#include <iostream>
    #include <typeinfo>
    #include <exception>
    using namespace std;
    class BaseClass 
    { 
        virtual void f(){} 
    };
    class DerivedClass : public BaseClass {};
    int main () 
    {
        try 
        {
            BaseClass* ptr1 = new BaseClass;
            BaseClass* ptr2 = new DerivedClass;
            cout << typeid(*ptr1).name() << " ";
            cout << typeid(*ptr2).name();
        } 
        catch (exception& excep) 
        { 
            cout << "Exception: " << excep.what() << endl; 
        }
        return 0;
    }