#include <string>
#include <iostream>

using namespace std;

struct People
{ string name;
  int bdate;        
  string phone;
  People * others;

  People(string n, int b, string p, People * o)
  { name = n;
    bdate = b;
    phone = p;
    others = o; }

  void printone()
  { cout << name <<
            ", born " << bdate << 
            ", ph " << phone << "\n"; }
};

int main()
{
  People * a;      // horribly uninitialised variable
                   // will cause trouble eventually

  a = new People("Jill", 19980720, "111-2222", a);

  a = new People("Joe", 20011213, "222-3333", a);

  a = new People("Jane", 19990306, "111-3232", a);

  a = new People("Jim", 20000826, "111-4444", a);

  a = new People("Jeff", 19991101, "222-1234", a);

  a->printone();

  a->others->printone();

  a->others->others->printone();

  a->others->others->others->printone();

  a->others->others->others->others->printone();

  a->others->others->others->others->others->printone();
    // that is where the uninitialised variable caught up with us.
}