//-------------------------------------------------------------------------
//
// cbp.cpp
//
// Written by:    Simon Parsons
// Last modified: 24th November 2007

// A program to illustrate call-by-reference using a pointer

//-------------------------------------------------------------------------
//
// Headers

#include <iostream>
using namespace std;

//-------------------------------------------------------------------------
//
// Function definitions

void myfun( int *a ) {
  (*a)++;
  cout << "inside myfun, *a=" << *a << endl;
}

//-------------------------------------------------------------------------
//
// main

int main() {
  int a = 7;
  cout << "before calling myfun, a=" << a << endl;
  myfun( &a );
  cout << "after calling myfun, a=" << a << endl;
}

// end of main()
//
//-------------------------------------------------------------------------