#include <iostream>
#include <list>

using namespace std;

void printList(const list<int> &A)
{
  for(list<int>::const_iterator iter = A.begin();iter != A.end();iter++)
    cout << *iter << " ";
}

void testCopy(list<int> A) {
  A.push_back(10);
  A.push_front(-1);
  cout << "After pass by value: ";
  printList(A);
  cout << endl;
}

void main()
{
  list<int> one;

  // Test copy of empty list
  list<int> *two = new list<int>(one);
  cout << "Printing copy of empty list: ";
  printList(*two);
  cout << endl;

  two->push_back(2);
  two->push_back(2);

  cout << "After adding 2,2 to copy: ";
  printList(*two);
  cout << endl;

  // Test copy of non-empty list
  one.push_front(1);
  one.push_back(1);

  list<int> three(one);
  cout << "Printing copy of non-empty list: ";
  printList(three);
  cout << endl;

  three.push_back(3);
  three.push_front(3);

  cout << "After adding 3,3 to copy: ";
  printList(three);
  cout << endl;

  // Test operator=
  *two = three;
  three.push_back(0);
  cout << "After operator=: ";
  printList(*two);
  cout << endl;

  // Test parameter passing with value parameter
  testCopy(one);
}