LEMON/LEMON-official Changeset - r986:e958855b8186

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Changeset - r986:e958855b8186

« 925:bb871c
« 985:f63fd2

1001:ffc2d2 »

r986:e958855b8186

Fri, 25 Jun 2010 06:20:28

[Not Reviewed]

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alpar (Alpar Juttner)
alpar@cs.elte.hu

Merge bugfix #371 to branch 1.2

0 2 0

merge 1.2

2 files changed with 26 insertions and 0 deletions:

lemon/core.h

test/graph_copy_test.cc

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lemon/core.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) 2003-2010
 		 * 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_CORE_H
 		#define LEMON_CORE_H
 		#include <vector>
 		#include <algorithm>
 		#include <lemon/config.h>
 		#include <lemon/bits/enable_if.h>
 		#include <lemon/bits/traits.h>
 		#include <lemon/assert.h>
 		// Disable the following warnings when compiling with MSVC:
 		// C4250: 'class1' : inherits 'class2::member' via dominance
 		// C4355: 'this' : used in base member initializer list
 		// C4503: 'function' : decorated name length exceeded, name was truncated
 		// C4800: 'type' : forcing value to bool 'true' or 'false' (performance warning)
 		// C4996: 'function': was declared deprecated
 		#ifdef _MSC_VER
 		#pragma warning( disable : 4250 4355 4503 4800 4996 )
 		#endif
 		///\file
 		///\brief LEMON core utilities.
 		///
 		///This header file contains core utilities for LEMON.
 		///It is automatically included by all graph types, therefore it usually
 		///do not have to be included directly.
 		namespace lemon {
 		  /// \brief Dummy type to make it easier to create invalid iterators.
 		  ///
 		  /// Dummy type to make it easier to create invalid iterators.
 		  /// See \ref INVALID for the usage.
 		  struct Invalid {
 		  public:
 		    bool operator==(Invalid) { return true;  }
 		    bool operator!=(Invalid) { return false; }
 		    bool operator< (Invalid) { return false; }
 		  };
 		  /// \brief Invalid iterators.
 		  ///
 		  /// \ref Invalid is a global type that converts to each iterator
 		  /// in such a way that the value of the target iterator will be invalid.
 		#ifdef LEMON_ONLY_TEMPLATES
 		  const Invalid INVALID = Invalid();
 		#else
 		  extern const Invalid INVALID;
 		#endif
 		  /// \addtogroup gutils
 		  /// @{
 		  ///Create convenience typedefs for the digraph types and iterators
 		  ///This \c \#define creates convenient type definitions for the following
 		  ///types of \c Digraph: \c Node,  \c NodeIt, \c Arc, \c ArcIt, \c InArcIt,
 		  ///\c OutArcIt, \c BoolNodeMap, \c IntNodeMap, \c DoubleNodeMap,
 		  ///\c BoolArcMap, \c IntArcMap, \c DoubleArcMap.
 		  ///
 		  ///\note If the graph type is a dependent type, ie. the graph type depend
 		  ///on a template parameter, then use \c TEMPLATE_DIGRAPH_TYPEDEFS()
 		  ///macro.
 		#define DIGRAPH_TYPEDEFS(Digraph)                                       \
 		  typedef Digraph::Node Node;                                           \
 		  typedef Digraph::NodeIt NodeIt;                                       \
 		  typedef Digraph::Arc Arc;                                             \
 		  typedef Digraph::ArcIt ArcIt;                                         \
 		  typedef Digraph::InArcIt InArcIt;                                     \
 		  typedef Digraph::OutArcIt OutArcIt;                                   \
 		  typedef Digraph::NodeMap<bool> BoolNodeMap;                           \
 		  typedef Digraph::NodeMap<int> IntNodeMap;                             \
 		  typedef Digraph::NodeMap<double> DoubleNodeMap;                       \
 		  typedef Digraph::ArcMap<bool> BoolArcMap;                             \
 		  typedef Digraph::ArcMap<int> IntArcMap;                               \
 		  typedef Digraph::ArcMap<double> DoubleArcMap
 		  ///Create convenience typedefs for the digraph types and iterators
 		  ///\see DIGRAPH_TYPEDEFS
 		  ///
 		  ///\note Use this macro, if the graph type is a dependent type,
 		  ///ie. the graph type depend on a template parameter.
 		#define TEMPLATE_DIGRAPH_TYPEDEFS(Digraph)                              \
 		  typedef typename Digraph::Node Node;                                  \
 		  typedef typename Digraph::NodeIt NodeIt;                              \
 		  typedef typename Digraph::Arc Arc;                                    \
 		  typedef typename Digraph::ArcIt ArcIt;                                \
 		  typedef typename Digraph::InArcIt InArcIt;                            \
 		  typedef typename Digraph::OutArcIt OutArcIt;                          \
 		  typedef typename Digraph::template NodeMap<bool> BoolNodeMap;         \
 		  typedef typename Digraph::template NodeMap<int> IntNodeMap;           \
 		  typedef typename Digraph::template NodeMap<double> DoubleNodeMap;     \
 		  typedef typename Digraph::template ArcMap<bool> BoolArcMap;           \
 		  typedef typename Digraph::template ArcMap<int> IntArcMap;             \
 		  typedef typename Digraph::template ArcMap<double> DoubleArcMap
 		  ///Create convenience typedefs for the graph types and iterators
 		  ///This \c \#define creates the same convenient type definitions as defined
 		  ///by \ref DIGRAPH_TYPEDEFS(Graph) and six more, namely it creates
 		  ///\c Edge, \c EdgeIt, \c IncEdgeIt, \c BoolEdgeMap, \c IntEdgeMap,
 		  ///\c DoubleEdgeMap.
 		  ///
 		  ///\note If the graph type is a dependent type, ie. the graph type depend
 		  ///on a template parameter, then use \c TEMPLATE_GRAPH_TYPEDEFS()
 		  ///macro.
 		#define GRAPH_TYPEDEFS(Graph)                                           \
 		  DIGRAPH_TYPEDEFS(Graph);                                              \
 		  typedef Graph::Edge Edge;                                             \
 		  typedef Graph::EdgeIt EdgeIt;                                         \
 		  typedef Graph::IncEdgeIt IncEdgeIt;                                   \
 		  typedef Graph::EdgeMap<bool> BoolEdgeMap;                             \
 		  typedef Graph::EdgeMap<int> IntEdgeMap;                               \
 		  typedef Graph::EdgeMap<double> DoubleEdgeMap
 		  ///Create convenience typedefs for the graph types and iterators
 		  ///\see GRAPH_TYPEDEFS
 		  ///
 		  ///\note Use this macro, if the graph type is a dependent type,
 		  ///ie. the graph type depend on a template parameter.
 		#define TEMPLATE_GRAPH_TYPEDEFS(Graph)                                  \
 		  TEMPLATE_DIGRAPH_TYPEDEFS(Graph);                                     \
 		  typedef typename Graph::Edge Edge;                                    \
 		  typedef typename Graph::EdgeIt EdgeIt;                                \
 		  typedef typename Graph::IncEdgeIt IncEdgeIt;                          \
 		  typedef typename Graph::template EdgeMap<bool> BoolEdgeMap;           \
 		  typedef typename Graph::template EdgeMap<int> IntEdgeMap;             \
 		  typedef typename Graph::template EdgeMap<double> DoubleEdgeMap
 		  /// \brief Function to count the items in a graph.
 		  ///
 		  /// This function counts the items (nodes, arcs etc.) in a graph.
 		  /// The complexity of the function is linear because
 		  /// it iterates on all of the items.
 		  template <typename Graph, typename Item>
 		  inline int countItems(const Graph& g) {
 		    typedef typename ItemSetTraits<Graph, Item>::ItemIt ItemIt;
 		    int num = 0;
 		    for (ItemIt it(g); it != INVALID; ++it) {
 		      ++num;
+		    }
 		    return num;
+		  }
 		  // Node counting:
 		  namespace _core_bits {
 		    template <typename Graph, typename Enable = void>
 		    struct CountNodesSelector {
 		      static int count(const Graph &g) {
 		        return countItems<Graph, typename Graph::Node>(g);
+		      }
 		    };
 		    template <typename Graph>
 		    struct CountNodesSelector<
 		      Graph, typename
 		      enable_if<typename Graph::NodeNumTag, void>::type>
+		    {
 		      static int count(const Graph &g) {
 		        return g.nodeNum();
+		      }
 		    };
+		  }
 		  /// \brief Function to count the nodes in the graph.
 		  ///
 		  /// This function counts the nodes in the graph.
 		  /// The complexity of the function is <em>O</em>(<em>n</em>), but for some
 		  /// graph structures it is specialized to run in <em>O</em>(1).
 		  ///
 		  /// \note If the graph contains a \c nodeNum() member function and a
 		  /// \c NodeNumTag tag then this function calls directly the member
 		  /// function to query the cardinality of the node set.
 		  template <typename Graph>
 		  inline int countNodes(const Graph& g) {
 		    return _core_bits::CountNodesSelector<Graph>::count(g);
+		  }
 		  // Arc counting:
 		  namespace _core_bits {
 		    template <typename Graph, typename Enable = void>
 		    struct CountArcsSelector {
 		      static int count(const Graph &g) {
 		        return countItems<Graph, typename Graph::Arc>(g);
+		      }
 		    };
 		    template <typename Graph>
 		    struct CountArcsSelector<
 		      Graph,
 		      typename enable_if<typename Graph::ArcNumTag, void>::type>
+		    {
 		      static int count(const Graph &g) {
 		        return g.arcNum();
+		      }
 		    };
+		  }
 		  /// \brief Function to count the arcs in the graph.
 		  ///
 		  /// This function counts the arcs in the graph.
 		  /// The complexity of the function is <em>O</em>(<em>m</em>), but for some
 		  /// graph structures it is specialized to run in <em>O</em>(1).
 		  ///
 		  /// \note If the graph contains a \c arcNum() member function and a
 		  /// \c ArcNumTag tag then this function calls directly the member
 		  /// function to query the cardinality of the arc set.
 		  template <typename Graph>
 		  inline int countArcs(const Graph& g) {
 		    return _core_bits::CountArcsSelector<Graph>::count(g);
+		  }
 		  // Edge counting:
 		  namespace _core_bits {
 		    template <typename Graph, typename Enable = void>
 		    struct CountEdgesSelector {
 		      static int count(const Graph &g) {
 		        return countItems<Graph, typename Graph::Edge>(g);
+		      }
 		    };
 		    template <typename Graph>
 		    struct CountEdgesSelector<
 		      Graph,
 		      typename enable_if<typename Graph::EdgeNumTag, void>::type>
+		    {
 		      static int count(const Graph &g) {
 		        return g.edgeNum();
+		      }
 		    };
+		  }
 		  /// \brief Function to count the edges in the graph.
 		  ///
 		  /// This function counts the edges in the graph.
 		  /// The complexity of the function is <em>O</em>(<em>m</em>), but for some
 		  /// graph structures it is specialized to run in <em>O</em>(1).
 		  ///
 		  /// \note If the graph contains a \c edgeNum() member function and a
 		  /// \c EdgeNumTag tag then this function calls directly the member
 		  /// function to query the cardinality of the edge set.
 		  template <typename Graph>
 		  inline int countEdges(const Graph& g) {
 		    return _core_bits::CountEdgesSelector<Graph>::count(g);
+		  }
 		  template <typename Graph, typename DegIt>
 		  inline int countNodeDegree(const Graph& _g, const typename Graph::Node& _n) {
 		    int num = 0;
 		    for (DegIt it(_g, _n); it != INVALID; ++it) {
 		      ++num;
+		    }
 		    return num;
+		  }
 		  /// \brief Function to count the number of the out-arcs from node \c n.
 		  ///
 		  /// This function counts the number of the out-arcs from node \c n
 		  /// in the graph \c g.
 		  template <typename Graph>
 		  inline int countOutArcs(const Graph& g,  const typename Graph::Node& n) {
 		    return countNodeDegree<Graph, typename Graph::OutArcIt>(g, n);
+		  }
 		  /// \brief Function to count the number of the in-arcs to node \c n.
 		  ///
 		  /// This function counts the number of the in-arcs to node \c n
 		  /// in the graph \c g.
 		  template <typename Graph>
 		  inline int countInArcs(const Graph& g,  const typename Graph::Node& n) {
 		    return countNodeDegree<Graph, typename Graph::InArcIt>(g, n);
+		  }
 		  /// \brief Function to count the number of the inc-edges to node \c n.
 		  ///
 		  /// This function counts the number of the inc-edges to node \c n
 		  /// in the undirected graph \c g.
 		  template <typename Graph>
 		  inline int countIncEdges(const Graph& g,  const typename Graph::Node& n) {
 		    return countNodeDegree<Graph, typename Graph::IncEdgeIt>(g, n);
+		  }
 		  namespace _core_bits {
 		    template <typename Digraph, typename Item, typename RefMap>
 		    class MapCopyBase {
 		    public:
 		      virtual void copy(const Digraph& from, const RefMap& refMap) = 0;
 		      virtual ~MapCopyBase() {}
 		    };
 		    template <typename Digraph, typename Item, typename RefMap,
 		              typename FromMap, typename ToMap>
 		    class MapCopy : public MapCopyBase<Digraph, Item, RefMap> {
 		    public:
 		      MapCopy(const FromMap& map, ToMap& tmap)
 		        : _map(map), _tmap(tmap) {}
 		      virtual void copy(const Digraph& digraph, const RefMap& refMap) {
 		        typedef typename ItemSetTraits<Digraph, Item>::ItemIt ItemIt;
 		        for (ItemIt it(digraph); it != INVALID; ++it) {
 		          _tmap.set(refMap[it], _map[it]);
+		        }
+		      }
 		    private:
 		      const FromMap& _map;
 		      ToMap& _tmap;
 		    };
 		    template <typename Digraph, typename Item, typename RefMap, typename It>
 		    class ItemCopy : public MapCopyBase<Digraph, Item, RefMap> {
 		    public:
 		      ItemCopy(const Item& item, It& it) : _item(item), _it(it) {}
 		      virtual void copy(const Digraph&, const RefMap& refMap) {
 		        _it = refMap[_item];
+		      }
 		    private:
 		      Item _item;
 		      It& _it;
 		    };
 		    template <typename Digraph, typename Item, typename RefMap, typename Ref>
 		    class RefCopy : public MapCopyBase<Digraph, Item, RefMap> {
 		    public:
 		      RefCopy(Ref& map) : _map(map) {}
 		      virtual void copy(const Digraph& digraph, const RefMap& refMap) {
 		        typedef typename ItemSetTraits<Digraph, Item>::ItemIt ItemIt;
 		        for (ItemIt it(digraph); it != INVALID; ++it) {
 		          _map.set(it, refMap[it]);
+		        }
+		      }
 		    private:
 		      Ref& _map;
 		    };
 		    template <typename Digraph, typename Item, typename RefMap,
 		              typename CrossRef>
 		    class CrossRefCopy : public MapCopyBase<Digraph, Item, RefMap> {
 		    public:
 		      CrossRefCopy(CrossRef& cmap) : _cmap(cmap) {}
 		      virtual void copy(const Digraph& digraph, const RefMap& refMap) {
 		        typedef typename ItemSetTraits<Digraph, Item>::ItemIt ItemIt;
 		        for (ItemIt it(digraph); it != INVALID; ++it) {
 		          _cmap.set(refMap[it], it);
+		        }
+		      }
 		    private:
 		      CrossRef& _cmap;
 		    };
 		    template <typename Digraph, typename Enable = void>
 		    struct DigraphCopySelector {
 		      template <typename From, typename NodeRefMap, typename ArcRefMap>
 		      static void copy(const From& from, Digraph &to,
 		                       NodeRefMap& nodeRefMap, ArcRefMap& arcRefMap) {
 		        to.clear();
 		        for (typename From::NodeIt it(from); it != INVALID; ++it) {
 		          nodeRefMap[it] = to.addNode();
+		        }
 		        for (typename From::ArcIt it(from); it != INVALID; ++it) {
 		          arcRefMap[it] = to.addArc(nodeRefMap[from.source(it)],
 		                                    nodeRefMap[from.target(it)]);
+		        }
+		      }
 		    };
 		    template <typename Digraph>
 		    struct DigraphCopySelector<
 		      Digraph,
 		      typename enable_if<typename Digraph::BuildTag, void>::type>
+		    {
 		      template <typename From, typename NodeRefMap, typename ArcRefMap>
 		      static void copy(const From& from, Digraph &to,
 		                       NodeRefMap& nodeRefMap, ArcRefMap& arcRefMap) {
 		        to.build(from, nodeRefMap, arcRefMap);
+		      }
 		    };
 		    template <typename Graph, typename Enable = void>
 		    struct GraphCopySelector {
 		      template <typename From, typename NodeRefMap, typename EdgeRefMap>
 		      static void copy(const From& from, Graph &to,
 		                       NodeRefMap& nodeRefMap, EdgeRefMap& edgeRefMap) {
 		        to.clear();
 		        for (typename From::NodeIt it(from); it != INVALID; ++it) {
 		          nodeRefMap[it] = to.addNode();
+		        }
 		        for (typename From::EdgeIt it(from); it != INVALID; ++it) {
 		          edgeRefMap[it] = to.addEdge(nodeRefMap[from.u(it)],
 		                                      nodeRefMap[from.v(it)]);
+		        }
+		      }
 		    };
 		    template <typename Graph>
 		    struct GraphCopySelector<
 		      Graph,
 		      typename enable_if<typename Graph::BuildTag, void>::type>
+		    {
 		      template <typename From, typename NodeRefMap, typename EdgeRefMap>
 		      static void copy(const From& from, Graph &to,
 		                       NodeRefMap& nodeRefMap, EdgeRefMap& edgeRefMap) {
 		        to.build(from, nodeRefMap, edgeRefMap);
+		      }
 		    };
+		  }
 		  /// \brief Class to copy a digraph.
 		  ///
 		  /// Class to copy a digraph to another digraph (duplicate a digraph). The
 		  /// simplest way of using it is through the \c digraphCopy() function.
 		  ///
 		  /// This class not only make a copy of a digraph, but it can create
 		  /// references and cross references between the nodes and arcs of
 		  /// the two digraphs, and it can copy maps to use with the newly created
 		  /// digraph.
 		  ///
 		  /// To make a copy from a digraph, first an instance of DigraphCopy
 		  /// should be created, then the data belongs to the digraph should
 		  /// assigned to copy. In the end, the \c run() member should be
 		  /// called.
 		  ///
 		  /// The next code copies a digraph with several data:
 		  ///\code
 		  ///  DigraphCopy<OrigGraph, NewGraph> cg(orig_graph, new_graph);
 		  ///  // Create references for the nodes
 		  ///  OrigGraph::NodeMap<NewGraph::Node> nr(orig_graph);
 		  ///  cg.nodeRef(nr);
 		  ///  // Create cross references (inverse) for the arcs
 		  ///  NewGraph::ArcMap<OrigGraph::Arc> acr(new_graph);
 		  ///  cg.arcCrossRef(acr);
 		  ///  // Copy an arc map
 		  ///  OrigGraph::ArcMap<double> oamap(orig_graph);
 		  ///  NewGraph::ArcMap<double> namap(new_graph);
 		  ///  cg.arcMap(oamap, namap);
 		  ///  // Copy a node
 		  ///  OrigGraph::Node on;
 		  ///  NewGraph::Node nn;
 		  ///  cg.node(on, nn);
 		  ///  // Execute copying
 		  ///  cg.run();
 		  ///\endcode
 		  template <typename From, typename To>
 		  class DigraphCopy {
 		  private:
 		    typedef typename From::Node Node;
 		    typedef typename From::NodeIt NodeIt;
 		    typedef typename From::Arc Arc;
 		    typedef typename From::ArcIt ArcIt;
 		    typedef typename To::Node TNode;
 		    typedef typename To::Arc TArc;
 		    typedef typename From::template NodeMap<TNode> NodeRefMap;
 		    typedef typename From::template ArcMap<TArc> ArcRefMap;
 		  public:
 		    /// \brief Constructor of DigraphCopy.
 		    ///
 		    /// Constructor of DigraphCopy for copying the content of the
 		    /// \c from digraph into the \c to digraph.
 		    DigraphCopy(const From& from, To& to)
 		      : _from(from), _to(to) {}
 		    /// \brief Destructor of DigraphCopy
 		    ///
 		    /// Destructor of DigraphCopy.
 		    ~DigraphCopy() {
 		      for (int i = 0; i < int(_node_maps.size()); ++i) {
 		        delete _node_maps[i];
+		      }
 		      for (int i = 0; i < int(_arc_maps.size()); ++i) {
 		        delete _arc_maps[i];
+		      }
+		    }
 		    /// \brief Copy the node references into the given map.
 		    ///
 		    /// This function copies the node references into the given map.
 		    /// The parameter should be a map, whose key type is the Node type of
 		    /// the source digraph, while the value type is the Node type of the
 		    /// destination digraph.
 		    template <typename NodeRef>
 		    DigraphCopy& nodeRef(NodeRef& map) {
 		      _node_maps.push_back(new _core_bits::RefCopy<From, Node,
 		                           NodeRefMap, NodeRef>(map));
 		      return *this;
+		    }
 		    /// \brief Copy the node cross references into the given map.
 		    ///
 		    /// This function copies the node cross references (reverse references)
 		    /// into the given map. The parameter should be a map, whose key type
 		    /// is the Node type of the destination digraph, while the value type is
 		    /// the Node type of the source digraph.
 		    template <typename NodeCrossRef>
 		    DigraphCopy& nodeCrossRef(NodeCrossRef& map) {
 		      _node_maps.push_back(new _core_bits::CrossRefCopy<From, Node,
 		                           NodeRefMap, NodeCrossRef>(map));
 		      return *this;
+		    }
 		    /// \brief Make a copy of the given node map.
 		    ///
 		    /// This function makes a copy of the given node map for the newly
 		    /// created digraph.
 		    /// The key type of the new map \c tmap should be the Node type of the
 		    /// destination digraph, and the key type of the original map \c map
 		    /// should be the Node type of the source digraph.
 		    template <typename FromMap, typename ToMap>
 		    DigraphCopy& nodeMap(const FromMap& map, ToMap& tmap) {
 		      _node_maps.push_back(new _core_bits::MapCopy<From, Node,
 		                           NodeRefMap, FromMap, ToMap>(map, tmap));
 		      return *this;
+		    }
 		    /// \brief Make a copy of the given node.
 		    ///
 		    /// This function makes a copy of the given node.
 		    DigraphCopy& node(const Node& node, TNode& tnode) {
 		      _node_maps.push_back(new _core_bits::ItemCopy<From, Node,
 		                           NodeRefMap, TNode>(node, tnode));
 		      return *this;
+		    }
 		    /// \brief Copy the arc references into the given map.
 		    ///
 		    /// This function copies the arc references into the given map.
 		    /// The parameter should be a map, whose key type is the Arc type of
 		    /// the source digraph, while the value type is the Arc type of the
 		    /// destination digraph.
 		    template <typename ArcRef>
 		    DigraphCopy& arcRef(ArcRef& map) {
 		      _arc_maps.push_back(new _core_bits::RefCopy<From, Arc,
 		                          ArcRefMap, ArcRef>(map));
 		      return *this;
+		    }
 		    /// \brief Copy the arc cross references into the given map.
 		    ///
 		    /// This function copies the arc cross references (reverse references)
 		    /// into the given map. The parameter should be a map, whose key type
 		    /// is the Arc type of the destination digraph, while the value type is
 		    /// the Arc type of the source digraph.
 		    template <typename ArcCrossRef>
 		    DigraphCopy& arcCrossRef(ArcCrossRef& map) {
 		      _arc_maps.push_back(new _core_bits::CrossRefCopy<From, Arc,
 		                          ArcRefMap, ArcCrossRef>(map));
 		      return *this;
+		    }
 		    /// \brief Make a copy of the given arc map.
 		    ///
 		    /// This function makes a copy of the given arc map for the newly
 		    /// created digraph.
 		    /// The key type of the new map \c tmap should be the Arc type of the
 		    /// destination digraph, and the key type of the original map \c map
 		    /// should be the Arc type of the source digraph.
 		    template <typename FromMap, typename ToMap>
 		    DigraphCopy& arcMap(const FromMap& map, ToMap& tmap) {
 		      _arc_maps.push_back(new _core_bits::MapCopy<From, Arc,
 		                          ArcRefMap, FromMap, ToMap>(map, tmap));
 		      return *this;
+		    }
 		    /// \brief Make a copy of the given arc.
 		    ///
 		    /// This function makes a copy of the given arc.
 		    DigraphCopy& arc(const Arc& arc, TArc& tarc) {
 		      _arc_maps.push_back(new _core_bits::ItemCopy<From, Arc,
 		                          ArcRefMap, TArc>(arc, tarc));
 		      return *this;
+		    }
 		    /// \brief Execute copying.
 		    ///
 		    /// This function executes the copying of the digraph along with the
 		    /// copying of the assigned data.
 		    void run() {
 		      NodeRefMap nodeRefMap(_from);
 		      ArcRefMap arcRefMap(_from);
 		      _core_bits::DigraphCopySelector<To>::
 		        copy(_from, _to, nodeRefMap, arcRefMap);
 		      for (int i = 0; i < int(_node_maps.size()); ++i) {
 		        _node_maps[i]->copy(_from, nodeRefMap);
+		      }
 		      for (int i = 0; i < int(_arc_maps.size()); ++i) {
 		        _arc_maps[i]->copy(_from, arcRefMap);
+		      }
+		    }
 		  protected:
 		    const From& _from;
 		    To& _to;
 		    std::vector<_core_bits::MapCopyBase<From, Node, NodeRefMap>* >
 		      _node_maps;
 		    std::vector<_core_bits::MapCopyBase<From, Arc, ArcRefMap>* >
 		      _arc_maps;
 		  };
 		  /// \brief Copy a digraph to another digraph.
 		  ///
 		  /// This function copies a digraph to another digraph.
 		  /// The complete usage of it is detailed in the DigraphCopy class, but
 		  /// a short example shows a basic work:
 		  ///\code
 		  /// digraphCopy(src, trg).nodeRef(nr).arcCrossRef(acr).run();
 		  ///\endcode
 		  ///
 		  /// After the copy the \c nr map will contain the mapping from the
 		  /// nodes of the \c from digraph to the nodes of the \c to digraph and
 		  /// \c acr will contain the mapping from the arcs of the \c to digraph
 		  /// to the arcs of the \c from digraph.
 		  ///
 		  /// \see DigraphCopy
 		  template <typename From, typename To>
 		  DigraphCopy<From, To> digraphCopy(const From& from, To& to) {
 		    return DigraphCopy<From, To>(from, to);
+		  }
 		  /// \brief Class to copy a graph.
 		  ///
 		  /// Class to copy a graph to another graph (duplicate a graph). The
 		  /// simplest way of using it is through the \c graphCopy() function.
 		  ///
 		  /// This class not only make a copy of a graph, but it can create
 		  /// references and cross references between the nodes, edges and arcs of
 		  /// the two graphs, and it can copy maps for using with the newly created
 		  /// graph.
 		  ///
 		  /// To make a copy from a graph, first an instance of GraphCopy
 		  /// should be created, then the data belongs to the graph should
 		  /// assigned to copy. In the end, the \c run() member should be
 		  /// called.
 		  ///
 		  /// The next code copies a graph with several data:
 		  ///\code
 		  ///  GraphCopy<OrigGraph, NewGraph> cg(orig_graph, new_graph);
 		  ///  // Create references for the nodes
 		  ///  OrigGraph::NodeMap<NewGraph::Node> nr(orig_graph);
 		  ///  cg.nodeRef(nr);
 		  ///  // Create cross references (inverse) for the edges
 		  ///  NewGraph::EdgeMap<OrigGraph::Edge> ecr(new_graph);
 		  ///  cg.edgeCrossRef(ecr);
 		  ///  // Copy an edge map
 		  ///  OrigGraph::EdgeMap<double> oemap(orig_graph);
 		  ///  NewGraph::EdgeMap<double> nemap(new_graph);
 		  ///  cg.edgeMap(oemap, nemap);
 		  ///  // Copy a node
 		  ///  OrigGraph::Node on;
 		  ///  NewGraph::Node nn;
 		  ///  cg.node(on, nn);
 		  ///  // Execute copying
 		  ///  cg.run();
 		  ///\endcode
 		  template <typename From, typename To>
 		  class GraphCopy {
 		  private:
 		    typedef typename From::Node Node;
 		    typedef typename From::NodeIt NodeIt;
 		    typedef typename From::Arc Arc;
 		    typedef typename From::ArcIt ArcIt;
 		    typedef typename From::Edge Edge;
 		    typedef typename From::EdgeIt EdgeIt;
 		    typedef typename To::Node TNode;
 		    typedef typename To::Arc TArc;
 		    typedef typename To::Edge TEdge;
 		    typedef typename From::template NodeMap<TNode> NodeRefMap;
 		    typedef typename From::template EdgeMap<TEdge> EdgeRefMap;
 		    struct ArcRefMap {
 		      ArcRefMap(const From& from, const To& to,
 		                const EdgeRefMap& edge_ref, const NodeRefMap& node_ref)
 		        : _from(from), _to(to),
 		          _edge_ref(edge_ref), _node_ref(node_ref) {}
 		      typedef typename From::Arc Key;
 		      typedef typename To::Arc Value;
 		      Value operator[](const Key& key) const {
 		        bool forward = _from.u(key) != _from.v(key) ?
 		          _node_ref[_from.source(key)] ==
 		          _to.source(_to.direct(_edge_ref[key], true)) :
 		          _from.direction(key);
 		        return _to.direct(_edge_ref[key], forward);
+		      }
 		      const From& _from;
 		      const To& _to;
 		      const EdgeRefMap& _edge_ref;
 		      const NodeRefMap& _node_ref;
 		    };
 		  public:
 		    /// \brief Constructor of GraphCopy.
 		    ///
 		    /// Constructor of GraphCopy for copying the content of the
 		    /// \c from graph into the \c to graph.
 		    GraphCopy(const From& from, To& to)
 		      : _from(from), _to(to) {}
 		    /// \brief Destructor of GraphCopy
 		    ///
 		    /// Destructor of GraphCopy.
 		    ~GraphCopy() {
 		      for (int i = 0; i < int(_node_maps.size()); ++i) {
 		        delete _node_maps[i];
+		      }
 		      for (int i = 0; i < int(_arc_maps.size()); ++i) {
 		        delete _arc_maps[i];
+		      }
 		      for (int i = 0; i < int(_edge_maps.size()); ++i) {
 		        delete _edge_maps[i];
+		      }
+		    }
 		    /// \brief Copy the node references into the given map.
 		    ///
 		    /// This function copies the node references into the given map.
 		    /// The parameter should be a map, whose key type is the Node type of
 		    /// the source graph, while the value type is the Node type of the
 		    /// destination graph.
 		    template <typename NodeRef>
 		    GraphCopy& nodeRef(NodeRef& map) {
 		      _node_maps.push_back(new _core_bits::RefCopy<From, Node,
 		                           NodeRefMap, NodeRef>(map));
 		      return *this;
+		    }
 		    /// \brief Copy the node cross references into the given map.
 		    ///
 		    /// This function copies the node cross references (reverse references)
 		    /// into the given map. The parameter should be a map, whose key type
 		    /// is the Node type of the destination graph, while the value type is
 		    /// the Node type of the source graph.
 		    template <typename NodeCrossRef>
 		    GraphCopy& nodeCrossRef(NodeCrossRef& map) {
 		      _node_maps.push_back(new _core_bits::CrossRefCopy<From, Node,
 		                           NodeRefMap, NodeCrossRef>(map));
 		      return *this;
+		    }
 		    /// \brief Make a copy of the given node map.
 		    ///
 		    /// This function makes a copy of the given node map for the newly
 		    /// created graph.
 		    /// The key type of the new map \c tmap should be the Node type of the
 		    /// destination graph, and the key type of the original map \c map
 		    /// should be the Node type of the source graph.
 		    template <typename FromMap, typename ToMap>
 		    GraphCopy& nodeMap(const FromMap& map, ToMap& tmap) {
 		      _node_maps.push_back(new _core_bits::MapCopy<From, Node,
 		                           NodeRefMap, FromMap, ToMap>(map, tmap));
 		      return *this;
+		    }
 		    /// \brief Make a copy of the given node.
 		    ///
 		    /// This function makes a copy of the given node.
 		    GraphCopy& node(const Node& node, TNode& tnode) {
 		      _node_maps.push_back(new _core_bits::ItemCopy<From, Node,
 		                           NodeRefMap, TNode>(node, tnode));
 		      return *this;
+		    }
 		    /// \brief Copy the arc references into the given map.
 		    ///
 		    /// This function copies the arc references into the given map.
 		    /// The parameter should be a map, whose key type is the Arc type of
 		    /// the source graph, while the value type is the Arc type of the
 		    /// destination graph.
 		    template <typename ArcRef>
 		    GraphCopy& arcRef(ArcRef& map) {
 		      _arc_maps.push_back(new _core_bits::RefCopy<From, Arc,
 		                          ArcRefMap, ArcRef>(map));
 		      return *this;
+		    }
 		    /// \brief Copy the arc cross references into the given map.
 		    ///
 		    /// This function copies the arc cross references (reverse references)
 		    /// into the given map. The parameter should be a map, whose key type
 		    /// is the Arc type of the destination graph, while the value type is
 		    /// the Arc type of the source graph.
 		    template <typename ArcCrossRef>
 		    GraphCopy& arcCrossRef(ArcCrossRef& map) {
 		      _arc_maps.push_back(new _core_bits::CrossRefCopy<From, Arc,
 		                          ArcRefMap, ArcCrossRef>(map));
 		      return *this;
+		    }
 		    /// \brief Make a copy of the given arc map.
 		    ///
 		    /// This function makes a copy of the given arc map for the newly
 		    /// created graph.
 		    /// The key type of the new map \c tmap should be the Arc type of the
 		    /// destination graph, and the key type of the original map \c map
 		    /// should be the Arc type of the source graph.
 		    template <typename FromMap, typename ToMap>
 		    GraphCopy& arcMap(const FromMap& map, ToMap& tmap) {
 		      _arc_maps.push_back(new _core_bits::MapCopy<From, Arc,
 		                          ArcRefMap, FromMap, ToMap>(map, tmap));
 		      return *this;
+		    }
 		    /// \brief Make a copy of the given arc.
 		    ///
 		    /// This function makes a copy of the given arc.
 		    GraphCopy& arc(const Arc& arc, TArc& tarc) {
 		      _arc_maps.push_back(new _core_bits::ItemCopy<From, Arc,
 		                          ArcRefMap, TArc>(arc, tarc));
 		      return *this;
+		    }
 		    /// \brief Copy the edge references into the given map.
 		    ///
 		    /// This function copies the edge references into the given map.
 		    /// The parameter should be a map, whose key type is the Edge type of
 		    /// the source graph, while the value type is the Edge type of the
 		    /// destination graph.
 		    template <typename EdgeRef>
 		    GraphCopy& edgeRef(EdgeRef& map) {
 		      _edge_maps.push_back(new _core_bits::RefCopy<From, Edge,
 		                           EdgeRefMap, EdgeRef>(map));
 		      return *this;
+		    }
 		    /// \brief Copy the edge cross references into the given map.
 		    ///
 		    /// This function copies the edge cross references (reverse references)
 		    /// into the given map. The parameter should be a map, whose key type
 		    /// is the Edge type of the destination graph, while the value type is
 		    /// the Edge type of the source graph.
 		    template <typename EdgeCrossRef>
 		    GraphCopy& edgeCrossRef(EdgeCrossRef& map) {
 		      _edge_maps.push_back(new _core_bits::CrossRefCopy<From,
 		                           Edge, EdgeRefMap, EdgeCrossRef>(map));
 		      return *this;
+		    }
 		    /// \brief Make a copy of the given edge map.
 		    ///
 		    /// This function makes a copy of the given edge map for the newly
 		    /// created graph.
 		    /// The key type of the new map \c tmap should be the Edge type of the
 		    /// destination graph, and the key type of the original map \c map
 		    /// should be the Edge type of the source graph.
 		    template <typename FromMap, typename ToMap>
 		    GraphCopy& edgeMap(const FromMap& map, ToMap& tmap) {
 		      _edge_maps.push_back(new _core_bits::MapCopy<From, Edge,
 		                           EdgeRefMap, FromMap, ToMap>(map, tmap));
 		      return *this;
+		    }
 		    /// \brief Make a copy of the given edge.
 		    ///
 		    /// This function makes a copy of the given edge.
 		    GraphCopy& edge(const Edge& edge, TEdge& tedge) {
 		      _edge_maps.push_back(new _core_bits::ItemCopy<From, Edge,
 		                           EdgeRefMap, TEdge>(edge, tedge));
 		      return *this;
+		    }
 		    /// \brief Execute copying.
 		    ///
 		    /// This function executes the copying of the graph along with the
 		    /// copying of the assigned data.
 		    void run() {
 		      NodeRefMap nodeRefMap(_from);
 		      EdgeRefMap edgeRefMap(_from);
 		      ArcRefMap arcRefMap(_from, _to, edgeRefMap, nodeRefMap);
 		      _core_bits::GraphCopySelector<To>::
 		        copy(_from, _to, nodeRefMap, edgeRefMap);
 		      for (int i = 0; i < int(_node_maps.size()); ++i) {
 		        _node_maps[i]->copy(_from, nodeRefMap);
+		      }
 		      for (int i = 0; i < int(_edge_maps.size()); ++i) {
 		        _edge_maps[i]->copy(_from, edgeRefMap);
+		      }
 		      for (int i = 0; i < int(_arc_maps.size()); ++i) {
 		        _arc_maps[i]->copy(_from, arcRefMap);
+		      }
+		    }
 		  private:
 		    const From& _from;
 		    To& _to;
 		    std::vector<_core_bits::MapCopyBase<From, Node, NodeRefMap>* >
 		      _node_maps;
 		    std::vector<_core_bits::MapCopyBase<From, Arc, ArcRefMap>* >
 		      _arc_maps;
 		    std::vector<_core_bits::MapCopyBase<From, Edge, EdgeRefMap>* >
 		      _edge_maps;
 		  };
 		  /// \brief Copy a graph to another graph.
 		  ///
 		  /// This function copies a graph to another graph.
 		  /// The complete usage of it is detailed in the GraphCopy class,
 		  /// but a short example shows a basic work:
 		  ///\code
 		  /// graphCopy(src, trg).nodeRef(nr).edgeCrossRef(ecr).run();
 		  ///\endcode
 		  ///
 		  /// After the copy the \c nr map will contain the mapping from the
 		  /// nodes of the \c from graph to the nodes of the \c to graph and
 		  /// \c ecr will contain the mapping from the edges of the \c to graph
 		  /// to the edges of the \c from graph.
 		  ///
 		  /// \see GraphCopy
 		  template <typename From, typename To>
 		  GraphCopy<From, To>
 		  graphCopy(const From& from, To& to) {
 		    return GraphCopy<From, To>(from, to);
+		  }
 		  namespace _core_bits {
 		    template <typename Graph, typename Enable = void>
 		    struct FindArcSelector {
 		      typedef typename Graph::Node Node;
 		      typedef typename Graph::Arc Arc;
 		      static Arc find(const Graph &g, Node u, Node v, Arc e) {
 		        if (e == INVALID) {
 		          g.firstOut(e, u);
 		        } else {
 		          g.nextOut(e);
+		        }
 		        while (e != INVALID && g.target(e) != v) {
 		          g.nextOut(e);
+		        }
 		        return e;
+		      }
 		    };
 		    template <typename Graph>
 		    struct FindArcSelector<
 		      Graph,
 		      typename enable_if<typename Graph::FindArcTag, void>::type>
+		    {
 		      typedef typename Graph::Node Node;
 		      typedef typename Graph::Arc Arc;
 		      static Arc find(const Graph &g, Node u, Node v, Arc prev) {
 		        return g.findArc(u, v, prev);
+		      }
 		    };
+		  }
 		  /// \brief Find an arc between two nodes of a digraph.
 		  ///
 		  /// This function finds an arc from node \c u to node \c v in the
 		  /// digraph \c g.
 		  ///
 		  /// If \c prev is \ref INVALID (this is the default value), then
 		  /// it finds the first arc from \c u to \c v. Otherwise it looks for
 		  /// the next arc from \c u to \c v after \c prev.
 		  /// \return The found arc or \ref INVALID if there is no such an arc.
 		  ///
 		  /// Thus you can iterate through each arc from \c u to \c v as it follows.
 		  ///\code
 		  /// for(Arc e = findArc(g,u,v); e != INVALID; e = findArc(g,u,v,e)) {
 		  ///   ...
 		  /// }
 		  ///\endcode
 		  ///
 		  /// \note \ref ConArcIt provides iterator interface for the same
 		  /// functionality.
 		  ///
 		  ///\sa ConArcIt
 		  ///\sa ArcLookUp, AllArcLookUp, DynArcLookUp
 		  template <typename Graph>
 		  inline typename Graph::Arc
 		  findArc(const Graph &g, typename Graph::Node u, typename Graph::Node v,
 		          typename Graph::Arc prev = INVALID) {
 		    return _core_bits::FindArcSelector<Graph>::find(g, u, v, prev);
+		  }
 		  /// \brief Iterator for iterating on parallel arcs connecting the same nodes.
 		  ///
 		  /// Iterator for iterating on parallel arcs connecting the same nodes. It is
 		  /// a higher level interface for the \ref findArc() function. You can
 		  /// use it the following way:
 		  ///\code
 		  /// for (ConArcIt<Graph> it(g, src, trg); it != INVALID; ++it) {
 		  ///   ...
 		  /// }
 		  ///\endcode
 		  ///
 		  ///\sa findArc()
 		  ///\sa ArcLookUp, AllArcLookUp, DynArcLookUp
 		  template <typename GR>
 		  class ConArcIt : public GR::Arc {
 		    typedef typename GR::Arc Parent;
 		  public:
 		    typedef typename GR::Arc Arc;
 		    typedef typename GR::Node Node;
 		    /// \brief Constructor.
 		    ///
 		    /// Construct a new ConArcIt iterating on the arcs that
 		    /// connects nodes \c u and \c v.
 		    ConArcIt(const GR& g, Node u, Node v) : _graph(g) {
 		      Parent::operator=(findArc(_graph, u, v));
+		    }
 		    /// \brief Constructor.
 		    ///
 		    /// Construct a new ConArcIt that continues the iterating from arc \c a.
 		    ConArcIt(const GR& g, Arc a) : Parent(a), _graph(g) {}
 		    /// \brief Increment operator.
 		    ///
 		    /// It increments the iterator and gives back the next arc.
 		    ConArcIt& operator++() {
 		      Parent::operator=(findArc(_graph, _graph.source(*this),
 		                                _graph.target(*this), *this));
 		      return *this;
+		    }
 		  private:
 		    const GR& _graph;
 		  };
 		  namespace _core_bits {
 		    template <typename Graph, typename Enable = void>
 		    struct FindEdgeSelector {
 		      typedef typename Graph::Node Node;
 		      typedef typename Graph::Edge Edge;
 		      static Edge find(const Graph &g, Node u, Node v, Edge e) {
 		        bool b;
 		        if (u != v) {
 		          if (e == INVALID) {
 		            g.firstInc(e, b, u);
 		          } else {
 		            b = g.u(e) == u;
 		            g.nextInc(e, b);
+		          }
 		          while (e != INVALID && (b ? g.v(e) : g.u(e)) != v) {
 		            g.nextInc(e, b);
+		          }
 		        } else {
 		          if (e == INVALID) {
 		            g.firstInc(e, b, u);
 		          } else {
 		            b = true;
 		            g.nextInc(e, b);
+		          }
 		          while (e != INVALID && (!b || g.v(e) != v)) {
 		            g.nextInc(e, b);
+		          }
+		        }
 		        return e;
+		      }
 		    };
 		    template <typename Graph>
 		    struct FindEdgeSelector<
 		      Graph,
 		      typename enable_if<typename Graph::FindEdgeTag, void>::type>
+		    {
 		      typedef typename Graph::Node Node;
 		      typedef typename Graph::Edge Edge;
 		      static Edge find(const Graph &g, Node u, Node v, Edge prev) {
 		        return g.findEdge(u, v, prev);
+		      }
 		    };
+		  }
 		  /// \brief Find an edge between two nodes of a graph.
 		  ///
 		  /// This function finds an edge from node \c u to node \c v in graph \c g.
 		  /// If node \c u and node \c v is equal then each loop edge
 		  /// will be enumerated once.
 		  ///
 		  /// If \c prev is \ref INVALID (this is the default value), then
 		  /// it finds the first edge from \c u to \c v. Otherwise it looks for
 		  /// the next edge from \c u to \c v after \c prev.
 		  /// \return The found edge or \ref INVALID if there is no such an edge.
 		  ///
 		  /// Thus you can iterate through each edge between \c u and \c v
 		  /// as it follows.
 		  ///\code
 		  /// for(Edge e = findEdge(g,u,v); e != INVALID; e = findEdge(g,u,v,e)) {
 		  ///   ...
 		  /// }
 		  ///\endcode
 		  ///
 		  /// \note \ref ConEdgeIt provides iterator interface for the same
 		  /// functionality.
 		  ///
 		  ///\sa ConEdgeIt
 		  template <typename Graph>
 		  inline typename Graph::Edge
 		  findEdge(const Graph &g, typename Graph::Node u, typename Graph::Node v,
 		            typename Graph::Edge p = INVALID) {
 		    return _core_bits::FindEdgeSelector<Graph>::find(g, u, v, p);
+		  }
 		  /// \brief Iterator for iterating on parallel edges connecting the same nodes.
 		  ///
 		  /// Iterator for iterating on parallel edges connecting the same nodes.
 		  /// It is a higher level interface for the findEdge() function. You can
 		  /// use it the following way:
 		  ///\code
 		  /// for (ConEdgeIt<Graph> it(g, u, v); it != INVALID; ++it) {
 		  ///   ...
 		  /// }
 		  ///\endcode
 		  ///
 		  ///\sa findEdge()
 		  template <typename GR>
 		  class ConEdgeIt : public GR::Edge {
 		    typedef typename GR::Edge Parent;
 		  public:
 		    typedef typename GR::Edge Edge;
 		    typedef typename GR::Node Node;
 		    /// \brief Constructor.
 		    ///
 		    /// Construct a new ConEdgeIt iterating on the edges that
 		    /// connects nodes \c u and \c v.
 		    ConEdgeIt(const GR& g, Node u, Node v) : _graph(g), _u(u), _v(v) {
 		      Parent::operator=(findEdge(_graph, _u, _v));
+		    }
 		    /// \brief Constructor.
 		    ///
 		    /// Construct a new ConEdgeIt that continues iterating from edge \c e.
 		    ConEdgeIt(const GR& g, Edge e) : Parent(e), _graph(g) {}
 		    /// \brief Increment operator.

test/graph_copy_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) 2003-2009
 		 * 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.
+		 *
 		 */
 		#include <lemon/smart_graph.h>
 		#include <lemon/list_graph.h>
 		#include <lemon/lgf_reader.h>
 		#include <lemon/error.h>
 		#include "test_tools.h"
 		using namespace std;
 		using namespace lemon;
 		void digraph_copy_test() {
 		  const int nn = 10;
 		  // Build a digraph
 		  SmartDigraph from;
 		  SmartDigraph::NodeMap<int> fnm(from);
 		  SmartDigraph::ArcMap<int> fam(from);
 		  SmartDigraph::Node fn = INVALID;
 		  SmartDigraph::Arc fa = INVALID;
 		  std::vector<SmartDigraph::Node> fnv;
 		  for (int i = 0; i < nn; ++i) {
 		    SmartDigraph::Node node = from.addNode();
 		    fnv.push_back(node);
 		    fnm[node] = i * i;
 		    if (i == 0) fn = node;
+		  }
 		  for (int i = 0; i < nn; ++i) {
 		    for (int j = 0; j < nn; ++j) {
 		      SmartDigraph::Arc arc = from.addArc(fnv[i], fnv[j]);
 		      fam[arc] = i + j * j;
 		      if (i == 0 && j == 0) fa = arc;
+		    }
+		  }
 		  // Test digraph copy
 		  ListDigraph to;
 		  ListDigraph::NodeMap<int> tnm(to);
 		  ListDigraph::ArcMap<int> tam(to);
 		  ListDigraph::Node tn;
 		  ListDigraph::Arc ta;
 		  SmartDigraph::NodeMap<ListDigraph::Node> nr(from);
 		  SmartDigraph::ArcMap<ListDigraph::Arc> er(from);
 		  ListDigraph::NodeMap<SmartDigraph::Node> ncr(to);
 		  ListDigraph::ArcMap<SmartDigraph::Arc> ecr(to);
 		  digraphCopy(from, to).
 		    nodeMap(fnm, tnm).arcMap(fam, tam).
 		    nodeRef(nr).arcRef(er).
 		    nodeCrossRef(ncr).arcCrossRef(ecr).
 		    node(fn, tn).arc(fa, ta).run();
 		  check(countNodes(from) == countNodes(to), "Wrong copy.");
 		  check(countArcs(from) == countArcs(to), "Wrong copy.");
 		  for (SmartDigraph::NodeIt it(from); it != INVALID; ++it) {
 		    check(ncr[nr[it]] == it, "Wrong copy.");
 		    check(fnm[it] == tnm[nr[it]], "Wrong copy.");
+		  }
 		  for (SmartDigraph::ArcIt it(from); it != INVALID; ++it) {
 		    check(ecr[er[it]] == it, "Wrong copy.");
 		    check(fam[it] == tam[er[it]], "Wrong copy.");
 		    check(nr[from.source(it)] == to.source(er[it]), "Wrong copy.");
 		    check(nr[from.target(it)] == to.target(er[it]), "Wrong copy.");
+		  }
 		  for (ListDigraph::NodeIt it(to); it != INVALID; ++it) {
 		    check(nr[ncr[it]] == it, "Wrong copy.");
+		  }
 		  for (ListDigraph::ArcIt it(to); it != INVALID; ++it) {
 		    check(er[ecr[it]] == it, "Wrong copy.");
+		  }
 		  check(tn == nr[fn], "Wrong copy.");
 		  check(ta == er[fa], "Wrong copy.");
 		  // Test repeated copy
 		  digraphCopy(from, to).run();
 		  check(countNodes(from) == countNodes(to), "Wrong copy.");
 		  check(countArcs(from) == countArcs(to), "Wrong copy.");
+		}
 		void graph_copy_test() {
 		  const int nn = 10;
 		  // Build a graph
 		  SmartGraph from;
 		  SmartGraph::NodeMap<int> fnm(from);
 		  SmartGraph::ArcMap<int> fam(from);
 		  SmartGraph::EdgeMap<int> fem(from);
 		  SmartGraph::Node fn = INVALID;
 		  SmartGraph::Arc fa = INVALID;
 		  SmartGraph::Edge fe = INVALID;
 		  std::vector<SmartGraph::Node> fnv;
 		  for (int i = 0; i < nn; ++i) {
 		    SmartGraph::Node node = from.addNode();
 		    fnv.push_back(node);
 		    fnm[node] = i * i;
 		    if (i == 0) fn = node;
+		  }
 		  for (int i = 0; i < nn; ++i) {
 		    for (int j = 0; j < nn; ++j) {
 		      SmartGraph::Edge edge = from.addEdge(fnv[i], fnv[j]);
 		      fem[edge] = i * i + j * j;
 		      fam[from.direct(edge, true)] = i + j * j;
 		      fam[from.direct(edge, false)] = i * i + j;
 		      if (i == 0 && j == 0) fa = from.direct(edge, true);
 		      if (i == 0 && j == 0) fe = edge;
+		    }
+		  }
 		  // Test graph copy
 		  ListGraph to;
 		  ListGraph::NodeMap<int> tnm(to);
 		  ListGraph::ArcMap<int> tam(to);
 		  ListGraph::EdgeMap<int> tem(to);
 		  ListGraph::Node tn;
 		  ListGraph::Arc ta;
 		  ListGraph::Edge te;
 		  SmartGraph::NodeMap<ListGraph::Node> nr(from);
 		  SmartGraph::ArcMap<ListGraph::Arc> ar(from);
 		  SmartGraph::EdgeMap<ListGraph::Edge> er(from);
 		  ListGraph::NodeMap<SmartGraph::Node> ncr(to);
 		  ListGraph::ArcMap<SmartGraph::Arc> acr(to);
 		  ListGraph::EdgeMap<SmartGraph::Edge> ecr(to);
 		  graphCopy(from, to).
 		    nodeMap(fnm, tnm).arcMap(fam, tam).edgeMap(fem, tem).
 		    nodeRef(nr).arcRef(ar).edgeRef(er).
 		    nodeCrossRef(ncr).arcCrossRef(acr).edgeCrossRef(ecr).
 		    node(fn, tn).arc(fa, ta).edge(fe, te).run();
 		  check(countNodes(from) == countNodes(to), "Wrong copy.");
 		  check(countEdges(from) == countEdges(to), "Wrong copy.");
 		  check(countArcs(from) == countArcs(to), "Wrong copy.");
 		  for (SmartGraph::NodeIt it(from); it != INVALID; ++it) {
 		    check(ncr[nr[it]] == it, "Wrong copy.");
 		    check(fnm[it] == tnm[nr[it]], "Wrong copy.");
+		  }
 		  for (SmartGraph::ArcIt it(from); it != INVALID; ++it) {
 		    check(acr[ar[it]] == it, "Wrong copy.");
 		    check(fam[it] == tam[ar[it]], "Wrong copy.");
 		    check(nr[from.source(it)] == to.source(ar[it]), "Wrong copy.");
 		    check(nr[from.target(it)] == to.target(ar[it]), "Wrong copy.");
+		  }
 		  for (SmartGraph::EdgeIt it(from); it != INVALID; ++it) {
 		    check(ecr[er[it]] == it, "Wrong copy.");
 		    check(fem[it] == tem[er[it]], "Wrong copy.");
 		    check(nr[from.u(it)] == to.u(er[it]) || nr[from.u(it)] == to.v(er[it]),
 		          "Wrong copy.");
 		    check(nr[from.v(it)] == to.u(er[it]) || nr[from.v(it)] == to.v(er[it]),
 		          "Wrong copy.");
 		    check((from.u(it) != from.v(it)) == (to.u(er[it]) != to.v(er[it])),
 		          "Wrong copy.");
+		  }
 		  for (ListGraph::NodeIt it(to); it != INVALID; ++it) {
 		    check(nr[ncr[it]] == it, "Wrong copy.");
+		  }
 		  for (ListGraph::ArcIt it(to); it != INVALID; ++it) {
 		    check(ar[acr[it]] == it, "Wrong copy.");
+		  }
 		  for (ListGraph::EdgeIt it(to); it != INVALID; ++it) {
 		    check(er[ecr[it]] == it, "Wrong copy.");
+		  }
 		  check(tn == nr[fn], "Wrong copy.");
 		  check(ta == ar[fa], "Wrong copy.");
 		  check(te == er[fe], "Wrong copy.");
 		  // Test repeated copy
 		  graphCopy(from, to).run();
 		  check(countNodes(from) == countNodes(to), "Wrong copy.");
 		  check(countEdges(from) == countEdges(to), "Wrong copy.");
 		  check(countArcs(from) == countArcs(to), "Wrong copy.");
+		}
 		int main() {
 		  digraph_copy_test();
 		  graph_copy_test();
 		  return 0;
+		}

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