// FILE: swap.h
//
//   template <class Item>
//   void swap(Item& x, Item& y)
//     Postcondition: The values of x and y have been interchanged, so that
//     y now has the original value of x, and vice versa. Note: Item may be any
//     of the C++ built-in types (int, char, etc.), or a class with an
//     assignment operator and a default constructor.

#ifndef _SWAP_H  // Prevent duplicate definition
#define _SWAP_H

// remove the following typedef statement
typedef int Item;

// Fill in - add a template prefix.
void swap(Item& x, Item& y);

// Fill in - include the swap implmentation file "swap.tem" 

#endif