// class room declaration. #ifndef ROOM_H #define ROOM_H #include "incl.h" #include "data.h" #include "name.h" #include "user.h" using namespace std; class room : public data, public name { private: public: void add_user( user* p_user ) { p_user->set_p_room( this ); add_elem( p_user ); } user* get_user( string &s_name, bool &b_found ) { return static_cast( get_elem( s_name, b_found ) ); } // public methods: explicit room( string s_name ); // a constructor. ~room(); // room destructor. }; #endif