src/work/list_graph.h
changeset 446 77ef5c7a57d9
parent 436 6d632cb56ea3
child 551 d167149bde95
equal deleted inserted replaced
15:797c99a05c5a 16:d8a778507ae3
    15     for( ; it.valid(); ++it) { ++i; } 
    15     for( ; it.valid(); ++it) { ++i; } 
    16     return i;
    16     return i;
    17   }
    17   }
    18 
    18 
    19   class ListGraph {
    19   class ListGraph {
    20     class node_item;
    20     struct node_item;
    21     class edge_item;
    21     struct edge_item;
    22   public:
    22   public:
    23     class Node;
    23     class Node;
    24     class NodeIt;
    24     class NodeIt;
    25     class Edge;
    25     class Edge;
    26     class EdgeIt;
    26     class EdgeIt;
    82     int _edge_num;
    82     int _edge_num;
    83 
    83 
    84     node_item* _first_node;
    84     node_item* _first_node;
    85     node_item* _last_node;
    85     node_item* _last_node;
    86 
    86 
    87     class node_item {
    87     struct node_item {
    88       friend class ListGraph;
       
    89       template <typename T> friend class NodeMap;
       
    90       
       
    91       friend class Node;
       
    92       friend class NodeIt;
       
    93       friend class Edge;
       
    94       friend class EdgeIt;
       
    95       friend class OutEdgeIt;
       
    96       friend class InEdgeIt;
       
    97       friend class SymEdgeIt;
       
    98       friend std::ostream& operator<<(std::ostream& os, const Node& i);
       
    99       friend std::ostream& operator<<(std::ostream& os, const Edge& i);
       
   100       //ListGraph* G;
       
   101       int id;
    88       int id;
   102       edge_item* _first_out_edge;
    89       edge_item* _first_out_edge;
   103       edge_item* _last_out_edge;
    90       edge_item* _last_out_edge;
   104       edge_item* _first_in_edge;
    91       edge_item* _first_in_edge;
   105       edge_item* _last_in_edge;
    92       edge_item* _last_in_edge;
   106       node_item* _next_node;
    93       node_item* _next_node;
   107       node_item* _prev_node;
    94       node_item* _prev_node;
   108     public:
    95     };
   109       node_item() { }
    96 
   110     };
    97     struct edge_item {
   111 
       
   112     class edge_item {
       
   113       friend class ListGraph;
       
   114       template <typename T> friend class EdgeMap;
       
   115 
       
   116       friend class Node;
       
   117       friend class NodeIt;
       
   118       friend class Edge;
       
   119       friend class EdgeIt;
       
   120       friend class OutEdgeIt;
       
   121       friend class InEdgeIt;
       
   122       friend class SymEdgeIt;
       
   123       friend std::ostream& operator<<(std::ostream& os, const Edge& i);
       
   124       //ListGraph* G;
       
   125       int id;
    98       int id;
   126       node_item* _tail;
    99       node_item* _tail;
   127       node_item* _head;
   100       node_item* _head;
   128       edge_item* _next_out;
   101       edge_item* _next_out;
   129       edge_item* _prev_out;
   102       edge_item* _prev_out;
   130       edge_item* _next_in;
   103       edge_item* _next_in;
   131       edge_item* _prev_in;
   104       edge_item* _prev_in;
   132     public:
       
   133       edge_item() { }
       
   134     };
   105     };
   135 
   106 
   136     node_item* _add_node() { 
   107     node_item* _add_node() { 
   137       node_item* p=new node_item;
   108       node_item* p=new node_item;
   138       p->id=node_id++;
   109       p->id=node_id++;
   544       Node bNode() const { 
   515       Node bNode() const { 
   545 	return (out_or_in) ? Node(edge->_head) : Node(edge->_tail); }
   516 	return (out_or_in) ? Node(edge->_head) : Node(edge->_tail); }
   546     };
   517     };
   547   };
   518   };
   548 
   519 
       
   520   inline
   549   std::ostream& operator<<(std::ostream& os, const ListGraph::Node& i) { 
   521   std::ostream& operator<<(std::ostream& os, const ListGraph::Node& i) { 
   550     if (i.valid())
   522     if (i.valid())
   551       os << i.node->id; 
   523       os << i.node->id;
   552     else
   524     else
   553       os << "invalid";
   525       os << "invalid";
   554     return os; 
   526     return os; 
   555   }
   527   }
       
   528 
       
   529   inline
   556   std::ostream& operator<<(std::ostream& os, const ListGraph::Edge& i) { 
   530   std::ostream& operator<<(std::ostream& os, const ListGraph::Edge& i) { 
   557     if (i.valid()) 
   531     if (i.valid()) 
   558       os << "(" << i.edge->_tail->id << "--" << i.edge->id << "->" << i.edge->_head->id << ")"; 
   532       os << "(" << i.tailNode() << "--" << i.edge->id << "->" 
       
   533 	 << i.headNode() << ")"; 
   559     else 
   534     else 
   560       os << "invalid";
   535       os << "invalid";
   561     return os; 
   536     return os; 
   562   }
   537   }
   563 
   538