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   454   public:  | 
   454   public:  | 
   455     /// Returns the number of edges.  | 
   455     /// Returns the number of edges.  | 
   456     int edgeNum() const { return 0; } | 
   456     int edgeNum() const { return 0; } | 
   457   };  | 
   457   };  | 
   458   | 
   458   | 
   459   class FullFeatureGraphConcept : public NodeIterableGraphConcept,  | 
   459   class FullFeatureGraphConcept : virtual public NodeIterableGraphConcept,  | 
   460 				  public EdgeIterableGraphConcept,   | 
   460 				  virtual public EdgeIterableGraphConcept,   | 
   461 				  public OutEdgeIterableGraphConcept,   | 
   461 				  virtual public OutEdgeIterableGraphConcept,   | 
   462 				  public InEdgeIterableGraphConcept { | 
   462 				  virtual public InEdgeIterableGraphConcept,   | 
         | 
   463 				  virtual public NodeCountingGraphConcept { | 
   463   public:  | 
   464   public:  | 
   464     FullFeatureGraphConcept() { } | 
   465     FullFeatureGraphConcept() { } | 
         | 
   466     using EdgeIterableGraphConcept::next;  | 
         | 
   467     using NodeIterableGraphConcept::next;  | 
         | 
   468     using OutEdgeIterableGraphConcept::next;      | 
         | 
   469     using InEdgeIterableGraphConcept::next;  | 
   465   };  | 
   470   };  | 
   466     | 
   471     | 
   467   /// @}  | 
   472   /// @}  | 
   468   | 
   473   | 
   469 } //namespace hugo  | 
   474 } //namespace hugo  |