fixed-inheritance.cpp

class A {
public:
    A(int j) {i=new int[j];}
    virtual ~A() {delete[] i;}
private:
    int* i;
};

class B : public A {
public:
    B(int j):A(j) {i = new char[j];}
    ~B() {delete[] i;}
private:
    char* i;
};


int main() {
    A *a = new A(10);
    B *b = new B(20);
    delete a;
    a = b;
    delete b;
    return 0;
}