/****************************************************************
 ****
 **** This file belongs with the course
 **** Introduction to Scientific Programming in C++/Fortran2003
 **** copyright 2016/7 Victor Eijkhout eijkhout@tacc.utexas.edu
 ****
 **** swapusing.cxx : undefined swap gives compilation error
 ****
 ****************************************************************/

//codesnippet swapusing
#include <iostream>
using std::cout;

def swop(int i,int j) {};

int main() {
  int i=1,j=2;
  swap(i,j);
  cout << i << '\n';
  return 0;
}
//codesnippet end