Nested Classes cont.

• Node constructor initializes node's item member to i, and sets the next pointer to NULL.

  • bool Queue::enqueue(const Item & item)
  • {
  • if (isfull( ) ) return false;
  • Node * add = new Node(item); // create, init node
  • if ( add == 0) return false; // quit if none avail.
  • ...
  • }