typeid

class Base{public:void vvfunc() {}};

class Derived : public Base{

};

int _tmain(int argc, _TCHAR* argv[])
{
    Derived* pd = new Derived;
    Base* pb = pd;
    cout << typeid( pb ).name() << endl; //prints \"class Base *\"
    cout << typeid( pd ).name() << endl; //prints \"class Derived *\"

    try 
    {
        Base * pp = NULL;
        cout << typeid( *pp ).name() << endl;    
        cout << typeid( *pb ).name() << endl;   //prints \"class Derived\"    
        cout << typeid( *pd ).name() << endl;   //prints \"class Derived\"
    }
    catch (std::__non_rtti_object e)
    {    
        cout << "__non_rtti_object" << endl;
    }
    catch (std::bad_typeid e)
    {    
        cout << \"bad_typeid exception\" << endl;
    }
    delete pd;

    return 0;
}