// file tmain1.C
// test the thing class
//
#include <iostream.h>
#include "thing1.h"
void foo1(thing P) {

  cout << "foo1 does nothing interesting\n";
  }
thing& foo2(thing F) {
  cout << "in  foo2" << endl;
  thing * zot;
  zot = new thing(F);
  cout << "leaving foo2"<<endl;
  return *zot;

  }


main() {

thing Z(10);
	Z.display();
for (int x = 0; x < 5; ++x) {
	Z.append(x);
	Z.display();
	}
	
	cout << "Create W" << endl;
	thing W;
    	W = Z;
	W.display();

// Modify Z and see what W does
	cout << "append to Z\n";
   	Z.append(100);
  	 Z.display();
   	W.display();
// now, remove last item from W and redisplay
   	W.removelast();
   	cout << "watch again\n";
	Z.display();
   	W.display();
// what happens when we pass a thing as a parameter?
	foo1(Z);
   	Z.append(100);
   	Z.display();
   	W.display();
   	W = foo2(Z);
   	W.display();
// use overloaded []
	for (int z=0; z < 3; ++z)
	cout << W[z] << endl;
}