#include <iostream>

using namespace std;

class Silly {
   public:

      void Info(int i)  {
          info = i;
      }
      int Info(void) const {
          return info;
      }

      void Name(const string  &  n) {
           name = n;
      }

      string Name(void) const { 
          return name;
      }

   private:
      int info = 7;
      string name = "hello";

};

ostream & operator <<(ostream & s, const Silly & other) {
    s << "Name: "  << other.Name() << "  Info: " << other.Info();
    return s;
}

int main() {

    Silly * data = nullptr;
    Silly * & dataRef = data;

    data = new Silly;

    cout << " data:    " << data <<  endl;
    cout << " dataRef: " << dataRef << endl;
    cout << " *data = " << *data << endl;
    cout << " *dataRef = " << *dataRef << endl;
    cout << endl;

    delete data;
    data = nullptr;
    cout << " data:    " << data <<  endl;
    cout << " dataRef: " << dataRef << endl;
    cout << endl;

    dataRef = new Silly;
    cout << " data:    " << data <<  endl;
    cout << " dataRef: " << dataRef << endl;
    cout << " *data = " << *data << endl;
    cout << " *dataRef = " << *dataRef << endl;
    cout << endl;

    delete dataRef;
    dataRef = nullptr;
    cout << " data:    " << data <<  endl;
    cout << " dataRef: " << dataRef << endl;
    cout << endl;


    int x = 10;
    int & xRef = x;
    int * xPtr = & xRef;

    cout << " &x = " << &x << endl;
    cout << " &xRef = " << &xRef << endl;
    cout << " xPtr = " << xPtr << endl;
    cout << " x = " << x << endl;
    cout << " xRef = " << xRef << endl;
    cout << " *xPtr = " << *xPtr << endl;
    cout << endl;

    *xPtr = -99;
    cout << " x = " << x << endl;
    cout << " xRef = " << xRef << endl;
    cout << " *xPtr = " << *xPtr << endl;




    return 0;
}