// File:  ex2-2.cpp   Reference Variables - function parameters

#include <iostream>
using namespace std;

void update_salary(double& sal)
{
  sal *= 1.1;
  return;
}

void display_salary(const double &sal)
{
  cout << sal << endl;
  return;
}

int main (void)
{
  double salary = 50000.;
  display_salary(salary);
  update_salary(salary);
  display_salary(salary);
  return 0;
}