cppOperator<<OverloadTask

class Parent
{
    int parentId;
public:
    Parent(int parentIdP) : parentId{parentIdP} {}
    virtual void info() { std::cout << "I'm a Parent with pId = " << parentId << '\n'; }
    virtual ~Parent(){ std::cout << "Parent dtor\n"; }
};

//Parent::~Parent()
//{
//  std::cout << "Parent dtor\n";
//}

class Child : public Parent
{
    int size;
    int* arr;
public:
    Child(int sizeP) : Parent(42), size{ sizeP }, arr{ new int[sizeP]} {}
    virtual void info()override { std::cout << "I'm a Child with size = " << size << '\n'; }
    ~Child() { delete[] arr; std::cout << "Child dtor\n"; }
};


int main()
{
    //{
    //  Parent p{ 33 };
    //  Child c{ 10 };

    //  p.info();
    //  c.info();
    //}

    {
        Parent* pPtr1{ new Parent{333} };
        std::cout << "This is Parent: ";
        pPtr1->info();

        Parent* pPtr2{ new Child{5} };
        std::cout << "This is Child: ";
        pPtr2->info();

        delete pPtr1;
        delete pPtr2;
    }