Not every data member needs accessor functions
(the Product class did not have a get_score()
function).
Not every get_ function needs a
matching set_ (the Time class can
get_minutes() but not set_minutes()).
Remember that implementation is supposed to be
hidden - just because a class has member functions named
get_ or set_ does not necessarily explain how the
class is designed.
Time::Time(int hour, int min, int sec)
{
time_in_secs = 60 * 60 * hour + 60 * min + sec;
}
int Time::get_minutes() const
{
return (time_in_secs / 60) % 60;
}
int Time::seconds_from(Time t) const
{
return time_in_secs - t.time_in_secs;
}