/* Author: Yan Huang (01.18.07)
   to show how to use template */

#include <iostream>
#include <string>

template <typename T>
void swap(T &a, T &b) {
  T c = a;
  a = b;
  b = c;
}

void main(){

  int a = 5, b = 6;
  string c = "Huang", d = "Yan";


  swap(a,b);
  cout << " a = 5 and b = 6 " << "after swap " << "a = " << a << " and b = " << b << endl; 
  swap(c,d);
  cout << " c = Huang and d = Yan " << "after swap " << "c = " << c << " and d = " << d << endl; 
}