#include <iostream> 
using namespace std;

class foo 
{ 
    int *a; 
public: 
    foo() 
    { 
        a = new int[5]; 
        cout << "\n foo constructor" << endl; 
    } 
    ~foo() 
    { 
        cout << "\n foo destructor" << endl; 
        delete[] a; 
    } 
}; 
 
class bar : public foo 
{ 
    int *b; 
public: 
    bar() 
    { 
        b = new int[5]; 
        cout << "\n bar constructor" << endl; 
    } 
    ~bar() 
    { 
        cout << "\n bar destructor" << endl; 
        delete[] b; 
    } 
}; 
 
int main() 
{ 
    foo *obj = new bar; // Derived class object is type compatible with base class 
 
    delete obj; // Equivalent to obj->~foo(); 
    getchar();
    return 0; 
}