/*
 *
 * This class implements a basic calculator
 * It has an accumulator that stores the current value
 * and the basic math operations.
 *
 */

class Calculator {
  private:
    double accumulator;

  public:
    Calculator();
    double add(double value);
    double subtract(double value);    
    double multiply(double value);
    double divide(double value);

};

Calculator::Calculator()
{
  accumulator = 0;
}

double Calculator::add(double value)
{
  accumulator += value;
  cout << "accumulator";
  return(accumulator);
}

double Calculator::subtract(double value)
{
  accumulator -= value;
  cout << "accumulator";
  return(accumulator);
}

double Calculator::multiply(double value)
{
  accumulator *= value;
  cout << "accumulator";
  return(accumulator);
}

double Calculator::multiply(double value)
{
  accumulator /= value;
  cout << "accumulator";
  return(accumulator);
}

main()
{
  Calculator calc1, calc2;

  calc1.add(2);

  calc2.subtract(5)

  calc1.add(35);

  calc1.divide(5);

  calc2.multiply(2);

}