[189] | 1 | // -*- c++ -*- |
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| 2 | #ifndef HUGO_LEDA_GRAPH_WRAPPER_H |
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| 3 | #define HUGO_LEDA_GRAPH_WRAPPER_H |
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| 4 | |
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| 5 | #include <LEDA/graph.h> |
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| 6 | #include <LEDA/node_array.h> |
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| 7 | #include <LEDA/edge_array.h> |
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| 8 | #include <LEDA/node_map.h> |
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| 9 | #include <LEDA/edge_map.h> |
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| 10 | //#include <LEDA/graph_alg.h> |
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| 11 | //#include <LEDA/dimacs.h> |
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| 12 | |
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| 13 | //#if defined(LEDA_NAMESPACE) |
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| 14 | //using namespace leda; |
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| 15 | //#endif |
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| 16 | |
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[616] | 17 | #include <hugo/invalid.h> |
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[189] | 18 | |
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| 19 | namespace hugo { |
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| 20 | |
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[617] | 21 | /// \brief A graph wrapper structure for wrapping LEDA graphs in HUGO. |
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| 22 | /// |
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| 23 | /// This graph wrapper class wraps LEDA graphs and LEDA parametrized graphs |
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| 24 | /// to satisfy HUGO graph concepts. |
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| 25 | /// Then the generic HUGOlib algorithms and wrappers can be used |
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[409] | 26 | /// with LEDA graphs. |
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[617] | 27 | /// \ingroup gwrapper |
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[189] | 28 | template<typename Graph> |
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| 29 | class LedaGraphWrapper |
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| 30 | { |
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[473] | 31 | protected: |
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[617] | 32 | Graph* l_graph; |
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| 33 | LedaGraphWrapper() : l_graph(0) { } |
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| 34 | void setGraph(Graph& _l_graph) { l_graph=&_l_graph; } |
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[189] | 35 | public: |
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| 36 | |
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| 37 | //LedaGraphWrapper() { } |
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[617] | 38 | LedaGraphWrapper(Graph& _l_graph) : l_graph(&_l_graph) { } |
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| 39 | LedaGraphWrapper(const LedaGraphWrapper &G) : l_graph(G.l_graph) { } |
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[189] | 40 | |
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| 41 | template <typename T> class NodeMap; |
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| 42 | template <typename T> class EdgeMap; |
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[646] | 43 | template <typename T> class NodeMapWrapper; |
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| 44 | template <typename T> class EdgeMapWrapper; |
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[189] | 45 | |
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[461] | 46 | class Node; |
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| 47 | class NodeIt; |
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| 48 | class Edge; |
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| 49 | class EdgeIt; |
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| 50 | class OutEdgeIt; |
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| 51 | class InEdgeIt; |
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| 52 | |
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[189] | 53 | /// The base type of the node iterators. |
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| 54 | class Node { |
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[461] | 55 | friend class LedaGraphWrapper<Graph>; |
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[189] | 56 | //friend class Edge; |
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| 57 | friend class EdgeIt; |
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| 58 | friend class InEdgeIt; |
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| 59 | friend class OutEdgeIt; |
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| 60 | protected: |
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| 61 | template <typename T> friend class NodeMap; |
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[617] | 62 | leda_node l_n; |
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[446] | 63 | public: //FIXME |
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[617] | 64 | Node(leda_node _l_n) : l_n(_l_n) { } |
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[189] | 65 | public: |
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| 66 | /// @warning The default constructor sets the iterator |
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| 67 | /// to an undefined value. |
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| 68 | Node() {} //FIXME |
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| 69 | /// Initialize the iterator to be invalid |
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[617] | 70 | Node(Invalid) : l_n(0) { } |
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[189] | 71 | //Node(const Node &) {} |
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[617] | 72 | bool operator==(Node n) const { return l_n==n.l_n; } //FIXME |
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| 73 | bool operator!=(Node n) const { return l_n!=n.l_n; } //FIXME |
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| 74 | operator leda_node () { return l_n; } |
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[189] | 75 | }; |
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| 76 | |
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| 77 | /// This iterator goes through each node. |
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| 78 | class NodeIt : public Node { |
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| 79 | public: |
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| 80 | /// @warning The default constructor sets the iterator |
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| 81 | /// to an undefined value. |
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| 82 | NodeIt() {} //FIXME |
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| 83 | /// Initialize the iterator to be invalid |
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| 84 | NodeIt(Invalid i) : Node(i) {} |
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| 85 | /// Sets the iterator to the first node of \c G. |
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[617] | 86 | NodeIt(const LedaGraphWrapper &G) : Node(G.l_graph->first_node()) { } |
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[189] | 87 | //NodeIt(const NodeIt &) {} //FIXME |
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| 88 | }; |
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| 89 | |
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| 90 | /// The base type of the edge iterators. |
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| 91 | class Edge { |
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| 92 | friend class LedaGraphWrapper; |
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| 93 | protected: |
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| 94 | template <typename T> friend class EdgeMap; |
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[617] | 95 | leda_edge l_e; |
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[446] | 96 | public: //FIXME |
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[617] | 97 | Edge(leda_edge _l_e) : l_e(_l_e) { } |
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[189] | 98 | public: |
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| 99 | /// @warning The default constructor sets the iterator |
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| 100 | /// to an undefined value. |
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| 101 | Edge() {} //FIXME |
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| 102 | /// Initialize the iterator to be invalid |
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[617] | 103 | Edge(Invalid) : l_e(0) {} |
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[189] | 104 | //Edge(const Edge &) {} |
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[617] | 105 | bool operator==(Edge e) const { return l_e==e.l_e; } //FIXME |
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| 106 | bool operator!=(Edge e) const { return l_e!=e.l_e; } //FIXME |
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| 107 | operator leda_edge () { return l_e; } |
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[189] | 108 | }; |
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| 109 | |
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| 110 | /// This iterator goes trought the outgoing edges of a certain graph. |
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| 111 | |
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| 112 | class OutEdgeIt : public Edge { |
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| 113 | public: |
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| 114 | /// @warning The default constructor sets the iterator |
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| 115 | /// to an undefined value. |
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| 116 | OutEdgeIt() {} |
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| 117 | /// Initialize the iterator to be invalid |
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| 118 | OutEdgeIt(Invalid i) : Edge(i) {} |
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| 119 | /// This constructor sets the iterator to first outgoing edge. |
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| 120 | |
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| 121 | /// This constructor set the iterator to the first outgoing edge of |
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| 122 | /// node |
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| 123 | ///@param n the node |
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| 124 | ///@param G the graph |
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[617] | 125 | OutEdgeIt(const LedaGraphWrapper & G, Node n) : Edge(G.l_graph->first_adj_edge(n.l_n)) { } |
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[189] | 126 | }; |
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| 127 | |
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| 128 | class InEdgeIt : public Edge { |
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| 129 | public: |
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| 130 | /// @warning The default constructor sets the iterator |
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| 131 | /// to an undefined value. |
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| 132 | InEdgeIt() {} |
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| 133 | /// Initialize the iterator to be invalid |
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| 134 | InEdgeIt(Invalid i) : Edge(i) {} |
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[617] | 135 | InEdgeIt(const LedaGraphWrapper & G, Node n) : Edge(G.l_graph->first_in_edge(n.l_n)) { } |
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[189] | 136 | }; |
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| 137 | |
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| 138 | // class SymEdgeIt : public Edge {}; |
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| 139 | class EdgeIt : public Edge { |
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| 140 | public: |
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| 141 | /// @warning The default constructor sets the iterator |
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| 142 | /// to an undefined value. |
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| 143 | EdgeIt() {} |
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| 144 | /// Initialize the iterator to be invalid |
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| 145 | EdgeIt(Invalid i) : Edge(i) {} |
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[617] | 146 | EdgeIt(const LedaGraphWrapper & G) : Edge(G.l_graph->first_edge()) { } |
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[189] | 147 | }; |
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| 148 | |
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| 149 | /// First node of the graph. |
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| 150 | |
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| 151 | /// \post \c i and the return value will be the first node. |
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| 152 | /// |
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| 153 | NodeIt &first(NodeIt &i) const { i=NodeIt(*this); return i; } |
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| 154 | |
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| 155 | /// The first outgoing edge. |
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| 156 | InEdgeIt &first(InEdgeIt &i, Node n) const { |
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| 157 | i=InEdgeIt(*this, n); |
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| 158 | return i; |
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| 159 | } |
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| 160 | /// The first incoming edge. |
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| 161 | OutEdgeIt &first(OutEdgeIt &i, Node n) const { |
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| 162 | i=OutEdgeIt(*this, n); |
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| 163 | return i; |
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| 164 | } |
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| 165 | // SymEdgeIt &first(SymEdgeIt &, Node) const { return i;} |
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| 166 | /// The first edge of the Graph. |
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| 167 | EdgeIt &first(EdgeIt &i) const { |
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| 168 | i=EdgeIt(*this); |
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| 169 | return i; } |
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| 170 | |
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| 171 | // Node getNext(Node) const {} |
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| 172 | // InEdgeIt getNext(InEdgeIt) const {} |
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| 173 | // OutEdgeIt getNext(OutEdgeIt) const {} |
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| 174 | // //SymEdgeIt getNext(SymEdgeIt) const {} |
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| 175 | // EdgeIt getNext(EdgeIt) const {} |
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| 176 | |
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| 177 | /// Go to the next node. |
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| 178 | NodeIt &next(NodeIt &i) const { |
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[617] | 179 | i.l_n=l_graph->succ_node(i.l_n); |
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[189] | 180 | return i; |
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| 181 | } |
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| 182 | /// Go to the next incoming edge. |
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| 183 | InEdgeIt &next(InEdgeIt &i) const { |
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[617] | 184 | i.l_e=l_graph->in_succ(i.l_e); |
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[189] | 185 | return i; |
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| 186 | } |
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| 187 | /// Go to the next outgoing edge. |
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| 188 | OutEdgeIt &next(OutEdgeIt &i) const { |
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[617] | 189 | i.l_e=l_graph->adj_succ(i.l_e); |
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[189] | 190 | return i; |
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| 191 | } |
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| 192 | //SymEdgeIt &next(SymEdgeIt &) const {} |
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| 193 | /// Go to the next edge. |
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| 194 | EdgeIt &next(EdgeIt &i) const { |
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[617] | 195 | i.l_e=l_graph->succ_edge(i.l_e); |
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[189] | 196 | return i; |
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| 197 | } |
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| 198 | |
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[409] | 199 | // template< typename It > |
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| 200 | // It first() const { |
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| 201 | // It e; |
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| 202 | // first(e); |
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| 203 | // return e; |
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| 204 | // } |
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[189] | 205 | |
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[409] | 206 | // template< typename It > |
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| 207 | // It first(Node v) const { |
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| 208 | // It e; |
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| 209 | // first(e, v); |
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| 210 | // return e; |
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| 211 | // } |
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[189] | 212 | |
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| 213 | ///Gives back the head node of an edge. |
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| 214 | Node head(Edge e) const { |
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[617] | 215 | return Node(l_graph->target(e.l_e)); |
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[189] | 216 | } |
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| 217 | ///Gives back the tail node of an edge. |
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| 218 | Node tail(Edge e) const { |
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[617] | 219 | return Node(l_graph->source(e.l_e)); |
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[189] | 220 | } |
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| 221 | |
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| 222 | Node aNode(InEdgeIt e) const { return head(e); } |
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| 223 | Node aNode(OutEdgeIt e) const { return tail(e); } |
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| 224 | // Node aNode(SymEdgeIt) const {} |
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| 225 | |
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| 226 | Node bNode(InEdgeIt e) const { return tail(e); } |
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| 227 | Node bNode(OutEdgeIt e) const { return head(e); } |
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| 228 | // Node bNode(SymEdgeIt) const {} |
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| 229 | |
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| 230 | /// Checks if a node iterator is valid |
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[617] | 231 | bool valid(Node n) const { return n.l_n; } |
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[189] | 232 | /// Checks if an edge iterator is valid |
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[617] | 233 | bool valid(Edge e) const { return e.l_e; } |
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[189] | 234 | |
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| 235 | ///Gives back the \e id of a node. |
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[617] | 236 | int id(Node n) const { return n.l_n->id(); } |
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[189] | 237 | ///Gives back the \e id of an edge. |
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[617] | 238 | int id(Edge e) const { return e.l_e->id(); } |
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[189] | 239 | |
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| 240 | //void setInvalid(Node &) const {}; |
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| 241 | //void setInvalid(Edge &) const {}; |
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| 242 | |
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[617] | 243 | Node addNode() const { return Node(l_graph->new_node()); } |
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[189] | 244 | Edge addEdge(Node tail, Node head) const { |
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[617] | 245 | return Edge(l_graph->new_edge(tail.l_n, head.l_n)); |
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[189] | 246 | } |
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| 247 | |
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[617] | 248 | void erase(Node n) const { l_graph->del_node(n.l_n); } |
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| 249 | void erase(Edge e) const { l_graph->del_edge(e.l_e); } |
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[189] | 250 | |
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[617] | 251 | void clear() const { l_graph->clear(); } |
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[189] | 252 | |
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[617] | 253 | int nodeNum() const { return l_graph->number_of_nodes(); } |
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| 254 | int edgeNum() const { return l_graph->number_of_edges(); } |
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[189] | 255 | |
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| 256 | ///Read/write map from the nodes to type \c T. |
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| 257 | template<typename T> class NodeMap |
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| 258 | { |
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| 259 | leda_node_map<T> leda_stuff; |
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| 260 | public: |
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| 261 | typedef T ValueType; |
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| 262 | typedef Node KeyType; |
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| 263 | |
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[617] | 264 | NodeMap(const LedaGraphWrapper &G) : leda_stuff(*(G.l_graph)) {} |
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| 265 | NodeMap(const LedaGraphWrapper &G, T t) : leda_stuff(*(G.l_graph), t) {} |
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[189] | 266 | |
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[617] | 267 | void set(Node i, T t) { leda_stuff[i.l_n]=t; } |
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| 268 | T get(Node i) const { return leda_stuff[i.l_n]; } //FIXME: Is it necessary |
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| 269 | T &operator[](Node i) { return leda_stuff[i.l_n]; } |
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| 270 | const T &operator[](Node i) const { return leda_stuff[i.l_n]; } |
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[189] | 271 | |
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| 272 | void update() { /*leda_stuff.init(leda_stuff.get_graph());*/ } |
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[617] | 273 | //void update(T a) { leda_stuff.init(leda_stuff.get_graph()/**(G.l_graph)*/, a); } //FIXME: Is it necessary |
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[189] | 274 | }; |
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| 275 | |
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| 276 | ///Read/write map from the edges to type \c T. |
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| 277 | template<typename T> class EdgeMap |
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| 278 | { |
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| 279 | leda_edge_map<T> leda_stuff; |
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| 280 | public: |
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| 281 | typedef T ValueType; |
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| 282 | typedef Edge KeyType; |
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| 283 | |
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[617] | 284 | EdgeMap(const LedaGraphWrapper &G) : leda_stuff(*(G.l_graph)) {} |
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| 285 | EdgeMap(const LedaGraphWrapper &G, T t) : leda_stuff(*(G.l_graph), t) {} |
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[189] | 286 | |
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[617] | 287 | void set(Edge i, T t) { leda_stuff[i.l_e]=t; } |
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| 288 | T get(Edge i) const { return leda_stuff[i.l_e]; } //FIXME: Is it necessary |
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| 289 | T &operator[](Edge i) { return leda_stuff[i.l_e]; } |
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| 290 | const T &operator[](Edge i) const { return leda_stuff[i.l_e]; } |
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[189] | 291 | |
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| 292 | void update() { /*leda_stuff.init(leda_stuff.get_graph());*/ } |
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[617] | 293 | //void update(T a) { leda_stuff.init(leda_stuff.get_graph()/**(G.l_graph)*/, a); } //FIXME: Is it necessary |
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[189] | 294 | }; |
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| 295 | |
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[646] | 296 | |
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| 297 | ///Read/write map from the nodes to type \c T. |
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| 298 | template<typename T> class NodeMapWrapper |
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| 299 | { |
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| 300 | leda_node_map<T>* leda_stuff; |
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| 301 | public: |
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| 302 | typedef T ValueType; |
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| 303 | typedef Node KeyType; |
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| 304 | |
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| 305 | NodeMapWrapper(leda_node_map<T>& _leda_stuff) : |
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| 306 | leda_stuff(&_leda_stuff) { } |
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| 307 | //NodeMap(leda_node_map& &G, T t) : leda_stuff(*(G.l_graph), t) {} |
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| 308 | |
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| 309 | void set(Node i, T t) { (*leda_stuff)[i.l_n]=t; } |
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| 310 | T get(Node i) const { return (*leda_stuff)[i.l_n]; } //FIXME: Is it necessary |
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| 311 | T &operator[](Node i) { return (*leda_stuff)[i.l_n]; } |
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| 312 | const T &operator[](Node i) const { return (*leda_stuff)[i.l_n]; } |
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| 313 | |
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| 314 | void update() { /*leda_stuff.init(leda_stuff.get_graph());*/ } |
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| 315 | //void update(T a) { leda_stuff.init(leda_stuff.get_graph()/**(G.l_graph)*/, a); } //FIXME: Is it necessary |
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| 316 | }; |
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| 317 | |
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| 318 | ///Read/write map from the edges to type \c T. |
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| 319 | template<typename T> class EdgeMapWrapper |
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| 320 | { |
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| 321 | leda_edge_map<T>* leda_stuff; |
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| 322 | public: |
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| 323 | typedef T ValueType; |
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| 324 | typedef Edge KeyType; |
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| 325 | |
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| 326 | EdgeMapWrapper(leda_edge_map<T>& _leda_stuff) : |
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| 327 | leda_stuff(_leda_stuff) { } |
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| 328 | //EdgeMap(const LedaGraphWrapper &G, T t) : leda_stuff(*(G.l_graph), t) {} |
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| 329 | |
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| 330 | void set(Edge i, T t) { (*leda_stuff)[i.l_e]=t; } |
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| 331 | T get(Edge i) const { return (*leda_stuff)[i.l_e]; } //FIXME: Is it necessary |
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| 332 | T &operator[](Edge i) { return (*leda_stuff)[i.l_e]; } |
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| 333 | const T &operator[](Edge i) const { return (*leda_stuff)[i.l_e]; } |
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| 334 | |
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| 335 | void update() { /*leda_stuff.init(leda_stuff.get_graph());*/ } |
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| 336 | //void update(T a) { leda_stuff.init(leda_stuff.get_graph()/**(G.l_graph)*/, a); } //FIXME: Is it necessary |
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| 337 | }; |
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| 338 | |
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[189] | 339 | }; |
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| 340 | |
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[617] | 341 | |
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| 342 | /// \brief LEDA graph template. |
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| 343 | /// |
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| 344 | /// This graph stucture uses LEDA graphs for physical storage. |
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| 345 | /// \ingroup graphs |
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[473] | 346 | template<typename Graph> |
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| 347 | class LedaGraph : public LedaGraphWrapper<Graph> { |
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| 348 | typedef LedaGraphWrapper<Graph> Parent; |
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| 349 | protected: |
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| 350 | Graph gr; |
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| 351 | public: |
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| 352 | LedaGraph() { |
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| 353 | Parent::setGraph(gr); |
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| 354 | } |
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| 355 | }; |
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| 356 | |
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[189] | 357 | } //namespace hugo |
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| 358 | |
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| 359 | #endif // HUGO_LEDA_GRAPH_WRAPPER_H |
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