equal
  deleted
  inserted
  replaced
  
    
    
|    499       } |    499       } | 
|    500  |    500  | 
|    501     protected: |    501     protected: | 
|    502        |    502        | 
|    503       virtual void add(const Node&) {} |    503       virtual void add(const Node&) {} | 
|         |    504       virtual void add(const std::vector<Node>&) {} | 
|    504       virtual void erase(const Node&) {} |    505       virtual void erase(const Node&) {} | 
|         |    506       virtual void erase(const std::vector<Node>&) {} | 
|    505       virtual void clear() {} |    507       virtual void clear() {} | 
|    506       virtual void build() {} |    508       virtual void build() {} | 
|    507  |    509  | 
|    508       const Graph* getGraph() const { return graph; } |    510       const Graph* getGraph() const { return graph; } | 
|    509        |    511        |