lemon/path.h
changeset 399 5a7dbeaed70e
parent 236 da953e387d31
child 440 88ed40ad0d4f
child 498 afd134142111
equal deleted inserted replaced
8:148c2897f123 9:7807f640201e
   847     int length() const { return len; }
   847     int length() const { return len; }
   848 
   848 
   849     /// \brief Return true when the path is empty.
   849     /// \brief Return true when the path is empty.
   850     int empty() const { return len == 0; }
   850     int empty() const { return len == 0; }
   851 
   851 
   852     /// \break Erase all arcs in the digraph.
   852     /// \brief Erase all arcs in the digraph.
   853     void clear() {
   853     void clear() {
   854       len = 0;
   854       len = 0;
   855       if (arcs) delete[] arcs;
   855       if (arcs) delete[] arcs;
   856       arcs = 0;
   856       arcs = 0;
   857     }
   857     }