class ApricoT:public ENGINE{ public: ApricoT(){ check_by=CHECK_BY::FILE; check_by_target=L"arc.a*"; }; bool attach_function(); }; class ApricoTlast:public ApricoT{ public: ApricoTlast(){ check_by=CHECK_BY::FILE; check_by_target=L"arc.dat"; is_engine_certain=false; }; };