LEMON/LEMON-official Changeset - r559:9b9ffe7d9b75

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Changeset - r559:9b9ffe7d9b75

« 555:861a9d

560:2a136d »

r559:9b9ffe7d9b75

Fri, 13 Feb 2009 13:29:28

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deba@inf.elte.hu
deba@inf.elte.hu

Fixes for MSVC 2008 in grap_adaptors.h and edge_set.h (#194) Several renamings and changes in adaptors and edge sets - Fixing scope usage for MSVC - ResidualDigraph based on SubDigraph instead of FilterArcs - Use initialize() in adaptors and edge sets - Wrap ListDigraph for edge set tests

0 4 0

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4 files changed with 810 insertions and 821 deletions:

lemon/adaptors.h

616

627

lemon/edge_set.h

188

test/CMakeLists.txt

test/edge_set_test.cc

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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/tolerance.h>
 		#include <algorithm>
 		namespace lemon {
-		  template<typename _Digraph>
+		#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 _Digraph Digraph;
+		    typedef DGR Digraph;
 		    typedef DigraphAdaptorBase Adaptor;
 		    typedef Digraph ParentDigraph;
 		  protected:
-		    Digraph* _digraph;
+		    DGR* _digraph;
 		    DigraphAdaptorBase() : _digraph(0) { }
-		    void setDigraph(Digraph& digraph) { _digraph = &digraph; }
+		    void initialize(DGR& digraph) { _digraph = &digraph; }
 		  public:
 		    DigraphAdaptorBase(Digraph& digraph) : _digraph(&digraph) { }
 		    typedef typename Digraph::Node Node;
 		    typedef typename Digraph::Arc Arc;
 		    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<Digraph> NodeNumTag;
+		    typedef NodeNumTagIndicator<DGR> NodeNumTag;
 		    int nodeNum() const { return _digraph->nodeNum(); }
-		    typedef ArcNumTagIndicator<Digraph> ArcNumTag;
+		    typedef ArcNumTagIndicator<DGR> ArcNumTag;
 		    int arcNum() const { return _digraph->arcNum(); }
-		    typedef FindArcTagIndicator<Digraph> FindArcTag;
+		    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<Digraph, Node>::ItemNotifier NodeNotifier;
+		    typedef typename ItemSetTraits<DGR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const { return _digraph->notifier(Node()); }
-		    typedef typename ItemSetTraits<Digraph, Arc>::ItemNotifier ArcNotifier;
+		    typedef typename ItemSetTraits<DGR, Arc>::ItemNotifier ArcNotifier;
 		    ArcNotifier& notifier(Arc) const { return _digraph->notifier(Arc()); }
 		    template <typename _Value>
 		    class NodeMap : public Digraph::template NodeMap<_Value> {
 		    template <typename V>
 		    class NodeMap : public DGR::template NodeMap<V> {
 		    public:
-		      typedef typename Digraph::template NodeMap<_Value> Parent;
+		      typedef typename DGR::template NodeMap<V> Parent;
 		      explicit NodeMap(const Adaptor& adaptor)
 		        : Parent(*adaptor._digraph) {}
-		      NodeMap(const Adaptor& adaptor, const _Value& value)
+		      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 _Value>
 		    class ArcMap : public Digraph::template ArcMap<_Value> {
 		    template <typename V>
 		    class ArcMap : public DGR::template ArcMap<V> {
 		    public:
 		      typedef typename Digraph::template ArcMap<_Value> Parent;
-		      explicit ArcMap(const Adaptor& adaptor)
+		      typedef typename DGR::template ArcMap<V> Parent;
 		      explicit ArcMap(const DigraphAdaptorBase<DGR>& adaptor)
 		        : Parent(*adaptor._digraph) {}
-		      ArcMap(const Adaptor& adaptor, const _Value& value)
+		      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 _Graph>
+		  template<typename GR>
 		  class GraphAdaptorBase {
 		  public:
 		    typedef _Graph Graph;
 		    typedef Graph ParentGraph;
 		    typedef GR Graph;
 		  protected:
-		    Graph* _graph;
+		    GR* _graph;
 		    GraphAdaptorBase() : _graph(0) {}
-		    void setGraph(Graph& graph) { _graph = &graph; }
+		    void initialize(GR& graph) { _graph = &graph; }
 		  public:
 		    GraphAdaptorBase(Graph& graph) : _graph(&graph) {}
 		    typedef typename Graph::Node Node;
 		    typedef typename Graph::Arc Arc;
-		    typedef typename Graph::Edge Edge;
+		    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<Graph, Node>::ItemNotifier NodeNotifier;
+		    typedef typename ItemSetTraits<GR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const { return _graph->notifier(Node()); }
-		    typedef typename ItemSetTraits<Graph, Arc>::ItemNotifier ArcNotifier;
+		    typedef typename ItemSetTraits<GR, Arc>::ItemNotifier ArcNotifier;
 		    ArcNotifier& notifier(Arc) const { return _graph->notifier(Arc()); }
-		    typedef typename ItemSetTraits<Graph, Edge>::ItemNotifier EdgeNotifier;
+		    typedef typename ItemSetTraits<GR, Edge>::ItemNotifier EdgeNotifier;
 		    EdgeNotifier& notifier(Edge) const { return _graph->notifier(Edge()); }
 		    template <typename _Value>
 		    class NodeMap : public Graph::template NodeMap<_Value> {
 		    template <typename V>
 		    class NodeMap : public GR::template NodeMap<V> {
 		    public:
 		      typedef typename Graph::template NodeMap<_Value> Parent;
 		      explicit NodeMap(const GraphAdaptorBase<Graph>& adapter)
 		      typedef typename GR::template NodeMap<V> Parent;
 		      explicit NodeMap(const GraphAdaptorBase<GR>& adapter)
 		        : Parent(*adapter._graph) {}
-		      NodeMap(const GraphAdaptorBase<Graph>& adapter, const _Value& value)
+		      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 _Value>
 		    class ArcMap : public Graph::template ArcMap<_Value> {
 		    template <typename V>
 		    class ArcMap : public GR::template ArcMap<V> {
 		    public:
 		      typedef typename Graph::template ArcMap<_Value> Parent;
 		      explicit ArcMap(const GraphAdaptorBase<Graph>& adapter)
 		      typedef typename GR::template ArcMap<V> Parent;
 		      explicit ArcMap(const GraphAdaptorBase<GR>& adapter)
 		        : Parent(*adapter._graph) {}
-		      ArcMap(const GraphAdaptorBase<Graph>& adapter, const _Value& value)
+		      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 _Value>
 		    class EdgeMap : public Graph::template EdgeMap<_Value> {
 		    template <typename V>
 		    class EdgeMap : public GR::template EdgeMap<V> {
 		    public:
 		      typedef typename Graph::template EdgeMap<_Value> Parent;
 		      explicit EdgeMap(const GraphAdaptorBase<Graph>& adapter)
 		      typedef typename GR::template EdgeMap<V> Parent;
 		      explicit EdgeMap(const GraphAdaptorBase<GR>& adapter)
 		        : Parent(*adapter._graph) {}
-		      EdgeMap(const GraphAdaptorBase<Graph>& adapter, const _Value& value)
+		      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 _Digraph>
 		  class ReverseDigraphBase : public DigraphAdaptorBase<_Digraph> {
 		  template <typename DGR>
 		  class ReverseDigraphBase : public DigraphAdaptorBase<DGR> {
 		  public:
 		    typedef _Digraph Digraph;
 		    typedef DigraphAdaptorBase<_Digraph> Parent;
 		    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<Digraph> FindArcTag;
+		    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 GR The type of the adapted digraph.
+		  /// \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 GR>
+		  template<typename DGR>
 		#ifdef DOXYGEN
 		  class ReverseDigraph {
 		#else
 		  class ReverseDigraph :
-		    public DigraphAdaptorExtender<ReverseDigraphBase<GR> > {
+		    public DigraphAdaptorExtender<ReverseDigraphBase<DGR> > {
 		#endif
 		  public:
 		    /// The type of the adapted digraph.
 		    typedef GR Digraph;
 		    typedef DigraphAdaptorExtender<ReverseDigraphBase<GR> > Parent;
 		    typedef DGR Digraph;
 		    typedef DigraphAdaptorExtender<ReverseDigraphBase<DGR> > Parent;
 		  protected:
 		    ReverseDigraph() { }
 		  public:
 		    /// \brief Constructor
 		    ///
 		    /// Creates a reverse digraph adaptor for the given digraph.
 		    explicit ReverseDigraph(Digraph& digraph) {
 		      Parent::setDigraph(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 GR>
 		  ReverseDigraph<const GR> reverseDigraph(const GR& digraph) {
-		    return ReverseDigraph<const GR>(digraph);
+		  template<typename DGR>
 		  ReverseDigraph<const DGR> reverseDigraph(const DGR& digraph) {
 		    return ReverseDigraph<const DGR>(digraph);
+		  }
 		  template <typename _Digraph, typename _NodeFilterMap,
 		            typename _ArcFilterMap, bool _checked = true>
-		  class SubDigraphBase : public DigraphAdaptorBase<_Digraph> {
+		  template <typename DGR, typename NF, typename AF, bool ch = true>
 		  class SubDigraphBase : public DigraphAdaptorBase<DGR> {
 		  public:
 		    typedef _Digraph Digraph;
 		    typedef _NodeFilterMap NodeFilterMap;
-		    typedef _ArcFilterMap ArcFilterMap;
+		    typedef DGR Digraph;
 		    typedef NF NodeFilterMap;
 		    typedef AF ArcFilterMap;
 		    typedef SubDigraphBase Adaptor;
-		    typedef DigraphAdaptorBase<_Digraph> Parent;
+		    typedef DigraphAdaptorBase<DGR> Parent;
 		  protected:
 		    NodeFilterMap* _node_filter;
 		    ArcFilterMap* _arc_filter;
 		    NF* _node_filter;
 		    AF* _arc_filter;
 		    SubDigraphBase()
 		      : Parent(), _node_filter(0), _arc_filter(0) { }
-		    void setNodeFilterMap(NodeFilterMap& node_filter) {
+		    void initialize(DGR& digraph, NF& node_filter, AF& arc_filter) {
 		      Parent::initialize(digraph);
 		      _node_filter = &node_filter;
+		    }
 		    void setArcFilterMap(ArcFilterMap& arc_filter) {
 		      _arc_filter = &arc_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<Digraph> FindArcTag;
+		    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 _Value>
 		    class NodeMap : public SubMapExtender<Adaptor,
-		      typename Parent::template NodeMap<_Value> > {
+		  public:
 		    template <typename V>
 		    class NodeMap
 		      : public SubMapExtender<SubDigraphBase<DGR, NF, AF, ch>,
 			      LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, NodeMap<V>)> {
 		    public:
 		      typedef _Value Value;
 		      typedef SubMapExtender<Adaptor, typename Parent::
 		                             template NodeMap<Value> > MapParent;
 		      NodeMap(const Adaptor& adaptor)
 		        : MapParent(adaptor) {}
 		      NodeMap(const Adaptor& adaptor, const Value& value)
 		        : MapParent(adaptor, value) {}
 		      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) {
-		        MapParent::operator=(cmap);
+		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename _Value>
 		    class ArcMap : public SubMapExtender<Adaptor,
-		      typename Parent::template ArcMap<_Value> > {
+		    template <typename V>
 		    class ArcMap
 		      : public SubMapExtender<SubDigraphBase<DGR, NF, AF, ch>,
 			      LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, ArcMap<V>)> {
 		    public:
 		      typedef _Value Value;
 		      typedef SubMapExtender<Adaptor, typename Parent::
 		                             template ArcMap<Value> > MapParent;
 		      ArcMap(const Adaptor& adaptor)
 		        : MapParent(adaptor) {}
 		      ArcMap(const Adaptor& adaptor, const Value& value)
 		        : MapParent(adaptor, value) {}
 		      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) {
-		        MapParent::operator=(cmap);
+		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  };
 		  template <typename _Digraph, typename _NodeFilterMap, typename _ArcFilterMap>
 		  class SubDigraphBase<_Digraph, _NodeFilterMap, _ArcFilterMap, false>
-		    : public DigraphAdaptorBase<_Digraph> {
+		  template <typename DGR, typename NF, typename AF>
 		  class SubDigraphBase<DGR, NF, AF, false>
 		    : public DigraphAdaptorBase<DGR> {
 		  public:
 		    typedef _Digraph Digraph;
 		    typedef _NodeFilterMap NodeFilterMap;
-		    typedef _ArcFilterMap ArcFilterMap;
+		    typedef DGR Digraph;
 		    typedef NF NodeFilterMap;
 		    typedef AF ArcFilterMap;
 		    typedef SubDigraphBase Adaptor;
 		    typedef DigraphAdaptorBase<Digraph> Parent;
 		  protected:
 		    NodeFilterMap* _node_filter;
 		    ArcFilterMap* _arc_filter;
 		    NF* _node_filter;
 		    AF* _arc_filter;
 		    SubDigraphBase()
 		      : Parent(), _node_filter(0), _arc_filter(0) { }
-		    void setNodeFilterMap(NodeFilterMap& node_filter) {
+		    void initialize(DGR& digraph, NF& node_filter, AF& arc_filter) {
 		      Parent::initialize(digraph);
 		      _node_filter = &node_filter;
+		    }
 		    void setArcFilterMap(ArcFilterMap& arc_filter) {
 		      _arc_filter = &arc_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<Digraph> FindArcTag;
+		    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 _Value>
 		    class NodeMap : public SubMapExtender<Adaptor,
-		      typename Parent::template NodeMap<_Value> > {
+		    template <typename V>
 		    class NodeMap
 		      : public SubMapExtender<SubDigraphBase<DGR, NF, AF, false>,
 		          LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, NodeMap<V>)> {
 		    public:
 		      typedef _Value Value;
 		      typedef SubMapExtender<Adaptor, typename Parent::
 		                             template NodeMap<Value> > MapParent;
 		      NodeMap(const Adaptor& adaptor)
 		        : MapParent(adaptor) {}
 		      NodeMap(const Adaptor& adaptor, const Value& value)
 		        : MapParent(adaptor, value) {}
 		      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) {
-		        MapParent::operator=(cmap);
+		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename _Value>
 		    class ArcMap : public SubMapExtender<Adaptor,
-		      typename Parent::template ArcMap<_Value> > {
+		    template <typename V>
 		    class ArcMap
 		      : public SubMapExtender<SubDigraphBase<DGR, NF, AF, false>,
 		          LEMON_SCOPE_FIX(DigraphAdaptorBase<DGR>, ArcMap<V>)> {
 		    public:
 		      typedef _Value Value;
 		      typedef SubMapExtender<Adaptor, typename Parent::
 		                             template ArcMap<Value> > MapParent;
 		      ArcMap(const Adaptor& adaptor)
 		        : MapParent(adaptor) {}
 		      ArcMap(const Adaptor& adaptor, const Value& value)
 		        : MapParent(adaptor, value) {}
 		      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) {
-		        MapParent::operator=(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 GR The type of the adapted digraph.
+		  /// \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 "GR::NodeMap<bool>".
+		  /// \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 "GR::ArcMap<bool>".
+		  /// \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 GR, typename NF, typename AF>
+		  template<typename DGR, typename NF, typename AF>
 		  class SubDigraph {
 		#else
 		  template<typename GR,
 		           typename NF = typename GR::template NodeMap<bool>,
-		           typename AF = typename GR::template ArcMap<bool> >
+		  template<typename DGR,
 		           typename NF = typename DGR::template NodeMap<bool>,
 		           typename AF = typename DGR::template ArcMap<bool> >
 		  class SubDigraph :
-		    public DigraphAdaptorExtender<SubDigraphBase<GR, NF, AF, true> > {
+		    public DigraphAdaptorExtender<SubDigraphBase<DGR, NF, AF, true> > {
 		#endif
 		  public:
 		    /// The type of the adapted digraph.
-		    typedef GR 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<GR, NF, AF, true> >
+		    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(Digraph& digraph, NodeFilterMap& node_filter,
 		               ArcFilterMap& arc_filter) {
 		      setDigraph(digraph);
 		      setNodeFilterMap(node_filter);
-		      setArcFilterMap(arc_filter);
+		    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 GR, typename NF, typename AF>
 		  SubDigraph<const GR, NF, AF>
 		  subDigraph(const GR& digraph,
 		             NF& node_filter_map, AF& arc_filter_map) {
 		    return SubDigraph<const GR, NF, AF>
 		      (digraph, node_filter_map, arc_filter_map);
 		  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 GR, typename NF, typename AF>
 		  SubDigraph<const GR, const NF, AF>
 		  subDigraph(const GR& digraph,
 		             const NF& node_filter_map, AF& arc_filter_map) {
 		    return SubDigraph<const GR, const NF, AF>
 		      (digraph, node_filter_map, arc_filter_map);
 		  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 GR, typename NF, typename AF>
 		  SubDigraph<const GR, NF, const AF>
 		  subDigraph(const GR& digraph,
 		             NF& node_filter_map, const AF& arc_filter_map) {
 		    return SubDigraph<const GR, NF, const AF>
 		      (digraph, node_filter_map, arc_filter_map);
 		  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 GR, typename NF, typename AF>
 		  SubDigraph<const GR, const NF, const AF>
 		  subDigraph(const GR& digraph,
 		             const NF& node_filter_map, const AF& arc_filter_map) {
 		    return SubDigraph<const GR, const NF, const AF>
 		      (digraph, node_filter_map, arc_filter_map);
 		  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 _Graph, typename _NodeFilterMap,
 		            typename _EdgeFilterMap, bool _checked = true>
-		  class SubGraphBase : public GraphAdaptorBase<_Graph> {
+		  template <typename GR, typename NF, typename EF, bool ch = true>
 		  class SubGraphBase : public GraphAdaptorBase<GR> {
 		  public:
 		    typedef _Graph Graph;
 		    typedef _NodeFilterMap NodeFilterMap;
-		    typedef _EdgeFilterMap EdgeFilterMap;
+		    typedef GR Graph;
 		    typedef NF NodeFilterMap;
 		    typedef EF EdgeFilterMap;
 		    typedef SubGraphBase Adaptor;
-		    typedef GraphAdaptorBase<_Graph> Parent;
+		    typedef GraphAdaptorBase<GR> Parent;
 		  protected:
 		    NodeFilterMap* _node_filter_map;
 		    EdgeFilterMap* _edge_filter_map;
 		    NF* _node_filter;
 		    EF* _edge_filter;
 		    SubGraphBase()
 		      : Parent(), _node_filter_map(0), _edge_filter_map(0) { }
 		    void setNodeFilterMap(NodeFilterMap& node_filter_map) {
 		      _node_filter_map=&node_filter_map;
+		    }
 		    void setEdgeFilterMap(EdgeFilterMap& edge_filter_map) {
-		      _edge_filter_map=&edge_filter_map;
+		      : 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_map)[i]) Parent::next(i);
+		      while (i!=INVALID && !(*_node_filter)[i]) Parent::next(i);
+		    }
 		    void first(Arc& i) const {
 		      Parent::first(i);
 		      while (i!=INVALID && (!(*_edge_filter_map)[i]
 		                            || !(*_node_filter_map)[Parent::source(i)]
-		                            || !(*_node_filter_map)[Parent::target(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_map)[i]
 		                            || !(*_node_filter_map)[Parent::u(i)]
-		                            || !(*_node_filter_map)[Parent::v(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_map)[i]
 		                            || !(*_node_filter_map)[Parent::source(i)]))
 		      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_map)[i]
 		                            || !(*_node_filter_map)[Parent::target(i)]))
 		      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_map)[i]
 		                            || !(*_node_filter_map)[Parent::u(i)]
-		                            || !(*_node_filter_map)[Parent::v(i)]))
+		      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_map)[i]) 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_map)[i]
 		                            || !(*_node_filter_map)[Parent::source(i)]
-		                            || !(*_node_filter_map)[Parent::target(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_map)[i]
 		                            || !(*_node_filter_map)[Parent::u(i)]
-		                            || !(*_node_filter_map)[Parent::v(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_map)[i]
 		                            || !(*_node_filter_map)[Parent::source(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_map)[i]
 		                            || !(*_node_filter_map)[Parent::target(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_map)[i]
 		                            || !(*_node_filter_map)[Parent::u(i)]
-		                            || !(*_node_filter_map)[Parent::v(i)]))
+		      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_map->set(n, v); }
 		    void status(const Edge& e, bool v) const { _edge_filter_map->set(e, v); }
 		    bool status(const Node& n) const { return (*_node_filter_map)[n]; }
-		    bool status(const Edge& e) const { return (*_edge_filter_map)[e]; }
+		    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_map)[u] || !(*_node_filter_map)[v]) {
+		      if (!(*_node_filter)[u] || !(*_node_filter)[v]) {
 		        return INVALID;
+		      }
 		      Arc arc = Parent::findArc(u, v, prev);
-		      while (arc != INVALID && !(*_edge_filter_map)[arc]) {
+		      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_map)[u] || !(*_node_filter_map)[v]) {
+		      if (!(*_node_filter)[u] || !(*_node_filter)[v]) {
 		        return INVALID;
+		      }
 		      Edge edge = Parent::findEdge(u, v, prev);
-		      while (edge != INVALID && !(*_edge_filter_map)[edge]) {
+		      while (edge != INVALID && !(*_edge_filter)[edge]) {
 		        edge = Parent::findEdge(u, v, edge);
+		      }
 		      return edge;
+		    }
 		    template <typename _Value>
 		    class NodeMap : public SubMapExtender<Adaptor,
-		      typename Parent::template NodeMap<_Value> > {
+		    template <typename V>
 		    class NodeMap
 		      : public SubMapExtender<SubGraphBase<GR, NF, EF, ch>,
 		          LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, NodeMap<V>)> {
 		    public:
 		      typedef _Value Value;
 		      typedef SubMapExtender<Adaptor, typename Parent::
 		                             template NodeMap<Value> > MapParent;
 		      NodeMap(const Adaptor& adaptor)
 		        : MapParent(adaptor) {}
 		      NodeMap(const Adaptor& adaptor, const Value& value)
 		        : MapParent(adaptor, value) {}
 		      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) {
-		        MapParent::operator=(cmap);
+		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename _Value>
 		    class ArcMap : public SubMapExtender<Adaptor,
-		      typename Parent::template ArcMap<_Value> > {
+		    template <typename V>
 		    class ArcMap
 		      : public SubMapExtender<SubGraphBase<GR, NF, EF, ch>,
 		          LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, ArcMap<V>)> {
 		    public:
 		      typedef _Value Value;
 		      typedef SubMapExtender<Adaptor, typename Parent::
 		                             template ArcMap<Value> > MapParent;
 		      ArcMap(const Adaptor& adaptor)
 		        : MapParent(adaptor) {}
 		      ArcMap(const Adaptor& adaptor, const Value& value)
 		        : MapParent(adaptor, value) {}
 		      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) {
-		        MapParent::operator=(cmap);
+		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename _Value>
 		    class EdgeMap : public SubMapExtender<Adaptor,
-		      typename Parent::template EdgeMap<_Value> > {
+		    template <typename V>
 		    class EdgeMap
 		      : public SubMapExtender<SubGraphBase<GR, NF, EF, ch>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, EdgeMap<V>)> {
 		    public:
 		      typedef _Value Value;
 		      typedef SubMapExtender<Adaptor, typename Parent::
 		                             template EdgeMap<Value> > MapParent;
 		      EdgeMap(const Adaptor& adaptor)
 		        : MapParent(adaptor) {}
 		      EdgeMap(const Adaptor& adaptor, const Value& value)
-		        : MapParent(adaptor, value) {}
+		      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) {
-		        MapParent::operator=(cmap);
+		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  };
 		  template <typename _Graph, typename _NodeFilterMap, typename _EdgeFilterMap>
 		  class SubGraphBase<_Graph, _NodeFilterMap, _EdgeFilterMap, false>
-		    : public GraphAdaptorBase<_Graph> {
+		  template <typename GR, typename NF, typename EF>
 		  class SubGraphBase<GR, NF, EF, false>
 		    : public GraphAdaptorBase<GR> {
 		  public:
 		    typedef _Graph Graph;
 		    typedef _NodeFilterMap NodeFilterMap;
-		    typedef _EdgeFilterMap EdgeFilterMap;
+		    typedef GR Graph;
 		    typedef NF NodeFilterMap;
 		    typedef EF EdgeFilterMap;
 		    typedef SubGraphBase Adaptor;
-		    typedef GraphAdaptorBase<_Graph> Parent;
+		    typedef GraphAdaptorBase<GR> Parent;
 		  protected:
 		    NodeFilterMap* _node_filter_map;
 		    EdgeFilterMap* _edge_filter_map;
 		    SubGraphBase() : Parent(),
 		                     _node_filter_map(0), _edge_filter_map(0) { }
 		    void setNodeFilterMap(NodeFilterMap& node_filter_map) {
 		      _node_filter_map=&node_filter_map;
+		    }
 		    void setEdgeFilterMap(EdgeFilterMap& edge_filter_map) {
 		      _edge_filter_map=&edge_filter_map;
 		    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_map)[i]) Parent::next(i);
+		      while (i!=INVALID && !(*_node_filter)[i]) Parent::next(i);
+		    }
 		    void first(Arc& i) const {
 		      Parent::first(i);
-		      while (i!=INVALID && !(*_edge_filter_map)[i]) Parent::next(i);
+		      while (i!=INVALID && !(*_edge_filter)[i]) Parent::next(i);
+		    }
 		    void first(Edge& i) const {
 		      Parent::first(i);
-		      while (i!=INVALID && !(*_edge_filter_map)[i]) Parent::next(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_map)[i]) Parent::nextIn(i);
+		      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_map)[i]) Parent::nextOut(i);
+		      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_map)[i]) Parent::nextInc(i, d);
+		      while (i!=INVALID && !(*_edge_filter)[i]) Parent::nextInc(i, d);
+		    }
 		    void next(Node& i) const {
 		      Parent::next(i);
-		      while (i!=INVALID && !(*_node_filter_map)[i]) 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_map)[i]) 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_map)[i]) 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_map)[i]) 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_map)[i]) 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_map)[i]) Parent::nextInc(i, d);
+		      while (i!=INVALID && !(*_edge_filter)[i]) Parent::nextInc(i, d);
+		    }
 		    void status(const Node& n, bool v) const { _node_filter_map->set(n, v); }
 		    void status(const Edge& e, bool v) const { _edge_filter_map->set(e, v); }
 		    bool status(const Node& n) const { return (*_node_filter_map)[n]; }
-		    bool status(const Edge& e) const { return (*_edge_filter_map)[e]; }
+		    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_map)[arc]) {
+		      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_map)[edge]) {
+		      while (edge != INVALID && !(*_edge_filter)[edge]) {
 		        edge = Parent::findEdge(u, v, edge);
+		      }
 		      return edge;
+		    }
 		    template <typename _Value>
 		    class NodeMap : public SubMapExtender<Adaptor,
-		      typename Parent::template NodeMap<_Value> > {
+		    template <typename V>
 		    class NodeMap
 		      : public SubMapExtender<SubGraphBase<GR, NF, EF, false>,
 		          LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, NodeMap<V>)> {
 		    public:
 		      typedef _Value Value;
 		      typedef SubMapExtender<Adaptor, typename Parent::
 		                             template NodeMap<Value> > MapParent;
 		      NodeMap(const Adaptor& adaptor)
 		        : MapParent(adaptor) {}
 		      NodeMap(const Adaptor& adaptor, const Value& value)
 		        : MapParent(adaptor, value) {}
 		      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) {
-		        MapParent::operator=(cmap);
+		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename _Value>
 		    class ArcMap : public SubMapExtender<Adaptor,
-		      typename Parent::template ArcMap<_Value> > {
+		    template <typename V>
 		    class ArcMap
 		      : public SubMapExtender<SubGraphBase<GR, NF, EF, false>,
 		          LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, ArcMap<V>)> {
 		    public:
 		      typedef _Value Value;
 		      typedef SubMapExtender<Adaptor, typename Parent::
 		                             template ArcMap<Value> > MapParent;
 		      ArcMap(const Adaptor& adaptor)
 		        : MapParent(adaptor) {}
 		      ArcMap(const Adaptor& adaptor, const Value& value)
 		        : MapParent(adaptor, value) {}
 		      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) {
-		        MapParent::operator=(cmap);
+		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		    template <typename _Value>
 		    class EdgeMap : public SubMapExtender<Adaptor,
-		      typename Parent::template EdgeMap<_Value> > {
+		    template <typename V>
 		    class EdgeMap
 		      : public SubMapExtender<SubGraphBase<GR, NF, EF, false>,
 		        LEMON_SCOPE_FIX(GraphAdaptorBase<GR>, EdgeMap<V>)> {
 		    public:
 		      typedef _Value Value;
 		      typedef SubMapExtender<Adaptor, typename Parent::
 		                             template EdgeMap<Value> > MapParent;
 		      EdgeMap(const Adaptor& adaptor)
 		        : MapParent(adaptor) {}
 		      EdgeMap(const Adaptor& adaptor, const _Value& value)
-		        : MapParent(adaptor, value) {}
+		      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) {
-		        MapParent::operator=(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> >
 		    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(Graph& graph, NodeFilterMap& node_filter_map,
 		             EdgeFilterMap& edge_filter_map) {
 		      setGraph(graph);
 		      setNodeFilterMap(node_filter_map);
-		      setEdgeFilterMap(edge_filter_map);
+		    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_map, EF& edge_filter_map) {
 		  subGraph(const GR& graph, NF& node_filter, EF& edge_filter) {
 		    return SubGraph<const GR, NF, EF>
-		      (graph, node_filter_map, edge_filter_map);
+		      (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_map, EF& edge_filter_map) {
 		  subGraph(const GR& graph, const NF& node_filter, EF& edge_filter) {
 		    return SubGraph<const GR, const NF, EF>
-		      (graph, node_filter_map, edge_filter_map);
+		      (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_map, const EF& edge_filter_map) {
 		  subGraph(const GR& graph, NF& node_filter, const EF& edge_filter) {
 		    return SubGraph<const GR, NF, const EF>
-		      (graph, node_filter_map, edge_filter_map);
+		      (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_map, const EF& edge_filter_map) {
 		  subGraph(const GR& graph, const NF& node_filter, const EF& edge_filter) {
 		    return SubGraph<const GR, const NF, const EF>
-		      (graph, node_filter_map, edge_filter_map);
+		      (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, bool>, true> > {
+		      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, bool>, true> >
 		      Parent;
 		      SubDigraphBase<GR, NF, ConstMap<typename GR::Arc, Const<bool, true> >,
 		                     true> > Parent;
 		    typedef typename Parent::Node Node;
 		  protected:
 		    ConstMap<typename Digraph::Arc, bool> const_true_map;
 		    FilterNodes() : const_true_map(true) {
 		      Parent::setArcFilterMap(const_true_map);
+		    }
+		    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, NodeFilterMap& node_filter) :
 		      Parent(), const_true_map(true)
 		    FilterNodes(GR& graph, NF& node_filter)
 		      : Parent(), const_true_map()
+		    {
 		      Parent::setDigraph(graph);
 		      Parent::setNodeFilterMap(node_filter);
-		      Parent::setArcFilterMap(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, bool>, true> > {
+		      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, bool>, true> >
 		      Parent;
 		      SubGraphBase<GR, NF, ConstMap<typename GR::Edge, Const<bool, true> >,
 		                   true> > Parent;
 		    typedef typename Parent::Node Node;
 		  protected:
 		    ConstMap<typename Graph::Edge, bool> const_true_map;
 		    FilterNodes() : const_true_map(true) {
 		      Parent::setEdgeFilterMap(const_true_map);
+		    }
+		    ConstMap<typename GR::Edge, Const<bool, true> > const_true_map;
 		    FilterNodes() : const_true_map() {}
 		  public:
 		    FilterNodes(Graph& _graph, NodeFilterMap& node_filter_map) :
 		      Parent(), const_true_map(true) {
 		      Parent::setGraph(_graph);
 		      Parent::setNodeFilterMap(node_filter_map);
-		      Parent::setEdgeFilterMap(const_true_map);
+		    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_map) {
 		    return FilterNodes<const GR, NF>(graph, node_filter_map);
 		  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_map) {
 		    return FilterNodes<const GR, const NF>(graph, node_filter_map);
 		  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 GR The type of the adapted digraph.
+		  /// \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 "GR::ArcMap<bool>".
+		  /// \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 GR,
+		  template<typename DGR,
 		           typename AF>
 		  class FilterArcs {
 		#else
 		  template<typename GR,
 		           typename AF = typename GR::template ArcMap<bool> >
 		  template<typename DGR,
 		           typename AF = typename DGR::template ArcMap<bool> >
 		  class FilterArcs :
 		    public DigraphAdaptorExtender<
-		      SubDigraphBase<GR, ConstMap<typename GR::Node, bool>, AF, false> > {
+		      SubDigraphBase<DGR, ConstMap<typename DGR::Node, Const<bool, true> >,
 		                     AF, false> > {
 		#endif
 		  public:
 		    /// The type of the adapted digraph.
-		    typedef GR Digraph;
+		    typedef DGR Digraph;
 		    /// The type of the arc filter map.
 		    typedef AF ArcFilterMap;
 		    typedef DigraphAdaptorExtender<
 		      SubDigraphBase<GR, ConstMap<typename GR::Node, bool>, AF, false> >
 		      Parent;
 		      SubDigraphBase<DGR, ConstMap<typename DGR::Node, Const<bool, true> >,
 		                     AF, false> > Parent;
 		    typedef typename Parent::Arc Arc;
 		  protected:
 		    ConstMap<typename Digraph::Node, bool> const_true_map;
 		    FilterArcs() : const_true_map(true) {
 		      Parent::setNodeFilterMap(const_true_map);
+		    }
+		    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(Digraph& digraph, ArcFilterMap& arc_filter)
 		      : Parent(), const_true_map(true) {
 		      Parent::setDigraph(digraph);
 		      Parent::setNodeFilterMap(const_true_map);
-		      Parent::setArcFilterMap(arc_filter);
+		    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 GR, typename AF>
 		  FilterArcs<const GR, AF>
 		  filterArcs(const GR& digraph, AF& arc_filter_map) {
 		    return FilterArcs<const GR, AF>(digraph, arc_filter_map);
 		  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 GR, typename AF>
 		  FilterArcs<const GR, const AF>
 		  filterArcs(const GR& digraph, const AF& arc_filter_map) {
 		    return FilterArcs<const GR, const AF>(digraph, arc_filter_map);
 		  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,bool>, EF, false> > {
+		      SubGraphBase<GR, ConstMap<typename GR::Node, Const<bool, true> >,
 		                   EF, false> > {
 		#endif
 		  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,bool>, EF, false> >
 		      Parent;
 		      SubGraphBase<GR, ConstMap<typename GR::Node, Const<bool, true > >,
 		                   EF, false> > Parent;
 		    typedef typename Parent::Edge Edge;
 		  protected:
-		    ConstMap<typename Graph::Node, bool> const_true_map;
+		    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(Graph& graph, EdgeFilterMap& edge_filter_map) :
 		      Parent(), const_true_map(true) {
 		      Parent::setGraph(graph);
 		      Parent::setNodeFilterMap(const_true_map);
-		      Parent::setEdgeFilterMap(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_map) {
 		    return FilterEdges<const GR, EF>(graph, edge_filter_map);
 		  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_map) {
 		    return FilterEdges<const GR, const EF>(graph, edge_filter_map);
 		  filterEdges(const GR& graph, const EF& edge_filter) {
 		    return FilterEdges<const GR, const EF>(graph, edge_filter);
+		  }
-		  template <typename _Digraph>
+		  template <typename DGR>
 		  class UndirectorBase {
 		  public:
-		    typedef _Digraph Digraph;
+		    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;
+		    }
@@ -2017,290 +2007,291 @@
 		    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 _Value>
+		    template <typename V>
 		    class ArcMapBase {
 		    private:
-		      typedef typename Digraph::template ArcMap<_Value> MapImpl;
+		      typedef typename DGR::template ArcMap<V> MapImpl;
 		    public:
 		      typedef typename MapTraits<MapImpl>::ReferenceMapTag ReferenceMapTag;
-		      typedef _Value Value;
+		      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 Adaptor& adaptor) :
+		      ArcMapBase(const UndirectorBase<DGR>& adaptor) :
 		        _forward(*adaptor._digraph), _backward(*adaptor._digraph) {}
 		      ArcMapBase(const Adaptor& adaptor, const Value& v)
 		        : _forward(*adaptor._digraph, v), _backward(*adaptor._digraph, v) {}
 		      void set(const Arc& a, const Value& v) {
 		      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, v);
+		          _forward.set(a, value);
 		        } else {
-		          _backward.set(a, v);
+		          _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 _Value>
 		    class NodeMap : public Digraph::template NodeMap<_Value> {
 		    template <typename V>
 		    class NodeMap : public DGR::template NodeMap<V> {
 		    public:
 		      typedef _Value Value;
 		      typedef typename Digraph::template NodeMap<Value> Parent;
 		      explicit NodeMap(const Adaptor& adaptor)
 		      typedef V Value;
 		      typedef typename DGR::template NodeMap<Value> Parent;
 		      explicit NodeMap(const UndirectorBase<DGR>& adaptor)
 		        : Parent(*adaptor._digraph) {}
-		      NodeMap(const Adaptor& adaptor, const _Value& value)
+		      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 _Value>
+		    template <typename V>
 		    class ArcMap
-		      : public SubMapExtender<Adaptor, ArcMapBase<_Value> >
+		      : public SubMapExtender<UndirectorBase<DGR>, ArcMapBase<V> >
+		    {
 		    public:
 		      typedef _Value Value;
 		      typedef SubMapExtender<Adaptor, ArcMapBase<Value> > Parent;
 		      explicit ArcMap(const Adaptor& adaptor)
 		      typedef V Value;
 		      typedef SubMapExtender<Adaptor, ArcMapBase<V> > Parent;
 		      explicit ArcMap(const UndirectorBase<DGR>& adaptor)
 		        : Parent(adaptor) {}
-		      ArcMap(const Adaptor& adaptor, const Value& value)
+		      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 _Value>
 		    class EdgeMap : public Digraph::template ArcMap<_Value> {
 		    template <typename V>
 		    class EdgeMap : public Digraph::template ArcMap<V> {
 		    public:
 		      typedef _Value Value;
 		      typedef typename Digraph::template ArcMap<Value> Parent;
 		      explicit EdgeMap(const Adaptor& adaptor)
 		      typedef V Value;
 		      typedef typename Digraph::template ArcMap<V> Parent;
 		      explicit EdgeMap(const UndirectorBase<DGR>& adaptor)
 		        : Parent(*adaptor._digraph) {}
-		      EdgeMap(const Adaptor& adaptor, const Value& value)
+		      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<Digraph, Node>::ItemNotifier NodeNotifier;
+		    typedef typename ItemSetTraits<DGR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const { return _digraph->notifier(Node()); }
-		    typedef typename ItemSetTraits<Digraph, Edge>::ItemNotifier EdgeNotifier;
+		    typedef typename ItemSetTraits<DGR, Edge>::ItemNotifier EdgeNotifier;
 		    EdgeNotifier& notifier(Edge) const { return _digraph->notifier(Edge()); }
 		  protected:
 		    UndirectorBase() : _digraph(0) {}
 		    Digraph* _digraph;
-		    void setDigraph(Digraph& digraph) {
+		    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 GR The type of the adapted digraph.
+		  /// \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 GR>
+		  template<typename DGR>
 		#ifdef DOXYGEN
 		  class Undirector {
 		#else
 		  class Undirector :
-		    public GraphAdaptorExtender<UndirectorBase<GR> > {
+		    public GraphAdaptorExtender<UndirectorBase<DGR> > {
 		#endif
 		  public:
 		    /// The type of the adapted digraph.
 		    typedef GR Digraph;
 		    typedef GraphAdaptorExtender<UndirectorBase<GR> > Parent;
 		    typedef DGR Digraph;
 		    typedef GraphAdaptorExtender<UndirectorBase<DGR> > Parent;
 		  protected:
 		    Undirector() { }
 		  public:
 		    /// \brief Constructor
 		    ///
 		    /// Creates an undirected graph from the given digraph.
 		    Undirector(Digraph& digraph) {
 		      setDigraph(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 %ForwardMap).
 		    template <typename ForwardMap, typename BackwardMap>
 		    class CombinedArcMap {
 		    public:
 		      /// The key type of the map
 		      typedef typename Parent::Arc Key;
 		      /// The value type of the map
 		      typedef typename ForwardMap::Value Value;
 		      typedef typename MapTraits<ForwardMap>::ReferenceMapTag ReferenceMapTag;
 		      typedef typename MapTraits<ForwardMap>::ReturnValue ReturnValue;
 		      typedef typename MapTraits<ForwardMap>::ConstReturnValue ConstReturnValue;
 		      typedef typename MapTraits<ForwardMap>::ReturnValue Reference;
 		      typedef typename MapTraits<ForwardMap>::ConstReturnValue ConstReference;
 		      /// Constructor
 		      CombinedArcMap(ForwardMap& forward, BackwardMap& 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) {
@@ -2310,626 +2301,622 @@
 		          return (*_backward)[e];
+		        }
+		      }
 		    protected:
 		      ForwardMap* _forward;
 		      BackwardMap* _backward;
 		    };
 		    /// \brief Returns a combined arc map
 		    ///
 		    /// This function just returns a combined arc map.
 		    template <typename ForwardMap, typename BackwardMap>
 		    static CombinedArcMap<ForwardMap, BackwardMap>
 		    combinedArcMap(ForwardMap& forward, BackwardMap& backward) {
 		      return CombinedArcMap<ForwardMap, BackwardMap>(forward, backward);
+		    }
 		    template <typename ForwardMap, typename BackwardMap>
 		    static CombinedArcMap<const ForwardMap, BackwardMap>
 		    combinedArcMap(const ForwardMap& forward, BackwardMap& backward) {
 		      return CombinedArcMap<const ForwardMap,
 		        BackwardMap>(forward, backward);
+		    }
 		    template <typename ForwardMap, typename BackwardMap>
 		    static CombinedArcMap<ForwardMap, const BackwardMap>
 		    combinedArcMap(ForwardMap& forward, const BackwardMap& backward) {
 		      return CombinedArcMap<ForwardMap,
 		        const BackwardMap>(forward, backward);
+		    }
 		    template <typename ForwardMap, typename BackwardMap>
 		    static CombinedArcMap<const ForwardMap, const BackwardMap>
 		    combinedArcMap(const ForwardMap& forward, const BackwardMap& backward) {
 		      return CombinedArcMap<const ForwardMap,
 		        const BackwardMap>(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 GR>
 		  Undirector<const GR> undirector(const GR& digraph) {
-		    return Undirector<const GR>(digraph);
+		  template<typename DGR>
 		  Undirector<const DGR> undirector(const DGR& digraph) {
 		    return Undirector<const DGR>(digraph);
+		  }
-		  template <typename _Graph, typename _DirectionMap>
+		  template <typename GR, typename DM>
 		  class OrienterBase {
 		  public:
 		    typedef _Graph Graph;
 		    typedef _DirectionMap DirectionMap;
 		    typedef typename Graph::Node Node;
-		    typedef typename Graph::Edge Arc;
+		    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<Graph, Node>::ItemNotifier NodeNotifier;
+		    typedef typename ItemSetTraits<GR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const { return _graph->notifier(Node()); }
-		    typedef typename ItemSetTraits<Graph, Arc>::ItemNotifier ArcNotifier;
+		    typedef typename ItemSetTraits<GR, Arc>::ItemNotifier ArcNotifier;
 		    ArcNotifier& notifier(Arc) const { return _graph->notifier(Arc()); }
 		    template <typename _Value>
 		    class NodeMap : public _Graph::template NodeMap<_Value> {
 		    template <typename V>
 		    class NodeMap : public GR::template NodeMap<V> {
 		    public:
 		      typedef typename _Graph::template NodeMap<_Value> Parent;
-		      explicit NodeMap(const OrienterBase& adapter)
+		      typedef typename GR::template NodeMap<V> Parent;
 		      explicit NodeMap(const OrienterBase<GR, DM>& adapter)
 		        : Parent(*adapter._graph) {}
-		      NodeMap(const OrienterBase& adapter, const _Value& value)
+		      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 _Value>
 		    class ArcMap : public _Graph::template EdgeMap<_Value> {
 		    template <typename V>
 		    class ArcMap : public GR::template EdgeMap<V> {
 		    public:
 		      typedef typename Graph::template EdgeMap<_Value> Parent;
-		      explicit ArcMap(const OrienterBase& adapter)
+		      typedef typename Graph::template EdgeMap<V> Parent;
 		      explicit ArcMap(const OrienterBase<GR, DM>& adapter)
 		        : Parent(*adapter._graph) { }
-		      ArcMap(const OrienterBase& adapter, const _Value& value)
+		      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;
 		    DirectionMap* _direction;
-		    void setDirectionMap(DirectionMap& direction) {
+		    DM* _direction;
 		    void initialize(GR& graph, DM& direction) {
 		      _graph = &graph;
 		      _direction = &direction;
+		    }
 		    void setGraph(Graph& graph) {
 		      _graph = &graph;
+		    }
 		  };
 		  /// \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
 		  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(Graph& graph, DirectionMap& direction) {
 		      setGraph(graph);
-		      setDirectionMap(direction);
+		    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_map) {
 		    return Orienter<const GR, DM>(graph, direction_map);
 		  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_map) {
 		    return Orienter<const GR, const DM>(graph, direction_map);
 		  orienter(const GR& graph, const DM& direction) {
 		    return Orienter<const GR, const DM>(graph, direction);
+		  }
 		  namespace _adaptor_bits {
 		    template<typename Digraph,
 		             typename CapacityMap,
 		             typename FlowMap,
 		             typename Tolerance>
 		    template <typename DGR, typename CM, typename FM, typename TL>
 		    class ResForwardFilter {
 		    public:
-		      typedef typename Digraph::Arc Key;
+		      typedef typename DGR::Arc Key;
 		      typedef bool Value;
 		    private:
 		      const CapacityMap* _capacity;
 		      const FlowMap* _flow;
-		      Tolerance _tolerance;
+		      const CM* _capacity;
 		      const FM* _flow;
 		      TL _tolerance;
 		    public:
 		      ResForwardFilter(const CapacityMap& capacity, const FlowMap& flow,
 		                       const Tolerance& tolerance = Tolerance())
 		      ResForwardFilter(const CM& capacity, const FM& flow,
 		                       const TL& tolerance = TL())
 		        : _capacity(&capacity), _flow(&flow), _tolerance(tolerance) { }
-		      bool operator[](const typename Digraph::Arc& a) const {
+		      bool operator[](const typename DGR::Arc& a) const {
 		        return _tolerance.positive((*_capacity)[a] - (*_flow)[a]);
+		      }
 		    };
 		    template<typename Digraph,
 		             typename CapacityMap,
 		             typename FlowMap,
 		             typename Tolerance>
 		    template<typename DGR,typename CM, typename FM, typename TL>
 		    class ResBackwardFilter {
 		    public:
-		      typedef typename Digraph::Arc Key;
+		      typedef typename DGR::Arc Key;
 		      typedef bool Value;
 		    private:
 		      const CapacityMap* _capacity;
 		      const FlowMap* _flow;
-		      Tolerance _tolerance;
+		      const CM* _capacity;
 		      const FM* _flow;
 		      TL _tolerance;
 		    public:
 		      ResBackwardFilter(const CapacityMap& capacity, const FlowMap& flow,
 		                        const Tolerance& tolerance = Tolerance())
 		      ResBackwardFilter(const CM& capacity, const FM& flow,
 		                        const TL& tolerance = TL())
 		        : _capacity(&capacity), _flow(&flow), _tolerance(tolerance) { }
-		      bool operator[](const typename Digraph::Arc& a) const {
+		      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 GR The type of the adapted digraph.
+		  /// \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 GR, typename CM, typename FM, typename TL>
+		  template<typename DGR, typename CM, typename FM, typename TL>
 		  class ResidualDigraph
 		#else
 		  template<typename GR,
 		           typename CM = typename GR::template ArcMap<int>,
 		  template<typename DGR,
 		           typename CM = typename DGR::template ArcMap<int>,
 		           typename FM = CM,
 		           typename TL = Tolerance<typename CM::Value> >
 		  class ResidualDigraph :
 		    public FilterArcs<
 		      Undirector<const GR>,
 		      typename Undirector<const GR>::template CombinedArcMap<
 		        _adaptor_bits::ResForwardFilter<const GR, CM, FM, TL>,
 		        _adaptor_bits::ResBackwardFilter<const GR, CM, FM, TL> > >
 		  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 GR 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 _adaptor_bits::ResForwardFilter<const Digraph, CapacityMap,
 		                                            FlowMap, Tolerance> ForwardFilter;
 		    typedef _adaptor_bits::ResBackwardFilter<const Digraph, CapacityMap,
-		                                             FlowMap, Tolerance> BackwardFilter;
+		    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 FilterArcs<Undirected, ArcFilter> Parent;
+		    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 Digraph& digraph, const CapacityMap& capacity,
 		                    FlowMap& flow, const Tolerance& tolerance = Tolerance())
-		      : Parent(), _capacity(&capacity), _flow(&flow), _graph(digraph),
+		    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::setDigraph(_graph);
 		      Parent::setArcFilterMap(_arc_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 Adaptor& adaptor) : _adaptor(&adaptor) {}
+		      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 Residual adaptor.
+		  /// This function just returns a (read-only) \ref ResidualDigraph adaptor.
 		  /// \ingroup graph_adaptors
 		  /// \relates Residual
 		  template<typename GR, typename CM, typename FM>
 		  ResidualDigraph<GR, CM, FM>
 		  residualDigraph(const GR& digraph, const CM& capacity_map, FM& flow_map) {
-		    return ResidualDigraph<GR, CM, FM> (digraph, capacity_map, flow_map);
+		  /// \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 _Digraph>
+		  template <typename DGR>
 		  class SplitNodesBase {
 		  public:
 		    typedef _Digraph Digraph;
 		    typedef DigraphAdaptorBase<const _Digraph> Parent;
 		    typedef DGR Digraph;
 		    typedef DigraphAdaptorBase<const DGR> Parent;
 		    typedef SplitNodesBase Adaptor;
 		    typedef typename Digraph::Node DigraphNode;
 		    typedef typename Digraph::Arc DigraphArc;
 		    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) {}
@@ -3103,503 +3090,505 @@
 		    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 _Value>
+		    template <typename V>
 		    class NodeMapBase
 		      : public MapTraits<typename Parent::template NodeMap<_Value> > {
 		      typedef typename Parent::template NodeMap<_Value> NodeImpl;
 		      : public MapTraits<typename Parent::template NodeMap<V> > {
 		      typedef typename Parent::template NodeMap<V> NodeImpl;
 		    public:
 		      typedef Node Key;
-		      typedef _Value Value;
+		      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 Adaptor& adaptor)
+		      NodeMapBase(const SplitNodesBase<DGR>& adaptor)
 		        : _in_map(*adaptor._digraph), _out_map(*adaptor._digraph) {}
-		      NodeMapBase(const Adaptor& adaptor, const Value& value)
+		      NodeMapBase(const SplitNodesBase<DGR>& adaptor, const V& value)
 		        : _in_map(*adaptor._digraph, value),
 		          _out_map(*adaptor._digraph, value) {}
 		      void set(const Node& key, const Value& val) {
 		        if (Adaptor::inNode(key)) { _in_map.set(key, val); }
 		      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 (Adaptor::inNode(key)) { return _in_map[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 _Value>
+		    template <typename V>
 		    class ArcMapBase
 		      : public MapTraits<typename Parent::template ArcMap<_Value> > {
 		      typedef typename Parent::template ArcMap<_Value> ArcImpl;
-		      typedef typename Parent::template NodeMap<_Value> NodeImpl;
+		      : 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 _Value Value;
+		      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 Adaptor& adaptor)
+		      ArcMapBase(const SplitNodesBase<DGR>& adaptor)
 		        : _arc_map(*adaptor._digraph), _node_map(*adaptor._digraph) {}
-		      ArcMapBase(const Adaptor& adaptor, const Value& value)
+		      ArcMapBase(const SplitNodesBase<DGR>& adaptor, const V& value)
 		        : _arc_map(*adaptor._digraph, value),
 		          _node_map(*adaptor._digraph, value) {}
 		      void set(const Arc& key, const Value& val) {
 		        if (Adaptor::origArc(key)) {
 		      void set(const Arc& key, const V& val) {
 		        if (SplitNodesBase<DGR>::origArc(key)) {
 		          _arc_map.set(key._item.first(), val);
 		        } else {
 		          _node_map.set(key._item.second(), val);
+		        }
+		      }
 		      ReturnValue operator[](const Arc& key) {
-		        if (Adaptor::origArc(key)) {
+		        if (SplitNodesBase<DGR>::origArc(key)) {
 		          return _arc_map[key._item.first()];
 		        } else {
 		          return _node_map[key._item.second()];
+		        }
+		      }
 		      ConstReturnValue operator[](const Arc& key) const {
-		        if (Adaptor::origArc(key)) {
+		        if (SplitNodesBase<DGR>::origArc(key)) {
 		          return _arc_map[key._item.first()];
 		        } else {
 		          return _node_map[key._item.second()];
+		        }
+		      }
 		    private:
 		      ArcImpl _arc_map;
 		      NodeImpl _node_map;
 		    };
 		  public:
-		    template <typename _Value>
+		    template <typename V>
 		    class NodeMap
-		      : public SubMapExtender<Adaptor, NodeMapBase<_Value> >
+		      : public SubMapExtender<SplitNodesBase<DGR>, NodeMapBase<V> >
+		    {
 		    public:
 		      typedef _Value Value;
 		      typedef SubMapExtender<Adaptor, NodeMapBase<Value> > Parent;
 		      NodeMap(const Adaptor& adaptor)
 		      typedef V Value;
 		      typedef SubMapExtender<SplitNodesBase<DGR>, NodeMapBase<Value> > Parent;
 		      NodeMap(const SplitNodesBase<DGR>& adaptor)
 		        : Parent(adaptor) {}
-		      NodeMap(const Adaptor& adaptor, const Value& value)
+		      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 _Value>
+		    template <typename V>
 		    class ArcMap
-		      : public SubMapExtender<Adaptor, ArcMapBase<_Value> >
+		      : public SubMapExtender<SplitNodesBase<DGR>, ArcMapBase<V> >
+		    {
 		    public:
 		      typedef _Value Value;
 		      typedef SubMapExtender<Adaptor, ArcMapBase<Value> > Parent;
 		      ArcMap(const Adaptor& adaptor)
 		      typedef V Value;
 		      typedef SubMapExtender<SplitNodesBase<DGR>, ArcMapBase<Value> > Parent;
 		      ArcMap(const SplitNodesBase<DGR>& adaptor)
 		        : Parent(adaptor) {}
-		      ArcMap(const Adaptor& adaptor, const Value& value)
+		      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) {}
 		    Digraph* _digraph;
-		    void setDigraph(Digraph& digraph) {
+		    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 GR The type of the adapted digraph.
+		  /// \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 GR>
+		  template <typename DGR>
 		#ifdef DOXYGEN
 		  class SplitNodes {
 		#else
 		  class SplitNodes
-		    : public DigraphAdaptorExtender<SplitNodesBase<const GR> > {
+		    : public DigraphAdaptorExtender<SplitNodesBase<const DGR> > {
 		#endif
 		  public:
 		    typedef GR Digraph;
 		    typedef DigraphAdaptorExtender<SplitNodesBase<const GR> > Parent;
 		    typedef typename Digraph::Node DigraphNode;
-		    typedef typename Digraph::Arc DigraphArc;
+		    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 Digraph& g) {
 		      Parent::setDigraph(g);
 		    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 InNodeMap).
 		    template <typename InNodeMap, typename OutNodeMap>
 		    class CombinedNodeMap {
 		    public:
 		      /// The key type of the map
 		      typedef Node Key;
 		      /// The value type of the map
 		      typedef typename InNodeMap::Value Value;
 		      typedef typename MapTraits<InNodeMap>::ReferenceMapTag ReferenceMapTag;
 		      typedef typename MapTraits<InNodeMap>::ReturnValue ReturnValue;
 		      typedef typename MapTraits<InNodeMap>::ConstReturnValue ConstReturnValue;
 		      typedef typename MapTraits<InNodeMap>::ReturnValue Reference;
 		      typedef typename MapTraits<InNodeMap>::ConstReturnValue ConstReference;
 		      /// Constructor
 		      CombinedNodeMap(InNodeMap& in_map, OutNodeMap& 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 (Parent::inNode(key)) {
+		        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 (Parent::inNode(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 (Parent::inNode(key)) {
+		        if (SplitNodesBase<const DGR>::inNode(key)) {
 		          _in_map.set(key, value);
 		        } else {
 		          _out_map.set(key, value);
+		        }
+		      }
 		    private:
 		      InNodeMap& _in_map;
 		      OutNodeMap& _out_map;
 		    };
 		    /// \brief Returns a combined node map
 		    ///
 		    /// This function just returns a combined node map.
 		    template <typename InNodeMap, typename OutNodeMap>
 		    static CombinedNodeMap<InNodeMap, OutNodeMap>
 		    combinedNodeMap(InNodeMap& in_map, OutNodeMap& out_map) {
 		      return CombinedNodeMap<InNodeMap, OutNodeMap>(in_map, out_map);
+		    }
 		    template <typename InNodeMap, typename OutNodeMap>
 		    static CombinedNodeMap<const InNodeMap, OutNodeMap>
 		    combinedNodeMap(const InNodeMap& in_map, OutNodeMap& out_map) {
 		      return CombinedNodeMap<const InNodeMap, OutNodeMap>(in_map, out_map);
+		    }
 		    template <typename InNodeMap, typename OutNodeMap>
 		    static CombinedNodeMap<InNodeMap, const OutNodeMap>
 		    combinedNodeMap(InNodeMap& in_map, const OutNodeMap& out_map) {
 		      return CombinedNodeMap<InNodeMap, const OutNodeMap>(in_map, out_map);
+		    }
 		    template <typename InNodeMap, typename OutNodeMap>
 		    static CombinedNodeMap<const InNodeMap, const OutNodeMap>
 		    combinedNodeMap(const InNodeMap& in_map, const OutNodeMap& out_map) {
 		      return CombinedNodeMap<const InNodeMap,
 		        const OutNodeMap>(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 ArcMap).
 		    template <typename ArcMap, typename NodeMap>
 		    class CombinedArcMap {
 		    public:
 		      /// The key type of the map
 		      typedef Arc Key;
 		      /// The value type of the map
 		      typedef typename ArcMap::Value Value;
 		      typedef typename MapTraits<ArcMap>::ReferenceMapTag ReferenceMapTag;
 		      typedef typename MapTraits<ArcMap>::ReturnValue ReturnValue;
 		      typedef typename MapTraits<ArcMap>::ConstReturnValue ConstReturnValue;
 		      typedef typename MapTraits<ArcMap>::ReturnValue Reference;
 		      typedef typename MapTraits<ArcMap>::ConstReturnValue ConstReference;
 		      /// Constructor
 		      CombinedArcMap(ArcMap& arc_map, NodeMap& 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 (Parent::origArc(arc)) {
+		        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 (Parent::origArc(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 (Parent::origArc(arc)) {
+		        if (SplitNodesBase<const DGR>::origArc(arc)) {
 		          _arc_map.set(arc, val);
 		        } else {
 		          _node_map.set(arc, val);
+		        }
+		      }
 		    private:
 		      ArcMap& _arc_map;
 		      NodeMap& _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
 		  ///
 		  /// This function just returns a (read-only) \ref SplitNodes adaptor.
 		  /// \ingroup graph_adaptors
 		  /// \relates SplitNodes
 		  template<typename GR>
 		  SplitNodes<GR>
 		  splitNodes(const GR& digraph) {
 		    return SplitNodes<GR>(digraph);
 		  template<typename DGR>
 		  SplitNodes<DGR>
 		  splitNodes(const DGR& digraph) {
 		    return SplitNodes<DGR>(digraph);
+		  }
 		#undef LEMON_SCOPE_FIX
 		} //namespace lemon
 		#endif //LEMON_ADAPTORS_H

lemon/edge_set.h

Show inline comments

 		/* -*- mode: C++; indent-tabs-mode: nil; -*-
+		 *
 		 * This file is a part of LEMON, a generic C++ optimization library.
+		 *
 		 * Copyright (C) 2003-2008
 		 * 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_EDGE_SET_H
 		#define LEMON_EDGE_SET_H
 		#include <lemon/core.h>
 		#include <lemon/bits/edge_set_extender.h>
 		/// \ingroup semi_adaptors
 		/// \file
 		/// \brief ArcSet and EdgeSet classes.
 		///
 		/// Graphs which use another graph's node-set as own.
 		namespace lemon {
-		  template <typename _Graph>
+		  template <typename GR>
 		  class ListArcSetBase {
 		  public:
 		    typedef _Graph Graph;
 		    typedef typename Graph::Node Node;
-		    typedef typename Graph::NodeIt NodeIt;
+		    typedef GR Graph;
 		    typedef typename GR::Node Node;
 		    typedef typename GR::NodeIt NodeIt;
 		  protected:
 		    struct NodeT {
 		      int first_out, first_in;
 		      NodeT() : first_out(-1), first_in(-1) {}
 		    };
-		    typedef typename ItemSetTraits<Graph, Node>::
+		    typedef typename ItemSetTraits<GR, Node>::
 		    template Map<NodeT>::Type NodesImplBase;
-		    NodesImplBase* nodes;
+		    NodesImplBase* _nodes;
 		    struct ArcT {
 		      Node source, target;
 		      int next_out, next_in;
 		      int prev_out, prev_in;
 		      ArcT() : prev_out(-1), prev_in(-1) {}
 		    };
 		    std::vector<ArcT> arcs;
 		    int first_arc;
 		    int first_free_arc;
-		    const Graph* graph;
+		    const GR* _graph;
 		    void initalize(const Graph& _graph, NodesImplBase& _nodes) {
 		      graph = &_graph;
-		      nodes = &_nodes;
+		    void initalize(const GR& graph, NodesImplBase& nodes) {
 		      _graph = &graph;
 		      _nodes = &nodes;
+		    }
 		  public:
 		    class Arc {
-		      friend class ListArcSetBase<Graph>;
+		      friend class ListArcSetBase<GR>;
 		    protected:
 		      Arc(int _id) : id(_id) {}
 		      int id;
 		    public:
 		      Arc() {}
 		      Arc(Invalid) : id(-1) {}
 		      bool operator==(const Arc& arc) const { return id == arc.id; }
 		      bool operator!=(const Arc& arc) const { return id != arc.id; }
 		      bool operator<(const Arc& arc) const { return id < arc.id; }
 		    };
 		    ListArcSetBase() : first_arc(-1), first_free_arc(-1) {}
 		    Arc addArc(const Node& u, const Node& v) {
 		      int n;
 		      if (first_free_arc == -1) {
 		        n = arcs.size();
 		        arcs.push_back(ArcT());
 		      } else {
 		        n = first_free_arc;
 		        first_free_arc = arcs[first_free_arc].next_in;
+		      }
 		      arcs[n].next_in = (*nodes)[v].first_in;
 		      if ((*nodes)[v].first_in != -1) {
-		        arcs[(*nodes)[v].first_in].prev_in = n;
+		      arcs[n].next_in = (*_nodes)[v].first_in;
 		      if ((*_nodes)[v].first_in != -1) {
 		        arcs[(*_nodes)[v].first_in].prev_in = n;
+		      }
 		      (*nodes)[v].first_in = n;
 		      arcs[n].next_out = (*nodes)[u].first_out;
 		      if ((*nodes)[u].first_out != -1) {
 		        arcs[(*nodes)[u].first_out].prev_out = n;
 		      (*_nodes)[v].first_in = n;
 		      arcs[n].next_out = (*_nodes)[u].first_out;
 		      if ((*_nodes)[u].first_out != -1) {
 		        arcs[(*_nodes)[u].first_out].prev_out = n;
+		      }
-		      (*nodes)[u].first_out = n;
+		      (*_nodes)[u].first_out = n;
 		      arcs[n].source = u;
 		      arcs[n].target = v;
 		      return Arc(n);
+		    }
 		    void erase(const Arc& arc) {
 		      int n = arc.id;
 		      if (arcs[n].prev_in != -1) {
 		        arcs[arcs[n].prev_in].next_in = arcs[n].next_in;
 		      } else {
-		        (*nodes)[arcs[n].target].first_in = arcs[n].next_in;
+		        (*_nodes)[arcs[n].target].first_in = arcs[n].next_in;
+		      }
 		      if (arcs[n].next_in != -1) {
 		        arcs[arcs[n].next_in].prev_in = arcs[n].prev_in;
+		      }
 		      if (arcs[n].prev_out != -1) {
 		        arcs[arcs[n].prev_out].next_out = arcs[n].next_out;
 		      } else {
-		        (*nodes)[arcs[n].source].first_out = arcs[n].next_out;
+		        (*_nodes)[arcs[n].source].first_out = arcs[n].next_out;
+		      }
 		      if (arcs[n].next_out != -1) {
 		        arcs[arcs[n].next_out].prev_out = arcs[n].prev_out;
+		      }
+		    }
 		    void clear() {
 		      Node node;
 		      for (first(node); node != INVALID; next(node)) {
 		        (*nodes)[node].first_in = -1;
 		        (*nodes)[node].first_out = -1;
 		        (*_nodes)[node].first_in = -1;
 		        (*_nodes)[node].first_out = -1;
+		      }
 		      arcs.clear();
 		      first_arc = -1;
 		      first_free_arc = -1;
+		    }
 		    void first(Node& node) const {
-		      graph->first(node);
+		      _graph->first(node);
+		    }
 		    void next(Node& node) const {
-		      graph->next(node);
+		      _graph->next(node);
+		    }
 		    void first(Arc& arc) const {
 		      Node node;
 		      first(node);
-		      while (node != INVALID && (*nodes)[node].first_in == -1) {
+		      while (node != INVALID && (*_nodes)[node].first_in == -1) {
 		        next(node);
+		      }
-		      arc.id = (node == INVALID) ? -1 : (*nodes)[node].first_in;
+		      arc.id = (node == INVALID) ? -1 : (*_nodes)[node].first_in;
+		    }
 		    void next(Arc& arc) const {
 		      if (arcs[arc.id].next_in != -1) {
 		        arc.id = arcs[arc.id].next_in;
 		      } else {
 		        Node node = arcs[arc.id].target;
 		        next(node);
-		        while (node != INVALID && (*nodes)[node].first_in == -1) {
+		        while (node != INVALID && (*_nodes)[node].first_in == -1) {
 		          next(node);
+		        }
-		        arc.id = (node == INVALID) ? -1 : (*nodes)[node].first_in;
+		        arc.id = (node == INVALID) ? -1 : (*_nodes)[node].first_in;
+		      }
+		    }
 		    void firstOut(Arc& arc, const Node& node) const {
-		      arc.id = (*nodes)[node].first_out;
+		      arc.id = (*_nodes)[node].first_out;
+		    }
 		    void nextOut(Arc& arc) const {
 		      arc.id = arcs[arc.id].next_out;
+		    }
 		    void firstIn(Arc& arc, const Node& node) const {
-		      arc.id = (*nodes)[node].first_in;
+		      arc.id = (*_nodes)[node].first_in;
+		    }
 		    void nextIn(Arc& arc) const {
 		      arc.id = arcs[arc.id].next_in;
+		    }
-		    int id(const Node& node) const { return graph->id(node); }
+		    int id(const Node& node) const { return _graph->id(node); }
 		    int id(const Arc& arc) const { return arc.id; }
-		    Node nodeFromId(int ix) const { return graph->nodeFromId(ix); }
+		    Node nodeFromId(int ix) const { return _graph->nodeFromId(ix); }
 		    Arc arcFromId(int ix) const { return Arc(ix); }
-		    int maxNodeId() const { return graph->maxNodeId(); };
+		    int maxNodeId() const { return _graph->maxNodeId(); };
 		    int maxArcId() const { return arcs.size() - 1; }
 		    Node source(const Arc& arc) const { return arcs[arc.id].source;}
 		    Node target(const Arc& arc) const { return arcs[arc.id].target;}
-		    typedef typename ItemSetTraits<Graph, Node>::ItemNotifier NodeNotifier;
+		    typedef typename ItemSetTraits<GR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const {
-		      return graph->notifier(Node());
+		      return _graph->notifier(Node());
+		    }
 		    template <typename _Value>
 		    class NodeMap : public Graph::template NodeMap<_Value> {
 		    template <typename V>
 		    class NodeMap : public GR::template NodeMap<V> {
 		    public:
-		      typedef typename _Graph::template NodeMap<_Value> Parent;
+		      typedef typename GR::template NodeMap<V> Parent;
 		      explicit NodeMap(const ListArcSetBase<Graph>& arcset)
 		        : Parent(*arcset.graph) {}
 		      explicit NodeMap(const ListArcSetBase<GR>& arcset)
 		        : Parent(*arcset._graph) {}
 		      NodeMap(const ListArcSetBase<Graph>& arcset, const _Value& value)
 		        : Parent(*arcset.graph, value) {}
 		      NodeMap(const ListArcSetBase<GR>& arcset, const V& value)
 		        : Parent(*arcset._graph, value) {}
 		      NodeMap& operator=(const NodeMap& cmap) {
 		        return operator=<NodeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  };
 		  /// \ingroup semi_adaptors
 		  ///
 		  /// \brief Digraph using a node set of another digraph or graph and
 		  /// an own arc set.
 		  ///
 		  /// This structure can be used to establish another directed graph
 		  /// over a node set of an existing one. This class uses the same
 		  /// Node type as the underlying graph, and each valid node of the
 		  /// original graph is valid in this arc set, therefore the node
 		  /// objects of the original graph can be used directly with this
 		  /// class. The node handling functions (id handling, observing, and
 		  /// iterators) works equivalently as in the original graph.
 		  ///
 		  /// This implementation is based on doubly-linked lists, from each
 		  /// node the outgoing and the incoming arcs make up lists, therefore
 		  /// one arc can be erased in constant time. It also makes possible,
 		  /// that node can be removed from the underlying graph, in this case
 		  /// all arcs incident to the given node is erased from the arc set.
 		  ///
-		  /// \param _Graph The type of the graph which shares its node set with
+		  /// \param GR The type of the graph which shares its node set with
 		  /// this class. Its interface must conform to the
 		  /// \ref concepts::Digraph "Digraph" or \ref concepts::Graph "Graph"
 		  /// concept.
 		  ///
 		  /// This class is fully conform to the \ref concepts::Digraph
 		  /// "Digraph" concept.
 		  template <typename _Graph>
 		  class ListArcSet : public ArcSetExtender<ListArcSetBase<_Graph> > {
 		  template <typename GR>
 		  class ListArcSet : public ArcSetExtender<ListArcSetBase<GR> > {
 		  public:
-		    typedef ArcSetExtender<ListArcSetBase<_Graph> > Parent;
+		    typedef ArcSetExtender<ListArcSetBase<GR> > Parent;
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
-		    typedef _Graph Graph;
+		    typedef GR Graph;
 		    typedef typename Parent::NodesImplBase NodesImplBase;
 		    void eraseNode(const Node& node) {
 		      Arc arc;
 		      Parent::firstOut(arc, node);
 		      while (arc != INVALID ) {
 		        erase(arc);
 		        Parent::firstOut(arc, node);
+		      }
 		      Parent::firstIn(arc, node);
 		      while (arc != INVALID ) {
 		        erase(arc);
 		        Parent::firstIn(arc, node);
+		      }
+		    }
 		    void clearNodes() {
 		      Parent::clear();
+		    }
 		    class NodesImpl : public NodesImplBase {
 		    public:
 		      typedef NodesImplBase Parent;
-		      NodesImpl(const Graph& graph, ListArcSet& arcset)
+		      NodesImpl(const GR& graph, ListArcSet& arcset)
 		        : Parent(graph), _arcset(arcset) {}
 		      virtual ~NodesImpl() {}
 		    protected:
 		      virtual void erase(const Node& node) {
 		        _arcset.eraseNode(node);
 		        Parent::erase(node);
+		      }
 		      virtual void erase(const std::vector<Node>& nodes) {
 		        for (int i = 0; i < int(nodes.size()); ++i) {
 		          _arcset.eraseNode(nodes[i]);
+		        }
 		        Parent::erase(nodes);
+		      }
 		      virtual void clear() {
 		        _arcset.clearNodes();
 		        Parent::clear();
+		      }
 		    private:
 		      ListArcSet& _arcset;
 		    };
-		    NodesImpl nodes;
+		    NodesImpl _nodes;
 		  public:
 		    /// \brief Constructor of the ArcSet.
 		    ///
 		    /// Constructor of the ArcSet.
 		    ListArcSet(const Graph& graph) : nodes(graph, *this) {
 		      Parent::initalize(graph, nodes);
 		    ListArcSet(const GR& graph) : _nodes(graph, *this) {
 		      Parent::initalize(graph, _nodes);
+		    }
 		    /// \brief Add a new arc to the digraph.
 		    ///
 		    /// Add a new arc to the digraph with source node \c s
 		    /// and target node \c t.
 		    /// \return the new arc.
 		    Arc addArc(const Node& s, const Node& t) {
 		      return Parent::addArc(s, t);
+		    }
 		    /// \brief Erase an arc from the digraph.
 		    ///
 		    /// Erase an arc \c a from the digraph.
 		    void erase(const Arc& a) {
 		      return Parent::erase(a);
+		    }
 		  };
-		  template <typename _Graph>
+		  template <typename GR>
 		  class ListEdgeSetBase {
 		  public:
 		    typedef _Graph Graph;
 		    typedef typename Graph::Node Node;
-		    typedef typename Graph::NodeIt NodeIt;
+		    typedef GR Graph;
 		    typedef typename GR::Node Node;
 		    typedef typename GR::NodeIt NodeIt;
 		  protected:
 		    struct NodeT {
 		      int first_out;
 		      NodeT() : first_out(-1) {}
 		    };
-		    typedef typename ItemSetTraits<Graph, Node>::
+		    typedef typename ItemSetTraits<GR, Node>::
 		    template Map<NodeT>::Type NodesImplBase;
-		    NodesImplBase* nodes;
+		    NodesImplBase* _nodes;
 		    struct ArcT {
 		      Node target;
 		      int prev_out, next_out;
 		      ArcT() : prev_out(-1), next_out(-1) {}
 		    };
 		    std::vector<ArcT> arcs;
 		    int first_arc;
 		    int first_free_arc;
-		    const Graph* graph;
+		    const GR* _graph;
 		    void initalize(const Graph& _graph, NodesImplBase& _nodes) {
 		      graph = &_graph;
-		      nodes = &_nodes;
+		    void initalize(const GR& graph, NodesImplBase& nodes) {
 		      _graph = &graph;
 		      _nodes = &nodes;
+		    }
 		  public:
 		    class Edge {
 		      friend class ListEdgeSetBase;
 		    protected:
 		      int id;
 		      explicit Edge(int _id) { id = _id;}
 		    public:
 		      Edge() {}
 		      Edge (Invalid) { id = -1; }
 		      bool operator==(const Edge& arc) const {return id == arc.id;}
 		      bool operator!=(const Edge& arc) const {return id != arc.id;}
 		      bool operator<(const Edge& arc) const {return id < arc.id;}
 		    };
 		    class Arc {
 		      friend class ListEdgeSetBase;
 		    protected:
 		      Arc(int _id) : id(_id) {}
 		      int id;
 		    public:
 		      operator Edge() const { return edgeFromId(id / 2); }
 		      Arc() {}
 		      Arc(Invalid) : id(-1) {}
 		      bool operator==(const Arc& arc) const { return id == arc.id; }
 		      bool operator!=(const Arc& arc) const { return id != arc.id; }
 		      bool operator<(const Arc& arc) const { return id < arc.id; }
 		    };
 		    ListEdgeSetBase() : first_arc(-1), first_free_arc(-1) {}
 		    Edge addEdge(const Node& u, const Node& v) {
 		      int n;
 		      if (first_free_arc == -1) {
 		        n = arcs.size();
 		        arcs.push_back(ArcT());
 		        arcs.push_back(ArcT());
 		      } else {
 		        n = first_free_arc;
 		        first_free_arc = arcs[n].next_out;
+		      }
 		      arcs[n].target = u;
 		      arcs[n | 1].target = v;
 		      arcs[n].next_out = (*nodes)[v].first_out;
 		      if ((*nodes)[v].first_out != -1) {
-		        arcs[(*nodes)[v].first_out].prev_out = n;
+		      arcs[n].next_out = (*_nodes)[v].first_out;
 		      if ((*_nodes)[v].first_out != -1) {
 		        arcs[(*_nodes)[v].first_out].prev_out = n;
+		      }
-		      (*nodes)[v].first_out = n;
+		      (*_nodes)[v].first_out = n;
 		      arcs[n].prev_out = -1;
 		      if ((*nodes)[u].first_out != -1) {
 		        arcs[(*nodes)[u].first_out].prev_out = (n | 1);
 		      if ((*_nodes)[u].first_out != -1) {
 		        arcs[(*_nodes)[u].first_out].prev_out = (n | 1);
+		      }
 		      arcs[n | 1].next_out = (*nodes)[u].first_out;
 		      (*nodes)[u].first_out = (n | 1);
 		      arcs[n | 1].next_out = (*_nodes)[u].first_out;
 		      (*_nodes)[u].first_out = (n | 1);
 		      arcs[n | 1].prev_out = -1;
 		      return Edge(n / 2);
+		    }
 		    void erase(const Edge& arc) {
 		      int n = arc.id * 2;
 		      if (arcs[n].next_out != -1) {
 		        arcs[arcs[n].next_out].prev_out = arcs[n].prev_out;
+		      }
 		      if (arcs[n].prev_out != -1) {
 		        arcs[arcs[n].prev_out].next_out = arcs[n].next_out;
 		      } else {
-		        (*nodes)[arcs[n | 1].target].first_out = arcs[n].next_out;
+		        (*_nodes)[arcs[n | 1].target].first_out = arcs[n].next_out;
+		      }
 		      if (arcs[n | 1].next_out != -1) {
 		        arcs[arcs[n | 1].next_out].prev_out = arcs[n | 1].prev_out;
+		      }
 		      if (arcs[n | 1].prev_out != -1) {
 		        arcs[arcs[n | 1].prev_out].next_out = arcs[n | 1].next_out;
 		      } else {
-		        (*nodes)[arcs[n].target].first_out = arcs[n | 1].next_out;
+		        (*_nodes)[arcs[n].target].first_out = arcs[n | 1].next_out;
+		      }
 		      arcs[n].next_out = first_free_arc;
 		      first_free_arc = n;
+		    }
 		    void clear() {
 		      Node node;
 		      for (first(node); node != INVALID; next(node)) {
-		        (*nodes)[node].first_out = -1;
+		        (*_nodes)[node].first_out = -1;
+		      }
 		      arcs.clear();
 		      first_arc = -1;
 		      first_free_arc = -1;
+		    }
 		    void first(Node& node) const {
-		      graph->first(node);
+		      _graph->first(node);
+		    }
 		    void next(Node& node) const {
-		      graph->next(node);
+		      _graph->next(node);
+		    }
 		    void first(Arc& arc) const {
 		      Node node;
 		      first(node);
-		      while (node != INVALID && (*nodes)[node].first_out == -1) {
+		      while (node != INVALID && (*_nodes)[node].first_out == -1) {
 		        next(node);
+		      }
-		      arc.id = (node == INVALID) ? -1 : (*nodes)[node].first_out;
+		      arc.id = (node == INVALID) ? -1 : (*_nodes)[node].first_out;
+		    }
 		    void next(Arc& arc) const {
 		      if (arcs[arc.id].next_out != -1) {
 		        arc.id = arcs[arc.id].next_out;
 		      } else {
 		        Node node = arcs[arc.id ^ 1].target;
 		        next(node);
-		        while(node != INVALID && (*nodes)[node].first_out == -1) {
+		        while(node != INVALID && (*_nodes)[node].first_out == -1) {
 		          next(node);
+		        }
-		        arc.id = (node == INVALID) ? -1 : (*nodes)[node].first_out;
+		        arc.id = (node == INVALID) ? -1 : (*_nodes)[node].first_out;
+		      }
+		    }
 		    void first(Edge& edge) const {
 		      Node node;
 		      first(node);
 		      while (node != INVALID) {
-		        edge.id = (*nodes)[node].first_out;
+		        edge.id = (*_nodes)[node].first_out;
 		        while ((edge.id & 1) != 1) {
 		          edge.id = arcs[edge.id].next_out;
+		        }
 		        if (edge.id != -1) {
 		          edge.id /= 2;
 		          return;
+		        }
 		        next(node);
+		      }
 		      edge.id = -1;
+		    }
 		    void next(Edge& edge) const {
 		      Node node = arcs[edge.id * 2].target;
 		      edge.id = arcs[(edge.id * 2) | 1].next_out;
 		      while ((edge.id & 1) != 1) {
 		        edge.id = arcs[edge.id].next_out;
+		      }
 		      if (edge.id != -1) {
 		        edge.id /= 2;
 		        return;
+		      }
 		      next(node);
 		      while (node != INVALID) {
-		        edge.id = (*nodes)[node].first_out;
+		        edge.id = (*_nodes)[node].first_out;
 		        while ((edge.id & 1) != 1) {
 		          edge.id = arcs[edge.id].next_out;
+		        }
 		        if (edge.id != -1) {
 		          edge.id /= 2;
 		          return;
+		        }
 		        next(node);
+		      }
 		      edge.id = -1;
+		    }
 		    void firstOut(Arc& arc, const Node& node) const {
-		      arc.id = (*nodes)[node].first_out;
+		      arc.id = (*_nodes)[node].first_out;
+		    }
 		    void nextOut(Arc& arc) const {
 		      arc.id = arcs[arc.id].next_out;
+		    }
 		    void firstIn(Arc& arc, const Node& node) const {
-		      arc.id = (((*nodes)[node].first_out) ^ 1);
+		      arc.id = (((*_nodes)[node].first_out) ^ 1);
 		      if (arc.id == -2) arc.id = -1;
+		    }
 		    void nextIn(Arc& arc) const {
 		      arc.id = ((arcs[arc.id ^ 1].next_out) ^ 1);
 		      if (arc.id == -2) arc.id = -1;
+		    }
 		    void firstInc(Edge &arc, bool& dir, const Node& node) const {
-		      int de = (*nodes)[node].first_out;
+		      int de = (*_nodes)[node].first_out;
 		      if (de != -1 ) {
 		        arc.id = de / 2;
 		        dir = ((de & 1) == 1);
 		      } else {
 		        arc.id = -1;
 		        dir = true;
+		      }
+		    }
 		    void nextInc(Edge &arc, bool& dir) const {
 		      int de = (arcs[(arc.id * 2) | (dir ? 1 : 0)].next_out);
 		      if (de != -1 ) {
 		        arc.id = de / 2;
 		        dir = ((de & 1) == 1);
 		      } else {
 		        arc.id = -1;
 		        dir = true;
+		      }
+		    }
 		    static bool direction(Arc arc) {
 		      return (arc.id & 1) == 1;
+		    }
 		    static Arc direct(Edge edge, bool dir) {
 		      return Arc(edge.id * 2 + (dir ? 1 : 0));
+		    }
-		    int id(const Node& node) const { return graph->id(node); }
+		    int id(const Node& node) const { return _graph->id(node); }
 		    static int id(Arc e) { return e.id; }
 		    static int id(Edge e) { return e.id; }
-		    Node nodeFromId(int id) const { return graph->nodeFromId(id); }
+		    Node nodeFromId(int id) const { return _graph->nodeFromId(id); }
 		    static Arc arcFromId(int id) { return Arc(id);}
 		    static Edge edgeFromId(int id) { return Edge(id);}
-		    int maxNodeId() const { return graph->maxNodeId(); };
+		    int maxNodeId() const { return _graph->maxNodeId(); };
 		    int maxEdgeId() const { return arcs.size() / 2 - 1; }
 		    int maxArcId() const { return arcs.size()-1; }
 		    Node source(Arc e) const { return arcs[e.id ^ 1].target; }
 		    Node target(Arc e) const { return arcs[e.id].target; }
 		    Node u(Edge e) const { return arcs[2 * e.id].target; }
 		    Node v(Edge e) const { return arcs[2 * e.id + 1].target; }
-		    typedef typename ItemSetTraits<Graph, Node>::ItemNotifier NodeNotifier;
+		    typedef typename ItemSetTraits<GR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const {
-		      return graph->notifier(Node());
+		      return _graph->notifier(Node());
+		    }
 		    template <typename _Value>
 		    class NodeMap : public Graph::template NodeMap<_Value> {
 		    template <typename V>
 		    class NodeMap : public GR::template NodeMap<V> {
 		    public:
-		      typedef typename _Graph::template NodeMap<_Value> Parent;
+		      typedef typename GR::template NodeMap<V> Parent;
 		      explicit NodeMap(const ListEdgeSetBase<Graph>& arcset)
 		        : Parent(*arcset.graph) {}
 		      explicit NodeMap(const ListEdgeSetBase<GR>& arcset)
 		        : Parent(*arcset._graph) {}
 		      NodeMap(const ListEdgeSetBase<Graph>& arcset, const _Value& value)
 		        : Parent(*arcset.graph, value) {}
 		      NodeMap(const ListEdgeSetBase<GR>& arcset, const V& value)
 		        : Parent(*arcset._graph, value) {}
 		      NodeMap& operator=(const NodeMap& cmap) {
 		        return operator=<NodeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  };
 		  /// \ingroup semi_adaptors
 		  ///
 		  /// \brief Graph using a node set of another digraph or graph and an
 		  /// own edge set.
 		  ///
 		  /// This structure can be used to establish another graph over a
 		  /// node set of an existing one. This class uses the same Node type
 		  /// as the underlying graph, and each valid node of the original
 		  /// graph is valid in this arc set, therefore the node objects of
 		  /// the original graph can be used directly with this class. The
 		  /// node handling functions (id handling, observing, and iterators)
 		  /// works equivalently as in the original graph.
 		  ///
 		  /// This implementation is based on doubly-linked lists, from each
 		  /// node the incident edges make up lists, therefore one edge can be
 		  /// erased in constant time. It also makes possible, that node can
 		  /// be removed from the underlying graph, in this case all edges
 		  /// incident to the given node is erased from the arc set.
 		  ///
-		  /// \param _Graph The type of the graph which shares its node set
+		  /// \param GR The type of the graph which shares its node set
 		  /// with this class. Its interface must conform to the
 		  /// \ref concepts::Digraph "Digraph" or \ref concepts::Graph "Graph"
 		  /// concept.
 		  ///
 		  /// This class is fully conform to the \ref concepts::Graph "Graph"
 		  /// concept.
 		  template <typename _Graph>
 		  class ListEdgeSet : public EdgeSetExtender<ListEdgeSetBase<_Graph> > {
 		  template <typename GR>
 		  class ListEdgeSet : public EdgeSetExtender<ListEdgeSetBase<GR> > {
 		  public:
-		    typedef EdgeSetExtender<ListEdgeSetBase<_Graph> > Parent;
+		    typedef EdgeSetExtender<ListEdgeSetBase<GR> > Parent;
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    typedef typename Parent::Edge Edge;
-		    typedef _Graph Graph;
+		    typedef GR Graph;
 		    typedef typename Parent::NodesImplBase NodesImplBase;
 		    void eraseNode(const Node& node) {
 		      Arc arc;
 		      Parent::firstOut(arc, node);
 		      while (arc != INVALID ) {
 		        erase(arc);
 		        Parent::firstOut(arc, node);
+		      }
+		    }
 		    void clearNodes() {
 		      Parent::clear();
+		    }
 		    class NodesImpl : public NodesImplBase {
 		    public:
 		      typedef NodesImplBase Parent;
-		      NodesImpl(const Graph& graph, ListEdgeSet& arcset)
+		      NodesImpl(const GR& graph, ListEdgeSet& arcset)
 		        : Parent(graph), _arcset(arcset) {}
 		      virtual ~NodesImpl() {}
 		    protected:
 		      virtual void erase(const Node& node) {
 		        _arcset.eraseNode(node);
 		        Parent::erase(node);
+		      }
 		      virtual void erase(const std::vector<Node>& nodes) {
 		        for (int i = 0; i < int(nodes.size()); ++i) {
 		          _arcset.eraseNode(nodes[i]);
+		        }
 		        Parent::erase(nodes);
+		      }
 		      virtual void clear() {
 		        _arcset.clearNodes();
 		        Parent::clear();
+		      }
 		    private:
 		      ListEdgeSet& _arcset;
 		    };
-		    NodesImpl nodes;
+		    NodesImpl _nodes;
 		  public:
 		    /// \brief Constructor of the EdgeSet.
 		    ///
 		    /// Constructor of the EdgeSet.
 		    ListEdgeSet(const Graph& graph) : nodes(graph, *this) {
 		      Parent::initalize(graph, nodes);
 		    ListEdgeSet(const GR& graph) : _nodes(graph, *this) {
 		      Parent::initalize(graph, _nodes);
+		    }
 		    /// \brief Add a new edge to the graph.
 		    ///
 		    /// Add a new edge to the graph with node \c u
 		    /// and node \c v endpoints.
 		    /// \return the new edge.
 		    Edge addEdge(const Node& u, const Node& v) {
 		      return Parent::addEdge(u, v);
+		    }
 		    /// \brief Erase an edge from the graph.
 		    ///
 		    /// Erase the edge \c e from the graph.
 		    void erase(const Edge& e) {
 		      return Parent::erase(e);
+		    }
 		  };
-		  template <typename _Graph>
+		  template <typename GR>
 		  class SmartArcSetBase {
 		  public:
-		    typedef _Graph Graph;
+		    typedef GR Graph;
 		    typedef typename Graph::Node Node;
 		    typedef typename Graph::NodeIt NodeIt;
 		  protected:
 		    struct NodeT {
 		      int first_out, first_in;
 		      NodeT() : first_out(-1), first_in(-1) {}
 		    };
-		    typedef typename ItemSetTraits<Graph, Node>::
+		    typedef typename ItemSetTraits<GR, Node>::
 		    template Map<NodeT>::Type NodesImplBase;
-		    NodesImplBase* nodes;
+		    NodesImplBase* _nodes;
 		    struct ArcT {
 		      Node source, target;
 		      int next_out, next_in;
 		      ArcT() {}
 		    };
 		    std::vector<ArcT> arcs;
-		    const Graph* graph;
+		    const GR* _graph;
 		    void initalize(const Graph& _graph, NodesImplBase& _nodes) {
 		      graph = &_graph;
-		      nodes = &_nodes;
+		    void initalize(const GR& graph, NodesImplBase& nodes) {
 		      _graph = &graph;
 		      _nodes = &nodes;
+		    }
 		  public:
 		    class Arc {
-		      friend class SmartArcSetBase<Graph>;
+		      friend class SmartArcSetBase<GR>;
 		    protected:
 		      Arc(int _id) : id(_id) {}
 		      int id;
 		    public:
 		      Arc() {}
 		      Arc(Invalid) : id(-1) {}
 		      bool operator==(const Arc& arc) const { return id == arc.id; }
 		      bool operator!=(const Arc& arc) const { return id != arc.id; }
 		      bool operator<(const Arc& arc) const { return id < arc.id; }
 		    };
 		    SmartArcSetBase() {}
 		    Arc addArc(const Node& u, const Node& v) {
 		      int n = arcs.size();
 		      arcs.push_back(ArcT());
 		      arcs[n].next_in = (*nodes)[v].first_in;
 		      (*nodes)[v].first_in = n;
 		      arcs[n].next_out = (*nodes)[u].first_out;
 		      (*nodes)[u].first_out = n;
 		      arcs[n].next_in = (*_nodes)[v].first_in;
 		      (*_nodes)[v].first_in = n;
 		      arcs[n].next_out = (*_nodes)[u].first_out;
 		      (*_nodes)[u].first_out = n;
 		      arcs[n].source = u;
 		      arcs[n].target = v;
 		      return Arc(n);
+		    }
 		    void clear() {
 		      Node node;
 		      for (first(node); node != INVALID; next(node)) {
 		        (*nodes)[node].first_in = -1;
 		        (*nodes)[node].first_out = -1;
 		        (*_nodes)[node].first_in = -1;
 		        (*_nodes)[node].first_out = -1;
+		      }
 		      arcs.clear();
+		    }
 		    void first(Node& node) const {
-		      graph->first(node);
+		      _graph->first(node);
+		    }
 		    void next(Node& node) const {
-		      graph->next(node);
+		      _graph->next(node);
+		    }
 		    void first(Arc& arc) const {
 		      arc.id = arcs.size() - 1;
+		    }
 		    void next(Arc& arc) const {
 		      --arc.id;
+		    }
 		    void firstOut(Arc& arc, const Node& node) const {
-		      arc.id = (*nodes)[node].first_out;
+		      arc.id = (*_nodes)[node].first_out;
+		    }
 		    void nextOut(Arc& arc) const {
 		      arc.id = arcs[arc.id].next_out;
+		    }
 		    void firstIn(Arc& arc, const Node& node) const {
-		      arc.id = (*nodes)[node].first_in;
+		      arc.id = (*_nodes)[node].first_in;
+		    }
 		    void nextIn(Arc& arc) const {
 		      arc.id = arcs[arc.id].next_in;
+		    }
-		    int id(const Node& node) const { return graph->id(node); }
+		    int id(const Node& node) const { return _graph->id(node); }
 		    int id(const Arc& arc) const { return arc.id; }
-		    Node nodeFromId(int ix) const { return graph->nodeFromId(ix); }
+		    Node nodeFromId(int ix) const { return _graph->nodeFromId(ix); }
 		    Arc arcFromId(int ix) const { return Arc(ix); }
-		    int maxNodeId() const { return graph->maxNodeId(); };
+		    int maxNodeId() const { return _graph->maxNodeId(); };
 		    int maxArcId() const { return arcs.size() - 1; }
 		    Node source(const Arc& arc) const { return arcs[arc.id].source;}
 		    Node target(const Arc& arc) const { return arcs[arc.id].target;}
-		    typedef typename ItemSetTraits<Graph, Node>::ItemNotifier NodeNotifier;
+		    typedef typename ItemSetTraits<GR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const {
-		      return graph->notifier(Node());
+		      return _graph->notifier(Node());
+		    }
 		    template <typename _Value>
 		    class NodeMap : public Graph::template NodeMap<_Value> {
 		    template <typename V>
 		    class NodeMap : public GR::template NodeMap<V> {
 		    public:
-		      typedef typename _Graph::template NodeMap<_Value> Parent;
+		      typedef typename GR::template NodeMap<V> Parent;
 		      explicit NodeMap(const SmartArcSetBase<Graph>& arcset)
 		        : Parent(*arcset.graph) { }
 		      explicit NodeMap(const SmartArcSetBase<GR>& arcset)
 		        : Parent(*arcset._graph) { }
 		      NodeMap(const SmartArcSetBase<Graph>& arcset, const _Value& value)
 		        : Parent(*arcset.graph, value) { }
 		      NodeMap(const SmartArcSetBase<GR>& arcset, const V& value)
 		        : Parent(*arcset._graph, value) { }
 		      NodeMap& operator=(const NodeMap& cmap) {
 		        return operator=<NodeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  };
 		  /// \ingroup semi_adaptors
 		  ///
 		  /// \brief Digraph using a node set of another digraph or graph and
 		  /// an own arc set.
 		  ///
 		  /// This structure can be used to establish another directed graph
 		  /// over a node set of an existing one. This class uses the same
 		  /// Node type as the underlying graph, and each valid node of the
 		  /// original graph is valid in this arc set, therefore the node
 		  /// objects of the original graph can be used directly with this
 		  /// class. The node handling functions (id handling, observing, and
 		  /// iterators) works equivalently as in the original graph.
 		  ///
-		  /// \param _Graph The type of the graph which shares its node set with
+		  /// \param GR The type of the graph which shares its node set with
 		  /// this class. Its interface must conform to the
 		  /// \ref concepts::Digraph "Digraph" or \ref concepts::Graph "Graph"
 		  /// concept.
 		  ///
 		  /// This implementation is slightly faster than the \c ListArcSet,
 		  /// because it uses continuous storage for arcs and it uses just
 		  /// single-linked lists for enumerate outgoing and incoming
 		  /// arcs. Therefore the arcs cannot be erased from the arc sets.
 		  ///
 		  /// \warning If a node is erased from the underlying graph and this
 		  /// node is the source or target of one arc in the arc set, then
 		  /// the arc set is invalidated, and it cannot be used anymore. The
 		  /// validity can be checked with the \c valid() member function.
 		  ///
 		  /// This class is fully conform to the \ref concepts::Digraph
 		  /// "Digraph" concept.
 		  template <typename _Graph>
 		  class SmartArcSet : public ArcSetExtender<SmartArcSetBase<_Graph> > {
 		  template <typename GR>
 		  class SmartArcSet : public ArcSetExtender<SmartArcSetBase<GR> > {
 		  public:
-		    typedef ArcSetExtender<SmartArcSetBase<_Graph> > Parent;
+		    typedef ArcSetExtender<SmartArcSetBase<GR> > Parent;
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
-		    typedef _Graph Graph;
+		    typedef GR Graph;
 		  protected:
 		    typedef typename Parent::NodesImplBase NodesImplBase;
 		    void eraseNode(const Node& node) {
 		      if (typename Parent::InArcIt(*this, node) == INVALID &&
 		          typename Parent::OutArcIt(*this, node) == INVALID) {
 		        return;
+		      }
 		      throw typename NodesImplBase::Notifier::ImmediateDetach();
+		    }
 		    void clearNodes() {
 		      Parent::clear();
+		    }
 		    class NodesImpl : public NodesImplBase {
 		    public:
 		      typedef NodesImplBase Parent;
-		      NodesImpl(const Graph& graph, SmartArcSet& arcset)
+		      NodesImpl(const GR& graph, SmartArcSet& arcset)
 		        : Parent(graph), _arcset(arcset) {}
 		      virtual ~NodesImpl() {}
 		      bool attached() const {
 		        return Parent::attached();
+		      }
 		    protected:
 		      virtual void erase(const Node& node) {
 		        try {
 		          _arcset.eraseNode(node);
 		          Parent::erase(node);
 		        } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) {
 		          Parent::clear();
 		          throw;
+		        }
+		      }
 		      virtual void erase(const std::vector<Node>& nodes) {
 		        try {
 		          for (int i = 0; i < int(nodes.size()); ++i) {
 		            _arcset.eraseNode(nodes[i]);
+		          }
 		          Parent::erase(nodes);
 		        } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) {
 		          Parent::clear();
 		          throw;
+		        }
+		      }
 		      virtual void clear() {
 		        _arcset.clearNodes();
 		        Parent::clear();
+		      }
 		    private:
 		      SmartArcSet& _arcset;
 		    };
-		    NodesImpl nodes;
+		    NodesImpl _nodes;
 		  public:
 		    /// \brief Constructor of the ArcSet.
 		    ///
 		    /// Constructor of the ArcSet.
 		    SmartArcSet(const Graph& graph) : nodes(graph, *this) {
 		      Parent::initalize(graph, nodes);
 		    SmartArcSet(const GR& graph) : _nodes(graph, *this) {
 		      Parent::initalize(graph, _nodes);
+		    }
 		    /// \brief Add a new arc to the digraph.
 		    ///
 		    /// Add a new arc to the digraph with source node \c s
 		    /// and target node \c t.
 		    /// \return the new arc.
 		    Arc addArc(const Node& s, const Node& t) {
 		      return Parent::addArc(s, t);
+		    }
 		    /// \brief Validity check
 		    ///
 		    /// This functions gives back false if the ArcSet is
 		    /// invalidated. It occurs when a node in the underlying graph is
 		    /// erased and it is not isolated in the ArcSet.
 		    bool valid() const {
-		      return nodes.attached();
+		      return _nodes.attached();
+		    }
 		  };
-		  template <typename _Graph>
+		  template <typename GR>
 		  class SmartEdgeSetBase {
 		  public:
 		    typedef _Graph Graph;
 		    typedef typename Graph::Node Node;
-		    typedef typename Graph::NodeIt NodeIt;
+		    typedef GR Graph;
 		    typedef typename GR::Node Node;
 		    typedef typename GR::NodeIt NodeIt;
 		  protected:
 		    struct NodeT {
 		      int first_out;
 		      NodeT() : first_out(-1) {}
 		    };
-		    typedef typename ItemSetTraits<Graph, Node>::
+		    typedef typename ItemSetTraits<GR, Node>::
 		    template Map<NodeT>::Type NodesImplBase;
-		    NodesImplBase* nodes;
+		    NodesImplBase* _nodes;
 		    struct ArcT {
 		      Node target;
 		      int next_out;
 		      ArcT() {}
 		    };
 		    std::vector<ArcT> arcs;
-		    const Graph* graph;
+		    const GR* _graph;
 		    void initalize(const Graph& _graph, NodesImplBase& _nodes) {
 		      graph = &_graph;
-		      nodes = &_nodes;
+		    void initalize(const GR& graph, NodesImplBase& nodes) {
 		      _graph = &graph;
 		      _nodes = &nodes;
+		    }
 		  public:
 		    class Edge {
 		      friend class SmartEdgeSetBase;
 		    protected:
 		      int id;
 		      explicit Edge(int _id) { id = _id;}
 		    public:
 		      Edge() {}
 		      Edge (Invalid) { id = -1; }
 		      bool operator==(const Edge& arc) const {return id == arc.id;}
 		      bool operator!=(const Edge& arc) const {return id != arc.id;}
 		      bool operator<(const Edge& arc) const {return id < arc.id;}
 		    };
 		    class Arc {
 		      friend class SmartEdgeSetBase;
 		    protected:
 		      Arc(int _id) : id(_id) {}
 		      int id;
 		    public:
 		      operator Edge() const { return edgeFromId(id / 2); }
 		      Arc() {}
 		      Arc(Invalid) : id(-1) {}
 		      bool operator==(const Arc& arc) const { return id == arc.id; }
 		      bool operator!=(const Arc& arc) const { return id != arc.id; }
 		      bool operator<(const Arc& arc) const { return id < arc.id; }
 		    };
 		    SmartEdgeSetBase() {}
 		    Edge addEdge(const Node& u, const Node& v) {
 		      int n = arcs.size();
 		      arcs.push_back(ArcT());
 		      arcs.push_back(ArcT());
 		      arcs[n].target = u;
 		      arcs[n | 1].target = v;
 		      arcs[n].next_out = (*nodes)[v].first_out;
 		      (*nodes)[v].first_out = n;
 		      arcs[n].next_out = (*_nodes)[v].first_out;
 		      (*_nodes)[v].first_out = n;
 		      arcs[n | 1].next_out = (*nodes)[u].first_out;
 		      (*nodes)[u].first_out = (n | 1);
 		      arcs[n | 1].next_out = (*_nodes)[u].first_out;
 		      (*_nodes)[u].first_out = (n | 1);
 		      return Edge(n / 2);
+		    }
 		    void clear() {
 		      Node node;
 		      for (first(node); node != INVALID; next(node)) {
-		        (*nodes)[node].first_out = -1;
+		        (*_nodes)[node].first_out = -1;
+		      }
 		      arcs.clear();
+		    }
 		    void first(Node& node) const {
-		      graph->first(node);
+		      _graph->first(node);
+		    }
 		    void next(Node& node) const {
-		      graph->next(node);
+		      _graph->next(node);
+		    }
 		    void first(Arc& arc) const {
 		      arc.id = arcs.size() - 1;
+		    }
 		    void next(Arc& arc) const {
 		      --arc.id;
+		    }
 		    void first(Edge& arc) const {
 		      arc.id = arcs.size() / 2 - 1;
+		    }
 		    void next(Edge& arc) const {
 		      --arc.id;
+		    }
 		    void firstOut(Arc& arc, const Node& node) const {
-		      arc.id = (*nodes)[node].first_out;
+		      arc.id = (*_nodes)[node].first_out;
+		    }
 		    void nextOut(Arc& arc) const {
 		      arc.id = arcs[arc.id].next_out;
+		    }
 		    void firstIn(Arc& arc, const Node& node) const {
-		      arc.id = (((*nodes)[node].first_out) ^ 1);
+		      arc.id = (((*_nodes)[node].first_out) ^ 1);
 		      if (arc.id == -2) arc.id = -1;
+		    }
 		    void nextIn(Arc& arc) const {
 		      arc.id = ((arcs[arc.id ^ 1].next_out) ^ 1);
 		      if (arc.id == -2) arc.id = -1;
+		    }
 		    void firstInc(Edge &arc, bool& dir, const Node& node) const {
-		      int de = (*nodes)[node].first_out;
+		      int de = (*_nodes)[node].first_out;
 		      if (de != -1 ) {
 		        arc.id = de / 2;
 		        dir = ((de & 1) == 1);
 		      } else {
 		        arc.id = -1;
 		        dir = true;
+		      }
+		    }
 		    void nextInc(Edge &arc, bool& dir) const {
 		      int de = (arcs[(arc.id * 2) | (dir ? 1 : 0)].next_out);
 		      if (de != -1 ) {
 		        arc.id = de / 2;
 		        dir = ((de & 1) == 1);
 		      } else {
 		        arc.id = -1;
 		        dir = true;
+		      }
+		    }
 		    static bool direction(Arc arc) {
 		      return (arc.id & 1) == 1;
+		    }
 		    static Arc direct(Edge edge, bool dir) {
 		      return Arc(edge.id * 2 + (dir ? 1 : 0));
+		    }
-		    int id(Node node) const { return graph->id(node); }
+		    int id(Node node) const { return _graph->id(node); }
 		    static int id(Arc arc) { return arc.id; }
 		    static int id(Edge arc) { return arc.id; }
-		    Node nodeFromId(int id) const { return graph->nodeFromId(id); }
+		    Node nodeFromId(int id) const { return _graph->nodeFromId(id); }
 		    static Arc arcFromId(int id) { return Arc(id); }
 		    static Edge edgeFromId(int id) { return Edge(id);}
-		    int maxNodeId() const { return graph->maxNodeId(); };
+		    int maxNodeId() const { return _graph->maxNodeId(); };
 		    int maxArcId() const { return arcs.size() - 1; }
 		    int maxEdgeId() const { return arcs.size() / 2 - 1; }
 		    Node source(Arc e) const { return arcs[e.id ^ 1].target; }
 		    Node target(Arc e) const { return arcs[e.id].target; }
 		    Node u(Edge e) const { return arcs[2 * e.id].target; }
 		    Node v(Edge e) const { return arcs[2 * e.id + 1].target; }
-		    typedef typename ItemSetTraits<Graph, Node>::ItemNotifier NodeNotifier;
+		    typedef typename ItemSetTraits<GR, Node>::ItemNotifier NodeNotifier;
 		    NodeNotifier& notifier(Node) const {
-		      return graph->notifier(Node());
+		      return _graph->notifier(Node());
+		    }
 		    template <typename _Value>
 		    class NodeMap : public Graph::template NodeMap<_Value> {
 		    template <typename V>
 		    class NodeMap : public GR::template NodeMap<V> {
 		    public:
-		      typedef typename _Graph::template NodeMap<_Value> Parent;
+		      typedef typename GR::template NodeMap<V> Parent;
 		      explicit NodeMap(const SmartEdgeSetBase<Graph>& arcset)
 		        : Parent(*arcset.graph) { }
 		      explicit NodeMap(const SmartEdgeSetBase<GR>& arcset)
 		        : Parent(*arcset._graph) { }
 		      NodeMap(const SmartEdgeSetBase<Graph>& arcset, const _Value& value)
 		        : Parent(*arcset.graph, value) { }
 		      NodeMap(const SmartEdgeSetBase<GR>& arcset, const V& value)
 		        : Parent(*arcset._graph, value) { }
 		      NodeMap& operator=(const NodeMap& cmap) {
 		        return operator=<NodeMap>(cmap);
+		      }
 		      template <typename CMap>
 		      NodeMap& operator=(const CMap& cmap) {
 		        Parent::operator=(cmap);
 		        return *this;
+		      }
 		    };
 		  };
 		  /// \ingroup semi_adaptors
 		  ///
 		  /// \brief Graph using a node set of another digraph or graph and an
 		  /// own edge set.
 		  ///
 		  /// This structure can be used to establish another graph over a
 		  /// node set of an existing one. This class uses the same Node type
 		  /// as the underlying graph, and each valid node of the original
 		  /// graph is valid in this arc set, therefore the node objects of
 		  /// the original graph can be used directly with this class. The
 		  /// node handling functions (id handling, observing, and iterators)
 		  /// works equivalently as in the original graph.
 		  ///
-		  /// \param _Graph The type of the graph which shares its node set
+		  /// \param GR The type of the graph which shares its node set
 		  /// with this class. Its interface must conform to the
 		  /// \ref concepts::Digraph "Digraph" or \ref concepts::Graph "Graph"
 		  ///  concept.
 		  ///
 		  /// This implementation is slightly faster than the \c ListEdgeSet,
 		  /// because it uses continuous storage for edges and it uses just
 		  /// single-linked lists for enumerate incident edges. Therefore the
 		  /// edges cannot be erased from the edge sets.
 		  ///
 		  /// \warning If a node is erased from the underlying graph and this
 		  /// node is incident to one edge in the edge set, then the edge set
 		  /// is invalidated, and it cannot be used anymore. The validity can
 		  /// be checked with the \c valid() member function.
 		  ///
 		  /// This class is fully conform to the \ref concepts::Graph
 		  /// "Graph" concept.
 		  template <typename _Graph>
 		  class SmartEdgeSet : public EdgeSetExtender<SmartEdgeSetBase<_Graph> > {
 		  template <typename GR>
 		  class SmartEdgeSet : public EdgeSetExtender<SmartEdgeSetBase<GR> > {
 		  public:
-		    typedef EdgeSetExtender<SmartEdgeSetBase<_Graph> > Parent;
+		    typedef EdgeSetExtender<SmartEdgeSetBase<GR> > Parent;
 		    typedef typename Parent::Node Node;
 		    typedef typename Parent::Arc Arc;
 		    typedef typename Parent::Edge Edge;
-		    typedef _Graph Graph;
+		    typedef GR Graph;
 		  protected:
 		    typedef typename Parent::NodesImplBase NodesImplBase;
 		    void eraseNode(const Node& node) {
 		      if (typename Parent::IncEdgeIt(*this, node) == INVALID) {
 		        return;
+		      }
 		      throw typename NodesImplBase::Notifier::ImmediateDetach();
+		    }
 		    void clearNodes() {
 		      Parent::clear();
+		    }
 		    class NodesImpl : public NodesImplBase {
 		    public:
 		      typedef NodesImplBase Parent;
-		      NodesImpl(const Graph& graph, SmartEdgeSet& arcset)
+		      NodesImpl(const GR& graph, SmartEdgeSet& arcset)
 		        : Parent(graph), _arcset(arcset) {}
 		      virtual ~NodesImpl() {}
 		      bool attached() const {
 		        return Parent::attached();
+		      }
 		    protected:
 		      virtual void erase(const Node& node) {
 		        try {
 		          _arcset.eraseNode(node);
 		          Parent::erase(node);
 		        } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) {
 		          Parent::clear();
 		          throw;
+		        }
+		      }
 		      virtual void erase(const std::vector<Node>& nodes) {
 		        try {
 		          for (int i = 0; i < int(nodes.size()); ++i) {
 		            _arcset.eraseNode(nodes[i]);
+		          }
 		          Parent::erase(nodes);
 		        } catch (const typename NodesImplBase::Notifier::ImmediateDetach&) {
 		          Parent::clear();
 		          throw;
+		        }
+		      }
 		      virtual void clear() {
 		        _arcset.clearNodes();
 		        Parent::clear();
+		      }
 		    private:
 		      SmartEdgeSet& _arcset;
 		    };
-		    NodesImpl nodes;
+		    NodesImpl _nodes;
 		  public:
 		    /// \brief Constructor of the EdgeSet.
 		    ///
 		    /// Constructor of the EdgeSet.
 		    SmartEdgeSet(const Graph& graph) : nodes(graph, *this) {
 		      Parent::initalize(graph, nodes);
 		    SmartEdgeSet(const GR& graph) : _nodes(graph, *this) {
 		      Parent::initalize(graph, _nodes);
+		    }
 		    /// \brief Add a new edge to the graph.
 		    ///
 		    /// Add a new edge to the graph with node \c u
 		    /// and node \c v endpoints.
 		    /// \return the new edge.
 		    Edge addEdge(const Node& u, const Node& v) {
 		      return Parent::addEdge(u, v);
+		    }
 		    /// \brief Validity check
 		    ///
 		    /// This functions gives back false if the EdgeSet is
 		    /// invalidated. It occurs when a node in the underlying graph is
 		    /// erased and it is not isolated in the EdgeSet.
 		    bool valid() const {
-		      return nodes.attached();
+		      return _nodes.attached();
+		    }
 		  };
+		}
 		#endif

test/CMakeLists.txt

Show inline comments

 		INCLUDE_DIRECTORIES(
 		  ${CMAKE_SOURCE_DIR}
 		  ${CMAKE_BINARY_DIR}
+		)
 		IF(HAVE_GLPK)
 		  INCLUDE_DIRECTORIES(${GLPK_INCLUDE_DIR})
 		ENDIF(HAVE_GLPK)
 		LINK_DIRECTORIES(${CMAKE_BINARY_DIR}/lemon)
 		SET(TESTS
-		#   adaptors_test
 		  adaptors_test
 		  bfs_test
 		  circulation_test
 		  counter_test
 		  dfs_test
 		  digraph_test
 		  dijkstra_test
 		  dim_test
-		#   edge_set_test
 		  edge_set_test
 		  error_test
 		  graph_copy_test
 		  graph_test
 		  graph_utils_test
 		  hao_orlin_test
 		  heap_test
 		  kruskal_test
 		  maps_test
 		  max_matching_test
 		  path_test
 		  preflow_test
 		  radix_sort_test
 		  random_test
 		  suurballe_test
 		  time_measure_test
 		  unionfind_test)
 		IF(HAVE_LP)
 		  ADD_EXECUTABLE(lp_test lp_test.cc)
 		  IF(HAVE_GLPK)
 		    TARGET_LINK_LIBRARIES(lp_test lemon ${GLPK_LIBRARIES})
 		  ENDIF(HAVE_GLPK)
 		  ADD_TEST(lp_test lp_test)
 		  IF(WIN32 AND HAVE_GLPK)
 		    GET_TARGET_PROPERTY(TARGET_LOC lp_test LOCATION)
 		    GET_FILENAME_COMPONENT(TARGET_PATH ${TARGET_LOC} PATH)
 		    ADD_CUSTOM_COMMAND(TARGET lp_test POST_BUILD
 		      COMMAND cmake -E copy ${GLPK_BIN_DIR}/glpk.dll ${TARGET_PATH}
 		      COMMAND cmake -E copy ${GLPK_BIN_DIR}/libltdl3.dll ${TARGET_PATH}
 		      COMMAND cmake -E copy ${GLPK_BIN_DIR}/zlib1.dll ${TARGET_PATH}
+		    )
 		  ENDIF(WIN32 AND HAVE_GLPK)
 		ENDIF(HAVE_LP)
 		IF(HAVE_MIP)
 		  ADD_EXECUTABLE(mip_test mip_test.cc)
 		  IF(HAVE_GLPK)
 		    TARGET_LINK_LIBRARIES(mip_test lemon ${GLPK_LIBRARIES})
 		  ENDIF(HAVE_GLPK)
 		  ADD_TEST(mip_test mip_test)
 		  IF(WIN32 AND HAVE_GLPK)
 		    GET_TARGET_PROPERTY(TARGET_LOC mip_test LOCATION)
 		    GET_FILENAME_COMPONENT(TARGET_PATH ${TARGET_LOC} PATH)
 		    ADD_CUSTOM_COMMAND(TARGET mip_test POST_BUILD
 		      COMMAND cmake -E copy ${GLPK_BIN_DIR}/glpk.dll ${TARGET_PATH}
 		      COMMAND cmake -E copy ${GLPK_BIN_DIR}/libltdl3.dll ${TARGET_PATH}

test/edge_set_test.cc

Show inline comments

 		/* -*- mode: C++; indent-tabs-mode: nil; -*-
+		 *
 		 * 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.
+		 *
 		 */
 		#include <iostream>
 		#include <vector>
 		#include <lemon/concepts/digraph.h>
 		#include <lemon/concepts/graph.h>
 		#include <lemon/concept_check.h>
 		#include <lemon/list_graph.h>
 		#include <lemon/edge_set.h>
 		#include "graph_test.h"
 		#include "test_tools.h"
 		using namespace lemon;
 		void checkSmartArcSet() {
-		  checkConcept<concepts::Digraph, SmartArcSet<concepts::Digraph> >();
+		  checkConcept<concepts::Digraph, SmartArcSet<ListDigraph> >();
 		  typedef ListDigraph Digraph;
 		  typedef SmartArcSet<Digraph> ArcSet;
 		  Digraph digraph;
 		  Digraph::Node
 		    n1 = digraph.addNode(),
 		    n2 = digraph.addNode();
 		  Digraph::Arc ga1 = digraph.addArc(n1, n2);
 		  ArcSet arc_set(digraph);
 		  Digraph::Arc ga2 = digraph.addArc(n2, n1);
 		  checkGraphNodeList(arc_set, 2);
 		  checkGraphArcList(arc_set, 0);
 		  Digraph::Node
 		    n3 = digraph.addNode();
 		  checkGraphNodeList(arc_set, 3);
 		  checkGraphArcList(arc_set, 0);
 		  ArcSet::Arc a1 = arc_set.addArc(n1, n2);
 		  check(arc_set.source(a1) == n1 && arc_set.target(a1) == n2, "Wrong arc");
 		  checkGraphNodeList(arc_set, 3);
 		  checkGraphArcList(arc_set, 1);
 		  checkGraphOutArcList(arc_set, n1, 1);
 		  checkGraphOutArcList(arc_set, n2, 0);
 		  checkGraphOutArcList(arc_set, n3, 0);
 		  checkGraphInArcList(arc_set, n1, 0);
 		  checkGraphInArcList(arc_set, n2, 1);
 		  checkGraphInArcList(arc_set, n3, 0);
 		  checkGraphConArcList(arc_set, 1);
 		  ArcSet::Arc a2 = arc_set.addArc(n2, n1),
 		    a3 = arc_set.addArc(n2, n3),
 		    a4 = arc_set.addArc(n2, n3);
 		  checkGraphNodeList(arc_set, 3);
 		  checkGraphArcList(arc_set, 4);
 		  checkGraphOutArcList(arc_set, n1, 1);
 		  checkGraphOutArcList(arc_set, n2, 3);
 		  checkGraphOutArcList(arc_set, n3, 0);
 		  checkGraphInArcList(arc_set, n1, 1);
 		  checkGraphInArcList(arc_set, n2, 1);
 		  checkGraphInArcList(arc_set, n3, 2);
 		  checkGraphConArcList(arc_set, 4);
 		  checkNodeIds(arc_set);
 		  checkArcIds(arc_set);
 		  checkGraphNodeMap(arc_set);
 		  checkGraphArcMap(arc_set);
 		  check(arc_set.valid(), "Wrong validity");
 		  digraph.erase(n1);
 		  check(!arc_set.valid(), "Wrong validity");
+		}
 		void checkListArcSet() {
-		  checkConcept<concepts::Digraph, SmartArcSet<concepts::Digraph> >();
+		  checkConcept<concepts::Digraph, SmartArcSet<ListDigraph> >();
 		  typedef ListDigraph Digraph;
 		  typedef ListArcSet<Digraph> ArcSet;
 		  Digraph digraph;
 		  Digraph::Node
 		    n1 = digraph.addNode(),
 		    n2 = digraph.addNode();
 		  Digraph::Arc ga1 = digraph.addArc(n1, n2);
 		  ArcSet arc_set(digraph);
 		  Digraph::Arc ga2 = digraph.addArc(n2, n1);
 		  checkGraphNodeList(arc_set, 2);
 		  checkGraphArcList(arc_set, 0);
 		  Digraph::Node
 		    n3 = digraph.addNode();
 		  checkGraphNodeList(arc_set, 3);
 		  checkGraphArcList(arc_set, 0);
 		  ArcSet::Arc a1 = arc_set.addArc(n1, n2);
 		  check(arc_set.source(a1) == n1 && arc_set.target(a1) == n2, "Wrong arc");
 		  checkGraphNodeList(arc_set, 3);
 		  checkGraphArcList(arc_set, 1);
 		  checkGraphOutArcList(arc_set, n1, 1);
 		  checkGraphOutArcList(arc_set, n2, 0);
 		  checkGraphOutArcList(arc_set, n3, 0);
 		  checkGraphInArcList(arc_set, n1, 0);
 		  checkGraphInArcList(arc_set, n2, 1);
 		  checkGraphInArcList(arc_set, n3, 0);
 		  checkGraphConArcList(arc_set, 1);
 		  ArcSet::Arc a2 = arc_set.addArc(n2, n1),
 		    a3 = arc_set.addArc(n2, n3),
 		    a4 = arc_set.addArc(n2, n3);
 		  checkGraphNodeList(arc_set, 3);
 		  checkGraphArcList(arc_set, 4);
 		  checkGraphOutArcList(arc_set, n1, 1);
 		  checkGraphOutArcList(arc_set, n2, 3);
 		  checkGraphOutArcList(arc_set, n3, 0);
 		  checkGraphInArcList(arc_set, n1, 1);
 		  checkGraphInArcList(arc_set, n2, 1);
 		  checkGraphInArcList(arc_set, n3, 2);
 		  checkGraphConArcList(arc_set, 4);
 		  checkNodeIds(arc_set);
 		  checkArcIds(arc_set);
 		  checkGraphNodeMap(arc_set);
 		  checkGraphArcMap(arc_set);
 		  digraph.erase(n1);
 		  checkGraphNodeList(arc_set, 2);
 		  checkGraphArcList(arc_set, 2);
 		  checkGraphOutArcList(arc_set, n2, 2);
 		  checkGraphOutArcList(arc_set, n3, 0);
 		  checkGraphInArcList(arc_set, n2, 0);
 		  checkGraphInArcList(arc_set, n3, 2);
 		  checkNodeIds(arc_set);
 		  checkArcIds(arc_set);
 		  checkGraphNodeMap(arc_set);
 		  checkGraphArcMap(arc_set);
 		  checkGraphConArcList(arc_set, 2);
+		}
 		void checkSmartEdgeSet() {
-		  checkConcept<concepts::Digraph, SmartEdgeSet<concepts::Digraph> >();
+		  checkConcept<concepts::Digraph, SmartEdgeSet<ListDigraph> >();
 		  typedef ListDigraph Digraph;
 		  typedef SmartEdgeSet<Digraph> EdgeSet;
 		  Digraph digraph;
 		  Digraph::Node
 		    n1 = digraph.addNode(),
 		    n2 = digraph.addNode();
 		  Digraph::Arc ga1 = digraph.addArc(n1, n2);
 		  EdgeSet edge_set(digraph);
 		  Digraph::Arc ga2 = digraph.addArc(n2, n1);
 		  checkGraphNodeList(edge_set, 2);
 		  checkGraphArcList(edge_set, 0);
 		  checkGraphEdgeList(edge_set, 0);
 		  Digraph::Node
 		    n3 = digraph.addNode();
 		  checkGraphNodeList(edge_set, 3);
 		  checkGraphArcList(edge_set, 0);
 		  checkGraphEdgeList(edge_set, 0);
 		  EdgeSet::Edge e1 = edge_set.addEdge(n1, n2);
 		  check((edge_set.u(e1) == n1 && edge_set.v(e1) == n2) ||
 		        (edge_set.v(e1) == n1 && edge_set.u(e1) == n2), "Wrong edge");
 		  checkGraphNodeList(edge_set, 3);
 		  checkGraphArcList(edge_set, 2);
 		  checkGraphEdgeList(edge_set, 1);
 		  checkGraphOutArcList(edge_set, n1, 1);
 		  checkGraphOutArcList(edge_set, n2, 1);
 		  checkGraphOutArcList(edge_set, n3, 0);
 		  checkGraphInArcList(edge_set, n1, 1);
 		  checkGraphInArcList(edge_set, n2, 1);
 		  checkGraphInArcList(edge_set, n3, 0);
 		  checkGraphIncEdgeList(edge_set, n1, 1);
 		  checkGraphIncEdgeList(edge_set, n2, 1);
 		  checkGraphIncEdgeList(edge_set, n3, 0);
 		  checkGraphConEdgeList(edge_set, 1);
 		  checkGraphConArcList(edge_set, 2);
 		  EdgeSet::Edge e2 = edge_set.addEdge(n2, n1),
 		    e3 = edge_set.addEdge(n2, n3),
 		    e4 = edge_set.addEdge(n2, n3);
 		  checkGraphNodeList(edge_set, 3);
 		  checkGraphEdgeList(edge_set, 4);
 		  checkGraphOutArcList(edge_set, n1, 2);
 		  checkGraphOutArcList(edge_set, n2, 4);
 		  checkGraphOutArcList(edge_set, n3, 2);
 		  checkGraphInArcList(edge_set, n1, 2);
 		  checkGraphInArcList(edge_set, n2, 4);
 		  checkGraphInArcList(edge_set, n3, 2);
 		  checkGraphIncEdgeList(edge_set, n1, 2);
 		  checkGraphIncEdgeList(edge_set, n2, 4);
 		  checkGraphIncEdgeList(edge_set, n3, 2);
 		  checkGraphConEdgeList(edge_set, 4);
 		  checkGraphConArcList(edge_set, 8);
 		  checkArcDirections(edge_set);
 		  checkNodeIds(edge_set);
 		  checkArcIds(edge_set);
 		  checkEdgeIds(edge_set);
 		  checkGraphNodeMap(edge_set);
 		  checkGraphArcMap(edge_set);
 		  checkGraphEdgeMap(edge_set);
 		  check(edge_set.valid(), "Wrong validity");
 		  digraph.erase(n1);
 		  check(!edge_set.valid(), "Wrong validity");
+		}
 		void checkListEdgeSet() {
-		  checkConcept<concepts::Digraph, ListEdgeSet<concepts::Digraph> >();
+		  checkConcept<concepts::Digraph, ListEdgeSet<ListDigraph> >();
 		  typedef ListDigraph Digraph;
 		  typedef ListEdgeSet<Digraph> EdgeSet;
 		  Digraph digraph;
 		  Digraph::Node
 		    n1 = digraph.addNode(),
 		    n2 = digraph.addNode();
 		  Digraph::Arc ga1 = digraph.addArc(n1, n2);
 		  EdgeSet edge_set(digraph);
 		  Digraph::Arc ga2 = digraph.addArc(n2, n1);
 		  checkGraphNodeList(edge_set, 2);
 		  checkGraphArcList(edge_set, 0);
 		  checkGraphEdgeList(edge_set, 0);
 		  Digraph::Node
 		    n3 = digraph.addNode();
 		  checkGraphNodeList(edge_set, 3);
 		  checkGraphArcList(edge_set, 0);
 		  checkGraphEdgeList(edge_set, 0);
 		  EdgeSet::Edge e1 = edge_set.addEdge(n1, n2);
 		  check((edge_set.u(e1) == n1 && edge_set.v(e1) == n2) ||
 		        (edge_set.v(e1) == n1 && edge_set.u(e1) == n2), "Wrong edge");
 		  checkGraphNodeList(edge_set, 3);
 		  checkGraphArcList(edge_set, 2);
 		  checkGraphEdgeList(edge_set, 1);
 		  checkGraphOutArcList(edge_set, n1, 1);
 		  checkGraphOutArcList(edge_set, n2, 1);
 		  checkGraphOutArcList(edge_set, n3, 0);
 		  checkGraphInArcList(edge_set, n1, 1);
 		  checkGraphInArcList(edge_set, n2, 1);
 		  checkGraphInArcList(edge_set, n3, 0);
 		  checkGraphIncEdgeList(edge_set, n1, 1);
 		  checkGraphIncEdgeList(edge_set, n2, 1);
 		  checkGraphIncEdgeList(edge_set, n3, 0);
 		  checkGraphConEdgeList(edge_set, 1);
 		  checkGraphConArcList(edge_set, 2);
 		  EdgeSet::Edge e2 = edge_set.addEdge(n2, n1),

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