|
|
|
|
|
|
|
Still another virtue of procedure abstraction is that you
easily can change the way a computation is done. If you decide
to measure size the way the U.S. Postal Service measures size,
instead of by computing volume,
you easily can redefine box_car_volume.
double box_car_volume (double h, double w, double l) {
double result = h + w + l;
cout << "The post-office size is " << result << endl;
return result;
}
At this point, of course, you should also rename your function to bring the name into line with what the function does.