kicsit takaritottam, es szepitettem es, es maga a csuda, de azer nem
authormarci
Fri, 16 Apr 2004 13:05:08 +0000
changeset 338e8725f30dd98
parent 337 6e1b7efa577f
child 339 768ebc700bae
kicsit takaritottam, es szepitettem es, es maga a csuda, de azer nem
teljesen mer' meg kell csinalni vele dolgokat.
src/work/marci/graph_wrapper.h
     1.1 --- a/src/work/marci/graph_wrapper.h	Fri Apr 16 12:15:17 2004 +0000
     1.2 +++ b/src/work/marci/graph_wrapper.h	Fri Apr 16 13:05:08 2004 +0000
     1.3 @@ -105,7 +105,6 @@
     1.4      };
     1.5      class OutEdgeIt { 
     1.6        friend class GraphWrapper<Graph>;
     1.7 -//      typedef typename Graph::OutEdgeIt GraphOutEdgeIt;
     1.8        typename Graph::OutEdgeIt e;
     1.9      public:
    1.10        OutEdgeIt() { }
    1.11 @@ -117,7 +116,6 @@
    1.12      };
    1.13      class InEdgeIt { 
    1.14        friend class GraphWrapper<Graph>;
    1.15 -//      typedef typename Graph::InEdgeIt GraphInEdgeIt;
    1.16        typename Graph::InEdgeIt e;
    1.17      public:
    1.18        InEdgeIt() { }
    1.19 @@ -130,7 +128,6 @@
    1.20      //typedef typename Graph::SymEdgeIt SymEdgeIt;
    1.21      class EdgeIt { 
    1.22        friend class GraphWrapper<Graph>;
    1.23 -//      typedef typename Graph::EdgeIt GraphEdgeIt;
    1.24        typename Graph::EdgeIt e;
    1.25      public:
    1.26        EdgeIt() { }
    1.27 @@ -152,25 +149,11 @@
    1.28      EdgeIt& first(EdgeIt& i) const { 
    1.29        i=EdgeIt(*this); return i;
    1.30      }
    1.31 -//     template<typename I> I& first(I& i) const {       
    1.32 -//       i=I(*this);
    1.33 -//       return i;
    1.34 -//     }
    1.35 -//     template<typename I, typename P> I& first(I& i, const P& p) const { 
    1.36 -//       i=I(*this, p);
    1.37 -//       return i; 
    1.38 -//     }
    1.39 -    
    1.40 +
    1.41      NodeIt& next(NodeIt& i) const { graph->next(i.n); return i; }
    1.42      OutEdgeIt& next(OutEdgeIt& i) const { graph->next(i.e); return i; }
    1.43      InEdgeIt& next(InEdgeIt& i) const { graph->next(i.e); return i; }
    1.44      EdgeIt& next(EdgeIt& i) const { graph->next(i.e); return i; }    
    1.45 -//    template<typename I> I& next(I &i) const { graph->next(i); return i; }    
    1.46 -//     template< typename It > It first() const { 
    1.47 -//       It e; this->first(e); return e; }
    1.48 -
    1.49 -//     template< typename It > It first(const Node& v) const { 
    1.50 -//       It e; this->first(e, v); return e; }
    1.51  
    1.52      Node head(const Edge& e) const { 
    1.53        return Node(graph->head(static_cast<typename Graph::Edge>(e))); }
    1.54 @@ -181,11 +164,6 @@
    1.55        return graph->valid(static_cast<typename Graph::Node>(n)); }
    1.56      bool valid(const Edge& e) const { 
    1.57        return graph->valid(static_cast<typename Graph::Edge>(e)); }
    1.58 -//    template<typename I> bool valid(const I& i) const { 
    1.59 -//      return graph->valid(i); }
    1.60 -  
    1.61 -    //template<typename I> void setInvalid(const I &i);
    1.62 -    //{ return graph->setInvalid(i); }
    1.63  
    1.64      int nodeNum() const { return graph->nodeNum(); }
    1.65      int edgeNum() const { return graph->edgeNum(); }
    1.66 @@ -194,10 +172,6 @@
    1.67      Node aNode(const InEdgeIt& e) const { return Node(graph->aNode(e.e)); }
    1.68      Node bNode(const OutEdgeIt& e) const { return Node(graph->bNode(e.e)); }
    1.69      Node bNode(const InEdgeIt& e) const { return Node(graph->bNode(e.e)); }
    1.70 -//     template<typename I> Node aNode(const I& e) const { 
    1.71 -//       return Node(graph->aNode(e.e)); }
    1.72 -//     template<typename I> Node bNode(const I& e) const { 
    1.73 -//       return Node(graph->bNode(e.e)); }
    1.74    
    1.75      Node addNode() const { return Node(graph->addNode()); }
    1.76      Edge addEdge(const Node& tail, const Node& head) const { 
    1.77 @@ -205,7 +179,6 @@
    1.78  
    1.79      void erase(const Node& i) const { graph->erase(i); }
    1.80      void erase(const Edge& i) const { graph->erase(i); }
    1.81 -//    template<typename I> void erase(const I& i) const { graph->erase(i); }
    1.82    
    1.83      void clear() const { graph->clear(); }
    1.84      
    1.85 @@ -226,109 +199,65 @@
    1.86      };
    1.87    };
    1.88  
    1.89 +  /// A graph wrapper which reverses the orientation of the edges.
    1.90  
    1.91 -//   template<typename Graph>
    1.92 -//   class RevGraphWrapper
    1.93 -//   {
    1.94 -//   protected:
    1.95 -//     Graph* graph;
    1.96 -  
    1.97 -//   public:
    1.98 -//     typedef Graph ParentGraph;
    1.99 -
   1.100 -//     typedef typename Graph::Node Node;    
   1.101 -//     typedef typename Graph::NodeIt NodeIt;
   1.102 -  
   1.103 -//     typedef typename Graph::Edge Edge;
   1.104 -//     typedef typename Graph::OutEdgeIt InEdgeIt;
   1.105 -//     typedef typename Graph::InEdgeIt OutEdgeIt;
   1.106 -//     //typedef typename Graph::SymEdgeIt SymEdgeIt;
   1.107 -//     typedef typename Graph::EdgeIt EdgeIt;
   1.108 -
   1.109 -//     //RevGraphWrapper() : graph(0) { }
   1.110 -//     RevGraphWrapper(Graph& _graph) : graph(&_graph) { }
   1.111 -
   1.112 -//     void setGraph(Graph& _graph) { graph = &_graph; }
   1.113 -//     Graph& getGraph() const { return (*graph); }
   1.114 -    
   1.115 -//     template<typename I> I& first(I& i) const { return graph->first(i); }
   1.116 -//     template<typename I, typename P> I& first(I& i, const P& p) const { 
   1.117 -//       return graph->first(i, p); }
   1.118 -
   1.119 -//     template<typename I> I& next(I &i) const { return graph->next(i); }    
   1.120 -
   1.121 -//     template< typename It > It first() const { 
   1.122 -//       It e; first(e); return e; }
   1.123 -
   1.124 -//     template< typename It > It first(const Node& v) const { 
   1.125 -//       It e; first(e, v); return e; }
   1.126 -
   1.127 -//     Node head(const Edge& e) const { return graph->tail(e); }
   1.128 -//     Node tail(const Edge& e) const { return graph->head(e); }
   1.129 -  
   1.130 -//     template<typename I> bool valid(const I& i) const 
   1.131 -//       { return graph->valid(i); }
   1.132 -  
   1.133 -//     //template<typename I> void setInvalid(const I &i);
   1.134 -//     //{ return graph->setInvalid(i); }
   1.135 -  
   1.136 -//     template<typename I> Node aNode(const I& e) const { 
   1.137 -//       return graph->aNode(e); }
   1.138 -//     template<typename I> Node bNode(const I& e) const { 
   1.139 -//       return graph->bNode(e); }
   1.140 -
   1.141 -//     Node addNode() const { return graph->addNode(); }
   1.142 -//     Edge addEdge(const Node& tail, const Node& head) const { 
   1.143 -//       return graph->addEdge(tail, head); }
   1.144 -  
   1.145 -//     int nodeNum() const { return graph->nodeNum(); }
   1.146 -//     int edgeNum() const { return graph->edgeNum(); }
   1.147 -  
   1.148 -//     template<typename I> void erase(const I& i) const { graph->erase(i); }
   1.149 -  
   1.150 -//     void clear() const { graph->clear(); }
   1.151 -
   1.152 -//     template<typename T> class NodeMap : public Graph::NodeMap<T> { 
   1.153 -//     public:
   1.154 -//       NodeMap(const RevGraphWrapper<Graph>& _G) : 
   1.155 -// 	Graph::NodeMap<T>(_G.getGraph()) { }
   1.156 -//       NodeMap(const RevGraphWrapper<Graph>& _G, T a) : 
   1.157 -// 	Graph::NodeMap<T>(_G.getGraph(), a) { }
   1.158 -//     };
   1.159 -
   1.160 -//     template<typename T> class EdgeMap : public Graph::EdgeMap<T> { 
   1.161 -//     public:
   1.162 -//       EdgeMap(const RevGraphWrapper<Graph>& _G) : 
   1.163 -// 	Graph::EdgeMap<T>(_G.getGraph()) { }
   1.164 -//       EdgeMap(const RevGraphWrapper<Graph>& _G, T a) : 
   1.165 -// 	Graph::EdgeMap<T>(_G.getGraph(), a) { }
   1.166 -//     };
   1.167 -//   };
   1.168 -
   1.169 -
   1.170 +  /// A graph wrapper which reverses the orientation of the edges.
   1.171    template<typename Graph>
   1.172    class RevGraphWrapper : public GraphWrapper<Graph> {
   1.173    public:
   1.174 +
   1.175 +    RevGraphWrapper(Graph& _graph) : GraphWrapper<Graph>(_graph) { }  
   1.176 +
   1.177      typedef typename GraphWrapper<Graph>::Node Node;
   1.178      typedef typename GraphWrapper<Graph>::Edge Edge;
   1.179 -    //FIXME 
   1.180      //If Graph::OutEdgeIt is not defined
   1.181      //and we do not want to use RevGraphWrapper::InEdgeIt,
   1.182 -    //this won't work, because of typedef
   1.183 -    //OR
   1.184 -    //graphs have to define their non-existing iterators to void
   1.185 -    //Unfortunately all the typedefs are instantiated in templates, 
   1.186 -    //unlike other stuff
   1.187 -    typedef typename GraphWrapper<Graph>::OutEdgeIt InEdgeIt;
   1.188 -    typedef typename GraphWrapper<Graph>::InEdgeIt OutEdgeIt;
   1.189 +    //the typdef techinque does not work.
   1.190 +    //Unfortunately all the typedefs are instantiated in templates.
   1.191 +    //typedef typename GraphWrapper<Graph>::OutEdgeIt InEdgeIt;
   1.192 +    //typedef typename GraphWrapper<Graph>::InEdgeIt OutEdgeIt;
   1.193  
   1.194 -//     RevGraphWrapper() : GraphWrapper<Graph>() { }
   1.195 -    RevGraphWrapper(Graph& _graph) : GraphWrapper<Graph>(_graph) { }  
   1.196 +    class OutEdgeIt { 
   1.197 +      friend class GraphWrapper<Graph>;
   1.198 +      friend class RevGraphWrapper<Graph>;
   1.199 +      typename Graph::OutEdgeIt e;
   1.200 +    public:
   1.201 +      OutEdgeIt() { }
   1.202 +      OutEdgeIt(const typename Graph::OutEdgeIt& _e) : e(_e) { }
   1.203 +      OutEdgeIt(const Invalid& i) : e(i) { }
   1.204 +      OutEdgeIt(const RevGraphWrapper<Graph>& _G, const Node& _n) : 
   1.205 +	e(*(_G.graph), typename Graph::Node(_n)) { }
   1.206 +      operator Edge() const { return Edge(typename Graph::Edge(e)); }
   1.207 +    };
   1.208 +    class InEdgeIt { 
   1.209 +      friend class GraphWrapper<Graph>;
   1.210 +      friend class RevGraphWrapper<Graph>;
   1.211 +      typename Graph::InEdgeIt e;
   1.212 +    public:
   1.213 +      InEdgeIt() { }
   1.214 +      InEdgeIt(const typename Graph::InEdgeIt& _e) : e(_e) { }
   1.215 +      InEdgeIt(const Invalid& i) : e(i) { }
   1.216 +      InEdgeIt(const RevGraphWrapper<Graph>& _G, const Node& _n) : 
   1.217 +	e(*(_G.graph), typename Graph::Node(_n)) { }
   1.218 +      operator Edge() const { return Edge(typename Graph::Edge(e)); }
   1.219 +    };
   1.220  
   1.221 -    Node head(const Edge& e) const 
   1.222 -      { return GraphWrapper<Graph>::tail(e); }
   1.223 -    Node tail(const Edge& e) const 
   1.224 -      { return GraphWrapper<Graph>::head(e); }
   1.225 +    using GraphWrapper<Graph>::first;
   1.226 +    OutEdgeIt& first(OutEdgeIt& i, const Node& p) const { 
   1.227 +      i=OutEdgeIt(*this, p); return i;
   1.228 +    }
   1.229 +    InEdgeIt& first(InEdgeIt& i, const Node& p) const { 
   1.230 +      i=InEdgeIt(*this, p); return i;
   1.231 +    }
   1.232 +
   1.233 +    using GraphWrapper<Graph>::next;
   1.234 +    OutEdgeIt& next(OutEdgeIt& i) const { graph->next(i.e); return i; }
   1.235 +    InEdgeIt& next(InEdgeIt& i) const { graph->next(i.e); return i; }
   1.236 +
   1.237 +    Node aNode(const OutEdgeIt& e) const { return Node(graph->aNode(e.e)); }
   1.238 +    Node aNode(const InEdgeIt& e) const { return Node(graph->aNode(e.e)); }
   1.239 +    Node bNode(const OutEdgeIt& e) const { return Node(graph->bNode(e.e)); }
   1.240 +    Node bNode(const InEdgeIt& e) const { return Node(graph->bNode(e.e)); }
   1.241    };
   1.242  
   1.243    /// Wrapper for hiding nodes and edges from a graph.
   1.244 @@ -344,7 +273,7 @@
   1.245      NodeFilterMap* node_filter_map;
   1.246      EdgeFilterMap* edge_filter_map;
   1.247    public:
   1.248 -//     SubGraphWrapper() : GraphWrapper<Graph>(), filter_map(0) { }
   1.249 +
   1.250      SubGraphWrapper(Graph& _graph, NodeFilterMap& _node_filter_map, 
   1.251  		    EdgeFilterMap& _edge_filter_map) : 
   1.252        GraphWrapper<Graph>(_graph), node_filter_map(&_node_filter_map), 
   1.253 @@ -366,24 +295,10 @@
   1.254        }
   1.255        operator Node() const { return Node(typename Graph::Node(n)); }
   1.256      };
   1.257 -//     class NodeIt : public Graph::NodeIt { 
   1.258 -// //      typedef typename Graph::NodeIt GraphNodeIt;
   1.259 -//     public:
   1.260 -//       NodeIt() { }
   1.261 -//       NodeIt(const typename Graph::NodeIt& n) : Graph::NodeIt(n) { }
   1.262 -//       NodeIt(const Invalid& i) : Graph::NodeIt(i) { }
   1.263 -//       NodeIt(const SubGraphWrapper<Graph, NodeFilterMap, EdgeFilterMap>& _G) : 
   1.264 -// 	Graph::NodeIt(*(_G.graph)) { 
   1.265 -// 	while (_G.graph->valid((*this)/*.GraphNodeIt*/) && 
   1.266 -// 	       !(*(_G.node_filter_map))[(*this)/*.GraphNodeIt*/]) 
   1.267 -// 	  _G.graph->next((*this)/*.GraphNodeIt*/);
   1.268 -//       }
   1.269 -//     };
   1.270      typedef typename GraphWrapper<Graph>::Edge Edge;
   1.271      class OutEdgeIt { 
   1.272        friend class GraphWrapper<Graph>;
   1.273        friend class SubGraphWrapper<Graph, NodeFilterMap, EdgeFilterMap>;
   1.274 -//      typedef typename Graph::OutEdgeIt GraphOutEdgeIt;
   1.275        typename Graph::OutEdgeIt e;
   1.276      public:
   1.277        OutEdgeIt() { }
   1.278 @@ -400,7 +315,6 @@
   1.279      class InEdgeIt { 
   1.280        friend class GraphWrapper<Graph>;
   1.281        friend class SubGraphWrapper<Graph, NodeFilterMap, EdgeFilterMap>;
   1.282 -//      typedef typename Graph::InEdgeIt GraphInEdgeIt;
   1.283        typename Graph::InEdgeIt e;
   1.284      public:
   1.285        InEdgeIt() { }
   1.286 @@ -418,7 +332,6 @@
   1.287      class EdgeIt { 
   1.288        friend class GraphWrapper<Graph>;
   1.289        friend class SubGraphWrapper<Graph, NodeFilterMap, EdgeFilterMap>;
   1.290 -//      typedef typename Graph::EdgeIt GraphEdgeIt;
   1.291        typename Graph::EdgeIt e;
   1.292      public:
   1.293        EdgeIt() { }
   1.294 @@ -431,51 +344,6 @@
   1.295        }
   1.296        operator Edge() const { return Edge(typename Graph::Edge(e)); }
   1.297      };
   1.298 -//       operator Edge() const { return Edge(typename Graph::Edge(e)); }
   1.299 -//     };
   1.300 -//     class OutEdgeIt : public Graph::OutEdgeIt { 
   1.301 -// //      typedef typename Graph::OutEdgeIt GraphOutEdgeIt;
   1.302 -//     public:
   1.303 -//       OutEdgeIt() { }
   1.304 -//       OutEdgeIt(const typename Graph::OutEdgeIt& e) : Graph::OutEdgeIt(e) { }
   1.305 -//       OutEdgeIt(const Invalid& i) : Graph::OutEdgeIt(i) { }
   1.306 -//       OutEdgeIt(const SubGraphWrapper<Graph, NodeFilterMap, EdgeFilterMap>& 
   1.307 -// 		_G, const Node& n) : 
   1.308 -// 	Graph::OutEdgeIt(*(_G.graph), n) { 
   1.309 -// 	while (_G.graph->valid((*this)/*.GraphOutEdgeIt*/) && 
   1.310 -// 	       !(*(_G.edge_filter_map))[(*this)/*.GraphOutEdgeIt*/]) 
   1.311 -// 	  _G.graph->next((*this)/*.GraphOutEdgeIt*/);
   1.312 -//       }
   1.313 -//     };
   1.314 -//     class InEdgeIt : public Graph::InEdgeIt { 
   1.315 -// //      typedef typename Graph::InEdgeIt GraphInEdgeIt;
   1.316 -//     public:
   1.317 -//       InEdgeIt() { }
   1.318 -//       InEdgeIt(const typename Graph::InEdgeIt& e) : Graph::InEdgeIt(e) { }
   1.319 -//       InEdgeIt(const Invalid& i) : Graph::InEdgeIt(i) { }
   1.320 -//       InEdgeIt(const SubGraphWrapper<Graph, NodeFilterMap, EdgeFilterMap>& _G, 
   1.321 -// 	       const Node& n) : 
   1.322 -// 	Graph::InEdgeIt(*(_G.graph), n) { 
   1.323 -// 	while (_G.graph->valid((*this)/*.GraphInEdgeIt*/) && 
   1.324 -// 	       !(*(_G.edge_filter_map))[(*this)/*.GraphInEdgeIt*/]) 
   1.325 -// 	  _G.graph->next((*this)/*.GraphInEdgeIt*/);
   1.326 -//       }
   1.327 -//     };
   1.328 -// //     //typedef typename Graph::SymEdgeIt SymEdgeIt;
   1.329 -//     class EdgeIt : public Graph::EdgeIt { 
   1.330 -// //      typedef typename Graph::EdgeIt GraphEdgeIt;
   1.331 -//     public:
   1.332 -//       EdgeIt() { }
   1.333 -//       EdgeIt(const typename Graph::EdgeIt& e) : Graph::EdgeIt(e) { }
   1.334 -//       EdgeIt(const Invalid& i) : Graph::EdgeIt(i) { }
   1.335 -//       EdgeIt(const SubGraphWrapper<Graph, NodeFilterMap, EdgeFilterMap>& _G) : 
   1.336 -// 	Graph::EdgeIt(*(_G.graph)) { 
   1.337 -// 	while (_G.graph->valid((*this)/*.GraphEdgeIt*/) && 
   1.338 -// 	       !(*(_G.edge_filter_map))[(*this)/*.GraphEdgeIt*/]) 
   1.339 -// 	  _G.graph->next((*this)/*.GraphEdgeIt*/);
   1.340 -//       }
   1.341 -//     };
   1.342 -   
   1.343  
   1.344      NodeIt& first(NodeIt& i) const { 
   1.345        i=NodeIt(*this); return i;
   1.346 @@ -490,19 +358,6 @@
   1.347        i=EdgeIt(*this); return i;
   1.348      }
   1.349      
   1.350 -//     template<typename I> I& first(I& i) const { 
   1.351 -//       graph->first(i); 
   1.352 -//       //while (graph->valid(i) && !filter_map->get(i)) { graph->next(i); }
   1.353 -//       while (graph->valid(i) && !(*edge_filter_map)[i]) { graph->next(i); }
   1.354 -//       return i;
   1.355 -//     }
   1.356 -//     template<typename I, typename P> I& first(I& i, const P& p) const { 
   1.357 -//       graph->first(i, p); 
   1.358 -// //      while (graph->valid(i) && !filter_map->get(i)) { graph->next(i); }
   1.359 -//       while (graph->valid(i) && !(*edge_filter_map)[i]) { graph->next(i); }
   1.360 -//       return i;
   1.361 -//     }
   1.362 -
   1.363      NodeIt& next(NodeIt& i) const {
   1.364        graph->next(i.n); 
   1.365        while (graph->valid(i) && !(*node_filter_map)[i.n]) { graph->next(i.n); }
   1.366 @@ -524,13 +379,6 @@
   1.367        return i;
   1.368      }
   1.369  
   1.370 -//     template<typename I> I& next(I &i) const { 
   1.371 -//       graph->next(i); 
   1.372 -// //      while (graph->valid(i) && !filter_map-get(i)) { graph->next(i); }
   1.373 -//       while (graph->valid(i) && !(*edge_filter_map)[i]) { graph->next(i); }
   1.374 -//       return i;
   1.375 -//     } 
   1.376 -
   1.377      Node aNode(const OutEdgeIt& e) const { return Node(graph->aNode(e.e)); }
   1.378      Node aNode(const InEdgeIt& e) const { return Node(graph->aNode(e.e)); }
   1.379      Node bNode(const OutEdgeIt& e) const { return Node(graph->bNode(e.e)); }
   1.380 @@ -544,201 +392,21 @@
   1.381  
   1.382      bool hidden(const Node& n) const { return (*node_filter_map)[n]; }
   1.383      bool hidden(const Edge& e) const { return (*edge_filter_map)[e]; }
   1.384 -
   1.385 -//     template< typename It > It first() const { 
   1.386 -//       It e; this->first(e); return e; }
   1.387 -    
   1.388 -//     template< typename It > It first(const Node& v) const { 
   1.389 -//       It e; this->first(e, v); return e; }
   1.390    };
   1.391  
   1.392 -//   //Subgraph on the same node-set and partial edge-set
   1.393 -//   template<typename Graph, typename NodeFilterMap, 
   1.394 -// 	   typename EdgeFilterMap>
   1.395 -//   class SubGraphWrapper : public GraphWrapper<Graph> {
   1.396 -//   protected:
   1.397 -//     NodeFilterMap* node_filter_map;
   1.398 -//     EdgeFilterMap* edge_filter_map;
   1.399 -//   public:
   1.400 -// //     SubGraphWrapper() : GraphWrapper<Graph>(), filter_map(0) { }
   1.401 -//     SubGraphWrapper(Graph& _graph, NodeFilterMap& _node_filter_map, 
   1.402 -// 		    EdgeFilterMap& _edge_filter_map) : 
   1.403 -//       GraphWrapper<Graph>(_graph), node_filter_map(&_node_filter_map), 
   1.404 -//       edge_filter_map(&_edge_filter_map) { }  
   1.405 +  /// A wrapper for getting an undirected graph by forgetting the orientation of a directed one.
   1.406  
   1.407 -
   1.408 -//     typedef typename Graph::Node Node;
   1.409 -//     class NodeIt : public Graph::NodeIt { 
   1.410 -// //      typedef typename Graph::NodeIt GraphNodeIt;
   1.411 -//     public:
   1.412 -//       NodeIt() { }
   1.413 -//       NodeIt(const typename Graph::NodeIt& n) : Graph::NodeIt(n) { }
   1.414 -//       NodeIt(const Invalid& i) : Graph::NodeIt(i) { }
   1.415 -//       NodeIt(const SubGraphWrapper<Graph, NodeFilterMap, EdgeFilterMap>& _G) : 
   1.416 -// 	Graph::NodeIt(*(_G.graph)) { 
   1.417 -// 	while (_G.graph->valid((*this)/*.GraphNodeIt*/) && 
   1.418 -// 	       !(*(_G.node_filter_map))[(*this)/*.GraphNodeIt*/]) 
   1.419 -// 	  _G.graph->next((*this)/*.GraphNodeIt*/);
   1.420 -//       }
   1.421 -//     };
   1.422 -//     typedef typename Graph::Edge Edge;
   1.423 -//     class OutEdgeIt : public Graph::OutEdgeIt { 
   1.424 -// //      typedef typename Graph::OutEdgeIt GraphOutEdgeIt;
   1.425 -//     public:
   1.426 -//       OutEdgeIt() { }
   1.427 -//       OutEdgeIt(const typename Graph::OutEdgeIt& e) : Graph::OutEdgeIt(e) { }
   1.428 -//       OutEdgeIt(const Invalid& i) : Graph::OutEdgeIt(i) { }
   1.429 -//       OutEdgeIt(const SubGraphWrapper<Graph, NodeFilterMap, EdgeFilterMap>& 
   1.430 -// 		_G, const Node& n) : 
   1.431 -// 	Graph::OutEdgeIt(*(_G.graph), n) { 
   1.432 -// 	while (_G.graph->valid((*this)/*.GraphOutEdgeIt*/) && 
   1.433 -// 	       !(*(_G.edge_filter_map))[(*this)/*.GraphOutEdgeIt*/]) 
   1.434 -// 	  _G.graph->next((*this)/*.GraphOutEdgeIt*/);
   1.435 -//       }
   1.436 -//     };
   1.437 -//     class InEdgeIt : public Graph::InEdgeIt { 
   1.438 -// //      typedef typename Graph::InEdgeIt GraphInEdgeIt;
   1.439 -//     public:
   1.440 -//       InEdgeIt() { }
   1.441 -//       InEdgeIt(const typename Graph::InEdgeIt& e) : Graph::InEdgeIt(e) { }
   1.442 -//       InEdgeIt(const Invalid& i) : Graph::InEdgeIt(i) { }
   1.443 -//       InEdgeIt(const SubGraphWrapper<Graph, NodeFilterMap, EdgeFilterMap>& _G, 
   1.444 -// 	       const Node& n) : 
   1.445 -// 	Graph::InEdgeIt(*(_G.graph), n) { 
   1.446 -// 	while (_G.graph->valid((*this)/*.GraphInEdgeIt*/) && 
   1.447 -// 	       !(*(_G.edge_filter_map))[(*this)/*.GraphInEdgeIt*/]) 
   1.448 -// 	  _G.graph->next((*this)/*.GraphInEdgeIt*/);
   1.449 -//       }
   1.450 -//     };
   1.451 -// //     //typedef typename Graph::SymEdgeIt SymEdgeIt;
   1.452 -//     class EdgeIt : public Graph::EdgeIt { 
   1.453 -// //      typedef typename Graph::EdgeIt GraphEdgeIt;
   1.454 -//     public:
   1.455 -//       EdgeIt() { }
   1.456 -//       EdgeIt(const typename Graph::EdgeIt& e) : Graph::EdgeIt(e) { }
   1.457 -//       EdgeIt(const Invalid& i) : Graph::EdgeIt(i) { }
   1.458 -//       EdgeIt(const SubGraphWrapper<Graph, NodeFilterMap, EdgeFilterMap>& _G) : 
   1.459 -// 	Graph::EdgeIt(*(_G.graph)) { 
   1.460 -// 	while (_G.graph->valid((*this)/*.GraphEdgeIt*/) && 
   1.461 -// 	       !(*(_G.edge_filter_map))[(*this)/*.GraphEdgeIt*/]) 
   1.462 -// 	  _G.graph->next((*this)/*.GraphEdgeIt*/);
   1.463 -//       }
   1.464 -//     };
   1.465 -   
   1.466 -//     NodeIt& first(NodeIt& i) const {
   1.467 -//       i=NodeIt(*this);
   1.468 -//       return i;
   1.469 -//     }
   1.470 -//     OutEdgeIt& first(OutEdgeIt& i, const Node& n) const {
   1.471 -//       i=OutEdgeIt(*this, n);
   1.472 -//       return i;
   1.473 -//     }
   1.474 -//     InEdgeIt& first(InEdgeIt& i, const Node& n) const {
   1.475 -//       i=InEdgeIt(*this, n);
   1.476 -//       return i;
   1.477 -//     }
   1.478 -//     EdgeIt& first(EdgeIt& i) const {
   1.479 -//       i=EdgeIt(*this);
   1.480 -//       return i;
   1.481 -//     }
   1.482 -    
   1.483 -// //     template<typename I> I& first(I& i) const { 
   1.484 -// //       graph->first(i); 
   1.485 -// //       //while (graph->valid(i) && !filter_map->get(i)) { graph->next(i); }
   1.486 -// //       while (graph->valid(i) && !(*edge_filter_map)[i]) { graph->next(i); }
   1.487 -// //       return i;
   1.488 -// //     }
   1.489 -// //     template<typename I, typename P> I& first(I& i, const P& p) const { 
   1.490 -// //       graph->first(i, p); 
   1.491 -// // //      while (graph->valid(i) && !filter_map->get(i)) { graph->next(i); }
   1.492 -// //       while (graph->valid(i) && !(*edge_filter_map)[i]) { graph->next(i); }
   1.493 -// //       return i;
   1.494 -// //     }
   1.495 -
   1.496 -//     NodeIt& next(NodeIt& i) const {
   1.497 -//       graph->next(i); 
   1.498 -//       while (graph->valid(i) && !(*node_filter_map)[i]) { graph->next(i); }
   1.499 -//       return i;
   1.500 -//     }
   1.501 -//     OutEdgeIt& next(OutEdgeIt& i) const {
   1.502 -//       graph->next(i); 
   1.503 -//       while (graph->valid(i) && !(*edge_filter_map)[i]) { graph->next(i); }
   1.504 -//       return i;
   1.505 -//     }
   1.506 -//     InEdgeIt& next(InEdgeIt& i) const {
   1.507 -//       graph->next(i); 
   1.508 -//       while (graph->valid(i) && !(*edge_filter_map)[i]) { graph->next(i); }
   1.509 -//       return i;
   1.510 -//     }
   1.511 -//     EdgeIt& next(EdgeIt& i) const {
   1.512 -//       graph->next(i); 
   1.513 -//       while (graph->valid(i) && !(*edge_filter_map)[i]) { graph->next(i); }
   1.514 -//       return i;
   1.515 -//     }
   1.516 -
   1.517 -// //     template<typename I> I& next(I &i) const { 
   1.518 -// //       graph->next(i); 
   1.519 -// // //      while (graph->valid(i) && !filter_map-get(i)) { graph->next(i); }
   1.520 -// //       while (graph->valid(i) && !(*edge_filter_map)[i]) { graph->next(i); }
   1.521 -// //       return i;
   1.522 -// //     }
   1.523 -    
   1.524 -//     template< typename It > It first() const { 
   1.525 -//       It e; this->first(e); return e; }
   1.526 -    
   1.527 -//     template< typename It > It first(const Node& v) const { 
   1.528 -//       It e; this->first(e, v); return e; }
   1.529 -//   };
   1.530 -
   1.531 +  /// A wrapper for getting an undirected graph by forgetting the orientation of a directed one.
   1.532    template<typename Graph>
   1.533    class UndirGraphWrapper : public GraphWrapper<Graph> {
   1.534 -//  protected:
   1.535 -//    typedef typename Graph::Edge GraphEdge;
   1.536 -//    typedef typename Graph::OutEdgeIt GraphOutEdgeIt;
   1.537 -//    typedef typename Graph::InEdgeIt GraphInEdgeIt;    
   1.538    public:
   1.539      typedef typename GraphWrapper<Graph>::Node Node;
   1.540      typedef typename GraphWrapper<Graph>::NodeIt NodeIt;
   1.541      typedef typename GraphWrapper<Graph>::Edge Edge;
   1.542      typedef typename GraphWrapper<Graph>::EdgeIt EdgeIt;
   1.543  
   1.544 -//     UndirGraphWrapper() : GraphWrapper<Graph>() { }
   1.545      UndirGraphWrapper(Graph& _graph) : GraphWrapper<Graph>(_graph) { }  
   1.546  
   1.547 -    
   1.548 -//     class Edge {
   1.549 -//       friend class UndirGraphWrapper<Graph>;
   1.550 -//     protected:
   1.551 -//       bool out_or_in; //true iff out
   1.552 -//       GraphOutEdgeIt out;
   1.553 -//       GraphInEdgeIt in;
   1.554 -//     public:
   1.555 -//       Edge() : out_or_in(), out(), in() { }
   1.556 -//       Edge(const Invalid& i) : out_or_in(false), out(), in(i) { }
   1.557 -//       operator GraphEdge() const {
   1.558 -// 	if (out_or_in) return(out); else return(in);
   1.559 -//       }
   1.560 -// //FIXME
   1.561 -// //2 edges are equal if they "refer" to the same physical edge 
   1.562 -// //is it good?
   1.563 -//       friend bool operator==(const Edge& u, const Edge& v) { 
   1.564 -// 	if (v.out_or_in) 
   1.565 -// 	  if (u.out_or_in) return (u.out==v.out); else return (u.out==v.in);
   1.566 -// 	//return (u.out_or_in && u.out==v.out);
   1.567 -// 	else
   1.568 -// 	  if (u.out_or_in) return (u.out==v.in); else return (u.in==v.in);
   1.569 -// 	//return (!u.out_or_in && u.in==v.in);
   1.570 -//       } 
   1.571 -//       friend bool operator!=(const Edge& u, const Edge& v) { 
   1.572 -// 	if (v.out_or_in) 
   1.573 -// 	  if (u.out_or_in) return (u.out!=v.out); else return (u.out!=v.in);
   1.574 -// 	//return (!u.out_or_in || u.out!=v.out);
   1.575 -// 	else
   1.576 -// 	  if (u.out_or_in) return (u.out!=v.in); else return (u.in!=v.in);
   1.577 -// 	//return (u.out_or_in || u.in!=v.in);
   1.578 -//       } 
   1.579 -//     };
   1.580 -
   1.581      class OutEdgeIt {
   1.582        friend class UndirGraphWrapper<Graph>;
   1.583        bool out_or_in; //true iff out
   1.584 @@ -755,44 +423,14 @@
   1.585  	if (out_or_in) return Edge(out); else return Edge(in); 
   1.586        }
   1.587      };
   1.588 -//     class OutEdgeIt : public Edge {
   1.589 -//       friend class UndirGraphWrapper<Graph>;
   1.590 -//     public:
   1.591 -//       OutEdgeIt() : Edge() { }
   1.592 -//       OutEdgeIt(const Invalid& i) : Edge(i) { }
   1.593 -//       OutEdgeIt(const UndirGraphWrapper<Graph>& _G, const Node& n) 
   1.594 -// 	: Edge() { 
   1.595 -// 	out_or_in=true; _G.graph->first(out, n);
   1.596 -// 	if (!(_G.graph->valid(out))) { out_or_in=false; _G.graph->first(in, n);	}
   1.597 -//       }
   1.598 -//     };
   1.599  
   1.600  //FIXME InEdgeIt
   1.601      typedef OutEdgeIt InEdgeIt; 
   1.602  
   1.603 -//     class EdgeIt : public Edge {
   1.604 -//       friend class UndirGraphWrapper<Graph>;
   1.605 -//     protected:
   1.606 -//       NodeIt v;
   1.607 -//     public:
   1.608 -//       EdgeIt() : Edge() { }
   1.609 -//       EdgeIt(const Invalid& i) : Edge(i) { }
   1.610 -//       EdgeIt(const UndirGraphWrapper<Graph>& _G) 
   1.611 -// 	: Edge() { 
   1.612 -// 	out_or_in=true;
   1.613 -// 	//Node v;
   1.614 -// 	_G.first(v);
   1.615 -// 	if (_G.valid(v)) _G.graph->first(out); else out=INVALID;
   1.616 -// 	while (_G.valid(v) && !_G.graph->valid(out)) { 
   1.617 -// 	  _G.graph->next(v); 
   1.618 -// 	  if (_G.valid(v)) _G.graph->first(out); 
   1.619 -// 	}
   1.620 -//       }
   1.621 -//     };
   1.622 -
   1.623 -    NodeIt& first(NodeIt& i) const { 
   1.624 -      i=NodeIt(*this); return i;
   1.625 -    }
   1.626 +    using GraphWrapper<Graph>::first;
   1.627 +//     NodeIt& first(NodeIt& i) const { 
   1.628 +//       i=NodeIt(*this); return i;
   1.629 +//     }
   1.630      OutEdgeIt& first(OutEdgeIt& i, const Node& p) const { 
   1.631        i=OutEdgeIt(*this, p); return i;
   1.632      }
   1.633 @@ -800,18 +438,15 @@
   1.634  //     InEdgeIt& first(InEdgeIt& i, const Node& p) const { 
   1.635  //       i=InEdgeIt(*this, p); return i;
   1.636  //     }
   1.637 -    EdgeIt& first(EdgeIt& i) const { 
   1.638 -      i=EdgeIt(*this); return i;
   1.639 -    }
   1.640 +//     EdgeIt& first(EdgeIt& i) const { 
   1.641 +//       i=EdgeIt(*this); return i;
   1.642 +//     }
   1.643  
   1.644 -//     template<typename I> I& first(I& i) const { graph->first(i); return i; }
   1.645 -//     template<typename I, typename P> I& first(I& i, const P& p) const { 
   1.646 -//       graph->first(i, p); return i; }
   1.647 -
   1.648 -    NodeIt& next(NodeIt& n) const {
   1.649 -      GraphWrapper<Graph>::next(n);
   1.650 -      return n;
   1.651 -    }
   1.652 +    using GraphWrapper<Graph>::next;
   1.653 +//     NodeIt& next(NodeIt& n) const {
   1.654 +//       GraphWrapper<Graph>::next(n);
   1.655 +//       return n;
   1.656 +//     }
   1.657      OutEdgeIt& next(OutEdgeIt& e) const {
   1.658        if (e.out_or_in) {
   1.659  	typename Graph::Node n=graph->tail(e.out);
   1.660 @@ -823,148 +458,25 @@
   1.661        return e;
   1.662      }
   1.663      //FIXME InEdgeIt
   1.664 -    EdgeIt& next(EdgeIt& e) const {
   1.665 -      GraphWrapper<Graph>::next(n);
   1.666 -//      graph->next(e.e);
   1.667 -      return e;
   1.668 -    }
   1.669 -
   1.670 -//    template<typename I> I& next(I &i) const { graph->next(i); return i; }    
   1.671 -//     template< typename It > It first() const { 
   1.672 -//       It e; this->first(e); return e; }
   1.673 -
   1.674 -//     template< typename It > It first(const Node& v) const { 
   1.675 -//       It e; this->first(e, v); return e; }
   1.676 -
   1.677 -//    Node head(const Edge& e) const { return gw.head(e); }
   1.678 -//    Node tail(const Edge& e) const { return gw.tail(e); }
   1.679 -
   1.680 -//    template<typename I> bool valid(const I& i) const 
   1.681 -//      { return gw.valid(i); }
   1.682 -  
   1.683 -//    int nodeNum() const { return gw.nodeNum(); }
   1.684 -//    int edgeNum() const { return gw.edgeNum(); }
   1.685 -  
   1.686 -//     template<typename I> Node aNode(const I& e) const { 
   1.687 -//       return graph->aNode(e); }
   1.688 -//     template<typename I> Node bNode(const I& e) const { 
   1.689 -//       return graph->bNode(e); }
   1.690 +//     EdgeIt& next(EdgeIt& e) const {
   1.691 +//       GraphWrapper<Graph>::next(n);
   1.692 +// //      graph->next(e.e);
   1.693 +//       return e;
   1.694 +//     }
   1.695  
   1.696      Node aNode(const OutEdgeIt& e) const { 
   1.697        if (e.out_or_in) return graph->tail(e); else return graph->head(e); }
   1.698      Node bNode(const OutEdgeIt& e) const { 
   1.699        if (e.out_or_in) return graph->head(e); else return graph->tail(e); }
   1.700 +  };
   1.701    
   1.702 -//    Node addNode() const { return gw.addNode(); }
   1.703 +  /// A wrapper for composing the residual graph for directed flow and circulation problems.
   1.704  
   1.705 -// FIXME: ez igy nem jo, mert nem
   1.706 -//    Edge addEdge(const Node& tail, const Node& head) const { 
   1.707 -//      return graph->addEdge(tail, head); }
   1.708 -  
   1.709 -//    template<typename I> void erase(const I& i) const { gw.erase(i); }
   1.710 -  
   1.711 -//    void clear() const { gw.clear(); }
   1.712 -    
   1.713 -//     template<typename T> class NodeMap : public Graph::NodeMap<T> { 
   1.714 -//     public:
   1.715 -//       NodeMap(const UndirGraphWrapper<Graph>& _G) : 
   1.716 -// 	Graph::NodeMap<T>(_G.gw) { }
   1.717 -//       NodeMap(const UndirGraphWrapper<Graph>& _G, T a) : 
   1.718 -// 	Graph::NodeMap<T>(_G.gw, a) { }
   1.719 -//     };
   1.720 -
   1.721 -//     template<typename T> class EdgeMap : 
   1.722 -//       public GraphWrapperSkeleton<Graph>::EdgeMap<T> { 
   1.723 -//     public:
   1.724 -//       EdgeMap(const UndirGraphWrapper<Graph>& _G) : 
   1.725 -// 	GraphWrapperSkeleton<Graph>::EdgeMap<T>(_G.gw) { }
   1.726 -//       EdgeMap(const UndirGraphWrapper<Graph>& _G, T a) : 
   1.727 -// 	Graph::EdgeMap<T>(_G.gw, a) { }
   1.728 -//     };
   1.729 -   };
   1.730 -
   1.731 -
   1.732 -
   1.733 -
   1.734 -
   1.735 -//   template<typename Graph>
   1.736 -//   class SymGraphWrapper
   1.737 -//   {
   1.738 -//     Graph* graph;
   1.739 -  
   1.740 -//   public:
   1.741 -//     typedef Graph ParentGraph;
   1.742 -
   1.743 -//     typedef typename Graph::Node Node;
   1.744 -//     typedef typename Graph::Edge Edge;
   1.745 -  
   1.746 -//     typedef typename Graph::NodeIt NodeIt;
   1.747 -    
   1.748 -//     //FIXME tag-ekkel megcsinalni, hogy abbol csinaljon
   1.749 -//     //iranyitatlant, ami van
   1.750 -//     //mert csak 1 dolgot lehet be typedef-elni
   1.751 -//     typedef typename Graph::OutEdgeIt SymEdgeIt;
   1.752 -//     //typedef typename Graph::InEdgeIt SymEdgeIt;
   1.753 -//     //typedef typename Graph::SymEdgeIt SymEdgeIt;
   1.754 -//     typedef typename Graph::EdgeIt EdgeIt;
   1.755 -
   1.756 -//     int nodeNum() const { return graph->nodeNum(); }
   1.757 -//     int edgeNum() const { return graph->edgeNum(); }
   1.758 -    
   1.759 -//     template<typename I> I& first(I& i) const { return graph->first(i); }
   1.760 -//     template<typename I, typename P> I& first(I& i, const P& p) const { 
   1.761 -//       return graph->first(i, p); }
   1.762 -//     //template<typename I> I next(const I i); { return graph->goNext(i); }
   1.763 -//     //template<typename I> I &goNext(I &i); { return graph->goNext(i); }
   1.764 -
   1.765 -//     template< typename It > It first() const { 
   1.766 -//       It e; first(e); return e; }
   1.767 -
   1.768 -//     template< typename It > It first(Node v) const { 
   1.769 -//       It e; first(e, v); return e; }
   1.770 -
   1.771 -//     Node head(const Edge& e) const { return graph->head(e); }
   1.772 -//     Node tail(const Edge& e) const { return graph->tail(e); }
   1.773 -  
   1.774 -//     template<typename I> Node aNode(const I& e) const { 
   1.775 -//       return graph->aNode(e); }
   1.776 -//     template<typename I> Node bNode(const I& e) const { 
   1.777 -//       return graph->bNode(e); }
   1.778 -  
   1.779 -//     //template<typename I> bool valid(const I i);
   1.780 -//     //{ return graph->valid(i); }
   1.781 -  
   1.782 -//     //template<typename I> void setInvalid(const I &i);
   1.783 -//     //{ return graph->setInvalid(i); }
   1.784 -  
   1.785 -//     Node addNode() { return graph->addNode(); }
   1.786 -//     Edge addEdge(const Node& tail, const Node& head) { 
   1.787 -//       return graph->addEdge(tail, head); }
   1.788 -  
   1.789 -//     template<typename I> void erase(const I& i) { graph->erase(i); }
   1.790 -  
   1.791 -//     void clear() { graph->clear(); }
   1.792 -  
   1.793 -//     template<typename T> class NodeMap : public Graph::NodeMap<T> { };
   1.794 -//     template<typename T> class EdgeMap : public Graph::EdgeMap<T> { };
   1.795 -  
   1.796 -//     void setGraph(Graph& _graph) { graph = &_graph; }
   1.797 -//     Graph& getGraph() { return (*graph); }
   1.798 -
   1.799 -//     //SymGraphWrapper() : graph(0) { }
   1.800 -//     SymGraphWrapper(Graph& _graph) : graph(&_graph) { }
   1.801 -//   };
   1.802 -
   1.803 -
   1.804 -  
   1.805 -
   1.806 +  /// A wrapper for composing the residual graph for directed flow and circulation problems.
   1.807    template<typename Graph, typename Number, 
   1.808  	   typename CapacityMap, typename FlowMap>
   1.809    class ResGraphWrapper : public GraphWrapper<Graph> {
   1.810    protected:
   1.811 -//    typedef typename Graph::OutEdgeIt GraphOutEdgeIt;
   1.812 -//    typedef typename Graph::InEdgeIt GraphInEdgeIt;
   1.813 -//    typedef typename Graph::Edge GraphEdge;
   1.814      const CapacityMap* capacity;
   1.815      FlowMap* flow;
   1.816    public:
   1.817 @@ -1002,33 +514,7 @@
   1.818  		static_cast<typename Graph::Edge>(v));
   1.819        } 
   1.820      };
   1.821 -//     class Edge {
   1.822 -//       friend class ResGraphWrapper<Graph, Number,lksd FlowMap, CapacityMap>;
   1.823 -//     protected:
   1.824 -//       bool out_or_in; //true, iff out
   1.825 -//       GraphOutEdgeIt out;
   1.826 -//       GraphInEdgeIt in;
   1.827 -//     public:
   1.828 -//       Edge() : out_or_in(true) { } 
   1.829 -//       Edge(const Invalid& i) : out_or_in(false), out(), in(i) { }
   1.830 -// //       bool valid() const { 
   1.831 -// // 	return out_or_in && out.valid() || in.valid(); }
   1.832 -//       friend bool operator==(const Edge& u, const Edge& v) { 
   1.833 -// 	if (v.out_or_in) 
   1.834 -// 	  return (u.out_or_in && u.out==v.out);
   1.835 -// 	else
   1.836 -// 	  return (!u.out_or_in && u.in==v.in);
   1.837 -//       } 
   1.838 -//       friend bool operator!=(const Edge& u, const Edge& v) { 
   1.839 -// 	if (v.out_or_in) 
   1.840 -// 	  return (!u.out_or_in || u.out!=v.out);
   1.841 -// 	else
   1.842 -// 	  return (u.out_or_in || u.in!=v.in);
   1.843 -//       } 
   1.844 -//       operator GraphEdge() const {
   1.845 -// 	if (out_or_in) return(out); else return(in);
   1.846 -//       }
   1.847 -//     };
   1.848 +
   1.849      class OutEdgeIt {
   1.850        friend class ResGraphWrapper<Graph, Number, CapacityMap, FlowMap>;
   1.851      protected:
   1.852 @@ -1062,43 +548,6 @@
   1.853  	  return Edge(in, this->forward);
   1.854        }
   1.855      };
   1.856 -//     class OutEdgeIt : public Edge {
   1.857 -//       friend class ResGraphWrapper<Graph, Number, FkklowMap, CapacityMap>;
   1.858 -//     public:
   1.859 -//       OutEdgeIt() { }
   1.860 -//       //FIXME
   1.861 -//       OutEdgeIt(const Edge& e) : Edge(e) { }
   1.862 -//       OutEdgeIt(const Invalid& i) : Edge(i) { }
   1.863 -//       OutEdgeIt(const ResGraphWrapper<Graph, Number, FdfvlowMap, CapacityMap>& resG, Node v) : Edge() { 
   1.864 -// 	resG.graph->first(out, v);
   1.865 -// 	while( resG.graph->valid(out) && !(resG.resCap(out)>0) ) { resG.graph->next(out); }
   1.866 -// 	if (!resG.graph->valid(out)) {
   1.867 -// 	  out_or_in=0;
   1.868 -// 	  resG.graph->first(in, v);
   1.869 -// 	  while( resG.graph->valid(in) && !(resG.resCap(in)>0) ) { resG.graph->next(in); }
   1.870 -// 	}
   1.871 -//       }
   1.872 -//     public:
   1.873 -//       OutEdgeIt& operator++() { 
   1.874 -// 	if (out_or_in) {
   1.875 -// 	  Node v=/*resG->*/G->aNode(out);
   1.876 -// 	  ++out;
   1.877 -// 	  while( out.valid() && !(Edge::resCap()>0) ) { ++out; }
   1.878 -// 	  if (!out.valid()) {
   1.879 -// 	    out_or_in=0;
   1.880 -// 	    G->first(in, v); 
   1.881 -// 	    while( in.valid() && !(Edge::resCap()>0) ) { ++in; }
   1.882 -// 	  }
   1.883 -// 	} else {
   1.884 -// 	  ++in;
   1.885 -// 	  while( in.valid() && !(Edge::resCap()>0) ) { ++in; } 
   1.886 -// 	}
   1.887 -// 	return *this; 
   1.888 -//       }
   1.889 -//    };
   1.890 -
   1.891 -    //FIXME This is just for having InEdgeIt
   1.892 -//    class InEdgeIt : public Edge { };
   1.893  
   1.894      class InEdgeIt {
   1.895        friend class ResGraphWrapper<Graph, Number, CapacityMap, FlowMap>;
   1.896 @@ -1156,70 +605,11 @@
   1.897  	return Edge(e, this->forward);
   1.898        }
   1.899      };
   1.900 -//     class EdgeIt : public Edge {
   1.901 -//       friend class ResGraphWrapper<Graph, Number, FflowMap, CapacityMap>;
   1.902 -//       NodeIt v; 
   1.903 -//     public:
   1.904 -//       EdgeIt() { }
   1.905 -//       //EdgeIt(const EdgeIt& e) : Edge(e), v(e.v) { }
   1.906 -//       EdgeIt(const Invalid& i) : Edge(i) { }
   1.907 -//       EdgeIt(const ResGraphWrapper<Graph, Number, FlfowMap, CapacityMap>& resG) : Edge() { 
   1.908 -// 	resG.graph->first(v);
   1.909 -// 	if (resG.graph->valid(v)) resG.graph->first(out, v); else out=INVALID;
   1.910 -// 	while (resG.graph->valid(out) && !(resG.resCap(out)>0) ) { resG.graph->next(out); }
   1.911 -// 	while (resG.graph->valid(v) && !resG.graph->valid(out)) { 
   1.912 -// 	  resG.graph->next(v); 
   1.913 -// 	  if (resG.graph->valid(v)) resG.graph->first(out, v); 
   1.914 -// 	  while (resG.graph->valid(out) && !(resG.resCap(out)>0) ) { resG.graph->next(out); }
   1.915 -// 	}
   1.916 -// 	if (!resG.graph->valid(out)) {
   1.917 -// 	  out_or_in=0;
   1.918 -// 	  resG.graph->first(v);
   1.919 -// 	  if (resG.graph->valid(v)) resG.graph->first(in, v); else in=INVALID;
   1.920 -// 	  while (resG.graph->valid(in) && !(resG.resCap(in)>0) ) { resG.graph->next(in); }
   1.921 -// 	  while (resG.graph->valid(v) && !resG.graph->valid(in)) { 
   1.922 -// 	    resG.graph->next(v); 
   1.923 -// 	    if (resG.graph->valid(v)) resG.graph->first(in, v); 
   1.924 -// 	    while (resG.graph->valid(in) && !(resG.resCap(in)>0) ) { resG.graph->next(in); }
   1.925 -// 	  }
   1.926 -// 	}
   1.927 -//       }
   1.928 -//       EdgeIt& operator++() { 
   1.929 -// 	if (out_or_in) {
   1.930 -// 	  ++out;
   1.931 -// 	  while (out.valid() && !(Edge::resCap()>0) ) { ++out; }
   1.932 -// 	  while (v.valid() && !out.valid()) { 
   1.933 -// 	    ++v; 
   1.934 -// 	    if (v.valid()) G->first(out, v); 
   1.935 -// 	    while (out.valid() && !(Edge::resCap()>0) ) { ++out; }
   1.936 -// 	  }
   1.937 -// 	  if (!out.valid()) {
   1.938 -// 	    out_or_in=0;
   1.939 -// 	    G->first(v);
   1.940 -// 	    if (v.valid()) G->first(in, v); else in=GraphInEdgeIt();
   1.941 -// 	    while (in.valid() && !(Edge::resCap()>0) ) { ++in; }
   1.942 -// 	    while (v.valid() && !in.valid()) { 
   1.943 -// 	      ++v; 
   1.944 -// 	      if (v.valid()) G->first(in, v); 
   1.945 -// 	      while (in.valid() && !(Edge::resCap()>0) ) { ++in; }
   1.946 -// 	    }  
   1.947 -// 	  }
   1.948 -// 	} else {
   1.949 -// 	  ++in;
   1.950 -// 	  while (in.valid() && !(Edge::resCap()>0) ) { ++in; }
   1.951 -// 	  while (v.valid() && !in.valid()) { 
   1.952 -// 	    ++v; 
   1.953 -// 	    if (v.valid()) G->first(in, v); 
   1.954 -// 	    while (in.valid() && !(Edge::resCap()>0) ) { ++in; }
   1.955 -// 	  }
   1.956 -// 	}
   1.957 -// 	return *this;
   1.958 -//       }
   1.959 -//    };
   1.960  
   1.961 -    NodeIt& first(NodeIt& i) const { 
   1.962 -      i=NodeIt(*this); return i;
   1.963 -    }
   1.964 +    using GraphWrapper<Graph>::first;
   1.965 +//     NodeIt& first(NodeIt& i) const { 
   1.966 +//       i=NodeIt(*this); return i;
   1.967 +//     }
   1.968      OutEdgeIt& first(OutEdgeIt& i, const Node& p) const { 
   1.969        i=OutEdgeIt(*this, p); return i;
   1.970      }
   1.971 @@ -1230,8 +620,9 @@
   1.972      EdgeIt& first(EdgeIt& i) const { 
   1.973        i=EdgeIt(*this); return i;
   1.974      }
   1.975 -   
   1.976 -    NodeIt& next(NodeIt& n) const { GraphWrapper<Graph>::next(n); return n; }
   1.977 +  
   1.978 +    using GraphWrapper<Graph>::next;
   1.979 +//    NodeIt& next(NodeIt& n) const { GraphWrapper<Graph>::next(n); return n; }
   1.980      OutEdgeIt& next(OutEdgeIt& e) const { 
   1.981        if (e.forward) {
   1.982  	Node v=graph->aNode(e.out);
   1.983 @@ -1280,52 +671,6 @@
   1.984        }
   1.985        return e;
   1.986      }
   1.987 -//     EdgeIt& next(EdgeIt& e) const { 
   1.988 -//       if (e.out_or_in) {
   1.989 -// 	graph->next(e.out);
   1.990 -// 	while (graph->valid(e.out) && !(resCap(e.out)>0) ) { graph->next(e.out); }
   1.991 -// 	  while (graph->valid(e.v) && !graph->valid(e.out)) { 
   1.992 -// 	    graph->next(e.v); 
   1.993 -// 	    if (graph->valid(e.v)) graph->first(e.out, e.v); 
   1.994 -// 	    while (graph->valid(e.out) && !(resCap(e.out)>0) ) { graph->next(e.out); }
   1.995 -// 	  }
   1.996 -// 	  if (!graph->valid(e.out)) {
   1.997 -// 	    e.out_or_in=0;
   1.998 -// 	    graph->first(e.v);
   1.999 -// 	    if (graph->valid(e.v)) graph->first(e.in, e.v); else e.in=INVALID;
  1.1000 -// 	    while (graph->valid(e.in) && !(resCap(e.in)>0) ) { graph->next(e.in); }
  1.1001 -// 	    while (graph->valid(e.v) && !graph->valid(e.in)) { 
  1.1002 -// 	      graph->next(e.v); 
  1.1003 -// 	      if (graph->valid(e.v)) graph->first(e.in, e.v); 
  1.1004 -// 	      while (graph->valid(e.in) && !(resCap(e.in)>0) ) { graph->next(e.in); }
  1.1005 -// 	    }  
  1.1006 -// 	  }
  1.1007 -// 	} else {
  1.1008 -// 	  graph->next(e.in);
  1.1009 -// 	  while (graph->valid(e.in) && !(resCap(e.in)>0) ) { graph->next(e.in); }
  1.1010 -// 	  while (graph->valid(e.v) && !graph->valid(e.in)) { 
  1.1011 -// 	    graph->next(e.v); 
  1.1012 -// 	    if (graph->valid(e.v)) graph->first(e.in, e.v); 
  1.1013 -// 	    while (graph->valid(e.in) && !(resCap(e.in)>0) ) { graph->next(e.in); }
  1.1014 -// 	  }
  1.1015 -// 	}
  1.1016 -// 	return e;
  1.1017 -//       }
  1.1018 -    
  1.1019 -
  1.1020 -//     template< typename It >
  1.1021 -//     It first() const { 
  1.1022 -//       It e;
  1.1023 -//       first(e);
  1.1024 -//       return e; 
  1.1025 -//     }
  1.1026 -
  1.1027 -//     template< typename It >
  1.1028 -//     It first(Node v) const { 
  1.1029 -//       It e;
  1.1030 -//       first(e, v);
  1.1031 -//       return e; 
  1.1032 -//     }
  1.1033  
  1.1034      Node tail(Edge e) const { 
  1.1035        return ((e.forward) ? graph->tail(e) : graph->head(e)); }
  1.1036 @@ -1337,8 +682,9 @@
  1.1037      Node bNode(OutEdgeIt e) const { 
  1.1038        return ((e.forward) ? graph->bNode(e.out) : graph->bNode(e.in)); }
  1.1039  
  1.1040 -    int nodeNum() const { return graph->nodeNum(); }
  1.1041 +//    int nodeNum() const { return graph->nodeNum(); }
  1.1042      //FIXME
  1.1043 +    void edgeNum() const { }
  1.1044      //int edgeNum() const { return graph->edgeNum(); }
  1.1045  
  1.1046  
  1.1047 @@ -1378,24 +724,6 @@
  1.1048  //       return ((*flow)[in]); 
  1.1049  //     }
  1.1050  
  1.1051 -//     template<typename T> class NodeMap : public Graph::NodeMap<T> { 
  1.1052 -//     public:
  1.1053 -//       NodeMap(const ResGraphWrapper<Graph, Number, FlovwMap, CapacityMap>& _G) 
  1.1054 -// 	: Graph::NodeMap<T>(_G.gw) { }
  1.1055 -//       NodeMap(const ResGraphWrapper<Graph, Number, FlowvMap, CapacityMap>& _G, 
  1.1056 -// 	      T a) : Graph::NodeMap<T>(_G.gw, a) { }
  1.1057 -//     };
  1.1058 -
  1.1059 -//     template <typename T>
  1.1060 -//     class NodeMap {
  1.1061 -//       typename Graph::NodeMap<T> node_map; 
  1.1062 -//     public:
  1.1063 -//       NodeMap(const ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& _G) : node_map(*(_G.graph)) { }
  1.1064 -//       NodeMap(const ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& _G, T a) : node_map(*(_G.graph), a) { }
  1.1065 -//       void set(Node nit, T a) { node_map.set(nit, a); }
  1.1066 -//       T get(Node nit) const { return node_map.get(nit); }
  1.1067 -//     };
  1.1068 -
  1.1069      template <typename T>
  1.1070      class EdgeMap {
  1.1071        typename Graph::EdgeMap<T> forward_map, backward_map; 
  1.1072 @@ -1423,337 +751,9 @@
  1.1073      };
  1.1074    };
  1.1075  
  1.1076 -  
  1.1077 +  /// ErasingFirstGraphWrapper for blocking flows.
  1.1078  
  1.1079 -//   template<typename Graph, typename Number, typename FlowMap, typename CapacityMap>
  1.1080 -//   class ResGraphWrapper : public GraphWrapper<Graph> {
  1.1081 -//   protected:
  1.1082 -//     typedef typename Graph::OutEdgeIt GraphOutEdgeIt;
  1.1083 -//     typedef typename Graph::InEdgeIt GraphInEdgeIt;
  1.1084 -//     typedef typename Graph::Edge GraphEdge;
  1.1085 -//     FlowMap* flow;
  1.1086 -//     const CapacityMap* capacity;
  1.1087 -//   public:
  1.1088 -
  1.1089 -//     ResGraphWrapper(Graph& _graph, FlowMap& _flow, 
  1.1090 -// 		    const CapacityMap& _capacity) : 
  1.1091 -//       GraphWrapper<Graph>(_graph), flow(&_flow), capacity(&_capacity) { }
  1.1092 -
  1.1093 -//     class Edge; 
  1.1094 -//     class OutEdgeIt; 
  1.1095 -//     friend class Edge; 
  1.1096 -//     friend class OutEdgeIt; 
  1.1097 -
  1.1098 -//     typedef typename GraphWrapper<Graph>::Node Node;
  1.1099 -//     typedef typename GraphWrapper<Graph>::NodeIt NodeIt;
  1.1100 -//     class Edge {
  1.1101 -//       friend class ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>;
  1.1102 -//     protected:
  1.1103 -//       bool out_or_in; //true, iff out
  1.1104 -//       GraphOutEdgeIt out;
  1.1105 -//       GraphInEdgeIt in;
  1.1106 -//     public:
  1.1107 -//       Edge() : out_or_in(true) { } 
  1.1108 -//       Edge(const Invalid& i) : out_or_in(false), out(), in(i) { }
  1.1109 -// //       bool valid() const { 
  1.1110 -// // 	return out_or_in && out.valid() || in.valid(); }
  1.1111 -//       friend bool operator==(const Edge& u, const Edge& v) { 
  1.1112 -// 	if (v.out_or_in) 
  1.1113 -// 	  return (u.out_or_in && u.out==v.out);
  1.1114 -// 	else
  1.1115 -// 	  return (!u.out_or_in && u.in==v.in);
  1.1116 -//       } 
  1.1117 -//       friend bool operator!=(const Edge& u, const Edge& v) { 
  1.1118 -// 	if (v.out_or_in) 
  1.1119 -// 	  return (!u.out_or_in || u.out!=v.out);
  1.1120 -// 	else
  1.1121 -// 	  return (u.out_or_in || u.in!=v.in);
  1.1122 -//       } 
  1.1123 -//       operator GraphEdge() const {
  1.1124 -// 	if (out_or_in) return(out); else return(in);
  1.1125 -//       }
  1.1126 -//     };
  1.1127 -//     class OutEdgeIt : public Edge {
  1.1128 -//       friend class ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>;
  1.1129 -//     public:
  1.1130 -//       OutEdgeIt() { }
  1.1131 -//       //FIXME
  1.1132 -//       OutEdgeIt(const Edge& e) : Edge(e) { }
  1.1133 -//       OutEdgeIt(const Invalid& i) : Edge(i) { }
  1.1134 -//       OutEdgeIt(const ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& resG, Node v) : Edge() { 
  1.1135 -// 	resG.graph->first(out, v);
  1.1136 -// 	while( resG.graph->valid(out) && !(resG.resCap(out)>0) ) { resG.graph->next(out); }
  1.1137 -// 	if (!resG.graph->valid(out)) {
  1.1138 -// 	  out_or_in=0;
  1.1139 -// 	  resG.graph->first(in, v);
  1.1140 -// 	  while( resG.graph->valid(in) && !(resG.resCap(in)>0) ) { resG.graph->next(in); }
  1.1141 -// 	}
  1.1142 -//       }
  1.1143 -// //     public:
  1.1144 -// //       OutEdgeIt& operator++() { 
  1.1145 -// // 	if (out_or_in) {
  1.1146 -// // 	  Node v=/*resG->*/G->aNode(out);
  1.1147 -// // 	  ++out;
  1.1148 -// // 	  while( out.valid() && !(Edge::resCap()>0) ) { ++out; }
  1.1149 -// // 	  if (!out.valid()) {
  1.1150 -// // 	    out_or_in=0;
  1.1151 -// // 	    G->first(in, v); 
  1.1152 -// // 	    while( in.valid() && !(Edge::resCap()>0) ) { ++in; }
  1.1153 -// // 	  }
  1.1154 -// // 	} else {
  1.1155 -// // 	  ++in;
  1.1156 -// // 	  while( in.valid() && !(Edge::resCap()>0) ) { ++in; } 
  1.1157 -// // 	}
  1.1158 -// // 	return *this; 
  1.1159 -// //       }
  1.1160 -//     };
  1.1161 -
  1.1162 -//     //FIXME This is just for having InEdgeIt
  1.1163 -// //    class InEdgeIt : public Edge { };
  1.1164 -
  1.1165 -//     class EdgeIt : public Edge {
  1.1166 -//       friend class ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>;
  1.1167 -//       NodeIt v; 
  1.1168 -//     public:
  1.1169 -//       EdgeIt() { }
  1.1170 -//       //EdgeIt(const EdgeIt& e) : Edge(e), v(e.v) { }
  1.1171 -//       EdgeIt(const Invalid& i) : Edge(i) { }
  1.1172 -//       EdgeIt(const ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& resG) : Edge() { 
  1.1173 -// 	resG.graph->first(v);
  1.1174 -// 	if (resG.graph->valid(v)) resG.graph->first(out, v); else out=INVALID;
  1.1175 -// 	while (resG.graph->valid(out) && !(resG.resCap(out)>0) ) { resG.graph->next(out); }
  1.1176 -// 	while (resG.graph->valid(v) && !resG.graph->valid(out)) { 
  1.1177 -// 	  resG.graph->next(v); 
  1.1178 -// 	  if (resG.graph->valid(v)) resG.graph->first(out, v); 
  1.1179 -// 	  while (resG.graph->valid(out) && !(resG.resCap(out)>0) ) { resG.graph->next(out); }
  1.1180 -// 	}
  1.1181 -// 	if (!resG.graph->valid(out)) {
  1.1182 -// 	  out_or_in=0;
  1.1183 -// 	  resG.graph->first(v);
  1.1184 -// 	  if (resG.graph->valid(v)) resG.graph->first(in, v); else in=INVALID;
  1.1185 -// 	  while (resG.graph->valid(in) && !(resG.resCap(in)>0) ) { resG.graph->next(in); }
  1.1186 -// 	  while (resG.graph->valid(v) && !resG.graph->valid(in)) { 
  1.1187 -// 	    resG.graph->next(v); 
  1.1188 -// 	    if (resG.graph->valid(v)) resG.graph->first(in, v); 
  1.1189 -// 	    while (resG.graph->valid(in) && !(resG.resCap(in)>0) ) { resG.graph->next(in); }
  1.1190 -// 	  }
  1.1191 -// 	}
  1.1192 -//       }
  1.1193 -// //       EdgeIt& operator++() { 
  1.1194 -// // 	if (out_or_in) {
  1.1195 -// // 	  ++out;
  1.1196 -// // 	  while (out.valid() && !(Edge::resCap()>0) ) { ++out; }
  1.1197 -// // 	  while (v.valid() && !out.valid()) { 
  1.1198 -// // 	    ++v; 
  1.1199 -// // 	    if (v.valid()) G->first(out, v); 
  1.1200 -// // 	    while (out.valid() && !(Edge::resCap()>0) ) { ++out; }
  1.1201 -// // 	  }
  1.1202 -// // 	  if (!out.valid()) {
  1.1203 -// // 	    out_or_in=0;
  1.1204 -// // 	    G->first(v);
  1.1205 -// // 	    if (v.valid()) G->first(in, v); else in=GraphInEdgeIt();
  1.1206 -// // 	    while (in.valid() && !(Edge::resCap()>0) ) { ++in; }
  1.1207 -// // 	    while (v.valid() && !in.valid()) { 
  1.1208 -// // 	      ++v; 
  1.1209 -// // 	      if (v.valid()) G->first(in, v); 
  1.1210 -// // 	      while (in.valid() && !(Edge::resCap()>0) ) { ++in; }
  1.1211 -// // 	    }  
  1.1212 -// // 	  }
  1.1213 -// // 	} else {
  1.1214 -// // 	  ++in;
  1.1215 -// // 	  while (in.valid() && !(Edge::resCap()>0) ) { ++in; }
  1.1216 -// // 	  while (v.valid() && !in.valid()) { 
  1.1217 -// // 	    ++v; 
  1.1218 -// // 	    if (v.valid()) G->first(in, v); 
  1.1219 -// // 	    while (in.valid() && !(Edge::resCap()>0) ) { ++in; }
  1.1220 -// // 	  }
  1.1221 -// // 	}
  1.1222 -// // 	return *this;
  1.1223 -// //       }
  1.1224 -//     };
  1.1225 -
  1.1226 -//     NodeIt& first(NodeIt& i) const { 
  1.1227 -//       i=NodeIt(*this); 
  1.1228 -//       return i; 
  1.1229 -//     }
  1.1230 -//     OutEdgeIt& first(OutEdgeIt& i, const Node& p) const { 
  1.1231 -//       i=OutEdgeIt(*this, p);
  1.1232 -//       return i;
  1.1233 -//     }
  1.1234 -//     //FIXME Not yet implemented
  1.1235 -//     //InEdgeIt& first(InEdgeIt& i, const Node& p) const {
  1.1236 -//     //i=InEdgeIt(*this, p);
  1.1237 -//     //  return i;
  1.1238 -//     //}
  1.1239 -//     EdgeIt& first(EdgeIt& e) const { 
  1.1240 -//       e=EdgeIt(*this); 
  1.1241 -//       return e;
  1.1242 -//     }
  1.1243 -   
  1.1244 -//     NodeIt& next(NodeIt& n) const { graph->next(n); return n; }
  1.1245 -//     OutEdgeIt& next(OutEdgeIt& e) const { 
  1.1246 -//       if (e.out_or_in) {
  1.1247 -// 	Node v=graph->aNode(e.out);
  1.1248 -// 	graph->next(e.out);
  1.1249 -// 	while( graph->valid(e.out) && !(resCap(e.out)>0) ) { graph->next(e.out); }
  1.1250 -// 	if (!graph->valid(e.out)) {
  1.1251 -// 	  e.out_or_in=0;
  1.1252 -// 	  graph->first(e.in, v); 
  1.1253 -// 	  while( graph->valid(e.in) && !(resCap(e.in)>0) ) { graph->next(e.in); }
  1.1254 -// 	}
  1.1255 -//       } else {
  1.1256 -// 	graph->next(e.in);
  1.1257 -// 	while( graph->valid(e.in) && !(resCap(e.in)>0) ) { graph->next(e.in); } 
  1.1258 -//       }
  1.1259 -//       return e;
  1.1260 -//     }
  1.1261 -//     //FIXME Not yet implemented
  1.1262 -//     //InEdgeIt& next(InEdgeIt& e) const {
  1.1263 -//     //  return e;
  1.1264 -//     //}
  1.1265 -//     EdgeIt& next(EdgeIt& e) const { 
  1.1266 -//       if (e.out_or_in) {
  1.1267 -// 	graph->next(e.out);
  1.1268 -// 	while (graph->valid(e.out) && !(resCap(e.out)>0) ) { graph->next(e.out); }
  1.1269 -// 	  while (graph->valid(e.v) && !graph->valid(e.out)) { 
  1.1270 -// 	    graph->next(e.v); 
  1.1271 -// 	    if (graph->valid(e.v)) graph->first(e.out, e.v); 
  1.1272 -// 	    while (graph->valid(e.out) && !(resCap(e.out)>0) ) { graph->next(e.out); }
  1.1273 -// 	  }
  1.1274 -// 	  if (!graph->valid(e.out)) {
  1.1275 -// 	    e.out_or_in=0;
  1.1276 -// 	    graph->first(e.v);
  1.1277 -// 	    if (graph->valid(e.v)) graph->first(e.in, e.v); else e.in=INVALID;
  1.1278 -// 	    while (graph->valid(e.in) && !(resCap(e.in)>0) ) { graph->next(e.in); }
  1.1279 -// 	    while (graph->valid(e.v) && !graph->valid(e.in)) { 
  1.1280 -// 	      graph->next(e.v); 
  1.1281 -// 	      if (graph->valid(e.v)) graph->first(e.in, e.v); 
  1.1282 -// 	      while (graph->valid(e.in) && !(resCap(e.in)>0) ) { graph->next(e.in); }
  1.1283 -// 	    }  
  1.1284 -// 	  }
  1.1285 -// 	} else {
  1.1286 -// 	  graph->next(e.in);
  1.1287 -// 	  while (graph->valid(e.in) && !(resCap(e.in)>0) ) { graph->next(e.in); }
  1.1288 -// 	  while (graph->valid(e.v) && !graph->valid(e.in)) { 
  1.1289 -// 	    graph->next(e.v); 
  1.1290 -// 	    if (graph->valid(e.v)) graph->first(e.in, e.v); 
  1.1291 -// 	    while (graph->valid(e.in) && !(resCap(e.in)>0) ) { graph->next(e.in); }
  1.1292 -// 	  }
  1.1293 -// 	}
  1.1294 -// 	return e;
  1.1295 -//       }
  1.1296 -    
  1.1297 -
  1.1298 -//     template< typename It >
  1.1299 -//     It first() const { 
  1.1300 -//       It e;
  1.1301 -//       first(e);
  1.1302 -//       return e; 
  1.1303 -//     }
  1.1304 -
  1.1305 -//     template< typename It >
  1.1306 -//     It first(Node v) const { 
  1.1307 -//       It e;
  1.1308 -//       first(e, v);
  1.1309 -//       return e; 
  1.1310 -//     }
  1.1311 -
  1.1312 -//     Node tail(Edge e) const { 
  1.1313 -//       return ((e.out_or_in) ? graph->aNode(e.out) : graph->aNode(e.in)); }
  1.1314 -//     Node head(Edge e) const { 
  1.1315 -//       return ((e.out_or_in) ? graph->bNode(e.out) : graph->bNode(e.in)); }
  1.1316 -
  1.1317 -//     Node aNode(OutEdgeIt e) const { 
  1.1318 -//       return ((e.out_or_in) ? graph->aNode(e.out) : graph->aNode(e.in)); }
  1.1319 -//     Node bNode(OutEdgeIt e) const { 
  1.1320 -//       return ((e.out_or_in) ? graph->bNode(e.out) : graph->bNode(e.in)); }
  1.1321 -
  1.1322 -//     int nodeNum() const { return graph->nodeNum(); }
  1.1323 -//     //FIXME
  1.1324 -//     //int edgeNum() const { return graph->edgeNum(); }
  1.1325 -
  1.1326 -
  1.1327 -//     int id(Node v) const { return graph->id(v); }
  1.1328 -
  1.1329 -//     bool valid(Node n) const { return graph->valid(n); }
  1.1330 -//     bool valid(Edge e) const { 
  1.1331 -//       return e.out_or_in ? graph->valid(e.out) : graph->valid(e.in); }
  1.1332 -
  1.1333 -//     void augment(const Edge& e, Number a) const {
  1.1334 -//       if (e.out_or_in)  
  1.1335 -// // 	flow->set(e.out, flow->get(e.out)+a);
  1.1336 -// 	flow->set(e.out, (*flow)[e.out]+a);
  1.1337 -//       else  
  1.1338 -// // 	flow->set(e.in, flow->get(e.in)-a);
  1.1339 -// 	flow->set(e.in, (*flow)[e.in]-a);
  1.1340 -//     }
  1.1341 -
  1.1342 -//     Number resCap(const Edge& e) const { 
  1.1343 -//       if (e.out_or_in) 
  1.1344 -// //	return (capacity->get(e.out)-flow->get(e.out)); 
  1.1345 -// 	return ((*capacity)[e.out]-(*flow)[e.out]); 
  1.1346 -//       else 
  1.1347 -// //	return (flow->get(e.in)); 
  1.1348 -// 	return ((*flow)[e.in]); 
  1.1349 -//     }
  1.1350 -
  1.1351 -//     Number resCap(GraphOutEdgeIt out) const { 
  1.1352 -// //      return (capacity->get(out)-flow->get(out)); 
  1.1353 -//       return ((*capacity)[out]-(*flow)[out]); 
  1.1354 -//     }
  1.1355 -    
  1.1356 -//     Number resCap(GraphInEdgeIt in) const { 
  1.1357 -// //      return (flow->get(in)); 
  1.1358 -//       return ((*flow)[in]); 
  1.1359 -//     }
  1.1360 -
  1.1361 -// //     template<typename T> class NodeMap : public Graph::NodeMap<T> { 
  1.1362 -// //     public:
  1.1363 -// //       NodeMap(const ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& _G) 
  1.1364 -// // 	: Graph::NodeMap<T>(_G.gw) { }
  1.1365 -// //       NodeMap(const ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& _G, 
  1.1366 -// // 	      T a) : Graph::NodeMap<T>(_G.gw, a) { }
  1.1367 -// //     };
  1.1368 -
  1.1369 -// //     template <typename T>
  1.1370 -// //     class NodeMap {
  1.1371 -// //       typename Graph::NodeMap<T> node_map; 
  1.1372 -// //     public:
  1.1373 -// //       NodeMap(const ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& _G) : node_map(*(_G.graph)) { }
  1.1374 -// //       NodeMap(const ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& _G, T a) : node_map(*(_G.graph), a) { }
  1.1375 -// //       void set(Node nit, T a) { node_map.set(nit, a); }
  1.1376 -// //       T get(Node nit) const { return node_map.get(nit); }
  1.1377 -// //     };
  1.1378 -
  1.1379 -//     template <typename T>
  1.1380 -//     class EdgeMap {
  1.1381 -//       typename Graph::EdgeMap<T> forward_map, backward_map; 
  1.1382 -//     public:
  1.1383 -//       EdgeMap(const ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& _G) : forward_map(*(_G.graph)), backward_map(*(_G.graph)) { }
  1.1384 -//       EdgeMap(const ResGraphWrapper<Graph, Number, FlowMap, CapacityMap>& _G, T a) : forward_map(*(_G.graph), a), backward_map(*(_G.graph), a) { }
  1.1385 -//       void set(Edge e, T a) { 
  1.1386 -// 	if (e.out_or_in) 
  1.1387 -// 	  forward_map.set(e.out, a); 
  1.1388 -// 	else 
  1.1389 -// 	  backward_map.set(e.in, a); 
  1.1390 -//       }
  1.1391 -//       T operator[](Edge e) const { 
  1.1392 -// 	if (e.out_or_in) 
  1.1393 -// 	  return forward_map[e.out]; 
  1.1394 -// 	else 
  1.1395 -// 	  return backward_map[e.in]; 
  1.1396 -//       }
  1.1397 -// //       T get(Edge e) const { 
  1.1398 -// // 	if (e.out_or_in) 
  1.1399 -// // 	  return forward_map.get(e.out); 
  1.1400 -// // 	else 
  1.1401 -// // 	  return backward_map.get(e.in); 
  1.1402 -// //       }
  1.1403 -//     };
  1.1404 -//   };
  1.1405 -
  1.1406 -
  1.1407 -  //ErasingFirstGraphWrapper for blocking flows
  1.1408 +  /// ErasingFirstGraphWrapper for blocking flows.
  1.1409    template<typename Graph, typename FirstOutEdgesMap>
  1.1410    class ErasingFirstGraphWrapper : public GraphWrapper<Graph> {
  1.1411    protected:
  1.1412 @@ -1764,18 +764,18 @@
  1.1413        GraphWrapper<Graph>(_graph), first_out_edges(&_first_out_edges) { }  
  1.1414  
  1.1415      typedef typename GraphWrapper<Graph>::Node Node;
  1.1416 -    class NodeIt { 
  1.1417 -      friend class GraphWrapper<Graph>;
  1.1418 -      friend class ErasingFirstGraphWrapper<Graph, FirstOutEdgesMap>;
  1.1419 -      typename Graph::NodeIt n;
  1.1420 -     public:
  1.1421 -      NodeIt() { }
  1.1422 -      NodeIt(const typename Graph::NodeIt& _n) : n(_n) { }
  1.1423 -      NodeIt(const Invalid& i) : n(i) { }
  1.1424 -      NodeIt(const ErasingFirstGraphWrapper<Graph, FirstOutEdgesMap>& _G) : 
  1.1425 -	n(*(_G.graph)) { }
  1.1426 -      operator Node() const { return Node(typename Graph::Node(n)); }
  1.1427 -    };
  1.1428 +//     class NodeIt { 
  1.1429 +//       friend class GraphWrapper<Graph>;
  1.1430 +//       friend class ErasingFirstGraphWrapper<Graph, FirstOutEdgesMap>;
  1.1431 +//       typename Graph::NodeIt n;
  1.1432 +//      public:
  1.1433 +//       NodeIt() { }
  1.1434 +//       NodeIt(const typename Graph::NodeIt& _n) : n(_n) { }
  1.1435 +//       NodeIt(const Invalid& i) : n(i) { }
  1.1436 +//       NodeIt(const ErasingFirstGraphWrapper<Graph, FirstOutEdgesMap>& _G) : 
  1.1437 +// 	n(*(_G.graph)) { }
  1.1438 +//       operator Node() const { return Node(typename Graph::Node(n)); }
  1.1439 +//     };
  1.1440      typedef typename GraphWrapper<Graph>::Edge Edge;
  1.1441      class OutEdgeIt { 
  1.1442        friend class GraphWrapper<Graph>;
  1.1443 @@ -1820,9 +820,10 @@
  1.1444        operator Edge() const { return Edge(typename Graph::Edge(e)); }
  1.1445      };
  1.1446  
  1.1447 -    NodeIt& first(NodeIt& i) const { 
  1.1448 -      i=NodeIt(*this); return i;
  1.1449 -    }
  1.1450 +    using GraphWrapper<Graph>::first;
  1.1451 +//     NodeIt& first(NodeIt& i) const { 
  1.1452 +//       i=NodeIt(*this); return i;
  1.1453 +//     }
  1.1454      OutEdgeIt& first(OutEdgeIt& i, const Node& p) const { 
  1.1455        i=OutEdgeIt(*this, p); return i;
  1.1456      }
  1.1457 @@ -1833,21 +834,8 @@
  1.1458        i=EdgeIt(*this); return i;
  1.1459      }
  1.1460  
  1.1461 -//     template<typename I> I& first(I& i) const { 
  1.1462 -//       graph->first(i); 
  1.1463 -//       return i;
  1.1464 -//     }
  1.1465 -//     OutEdgeIt& first(OutEdgeIt& e, const Node& n) const {
  1.1466 -// //      e=first_out_edges->get(n);
  1.1467 -//       e=(*first_out_edges)[n];
  1.1468 -//       return e;
  1.1469 -//     }
  1.1470 -//     template<typename I, typename P> I& first(I& i, const P& p) const { 
  1.1471 -//       graph->first(i, p); 
  1.1472 -//       return i;
  1.1473 -//     }
  1.1474 -    
  1.1475 -    NodeIt& next(NodeIt& i) const { graph->next(i.n); return i; }
  1.1476 +    using GraphWrapper<Graph>::next;
  1.1477 +//    NodeIt& next(NodeIt& i) const { graph->next(i.n); return i; }
  1.1478      OutEdgeIt& next(OutEdgeIt& i) const { graph->next(i.e); return i; }
  1.1479      InEdgeIt& next(InEdgeIt& i) const { graph->next(i.e); return i; }
  1.1480      EdgeIt& next(EdgeIt& i) const { graph->next(i.e); return i; }    
  1.1481 @@ -1857,17 +845,6 @@
  1.1482      Node bNode(const OutEdgeIt& e) const { return Node(graph->bNode(e.e)); }
  1.1483      Node bNode(const InEdgeIt& e) const { return Node(graph->bNode(e.e)); }
  1.1484  
  1.1485 -//     template<typename I> I& next(I &i) const { 
  1.1486 -//       graph->next(i); 
  1.1487 -//       return i;
  1.1488 -//     }
  1.1489 -    
  1.1490 -//     template< typename It > It first() const { 
  1.1491 -//       It e; this->first(e); return e; }
  1.1492 -    
  1.1493 -//     template< typename It > It first(const Node& v) const { 
  1.1494 -//       It e; this->first(e, v); return e; }
  1.1495 -
  1.1496      void erase(const OutEdgeIt& e) const {
  1.1497        OutEdgeIt f=e;
  1.1498        this->next(f);
  1.1499 @@ -1875,268 +852,6 @@
  1.1500      }
  1.1501    };
  1.1502  
  1.1503 -//   //ErasingFirstGraphWrapper for blocking flows
  1.1504 -//   template<typename Graph, typename FirstOutEdgesMap>
  1.1505 -//   class ErasingFirstGraphWrapper : public GraphWrapper<Graph> {
  1.1506 -//   protected:
  1.1507 -//     FirstOutEdgesMap* first_out_edges;
  1.1508 -//   public:
  1.1509 -//     ErasingFirstGraphWrapper(Graph& _graph, 
  1.1510 -// 			     FirstOutEdgesMap& _first_out_edges) : 
  1.1511 -//       GraphWrapper<Graph>(_graph), first_out_edges(&_first_out_edges) { }  
  1.1512 -
  1.1513 -//     typedef typename Graph::Node Node;
  1.1514 -//     class NodeIt : public Graph::NodeIt { 
  1.1515 -//     public:
  1.1516 -//       NodeIt() { }
  1.1517 -//       NodeIt(const typename Graph::NodeIt& n) : Graph::NodeIt(n) { }
  1.1518 -//       NodeIt(const Invalid& i) : Graph::NodeIt(i) { }
  1.1519 -//       NodeIt(const ErasingFirstGraphWrapper<Graph, FirstOutEdgesMap>& _G) : 
  1.1520 -// 	Graph::NodeIt(*(_G.graph)) { }
  1.1521 -//     };
  1.1522 -//     typedef typename Graph::Edge Edge;
  1.1523 -//     class OutEdgeIt : public Graph::OutEdgeIt { 
  1.1524 -//     public:
  1.1525 -//       OutEdgeIt() { }
  1.1526 -//       OutEdgeIt(const typename Graph::OutEdgeIt& e) : Graph::OutEdgeIt(e) { }
  1.1527 -//       OutEdgeIt(const Invalid& i) : Graph::OutEdgeIt(i) { }
  1.1528 -//       OutEdgeIt(const ErasingFirstGraphWrapper<Graph, FirstOutEdgesMap>& _G, 
  1.1529 -// 		const Node& n) : 
  1.1530 -// 	Graph::OutEdgeIt((*_G.first_out_edges)[n]) { }
  1.1531 -//     };
  1.1532 -//     class InEdgeIt : public Graph::InEdgeIt { 
  1.1533 -//     public:
  1.1534 -//       InEdgeIt() { }
  1.1535 -//       InEdgeIt(const typename Graph::InEdgeIt& e) : Graph::InEdgeIt(e) { }
  1.1536 -//       InEdgeIt(const Invalid& i) : Graph::InEdgeIt(i) { }
  1.1537 -//       InEdgeIt(const ErasingFirstGraphWrapper<Graph, FirstOutEdgesMap>& _G, 
  1.1538 -// 	       const Node& n) : 
  1.1539 -// 	Graph::InEdgeIt(*(_G.graph), n) { }
  1.1540 -//     };
  1.1541 -//     //typedef typename Graph::SymEdgeIt SymEdgeIt;
  1.1542 -//     class EdgeIt : public Graph::EdgeIt { 
  1.1543 -//     public:
  1.1544 -//       EdgeIt() { }
  1.1545 -//       EdgeIt(const typename Graph::EdgeIt& e) : Graph::EdgeIt(e) { }
  1.1546 -//       EdgeIt(const Invalid& i) : Graph::EdgeIt(i) { }
  1.1547 -//       EdgeIt(const ErasingFirstGraphWrapper<Graph, FirstOutEdgesMap>& _G) : 
  1.1548 -// 	Graph::EdgeIt(*(_G.graph)) { }
  1.1549 -//     };
  1.1550 -
  1.1551 -//     NodeIt& first(NodeIt& i) const {
  1.1552 -//       i=NodeIt(*this);
  1.1553 -//       return i;
  1.1554 -//     }
  1.1555 -//     OutEdgeIt& first(OutEdgeIt& i, const Node& n) const {
  1.1556 -//       i=OutEdgeIt(*this, n);
  1.1557 -// //      i=(*first_out_edges)[n];
  1.1558 -//       return i;
  1.1559 -//     }
  1.1560 -//     InEdgeIt& first(InEdgeIt& i, const Node& n) const {
  1.1561 -//       i=InEdgeIt(*this, n);
  1.1562 -//       return i;
  1.1563 -//     }
  1.1564 -//     EdgeIt& first(EdgeIt& i) const {
  1.1565 -//       i=EdgeIt(*this);
  1.1566 -//       return i;
  1.1567 -//     }
  1.1568 -
  1.1569 -// //     template<typename I> I& first(I& i) const { 
  1.1570 -// //       graph->first(i); 
  1.1571 -// //       return i;
  1.1572 -// //     }
  1.1573 -// //     OutEdgeIt& first(OutEdgeIt& e, const Node& n) const {
  1.1574 -// // //      e=first_out_edges->get(n);
  1.1575 -// //       e=(*first_out_edges)[n];
  1.1576 -// //       return e;
  1.1577 -// //     }
  1.1578 -// //     template<typename I, typename P> I& first(I& i, const P& p) const { 
  1.1579 -// //       graph->first(i, p); 
  1.1580 -// //       return i;
  1.1581 -// //     }
  1.1582 -    
  1.1583 -//     NodeIt& next(NodeIt& i) const {
  1.1584 -//       graph->next(i); 
  1.1585 -//       return i;
  1.1586 -//     }
  1.1587 -//     OutEdgeIt& next(OutEdgeIt& i) const {
  1.1588 -//       graph->next(i); 
  1.1589 -//       return i;
  1.1590 -//     }
  1.1591 -//     InEdgeIt& next(InEdgeIt& i) const {
  1.1592 -//       graph->next(i); 
  1.1593 -//       return i;
  1.1594 -//     }
  1.1595 -//     EdgeIt& next(EdgeIt& i) const {
  1.1596 -//       graph->next(i); 
  1.1597 -//       return i;
  1.1598 -//     }
  1.1599 -
  1.1600 -// //     template<typename I> I& next(I &i) const { 
  1.1601 -// //       graph->next(i); 
  1.1602 -// //       return i;
  1.1603 -// //     }
  1.1604 -    
  1.1605 -//     template< typename It > It first() const { 
  1.1606 -//       It e; this->first(e); return e; }
  1.1607 -    
  1.1608 -//     template< typename It > It first(const Node& v) const { 
  1.1609 -//       It e; this->first(e, v); return e; }
  1.1610 -
  1.1611 -//     void erase(const OutEdgeIt& e) const {
  1.1612 -//       OutEdgeIt f=e;
  1.1613 -//       this->next(f);
  1.1614 -//       first_out_edges->set(this->tail(e), f);
  1.1615 -//     }
  1.1616 -//   };
  1.1617 -
  1.1618 -
  1.1619 -// // FIXME: comparison should be made better!!!
  1.1620 -//   template<typename Graph, typename T, typename LowerMap, typename FlowMap, typename UpperMap>
  1.1621 -//   class ResGraphWrapper
  1.1622 -//   {
  1.1623 -//     Graph* graph;
  1.1624 -  
  1.1625 -//   public:
  1.1626 -//     typedef Graph ParentGraph;
  1.1627 -
  1.1628 -//     typedef typename Graph::Node Node;
  1.1629 -//     typedef typename Graph::Edge Edge;
  1.1630 -  
  1.1631 -//     typedef typename Graph::NodeIt NodeIt;
  1.1632 -   
  1.1633 -//     class OutEdgeIt {
  1.1634 -//     public:
  1.1635 -//       //Graph::Node n;
  1.1636 -//       bool out_or_in;
  1.1637 -//       typename Graph::OutEdgeIt o;
  1.1638 -//       typename Graph::InEdgeIt i;   
  1.1639 -//     };
  1.1640 -//     class InEdgeIt {
  1.1641 -//     public:
  1.1642 -//       //Graph::Node n;
  1.1643 -//       bool out_or_in;
  1.1644 -//       typename Graph::OutEdgeIt o;
  1.1645 -//       typename Graph::InEdgeIt i;   
  1.1646 -//     };
  1.1647 -//     typedef typename Graph::SymEdgeIt SymEdgeIt;
  1.1648 -//     typedef typename Graph::EdgeIt EdgeIt;
  1.1649 -
  1.1650 -//     int nodeNum() const { return gw.nodeNum(); }
  1.1651 -//     int edgeNum() const { return gw.edgeNum(); }
  1.1652 -
  1.1653 -//     Node& first(Node& n) const { return gw.first(n); }
  1.1654 -
  1.1655 -//     // Edge and SymEdge  is missing!!!!
  1.1656 -//     // Edge <-> In/OutEdgeIt conversion is missing!!!!
  1.1657 -
  1.1658 -//     //FIXME
  1.1659 -//     OutEdgeIt& first(OutEdgeIt& e, const Node& n) const 
  1.1660 -//       {
  1.1661 -// 	e.n=n;
  1.1662 -// 	gw.first(e.o,n);
  1.1663 -// 	while(gw.valid(e.o) && fmap.get(e.o)>=himap.get(e.o))
  1.1664 -// 	  gw.goNext(e.o);
  1.1665 -// 	if(!gw.valid(e.o)) {
  1.1666 -// 	  gw.first(e.i,n);
  1.1667 -// 	  while(gw.valid(e.i) && fmap.get(e.i)<=lomap.get(e.i))
  1.1668 -// 	    gw.goNext(e.i);
  1.1669 -// 	}
  1.1670 -// 	return e;
  1.1671 -//       }
  1.1672 -// /*
  1.1673 -//   OutEdgeIt &goNext(OutEdgeIt &e)
  1.1674 -//   {
  1.1675 -//   if(gw.valid(e.o)) {
  1.1676 -//   while(gw.valid(e.o) && fmap.get(e.o)>=himap.get(e.o))
  1.1677 -//   gw.goNext(e.o);
  1.1678 -//   if(gw.valid(e.o)) return e;
  1.1679 -//   else gw.first(e.i,e.n);
  1.1680 -//   }
  1.1681 -//   else {
  1.1682 -//   while(gw.valid(e.i) && fmap.get(e.i)<=lomap.get(e.i))
  1.1683 -//   gw.goNext(e.i);
  1.1684 -//   return e;
  1.1685 -//   }
  1.1686 -//   }
  1.1687 -//   OutEdgeIt Next(const OutEdgeIt &e) {OutEdgeIt t(e); return goNext(t);}
  1.1688 -// */
  1.1689 -//     //bool valid(const OutEdgeIt e) { return gw.valid(e.o)||gw.valid(e.i);}
  1.1690 -
  1.1691 -//     //FIXME
  1.1692 -//     InEdgeIt& first(InEdgeIt& e, const Node& n) const 
  1.1693 -//       {
  1.1694 -// 	e.n=n;
  1.1695 -// 	gw.first(e.i,n);
  1.1696 -// 	while(gw.valid(e.i) && fmap.get(e.i)>=himap.get(e.i))
  1.1697 -// 	  gw.goNext(e.i);
  1.1698 -// 	if(!gw.valid(e.i)) {
  1.1699 -// 	  gw.first(e.o,n);
  1.1700 -// 	  while(gw.valid(e.o) && fmap.get(e.o)<=lomap.get(e.o))
  1.1701 -// 	    gw.goNext(e.o);
  1.1702 -// 	}
  1.1703 -// 	return e;
  1.1704 -//       }
  1.1705 -// /*
  1.1706 -//   InEdgeIt &goNext(InEdgeIt &e)
  1.1707 -//   {
  1.1708 -//   if(gw.valid(e.i)) {
  1.1709 -//   while(gw.valid(e.i) && fmap.get(e.i)>=himap.get(e.i))
  1.1710 -//   gw.goNext(e.i);
  1.1711 -//   if(gw.valid(e.i)) return e;
  1.1712 -//   else gw.first(e.o,e.n);
  1.1713 -//   }
  1.1714 -//   else {
  1.1715 -//   while(gw.valid(e.o) && fmap.get(e.o)<=lomap.get(e.o))
  1.1716 -//   gw.goNext(e.o);
  1.1717 -//   return e;
  1.1718 -//   }
  1.1719 -//   }
  1.1720 -//   InEdgeIt Next(const InEdgeIt &e) {InEdgeIt t(e); return goNext(t);}
  1.1721 -// */
  1.1722 -//     //bool valid(const InEdgeIt e) { return gw.valid(e.i)||gw.valid(e.o);}
  1.1723 -
  1.1724 -//     //template<typename I> I &goNext(I &i); { return gw.goNext(i); }
  1.1725 -//     //template<typename I> I next(const I i); { return gw.goNext(i); }
  1.1726 -
  1.1727 -//     template< typename It > It first() const { 
  1.1728 -//       It e; first(e); return e; }
  1.1729 -
  1.1730 -//     template< typename It > It first(Node v) const { 
  1.1731 -//       It e; first(e, v); return e; }
  1.1732 -
  1.1733 -//     Node head(const Edge& e) const { return gw.head(e); }
  1.1734 -//     Node tail(const Edge& e) const { return gw.tail(e); }
  1.1735 -  
  1.1736 -//     template<typename I> Node aNode(const I& e) const { 
  1.1737 -//       return gw.aNode(e); }
  1.1738 -//     template<typename I> Node bNode(const I& e) const { 
  1.1739 -//       return gw.bNode(e); }
  1.1740 -  
  1.1741 -//     //template<typename I> bool valid(const I i);
  1.1742 -//     //{ return gw.valid(i); }
  1.1743 -  
  1.1744 -//     //template<typename I> void setInvalid(const I &i);
  1.1745 -//     //{ return gw.setInvalid(i); }
  1.1746 -  
  1.1747 -//     Node addNode() { return gw.addNode(); }
  1.1748 -//     Edge addEdge(const Node& tail, const Node& head) { 
  1.1749 -//       return gw.addEdge(tail, head); }
  1.1750 -  
  1.1751 -//     template<typename I> void erase(const I& i) { gw.erase(i); }
  1.1752 -  
  1.1753 -//     void clear() { gw.clear(); }
  1.1754 -  
  1.1755 -//     template<typename S> class NodeMap : public Graph::NodeMap<S> { };
  1.1756 -//     template<typename S> class EdgeMap : public Graph::EdgeMap<S> { };
  1.1757 -  
  1.1758 -//     void setGraph(Graph& _graph) { graph = &_graph; }
  1.1759 -//     Graph& getGraph() { return (*graph); }
  1.1760 -
  1.1761 -//     //ResGraphWrapper() : graph(0) { }
  1.1762 -//     ResGraphWrapper(Graph& _graph) : graph(&_graph) { }
  1.1763 -//   };
  1.1764 -
  1.1765  } //namespace hugo
  1.1766  
  1.1767  #endif //HUGO_GRAPH_WRAPPER_H