00001 00004 #ifndef __EQUIVALENT_HH__ 00005 #define __EQUIVALENT_HH__ 00006 00007 #include "vertex_data.hh" 00008 #include "border_data.hh" 00009 00011 class equivalent 00012 { 00013 public: 00015 virtual bool lambda(int,vertex,vertex,dart,dart)=0; 00016 }; 00017 00018 #endif // __EQUIVALENT_HH__