For \c Node you should instantiate it with character
 		    /// \c 'n', for \c Arc with \c 'a' and for \c Edge with \c 'e'.
 		#ifndef DOXYGEN
 		    template <char sel = '0'>
 		#endif
 		    class GraphItem {
 		    public:
 		      /// \brief Default constructor.
 		      ///
 		      /// Default constructor.
 		      /// \warning The default constructor is not required to set
 		      /// the item to some well-defined value. So you should consider it
 		      /// as uninitialized.
 		      GraphItem() {}
 		      /// \brief Copy constructor.
 		      ///
 		      /// Copy constructor.
 		      GraphItem(const GraphItem &) {}
 		      /// \brief Constructor for conversion from \c INVALID.
 		      ///
 		      /// Constructor for conversion from \c INVALID.
 		      /// It initializes the item to be invalid.
 		      /// \sa Invalid for more details.
 		      GraphItem(Invalid) {}
 		      /// \brief Assignment operator.
 		      ///
 		      /// Assignment operator for the item.
 		      GraphItem& operator=(const GraphItem&) { return *this; }
 		      /// \brief Equality operator.
 		      ///
 		      /// Equality operator.
 		      bool operator==(const GraphItem&) const { return false; }
 		      /// \brief Inequality operator.
 		      ///
 		      /// Inequality operator.
 		      bool operator!=(const GraphItem&) const { return false; }
 		      /// \brief Ordering operator.
 		      ///
 		      /// This operator defines an ordering of the items.
 		      /// It makes possible to use graph item types as key types in
 		      /// associative containers (e.g. \c std::map).
 		      ///
 		      /// \note This operator only have to define some strict ordering of
 		      /// the items; this order has nothing to do with the iteration
 		      /// ordering of the items.
 		      bool operator<(const GraphItem&) const { return false; }
 		      template<typename _GraphItem>
 		      struct Constraints {
 		        void constraints() {
 		          _GraphItem i1;
 		          _GraphItem i2 = i1;
 		          _GraphItem i3 = INVALID;
 		          i1 = i2 = i3;
 		          bool b;
 		          b = (ia == ib) && (ia != ib);
 		          b = (ia == INVALID) && (ib != INVALID);
 		          b = (ia < ib);
+		        }
 		        const _GraphItem &ia;
 		        const _GraphItem &ib;
 		      };
 		    };
 		    /// \brief Base skeleton class for directed graphs.
 		    ///
 		    /// This class describes the base interface of directed graph types.
 		    /// All digraph %concepts have to conform to this class.
 		    /// It just provides types for nodes and arcs and functions
 		    /// to get the source and the target nodes of arcs.
 		    class BaseDigraphComponent {
 		    public:
 		      typedef BaseDigraphComponent Digraph;
 		      /// \brief Node class of the digraph.
 		      ///
 		      /// This class represents the nodes of the digraph.
 		      typedef GraphItem<'n'> Node;
 		      /// \brief Arc class of the digraph.
 		      ///
 		      /// This class represents the arcs of the digraph.
 		      typedef GraphItem<'a'> Arc;
 		      /// \brief Return the source node of an arc.
 		      ///
 		      /// This function returns the source node of an arc.
 		      Node source(const Arc&) const { return INVALID; }
 		      /// \brief Return the target node of an arc.
 		      ///
 		      /// This function returns the target node of an arc.
 		      Node target(const Arc&) const { return INVALID; }
 		      /// \brief Return the opposite node on the given arc.
 		      ///
 		      /// This function returns the opposite node on the given arc.
 		      Node oppositeNode(const Node&, const Arc&) const {
 		        return INVALID;
+		      }
 		      template <typename _Digraph>
 		      struct Constraints {
 		        typedef typename _Digraph::Node Node;
 		        typedef typename _Digraph::Arc Arc;
 		        void constraints() {
 		          checkConcept<GraphItem<'n'>, Node>();
 		          checkConcept<GraphItem<'a'>, Arc>();
+		          {
 		            Node n;
 		            Arc e(INVALID);
 		            n = digraph.source(e);
 		            n = digraph.target(e);
 		            n = digraph.oppositeNode(n, e);
+		          }
+		        }
 		        const _Digraph& digraph;
 		      };
 		    };
 		    /// \brief Base skeleton class for undirected graphs.
 		    ///
 		    /// This class describes the base interface of undirected graph types.
 		    /// All graph %concepts have to conform to this class.
 		    /// It extends the interface of \ref BaseDigraphComponent with an
 		    /// \c Edge type and functions to get the end nodes of edges,
 		    /// to convert from arcs to edges and to get both direction of edges.
 		    class BaseGraphComponent : public BaseDigraphComponent {
 		    public:
 		      typedef BaseGraphComponent Graph;
 		      typedef BaseDigraphComponent::Node Node;
 		      typedef BaseDigraphComponent::Arc Arc;
 		      /// \brief Undirected edge class of the graph.
 		      ///
 		      /// This class represents the undirected edges of the graph.
 		      /// Undirected graphs can be used as directed graphs, each edge is
 		      /// represented by two opposite directed arcs.
 		      class Edge : public GraphItem<'e'> {
 		      public:
 		        typedef GraphItem<'e'> Parent;
 		      public:
 		        /// \brief Default constructor.
 		        ///
 		        /// Default constructor.
 		        /// \warning The default constructor is not required to set
 		        /// the item to some well-defined value. So you should consider it
 		        /// as uninitialized.
 		        Edge() {}
 		        /// \brief Copy constructor.
 		        ///
 		        /// Copy constructor.
 		        Edge(const Edge &) : Parent() {}
 		        /// \brief Constructor for conversion from \c INVALID.
 		        ///
 		        /// Constructor for conversion from \c INVALID.
 		        /// It initializes the item to be invalid.
 		        /// \sa Invalid for more details.
 		        Edge(Invalid) {}
 		        /// \brief Constructor for conversion from an arc.
 		        ///
 		        /// Constructor for conversion from an arc.
 		        /// Besides the core graph item functionality each arc should
 		        /// be convertible to the represented edge.
 		        Edge(const Arc&) {}
 		        /// \brief Assign an arc to an edge.
 		        ///
 		        /// This function assigns an arc to an edge.
 		        /// Besides the core graph item functionality each arc should
 		        /// be convertible to the represented edge.
 		        Edge& operator=(const Arc&) { return *this; }
 		      };
 		      /// \brief Return one end node of an edge.
 		      ///
 		      /// This function returns one end node of an edge.
 		      Node u(const Edge&) const { return INVALID; }
 		      /// \brief Return the other end node of an edge.
 		      ///
 		      /// This function returns the other end node of an edge.
 		      Node v(const Edge&) const { return INVALID; }
 		      /// \brief Return a directed arc related to an edge.
 		      ///
 		      /// This function returns a directed arc from its direction and the
 		      /// represented edge.
 		      Arc direct(const Edge&, bool) const { return INVALID; }
 		      /// \brief Return a directed arc related to an edge.
 		      ///
 		      /// This function returns a directed arc from its source node and the
 		      /// represented edge.
 		      Arc direct(const Edge&, const Node&) const { return INVALID; }
 		      /// \brief Return the direction of the arc.
 		      ///
 		      /// Returns the direction of the arc. Each arc represents an
 		      /// edge with a direction. It gives back the
 		      /// direction.
 		      bool direction(const Arc&) const { return true; }
 		      /// \brief Return the opposite arc.
 		      ///
 		      /// This function returns the opposite arc, i.e. the arc representing
 		      /// the same edge and has opposite direction.
 		      Arc oppositeArc(const Arc&) const { return INVALID; }
 		      template <typename _Graph>
 		      struct Constraints {
 		        typedef typename _Graph::Node Node;
 		        typedef typename _Graph::Arc Arc;
 		        typedef typename _Graph::Edge Edge;
 		        void constraints() {
 		          checkConcept<BaseDigraphComponent, _Graph>();
 		          checkConcept<GraphItem<'e'>, Edge>();
+		          {
 		            Node n;
 		            Edge ue(INVALID);
 		            Arc e;
 		            n = graph.u(ue);
 		            n = graph.v(ue);
 		            e = graph.direct(ue, true);
 		            e = graph.direct(ue, false);
 		            e = graph.direct(ue, n);
 		            e = graph.oppositeArc(e);
 		            ue = e;
 		            bool d = graph.direction(e);
 		            ignore_unused_variable_warning(d);
+		          }
+		        }
 		        const _Graph& graph;
 		      };
 		    };
 		    /// \brief Skeleton class for \e idable directed graphs.
 		    ///
 		    /// This class describes the interface of \e idable directed graphs.
 		    /// It extends \ref BaseDigraphComponent with the core ID functions.
 		    /// The ids of the items must be unique and immutable.
 		    /// This concept is part of the Digraph concept.
 		    template <typename BAS = BaseDigraphComponent>
 		    class IDableDigraphComponent : public BAS {
 		    public:
 		      typedef BAS Base;
 		      typedef typename Base::Node Node;
 		      typedef typename Base::Arc Arc;
 		      /// \brief Return a unique integer id for the given node.
 		      ///
 		      /// This function returns a unique integer id for the given node.
 		      int id(const Node&) const { return -1; }
 		      /// \brief Return the node by its unique id.
 		      ///
 		      /// This function returns the node by its unique id.
 		      /// If the digraph does not contain a node with the given id,
 		      /// then the result of the function is undefined.
 		      Node nodeFromId(int) const { return INVALID; }
 		      /// \brief Return a unique integer id for the given arc.
 		      ///
 		      /// This function returns a unique integer id for the given arc.
 		      int id(const Arc&) const { return -1; }
 		      /// \brief Return the arc by its unique id.
 		      ///
 		      /// This function returns the arc by its unique id.
 		      /// If the digraph does not contain an arc with the given id,
 		      /// then the result of the function is undefined.
 		      Arc arcFromId(int) const { return INVALID; }
 		      /// \brief Return an integer greater or equal to the maximum
 		      /// node id.
 		      ///
 		      /// This function returns an integer greater or equal to the
 		      /// maximum node id.
 		      int maxNodeId() const { return -1; }
 		      /// \brief Return an integer greater or equal to the maximum
 		      /// arc id.
 		      ///
 		      /// This function returns an integer greater or equal to the
 		      /// maximum arc id.
 		      int maxArcId() const { return -1; }
 		      template <typename _Digraph>
 		      struct Constraints {
 		        void constraints() {
 		          checkConcept<Base, _Digraph >();
 		          typename _Digraph::Node node;
 		          int nid = digraph.id(node);
 		          nid = digraph.id(node);
 		          node = digraph.nodeFromId(nid);
 		          typename _Digraph::Arc arc;
 		          int eid = digraph.id(arc);
 		          eid = digraph.id(arc);
 		          arc = digraph.arcFromId(eid);
 		          nid = digraph.maxNodeId();
 		          ignore_unused_variable_warning(nid);
 		          eid = digraph.maxArcId();
 		          ignore_unused_variable_warning(eid);
+		        }
 		        const _Digraph& digraph;
 		      };
 		    };
 		    /// \brief Skeleton class for \e idable undirected graphs.
 		    ///
 		    /// This class describes the interface of \e idable undirected
 		    /// graphs. It extends \ref IDableDigraphComponent with the core ID
 		    /// functions of undirected graphs.
 		    /// The ids of the items must be unique and immutable.
 		    /// This concept is part of the Graph concept.
 		    template <typename BAS = BaseGraphComponent>
 		    class IDableGraphComponent : public IDableDigraphComponent<BAS> {
 		    public:
 		      typedef BAS Base;
 		      typedef typename Base::Edge Edge;
 		      using IDableDigraphComponent<Base>::id;
 		      /// \brief Return a unique integer id for the given edge.
 		      ///
 		      /// This function returns a unique integer id for the given edge.
 		      int id(const Edge&) const { return -1; }
 		      /// \brief Return the edge by its unique id.
 		      ///
 		      /// This function returns the edge by its unique id.
 		      /// If the graph does not contain an edge with the given id,
 		      /// then the result of the function is undefined.
 		      Edge edgeFromId(int) const { return INVALID; }
 		      /// \brief Return an integer greater or equal to the maximum
 		      /// edge id.
 		      ///
 		      /// This function returns an integer greater or equal to the
 		      /// maximum edge id.
 		      int maxEdgeId() const { return -1; }
 		      template <typename _Graph>
 		      struct Constraints {
 		        void constraints() {
 		          checkConcept<IDableDigraphComponent<Base>, _Graph >();
 		          typename _Graph::Edge edge;
 		          int ueid = graph.id(edge);
 		          ueid = graph.id(edge);
 		          edge = graph.edgeFromId(ueid);
 		          ueid = graph.maxEdgeId();
 		          ignore_unused_variable_warning(ueid);
+		        }
 		        const _Graph& graph;
 		      };
 		    };
 		    /// \brief Concept class for \c NodeIt, \c ArcIt and \c EdgeIt types.
 		    ///
 		    /// This class describes the concept of \c NodeIt, \c ArcIt and
 		    /// \c EdgeIt subtypes of digraph and graph types.
 		    template <typename GR, typename Item>
 		    class GraphItemIt : public Item {
 		    public:
 		      /// \brief Default constructor.
 		      ///
 		      /// Default constructor.
 		      /// \warning The default constructor is not required to set
 		      /// the iterator to some well-defined value. So you should consider it
 		      /// as uninitialized.
 		      GraphItemIt() {}
 		      /// \brief Copy constructor.
 		      ///
 		      /// Copy constructor.
 		      GraphItemIt(const GraphItemIt& it) : Item(it) {}
 		      /// \brief Constructor that sets the iterator to the first item.
 		      ///
 		      /// Constructor that sets the iterator to the first item.
 		      explicit GraphItemIt(const GR&) {}
 		      /// \brief Constructor for conversion from \c INVALID.
 		      ///
 		      /// Constructor for conversion from \c INVALID.
@@ -738,745 +741,743 @@
+		          {
 		            checkConcept<GraphItemIt<_Digraph, typename _Digraph::Arc>,
 		              typename _Digraph::ArcIt >();
 		            checkConcept<GraphItemIt<_Digraph, typename _Digraph::Node>,
 		              typename _Digraph::NodeIt >();
 		            checkConcept<GraphIncIt<_Digraph, typename _Digraph::Arc,
 		              typename _Digraph::Node, 'i'>, typename _Digraph::InArcIt>();
 		            checkConcept<GraphIncIt<_Digraph, typename _Digraph::Arc,
 		              typename _Digraph::Node, 'o'>, typename _Digraph::OutArcIt>();
 		            typename _Digraph::Node n;
 		            const typename _Digraph::InArcIt iait(INVALID);
 		            const typename _Digraph::OutArcIt oait(INVALID);
 		            n = digraph.baseNode(iait);
 		            n = digraph.runningNode(iait);
 		            n = digraph.baseNode(oait);
 		            n = digraph.runningNode(oait);
 		            ignore_unused_variable_warning(n);
+		          }
+		        }
 		        const _Digraph& digraph;
 		      };
 		    };
 		    /// \brief Skeleton class for iterable undirected graphs.
 		    ///
 		    /// This class describes the interface of iterable undirected
 		    /// graphs. It extends \ref IterableDigraphComponent with the core
 		    /// iterable interface of undirected graphs.
 		    /// This concept is part of the Graph concept.
 		    template <typename BAS = BaseGraphComponent>
 		    class IterableGraphComponent : public IterableDigraphComponent<BAS> {
 		    public:
 		      typedef BAS Base;
 		      typedef typename Base::Node Node;
 		      typedef typename Base::Arc Arc;
 		      typedef typename Base::Edge Edge;
 		      typedef IterableGraphComponent Graph;
 		      /// \name Base Iteration
 		      ///
 		      /// This interface provides functions for iteration on edges.
 		      ///
 		      /// @{
 		      using IterableDigraphComponent<Base>::first;
 		      using IterableDigraphComponent<Base>::next;
 		      /// \brief Return the first edge.
 		      ///
 		      /// This function gives back the first edge in the iteration order.
 		      void first(Edge&) const {}
 		      /// \brief Return the next edge.
 		      ///
 		      /// This function gives back the next edge in the iteration order.
 		      void next(Edge&) const {}
 		      /// \brief Return the first edge incident to the given node.
 		      ///
 		      /// This function gives back the first edge incident to the given
 		      /// node. The bool parameter gives back the direction for which the
 		      /// source node of the directed arc representing the edge is the
 		      /// given node.
 		      void firstInc(Edge&, bool&, const Node&) const {}
 		      /// \brief Gives back the next of the edges from the
 		      /// given node.
 		      ///
 		      /// This function gives back the next edge incident to the given
 		      /// node. The bool parameter should be used as \c firstInc() use it.
 		      void nextInc(Edge&, bool&) const {}
 		      using IterableDigraphComponent<Base>::baseNode;
 		      using IterableDigraphComponent<Base>::runningNode;
 		      /// @}
 		      /// \name Class Based Iteration
 		      ///
 		      /// This interface provides iterator classes for edges.
 		      ///
 		      /// @{
 		      /// \brief This iterator goes through each edge.
 		      ///
 		      /// This iterator goes through each edge.
 		      typedef GraphItemIt<Graph, Edge> EdgeIt;
 		      /// \brief This iterator goes trough the incident edges of a
 		      /// node.
 		      ///
 		      /// This iterator goes trough the incident edges of a certain
 		      /// node of a graph.
 		      typedef GraphIncIt<Graph, Edge, Node, 'e'> IncEdgeIt;
 		      /// \brief The base node of the iterator.
 		      ///
 		      /// This function gives back the base node of the iterator.
 		      Node baseNode(const IncEdgeIt&) const { return INVALID; }
 		      /// \brief The running node of the iterator.
 		      ///
 		      /// This function gives back the running node of the iterator.
 		      Node runningNode(const IncEdgeIt&) const { return INVALID; }
 		      /// @}
 		      template <typename _Graph>
 		      struct Constraints {
 		        void constraints() {
 		          checkConcept<IterableDigraphComponent<Base>, _Graph>();
+		          {
 		            typename _Graph::Node node(INVALID);
 		            typename _Graph::Edge edge(INVALID);
 		            bool dir;
+		            {
 		              graph.first(edge);
 		              graph.next(edge);
+		            }
+		            {
 		              graph.firstInc(edge, dir, node);
 		              graph.nextInc(edge, dir);
+		            }
+		          }
+		          {
 		            checkConcept<GraphItemIt<_Graph, typename _Graph::Edge>,
 		              typename _Graph::EdgeIt >();
 		            checkConcept<GraphIncIt<_Graph, typename _Graph::Edge,
 		              typename _Graph::Node, 'e'>, typename _Graph::IncEdgeIt>();
 		            typename _Graph::Node n;
 		            const typename _Graph::IncEdgeIt ieit(INVALID);
 		            n = graph.baseNode(ieit);
 		            n = graph.runningNode(ieit);
+		          }
+		        }
 		        const _Graph& graph;
 		      };
 		    };
 		    /// \brief Skeleton class for alterable directed graphs.
 		    ///
 		    /// This class describes the interface of alterable directed
 		    /// graphs. It extends \ref BaseDigraphComponent with the alteration
 		    /// notifier interface. It implements
 		    /// an observer-notifier pattern for each digraph item. More
 		    /// obsevers can be registered into the notifier and whenever an
 		    /// alteration occured in the digraph all the observers will be
 		    /// notified about it.
 		    template <typename BAS = BaseDigraphComponent>
 		    class AlterableDigraphComponent : public BAS {
 		    public:
 		      typedef BAS Base;
 		      typedef typename Base::Node Node;
 		      typedef typename Base::Arc Arc;
 		      /// Node alteration notifier class.
 		      typedef AlterationNotifier<AlterableDigraphComponent, Node>
 		      NodeNotifier;
 		      /// Arc alteration notifier class.
 		      typedef AlterationNotifier<AlterableDigraphComponent, Arc>
 		      ArcNotifier;
 		      /// \brief Return the node alteration notifier.
 		      ///
 		      /// This function gives back the node alteration notifier.
 		      NodeNotifier& notifier(Node) const {
 		         return NodeNotifier();
+		      }
 		      /// \brief Return the arc alteration notifier.
 		      ///
 		      /// This function gives back the arc alteration notifier.
 		      ArcNotifier& notifier(Arc) const {
 		        return ArcNotifier();
+		      }
 		      template <typename _Digraph>
 		      struct Constraints {
 		        void constraints() {
 		          checkConcept<Base, _Digraph>();
 		          typename _Digraph::NodeNotifier& nn
 		            = digraph.notifier(typename _Digraph::Node());
 		          typename _Digraph::ArcNotifier& en
 		            = digraph.notifier(typename _Digraph::Arc());
 		          ignore_unused_variable_warning(nn);
 		          ignore_unused_variable_warning(en);
+		        }
 		        const _Digraph& digraph;
 		      };
 		    };
 		    /// \brief Skeleton class for alterable undirected graphs.
 		    ///
 		    /// This class describes the interface of alterable undirected
 		    /// graphs. It extends \ref AlterableDigraphComponent with the alteration
 		    /// notifier interface of undirected graphs. It implements
 		    /// an observer-notifier pattern for the edges. More
 		    /// obsevers can be registered into the notifier and whenever an
 		    /// alteration occured in the graph all the observers will be
 		    /// notified about it.
 		    template <typename BAS = BaseGraphComponent>
 		    class AlterableGraphComponent : public AlterableDigraphComponent<BAS> {
 		    public:
 		      typedef BAS Base;
 		      typedef typename Base::Edge Edge;
 		      /// Edge alteration notifier class.
 		      typedef AlterationNotifier<AlterableGraphComponent, Edge>
 		      EdgeNotifier;
 		      /// \brief Return the edge alteration notifier.
 		      ///
 		      /// This function gives back the edge alteration notifier.
 		      EdgeNotifier& notifier(Edge) const {
 		        return EdgeNotifier();
+		      }
 		      template <typename _Graph>
 		      struct Constraints {
 		        void constraints() {
 		          checkConcept<AlterableDigraphComponent<Base>, _Graph>();
 		          typename _Graph::EdgeNotifier& uen
 		            = graph.notifier(typename _Graph::Edge());
 		          ignore_unused_variable_warning(uen);
+		        }
 		        const _Graph& graph;
 		      };
 		    };
 		    /// \brief Concept class for standard graph maps.
 		    ///
 		    /// This class describes the concept of standard graph maps, i.e.
 		    /// the \c NodeMap, \c ArcMap and \c EdgeMap subtypes of digraph and
 		    /// graph types, which can be used for associating data to graph items.
 		    /// The standard graph maps must conform to the ReferenceMap concept.
 		    template <typename GR, typename K, typename V>
 		    class GraphMap : public ReferenceMap<K, V, V&, const V&> {
 		      typedef ReferenceMap<K, V, V&, const V&> Parent;
 		    public:
 		      typedef ReadWriteMap<K, V> Parent;
 		      /// The graph type of the map.
 		      typedef GR Graph;
 		      /// The key type of the map.
 		      typedef K Key;
 		      /// The value type of the map.
 		      typedef V Value;
 		      /// The reference type of the map.
 		      typedef Value& Reference;
 		      /// The const reference type of the map.
 		      typedef const Value& ConstReference;
 		      // The reference map tag.
 		      typedef True ReferenceMapTag;
 		      /// \brief Construct a new map.
 		      ///
 		      /// Construct a new map for the graph.
-		      explicit GraphMap(const Graph&) {}
+		      explicit GraphMap(const GR&) {}
 		      /// \brief Construct a new map with default value.
 		      ///
 		      /// Construct a new map for the graph and initalize the values.
-		      GraphMap(const Graph&, const Value&) {}
+		      GraphMap(const GR&, const Value&) {}
 		    private:
 		      /// \brief Copy constructor.
 		      ///
 		      /// Copy Constructor.
 		      GraphMap(const GraphMap&) : Parent() {}
 		      /// \brief Assignment operator.
 		      ///
 		      /// Assignment operator. It does not mofify the underlying graph,
 		      /// it just iterates on the current item set and set the  map
 		      /// with the value returned by the assigned map.
 		      template <typename CMap>
 		      GraphMap& operator=(const CMap&) {
 		        checkConcept<ReadMap<Key, Value>, CMap>();
 		        return *this;
+		      }
 		    public:
 		      template<typename _Map>
 		      struct Constraints {
 		        void constraints() {
 		          checkConcept
 		            <ReferenceMap<Key, Value, Value&, const Value&>, _Map>();
 		          _Map m1(g);
 		          _Map m2(g,t);
 		          // Copy constructor
 		          // _Map m3(m);
 		          // Assignment operator
 		          // ReadMap<Key, Value> cmap;
 		          // m3 = cmap;
 		          ignore_unused_variable_warning(m1);
 		          ignore_unused_variable_warning(m2);
 		          // ignore_unused_variable_warning(m3);
+		        }
 		        const _Map &m;
-		        const Graph &g;
+		        const GR &g;
 		        const typename GraphMap::Value &t;
 		      };
 		    };
 		    /// \brief Skeleton class for mappable directed graphs.
 		    ///
 		    /// This class describes the interface of mappable directed graphs.
 		    /// It extends \ref BaseDigraphComponent with the standard digraph
 		    /// map classes, namely \c NodeMap and \c ArcMap.
 		    /// This concept is part of the Digraph concept.
 		    template <typename BAS = BaseDigraphComponent>
 		    class MappableDigraphComponent : public BAS  {
 		    public:
 		      typedef BAS Base;
 		      typedef typename Base::Node Node;
 		      typedef typename Base::Arc Arc;
 		      typedef MappableDigraphComponent Digraph;
 		      /// \brief Standard graph map for the nodes.
 		      ///
 		      /// Standard graph map for the nodes.
 		      /// It conforms to the ReferenceMap concept.
 		      template <typename V>
 		      class NodeMap : public GraphMap<MappableDigraphComponent, Node, V> {
 		      public:
 		        typedef GraphMap<MappableDigraphComponent, Node, V> Parent;
 		      public:
 		        /// \brief Construct a new map.
 		        ///
 		        /// Construct a new map for the digraph.
 		        explicit NodeMap(const MappableDigraphComponent& digraph)
 		          : Parent(digraph) {}
 		        /// \brief Construct a new map with default value.
 		        ///
 		        /// Construct a new map for the digraph and initalize the values.
 		        NodeMap(const MappableDigraphComponent& digraph, const V& value)
 		          : Parent(digraph, value) {}
 		      private:
 		        /// \brief Copy constructor.
 		        ///
 		        /// Copy Constructor.
 		        NodeMap(const NodeMap& nm) : Parent(nm) {}
 		        /// \brief Assignment operator.
 		        ///
 		        /// Assignment operator.
 		        template <typename CMap>
 		        NodeMap& operator=(const CMap&) {
 		          checkConcept<ReadMap<Node, V>, CMap>();
 		          return *this;
+		        }
 		      };
 		      /// \brief Standard graph map for the arcs.
 		      ///
 		      /// Standard graph map for the arcs.
 		      /// It conforms to the ReferenceMap concept.
 		      template <typename V>
 		      class ArcMap : public GraphMap<MappableDigraphComponent, Arc, V> {
 		      public:
 		        typedef GraphMap<MappableDigraphComponent, Arc, V> Parent;
 		      public:
 		        /// \brief Construct a new map.
 		        ///
 		        /// Construct a new map for the digraph.
 		        explicit ArcMap(const MappableDigraphComponent& digraph)
 		          : Parent(digraph) {}
 		        /// \brief Construct a new map with default value.
 		        ///
 		        /// Construct a new map for the digraph and initalize the values.
 		        ArcMap(const MappableDigraphComponent& digraph, const V& value)
 		          : Parent(digraph, value) {}
 		      private:
 		        /// \brief Copy constructor.
 		        ///
 		        /// Copy Constructor.
 		        ArcMap(const ArcMap& nm) : Parent(nm) {}
 		        /// \brief Assignment operator.
 		        ///
 		        /// Assignment operator.
 		        template <typename CMap>
 		        ArcMap& operator=(const CMap&) {
 		          checkConcept<ReadMap<Arc, V>, CMap>();
 		          return *this;
+		        }
 		      };
 		      template <typename _Digraph>
 		      struct Constraints {
 		        struct Dummy {
 		          int value;
 		          Dummy() : value(0) {}
 		          Dummy(int _v) : value(_v) {}
 		        };
 		        void constraints() {
 		          checkConcept<Base, _Digraph>();
 		          { // int map test
 		            typedef typename _Digraph::template NodeMap<int> IntNodeMap;
 		            checkConcept<GraphMap<_Digraph, typename _Digraph::Node, int>,
 		              IntNodeMap >();
 		          } { // bool map test
 		            typedef typename _Digraph::template NodeMap<bool> BoolNodeMap;
 		            checkConcept<GraphMap<_Digraph, typename _Digraph::Node, bool>,
 		              BoolNodeMap >();
 		          } { // Dummy map test
 		            typedef typename _Digraph::template NodeMap<Dummy> DummyNodeMap;
 		            checkConcept<GraphMap<_Digraph, typename _Digraph::Node, Dummy>,
 		              DummyNodeMap >();
+		          }
 		          { // int map test
 		            typedef typename _Digraph::template ArcMap<int> IntArcMap;
 		            checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, int>,
 		              IntArcMap >();
 		          } { // bool map test
 		            typedef typename _Digraph::template ArcMap<bool> BoolArcMap;
 		            checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, bool>,
 		              BoolArcMap >();
 		          } { // Dummy map test
 		            typedef typename _Digraph::template ArcMap<Dummy> DummyArcMap;
 		            checkConcept<GraphMap<_Digraph, typename _Digraph::Arc, Dummy>,
 		              DummyArcMap >();
+		          }
+		        }
 		        const _Digraph& digraph;
 		      };
 		    };
 		    /// \brief Skeleton class for mappable undirected graphs.
 		    ///
 		    /// This class describes the interface of mappable undirected graphs.
 		    /// It extends \ref MappableDigraphComponent with the standard graph
 		    /// map class for edges (\c EdgeMap).
 		    /// This concept is part of the Graph concept.
 		    template <typename BAS = BaseGraphComponent>
 		    class MappableGraphComponent : public MappableDigraphComponent<BAS>  {
 		    public:
 		      typedef BAS Base;
 		      typedef typename Base::Edge Edge;
 		      typedef MappableGraphComponent Graph;
 		      /// \brief Standard graph map for the edges.
 		      ///
 		      /// Standard graph map for the edges.
 		      /// It conforms to the ReferenceMap concept.
 		      template <typename V>
 		      class EdgeMap : public GraphMap<MappableGraphComponent, Edge, V> {
 		      public:
 		        typedef GraphMap<MappableGraphComponent, Edge, V> Parent;
 		      public:
 		        /// \brief Construct a new map.
 		        ///
 		        /// Construct a new map for the graph.
 		        explicit EdgeMap(const MappableGraphComponent& graph)
 		          : Parent(graph) {}
 		        /// \brief Construct a new map with default value.
 		        ///
 		        /// Construct a new map for the graph and initalize the values.
 		        EdgeMap(const MappableGraphComponent& graph, const V& value)
 		          : Parent(graph, value) {}
 		      private:
 		        /// \brief Copy constructor.
 		        ///
 		        /// Copy Constructor.
 		        EdgeMap(const EdgeMap& nm) : Parent(nm) {}
 		        /// \brief Assignment operator.
 		        ///
 		        /// Assignment operator.
 		        template <typename CMap>
 		        EdgeMap& operator=(const CMap&) {
 		          checkConcept<ReadMap<Edge, V>, CMap>();
 		          return *this;
+		        }
 		      };
 		      template <typename _Graph>
 		      struct Constraints {
 		        struct Dummy {
 		          int value;
 		          Dummy() : value(0) {}
 		          Dummy(int _v) : value(_v) {}
 		        };
 		        void constraints() {
 		          checkConcept<MappableDigraphComponent<Base>, _Graph>();
 		          { // int map test
 		            typedef typename _Graph::template EdgeMap<int> IntEdgeMap;
 		            checkConcept<GraphMap<_Graph, typename _Graph::Edge, int>,
 		              IntEdgeMap >();
 		          } { // bool map test
 		            typedef typename _Graph::template EdgeMap<bool> BoolEdgeMap;
 		            checkConcept<GraphMap<_Graph, typename _Graph::Edge, bool>,
 		              BoolEdgeMap >();
 		          } { // Dummy map test
 		            typedef typename _Graph::template EdgeMap<Dummy> DummyEdgeMap;
 		            checkConcept<GraphMap<_Graph, typename _Graph::Edge, Dummy>,
 		              DummyEdgeMap >();
+		          }
+		        }
 		        const _Graph& graph;
 		      };
 		    };
 		    /// \brief Skeleton class for extendable directed graphs.
 		    ///
 		    /// This class describes the interface of extendable directed graphs.
 		    /// It extends \ref BaseDigraphComponent with functions for adding
 		    /// nodes and arcs to the digraph.
 		    /// This concept requires \ref AlterableDigraphComponent.
 		    template <typename BAS = BaseDigraphComponent>
 		    class ExtendableDigraphComponent : public BAS {
 		    public:
 		      typedef BAS Base;
 		      typedef typename Base::Node Node;
 		      typedef typename Base::Arc Arc;
 		      /// \brief Add a new node to the digraph.
 		      ///
 		      /// This function adds a new node to the digraph.
 		      Node addNode() {
 		        return INVALID;
+		      }
 		      /// \brief Add a new arc connecting the given two nodes.
 		      ///
 		      /// This function adds a new arc connecting the given two nodes
 		      /// of the digraph.
 		      Arc addArc(const Node&, const Node&) {
 		        return INVALID;
+		      }
 		      template <typename _Digraph>
 		      struct Constraints {
 		        void constraints() {
 		          checkConcept<Base, _Digraph>();
 		          typename _Digraph::Node node_a, node_b;
 		          node_a = digraph.addNode();
 		          node_b = digraph.addNode();
 		          typename _Digraph::Arc arc;
 		          arc = digraph.addArc(node_a, node_b);
+		        }
 		        _Digraph& digraph;
 		      };
 		    };
 		    /// \brief Skeleton class for extendable undirected graphs.
 		    ///
 		    /// This class describes the interface of extendable undirected graphs.
 		    /// It extends \ref BaseGraphComponent with functions for adding
 		    /// nodes and edges to the graph.
 		    /// This concept requires \ref AlterableGraphComponent.
 		    template <typename BAS = BaseGraphComponent>
 		    class ExtendableGraphComponent : public BAS {
 		    public:
 		      typedef BAS Base;
 		      typedef typename Base::Node Node;
 		      typedef typename Base::Edge Edge;
 		      /// \brief Add a new node to the digraph.
 		      ///
 		      /// This function adds a new node to the digraph.
 		      Node addNode() {
 		        return INVALID;
+		      }
 		      /// \brief Add a new edge connecting the given two nodes.
 		      ///
 		      /// This function adds a new edge connecting the given two nodes
 		      /// of the graph.
 		      Edge addEdge(const Node&, const Node&) {
 		        return INVALID;
+		      }
 		      template <typename _Graph>
 		      struct Constraints {
 		        void constraints() {
 		          checkConcept<Base, _Graph>();
 		          typename _Graph::Node node_a, node_b;
 		          node_a = graph.addNode();
 		          node_b = graph.addNode();
 		          typename _Graph::Edge edge;
 		          edge = graph.addEdge(node_a, node_b);
+		        }
 		        _Graph& graph;
 		      };
 		    };
 		    /// \brief Skeleton class for erasable directed graphs.
 		    ///
 		    /// This class describes the interface of erasable directed graphs.
 		    /// It extends \ref BaseDigraphComponent with functions for removing
 		    /// nodes and arcs from the digraph.
 		    /// This concept requires \ref AlterableDigraphComponent.
 		    template <typename BAS = BaseDigraphComponent>
 		    class ErasableDigraphComponent : public BAS {
 		    public:
 		      typedef BAS Base;
 		      typedef typename Base::Node Node;
 		      typedef typename Base::Arc Arc;
 		      /// \brief Erase a node from the digraph.
 		      ///
 		      /// This function erases the given node from the digraph and all arcs
 		      /// connected to the node.
 		      void erase(const Node&) {}
 		      /// \brief Erase an arc from the digraph.
 		      ///
 		      /// This function erases the given arc from the digraph.
 		      void erase(const Arc&) {}
 		      template <typename _Digraph>
 		      struct Constraints {
 		        void constraints() {
 		          checkConcept<Base, _Digraph>();
 		          const typename _Digraph::Node node(INVALID);
 		          digraph.erase(node);
 		          const typename _Digraph::Arc arc(INVALID);
 		          digraph.erase(arc);
+		        }
 		        _Digraph& digraph;
 		      };
 		    };
 		    /// \brief Skeleton class for erasable undirected graphs.
 		    ///
 		    /// This class describes the interface of erasable undirected graphs.
 		    /// It extends \ref BaseGraphComponent with functions for removing
 		    /// nodes and edges from the graph.
 		    /// This concept requires \ref AlterableGraphComponent.
 		    template <typename BAS = BaseGraphComponent>
 		    class ErasableGraphComponent : public BAS {
 		    public:
 		      typedef BAS Base;
 		      typedef typename Base::Node Node;
 		      typedef typename Base::Edge Edge;
 		      /// \brief Erase a node from the graph.
 		      ///
 		      /// This function erases the given node from the graph and all edges
 		      /// connected to the node.
 		      void erase(const Node&) {}
 		      /// \brief Erase an edge from the digraph.
 		      ///
 		      /// This function erases the given edge from the digraph.
 		      void erase(const Edge&) {}
 		      template <typename _Graph>
 		      struct Constraints {
 		        void constraints() {
 		          checkConcept<Base, _Graph>();
 		          const typename _Graph::Node node(INVALID);
 		          graph.erase(node);
 		          const typename _Graph::Edge edge(INVALID);
 		          graph.erase(edge);
+		        }
 		        _Graph& graph;
 		      };
 		    };
 		    /// \brief Skeleton class for clearable directed graphs.
 		    ///
 		    /// This class describes the interface of clearable directed graphs.
 		    /// It extends \ref BaseDigraphComponent with a function for clearing
 		    /// the digraph.
 		    /// This concept requires \ref AlterableDigraphComponent.
 		    template <typename BAS = BaseDigraphComponent>
 		    class ClearableDigraphComponent : public BAS {
 		    public:
 		      typedef BAS Base;
 		      /// \brief Erase all nodes and arcs from the digraph.
 		      ///
 		      /// This function erases all nodes and arcs from the digraph.
 		      void clear() {}
 		      template <typename _Digraph>
 		      struct Constraints {
 		        void constraints() {
 		          checkConcept<Base, _Digraph>();
 		          digraph.clear();
+		        }
 		        _Digraph& digraph;
 		      };
 		    };
 		    /// \brief Skeleton class for clearable undirected graphs.

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1	1	/* -- mode: C++; indent-tabs-mode: nil; --
2	2	*
3	3	* This file is a part of LEMON, a generic C++ optimization library.
4	4	*
5	5	* Copyright (C) 2003-2009
6	6	* Egervary Jeno Kombinatorikus Optimalizalasi Kutatocsoport
7	7	* (Egervary Research Group on Combinatorial Optimization, EGRES).
8	8	*
9	9	* Permission to use, modify and distribute this software is granted
10	10	* provided that this copyright notice appears in all copies. For
11	11	* precise terms see the accompanying LICENSE file.
12	12	*
13	13	* This software is provided "AS IS" with no warranty of any kind,
14	14	* express or implied, and with no claim as to its suitability for any
15	15	* purpose.
16	16	*
17	17	*/
18	18
19	19	#ifndef LEMON_BITS_BASE_EXTENDER_H
20	20	#define LEMON_BITS_BASE_EXTENDER_H
21	21
22	22	#include <lemon/core.h>
23	23	#include <lemon/error.h>
24	24
25	25	#include <lemon/bits/map_extender.h>
26	26	#include <lemon/bits/default_map.h>
27	27
28	28	#include <lemon/concept_check.h>
29	29	#include <lemon/concepts/maps.h>
30	30
31	31	//\ingroup digraphbits
32	32	//\file
33	33	//\brief Extenders for the graph types
34	34	namespace lemon {
35	35
36	36	// \ingroup digraphbits
37	37	//
38	38	// \brief BaseDigraph to BaseGraph extender
39	39	template <typename Base>
40	40	class UndirDigraphExtender : public Base {
	41	typedef Base Parent;
41	42
42	43	public:
43	44
44		typedef Base Parent;
45	45	typedef typename Parent::Arc Edge;
46	46	typedef typename Parent::Node Node;
47	47
48	48	typedef True UndirectedTag;
49	49
50	50	class Arc : public Edge {
51	51	friend class UndirDigraphExtender;
52	52
53	53	protected:
54	54	bool forward;
55	55
56	56	Arc(const Edge &ue, bool _forward) :
57	57	Edge(ue), forward(_forward) {}
58	58
59	59	public:
60	60	Arc() {}
61	61
62	62	// Invalid arc constructor
63	63	Arc(Invalid i) : Edge(i), forward(true) {}
64	64
65	65	bool operator==(const Arc &that) const {
66	66	return forward==that.forward && Edge(*this)==Edge(that);
67	67	}
68	68	bool operator!=(const Arc &that) const {
69	69	return forward!=that.forward \|\| Edge(*this)!=Edge(that);
70	70	}
71	71	bool operator<(const Arc &that) const {
72	72	return forward<that.forward \|\|
73	73	(!(that.forward<forward) && Edge(*this)<Edge(that));
74	74	}
75	75	};
76	76
77	77	// First node of the edge
78	78	Node u(const Edge &e) const {
79	79	return Parent::source(e);
80	80	}
81	81
82	82	// Source of the given arc
83	83	Node source(const Arc &e) const {
84	84	return e.forward ? Parent::source(e) : Parent::target(e);
85	85	}
86	86
87	87	// Second node of the edge
88	88	Node v(const Edge &e) const {
89	89	return Parent::target(e);
90	90	}
91	91
92	92	// Target of the given arc
93	93	Node target(const Arc &e) const {
94	94	return e.forward ? Parent::target(e) : Parent::source(e);
95	95	}
96	96
97	97	// \brief Directed arc from an edge.
98	98	//
99	99	// Returns a directed arc corresponding to the specified edge.
100	100	// If the given bool is true, the first node of the given edge and
101	101	// the source node of the returned arc are the same.
102	102	static Arc direct(const Edge &e, bool d) {
103	103	return Arc(e, d);
104	104	}
105	105
106	106	// Returns whether the given directed arc has the same orientation
107	107	// as the corresponding edge.
108	108	static bool direction(const Arc &a) { return a.forward; }
109	109
110	110	using Parent::first;
111	111	using Parent::next;
112	112
113	113	void first(Arc &e) const {
114	114	Parent::first(e);
115	115	e.forward=true;
116	116	}
117	117
118	118	void next(Arc &e) const {
119	119	if( e.forward ) {
120	120	e.forward = false;
121	121	}
122	122	else {
123	123	Parent::next(e);
124	124	e.forward = true;
125	125	}
126	126	}
127	127
128	128	void firstOut(Arc &e, const Node &n) const {
129	129	Parent::firstIn(e,n);
130	130	if( Edge(e) != INVALID ) {
131	131	e.forward = false;
132	132	}
133	133	else {
134	134	Parent::firstOut(e,n);
135	135	e.forward = true;
136	136	}
137	137	}
138	138	void nextOut(Arc &e) const {
139	139	if( ! e.forward ) {
140	140	Node n = Parent::target(e);
141	141	Parent::nextIn(e);
142	142	if( Edge(e) == INVALID ) {
143	143	Parent::firstOut(e, n);
144	144	e.forward = true;
145	145	}
146	146	}
147	147	else {
148	148	Parent::nextOut(e);
149	149	}
150	150	}
151	151
152	152	void firstIn(Arc &e, const Node &n) const {
153	153	Parent::firstOut(e,n);
154	154	if( Edge(e) != INVALID ) {
155	155	e.forward = false;
156	156	}
157	157	else {
158	158	Parent::firstIn(e,n);
159	159	e.forward = true;
160	160	}
161	161	}
162	162	void nextIn(Arc &e) const {
163	163	if( ! e.forward ) {
164	164	Node n = Parent::source(e);
165	165	Parent::nextOut(e);
166	166	if( Edge(e) == INVALID ) {
167	167	Parent::firstIn(e, n);
168	168	e.forward = true;
169	169	}
170	170	}
171	171	else {
172	172	Parent::nextIn(e);
173	173	}
174	174	}
175	175
176	176	void firstInc(Edge &e, bool &d, const Node &n) const {
177	177	d = true;
178	178	Parent::firstOut(e, n);
179	179	if (e != INVALID) return;
180	180	d = false;
181	181	Parent::firstIn(e, n);
182	182	}
183	183
184	184	void nextInc(Edge &e, bool &d) const {
185	185	if (d) {
186	186	Node s = Parent::source(e);
187	187	Parent::nextOut(e);
188	188	if (e != INVALID) return;
189	189	d = false;
190	190	Parent::firstIn(e, s);
191	191	} else {
192	192	Parent::nextIn(e);
193	193	}
194	194	}
195	195
196	196	Node nodeFromId(int ix) const {
197	197	return Parent::nodeFromId(ix);
198	198	}
199	199
200	200	Arc arcFromId(int ix) const {
201	201	return direct(Parent::arcFromId(ix >> 1), bool(ix & 1));
202	202	}
203	203
204	204	Edge edgeFromId(int ix) const {
205	205	return Parent::arcFromId(ix);
206	206	}
207	207
208	208	int id(const Node &n) const {
209	209	return Parent::id(n);
210	210	}
211	211
212	212	int id(const Edge &e) const {
213	213	return Parent::id(e);
214	214	}
215	215
216	216	int id(const Arc &e) const {
217	217	return 2 * Parent::id(e) + int(e.forward);
218	218	}
219	219
220	220	int maxNodeId() const {
221	221	return Parent::maxNodeId();
222	222	}
223	223
224	224	int maxArcId() const {
225	225	return 2 * Parent::maxArcId() + 1;
226	226	}
227	227
228	228	int maxEdgeId() const {
229	229	return Parent::maxArcId();
230	230	}
231	231
232	232	int arcNum() const {
233	233	return 2 * Parent::arcNum();
234	234	}
235	235
236	236	int edgeNum() const {
237	237	return Parent::arcNum();
238	238	}
239	239
240	240	Arc findArc(Node s, Node t, Arc p = INVALID) const {
241	241	if (p == INVALID) {
242	242	Edge arc = Parent::findArc(s, t);
243	243	if (arc != INVALID) return direct(arc, true);
244	244	arc = Parent::findArc(t, s);
245	245	if (arc != INVALID) return direct(arc, false);
246	246	} else if (direction(p)) {
247	247	Edge arc = Parent::findArc(s, t, p);
248	248	if (arc != INVALID) return direct(arc, true);
249	249	arc = Parent::findArc(t, s);
250	250	if (arc != INVALID) return direct(arc, false);
251	251	} else {
252	252	Edge arc = Parent::findArc(t, s, p);
253	253	if (arc != INVALID) return direct(arc, false);
254	254	}
255	255	return INVALID;
256	256	}
257	257
258	258	Edge findEdge(Node s, Node t, Edge p = INVALID) const {
259	259	if (s != t) {
260	260	if (p == INVALID) {
261	261	Edge arc = Parent::findArc(s, t);
262	262	if (arc != INVALID) return arc;
263	263	arc = Parent::findArc(t, s);
264	264	if (arc != INVALID) return arc;
265	265	} else if (Parent::s(p) == s) {
266	266	Edge arc = Parent::findArc(s, t, p);
267	267	if (arc != INVALID) return arc;
268	268	arc = Parent::findArc(t, s);
269	269	if (arc != INVALID) return arc;
270	270	} else {
271	271	Edge arc = Parent::findArc(t, s, p);
272	272	if (arc != INVALID) return arc;
273	273	}
274	274	} else {
275	275	return Parent::findArc(s, t, p);
276	276	}
277	277	return INVALID;
278	278	}
279	279	};
280	280
281	281	template <typename Base>
282	282	class BidirBpGraphExtender : public Base {
	283	typedef Base Parent;
	284
283	285	public:
284		typedef Base Parent;
285	286	typedef BidirBpGraphExtender Digraph;
286	287
287	288	typedef typename Parent::Node Node;
288	289	typedef typename Parent::Edge Edge;
289	290
290	291
291	292	using Parent::first;
292	293	using Parent::next;
293	294
294	295	using Parent::id;
295	296
296	297	class Red : public Node {
297	298	friend class BidirBpGraphExtender;
298	299	public:
299	300	Red() {}
300	301	Red(const Node& node) : Node(node) {
301	302	LEMON_DEBUG(Parent::red(node) \|\| node == INVALID,
302	303	typename Parent::NodeSetError());
303	304	}
304	305	Red& operator=(const Node& node) {
305	306	LEMON_DEBUG(Parent::red(node) \|\| node == INVALID,
306	307	typename Parent::NodeSetError());
307	308	Node::operator=(node);
308	309	return *this;
309	310	}
310	311	Red(Invalid) : Node(INVALID) {}
311	312	Red& operator=(Invalid) {
312	313	Node::operator=(INVALID);
313	314	return *this;
314	315	}
315	316	};
316	317
317	318	void first(Red& node) const {
318	319	Parent::firstRed(static_cast<Node&>(node));
319	320	}
320	321	void next(Red& node) const {
321	322	Parent::nextRed(static_cast<Node&>(node));
322	323	}
323	324
324	325	int id(const Red& node) const {
325	326	return Parent::redId(node);
326	327	}
327	328
328	329	class Blue : public Node {
329	330	friend class BidirBpGraphExtender;
330	331	public:
331	332	Blue() {}
332	333	Blue(const Node& node) : Node(node) {
333	334	LEMON_DEBUG(Parent::blue(node) \|\| node == INVALID,
334	335	typename Parent::NodeSetError());
335	336	}
336	337	Blue& operator=(const Node& node) {
337	338	LEMON_DEBUG(Parent::blue(node) \|\| node == INVALID,
338	339	typename Parent::NodeSetError());
339	340	Node::operator=(node);
340	341	return *this;
341	342	}
342	343	Blue(Invalid) : Node(INVALID) {}
343	344	Blue& operator=(Invalid) {
344	345	Node::operator=(INVALID);
345	346	return *this;
346	347	}
347	348	};
348	349
349	350	void first(Blue& node) const {
350	351	Parent::firstBlue(static_cast<Node&>(node));
351	352	}
352	353	void next(Blue& node) const {
353	354	Parent::nextBlue(static_cast<Node&>(node));
354	355	}
355	356
356	357	int id(const Blue& node) const {
357	358	return Parent::redId(node);
358	359	}
359	360
360	361	Node source(const Edge& arc) const {
361	362	return red(arc);
362	363	}
363	364	Node target(const Edge& arc) const {
364	365	return blue(arc);
365	366	}
366	367
367	368	void firstInc(Edge& arc, bool& dir, const Node& node) const {
368	369	if (Parent::red(node)) {
369	370	Parent::firstFromRed(arc, node);
370	371	dir = true;
371	372	} else {
372	373	Parent::firstFromBlue(arc, node);
373	374	dir = static_cast<Edge&>(arc) == INVALID;
374	375	}
375	376	}
376	377	void nextInc(Edge& arc, bool& dir) const {
377	378	if (dir) {
378	379	Parent::nextFromRed(arc);
379	380	} else {
380	381	Parent::nextFromBlue(arc);
381	382	if (arc == INVALID) dir = true;
382	383	}
383	384	}
384	385
385	386	class Arc : public Edge {
386	387	friend class BidirBpGraphExtender;
387	388	protected:
388	389	bool forward;
389	390
390	391	Arc(const Edge& arc, bool _forward)
391	392	: Edge(arc), forward(_forward) {}
392	393
393	394	public:
394	395	Arc() {}
395	396	Arc (Invalid) : Edge(INVALID), forward(true) {}
396	397	bool operator==(const Arc& i) const {
397	398	return Edge::operator==(i) && forward == i.forward;
398	399	}
399	400	bool operator!=(const Arc& i) const {
400	401	return Edge::operator!=(i) \|\| forward != i.forward;
401	402	}
402	403	bool operator<(const Arc& i) const {
403	404	return Edge::operator<(i) \|\|
404	405	(!(i.forward<forward) && Edge(*this)<Edge(i));
405	406	}
406	407	};
407	408
408	409	void first(Arc& arc) const {
409	410	Parent::first(static_cast<Edge&>(arc));
410	411	arc.forward = true;
411	412	}
412	413
413	414	void next(Arc& arc) const {
414	415	if (!arc.forward) {
415	416	Parent::next(static_cast<Edge&>(arc));
416	417	}
417	418	arc.forward = !arc.forward;
418	419	}
419	420
420	421	void firstOut(Arc& arc, const Node& node) const {
421	422	if (Parent::red(node)) {
422	423	Parent::firstFromRed(arc, node);
423	424	arc.forward = true;
424	425	} else {
425	426	Parent::firstFromBlue(arc, node);
426	427	arc.forward = static_cast<Edge&>(arc) == INVALID;
427	428	}
428	429	}
429	430	void nextOut(Arc& arc) const {
430	431	if (arc.forward) {
431	432	Parent::nextFromRed(arc);
432	433	} else {
433	434	Parent::nextFromBlue(arc);
434	435	arc.forward = static_cast<Edge&>(arc) == INVALID;
435	436	}
436	437	}
437	438
438	439	void firstIn(Arc& arc, const Node& node) const {
439	440	if (Parent::blue(node)) {
440	441	Parent::firstFromBlue(arc, node);
441	442	arc.forward = true;
442	443	} else {
443	444	Parent::firstFromRed(arc, node);
444	445	arc.forward = static_cast<Edge&>(arc) == INVALID;
445	446	}
446	447	}
447	448	void nextIn(Arc& arc) const {
448	449	if (arc.forward) {
449	450	Parent::nextFromBlue(arc);
450	451	} else {
451	452	Parent::nextFromRed(arc);
452	453	arc.forward = static_cast<Edge&>(arc) == INVALID;
453	454	}
454	455	}
455	456
456	457	Node source(const Arc& arc) const {
457	458	return arc.forward ? Parent::red(arc) : Parent::blue(arc);
458	459	}
459	460	Node target(const Arc& arc) const {
460	461	return arc.forward ? Parent::blue(arc) : Parent::red(arc);
461	462	}
462	463
463	464	int id(const Arc& arc) const {
464	465	return (Parent::id(static_cast<const Edge&>(arc)) << 1) +
465	466	(arc.forward ? 0 : 1);
466	467	}
467	468	Arc arcFromId(int ix) const {
468	469	return Arc(Parent::fromEdgeId(ix >> 1), (ix & 1) == 0);
469	470	}
470	471	int maxArcId() const {
471	472	return (Parent::maxEdgeId() << 1) + 1;
472	473	}
473	474
474	475	bool direction(const Arc& arc) const {
475	476	return arc.forward;
476	477	}
477	478
478	479	Arc direct(const Edge& arc, bool dir) const {
479	480	return Arc(arc, dir);
480	481	}
481	482
482	483	int arcNum() const {
483	484	return 2 * Parent::edgeNum();
484	485	}
485	486
486	487	int edgeNum() const {
487	488	return Parent::edgeNum();
488	489	}
489	490
490	491
491	492	};
492	493	}
493	494
494	495	#endif