lemon/graph_utils.h
changeset 2056 8acf212a5ed4
parent 2029 e00114f165f5
child 2064 2c5f81b35269
equal deleted inserted replaced
48:4bc28b34cdbe 49:24019421e8e1
    46 
    46 
    47   ///Creates convenience typedefs for the graph types and iterators
    47   ///Creates convenience typedefs for the graph types and iterators
    48 
    48 
    49   ///This \c \#define creates convenience typedefs for the following types
    49   ///This \c \#define creates convenience typedefs for the following types
    50   ///of \c Graph: \c Node,  \c NodeIt, \c Edge, \c EdgeIt, \c InEdgeIt,
    50   ///of \c Graph: \c Node,  \c NodeIt, \c Edge, \c EdgeIt, \c InEdgeIt,
    51   ///\c OutEdgeIt,  \c BoolNodeMap,  \c IntNodeMap,  \c DoubleNodeMap,
    51   ///\c OutEdgeIt
    52   ///\c BoolEdgeMap, \c IntEdgeMap,  \c DoubleEdgeMap.  
       
    53   ///\note If \c G it a template parameter, it should be used in this way.
    52   ///\note If \c G it a template parameter, it should be used in this way.
    54   ///\code
    53   ///\code
    55   ///  GRAPH_TYPEDEFS(typename G)
    54   ///  GRAPH_TYPEDEFS(typename G)
    56   ///\endcode
    55   ///\endcode
    57   ///
    56   ///
    62     typedef Graph::   NodeIt    NodeIt;			\
    61     typedef Graph::   NodeIt    NodeIt;			\
    63     typedef Graph::   Edge      Edge;			\
    62     typedef Graph::   Edge      Edge;			\
    64     typedef Graph::   EdgeIt    EdgeIt;			\
    63     typedef Graph::   EdgeIt    EdgeIt;			\
    65     typedef Graph:: InEdgeIt  InEdgeIt;			\
    64     typedef Graph:: InEdgeIt  InEdgeIt;			\
    66     typedef Graph::OutEdgeIt OutEdgeIt;			
    65     typedef Graph::OutEdgeIt OutEdgeIt;			
    67 //     typedef Graph::template NodeMap<bool> BoolNodeMap;	       
    66 
    68 //     typedef Graph::template NodeMap<int> IntNodeMap;	       
       
    69 //     typedef Graph::template NodeMap<double> DoubleNodeMap;  
       
    70 //     typedef Graph::template EdgeMap<bool> BoolEdgeMap;	       
       
    71 //     typedef Graph::template EdgeMap<int> IntEdgeMap;	       
       
    72 //     typedef Graph::template EdgeMap<double> DoubleEdgeMap;
       
    73   
       
    74   ///Creates convenience typedefs for the undirected graph types and iterators
    67   ///Creates convenience typedefs for the undirected graph types and iterators
    75 
    68 
    76   ///This \c \#define creates the same convenience typedefs as defined by
    69   ///This \c \#define creates the same convenience typedefs as defined by
    77   ///\ref GRAPH_TYPEDEFS(Graph) and three more, namely it creates
    70   ///\ref GRAPH_TYPEDEFS(Graph) and three more, namely it creates
    78   ///\c UEdge, \c UEdgeIt, \c IncEdgeIt,
    71   ///\c UEdge, \c UEdgeIt, \c IncEdgeIt,
    79   ///\c BoolUEdgeMap, \c IntUEdgeMap,  \c DoubleUEdgeMap.  
       
    80   ///
    72   ///
    81   ///\note If \c G it a template parameter, it should be used in this way.
    73   ///\note If \c G it a template parameter, it should be used in this way.
    82   ///\code
    74   ///\code
    83   ///  UGRAPH_TYPEDEFS(typename G)
    75   ///  UGRAPH_TYPEDEFS(typename G)
    84   ///\endcode
    76   ///\endcode
    91     typedef Graph:: UEdgeIt UEdgeIt;			\
    83     typedef Graph:: UEdgeIt UEdgeIt;			\
    92     typedef Graph:: IncEdgeIt   IncEdgeIt;		       
    84     typedef Graph:: IncEdgeIt   IncEdgeIt;		       
    93 //     typedef Graph::template UEdgeMap<bool> BoolUEdgeMap;	 
    85 //     typedef Graph::template UEdgeMap<bool> BoolUEdgeMap;	 
    94 //     typedef Graph::template UEdgeMap<int> IntUEdgeMap;
    86 //     typedef Graph::template UEdgeMap<int> IntUEdgeMap;
    95 //     typedef Graph::template UEdgeMap<double> DoubleUEdgeMap;
    87 //     typedef Graph::template UEdgeMap<double> DoubleUEdgeMap;
    96   
    88 
    97 
    89   ///\brief Creates convenience typedefs for the bipartite undirected graph 
       
    90   ///types and iterators
       
    91 
       
    92   ///This \c \#define creates the same convenience typedefs as defined by
       
    93   ///\ref UGRAPH_TYPEDEFS(Graph) and two more, namely it creates
       
    94   ///\c ANodeIt, \c BNodeIt, 
       
    95   ///
       
    96   ///\note If \c G it a template parameter, it should be used in this way.
       
    97   ///\code
       
    98   ///  BPUGRAPH_TYPEDEFS(typename G)
       
    99   ///\endcode
       
   100   ///
       
   101   ///\warning There are no typedefs for the graph maps because of the lack of
       
   102   ///template typedefs in C++.
       
   103 #define BPUGRAPH_TYPEDEFS(Graph)            \
       
   104   UGRAPH_TYPEDEFS(Graph)                    \
       
   105     typedef Graph::ANodeIt ANodeIt;	    \
       
   106     typedef Graph::BNodeIt BNodeIt;
    98 
   107 
    99   /// \brief Function to count the items in the graph.
   108   /// \brief Function to count the items in the graph.
   100   ///
   109   ///
   101   /// This function counts the items (nodes, edges etc) in the graph.
   110   /// This function counts the items (nodes, edges etc) in the graph.
   102   /// The complexity of the function is O(n) because
   111   /// The complexity of the function is O(n) because
   428       typedef typename Graph::UEdge UEdge;
   437       typedef typename Graph::UEdge UEdge;
   429       static UEdge find(const Graph &g, Node u, Node v, UEdge e) {
   438       static UEdge find(const Graph &g, Node u, Node v, UEdge e) {
   430         bool b;
   439         bool b;
   431         if (u != v) {
   440         if (u != v) {
   432           if (e == INVALID) {
   441           if (e == INVALID) {
   433             g.firstInc(e, u, b);
   442             g.firstInc(e, b, u);
   434           } else {
   443           } else {
   435             b = g.source(e) == u;
   444             b = g.source(e) == u;
   436             g.nextInc(e, b);
   445             g.nextInc(e, b);
   437           }
   446           }
   438           while (e != INVALID && g.target(e) != v) {
   447           while (e != INVALID && g.target(e) != v) {
   439             g.nextInc(e, b);
   448             g.nextInc(e, b);
   440           }
   449           }
   441         } else {
   450         } else {
   442           if (e == INVALID) {
   451           if (e == INVALID) {
   443             g.firstInc(e, u, b);
   452             g.firstInc(e, b, u);
   444           } else {
   453           } else {
   445             b = true;
   454             b = true;
   446             g.nextInc(e, b);
   455             g.nextInc(e, b);
   447           }
   456           }
   448           while (e != INVALID && (!b || g.target(e) != v)) {
   457           while (e != INVALID && (!b || g.target(e) != v)) {
   483   ///     e = findUEdge(g,u,v,e)) {
   492   ///     e = findUEdge(g,u,v,e)) {
   484   ///   ...
   493   ///   ...
   485   /// }
   494   /// }
   486   ///\endcode
   495   ///\endcode
   487   template <typename Graph>
   496   template <typename Graph>
   488   inline typename Graph::UEdge findEdge(const Graph &g,
   497   inline typename Graph::UEdge findUEdge(const Graph &g,
   489                                         typename Graph::Node u, 
   498                                          typename Graph::Node u, 
   490                                         typename Graph::Node v,
   499                                          typename Graph::Node v,
   491                                         typename Graph::UEdge prev = INVALID) {
   500                                          typename Graph::UEdge p = INVALID) {
   492     return _graph_utils_bits::FindUEdgeSelector<Graph>::find(g, u, v, prev);
   501     return _graph_utils_bits::FindUEdgeSelector<Graph>::find(g, u, v, p);
   493   }
   502   }
   494 
   503 
   495   /// \brief Iterator for iterating on uedges connected the same nodes.
   504   /// \brief Iterator for iterating on uedges connected the same nodes.
   496   ///
   505   ///
   497   /// Iterator for iterating on uedges connected the same nodes. It is 
   506   /// Iterator for iterating on uedges connected the same nodes. It is