Hiding an inherited public function

[Keenath]

Is it possible for an inheritor class to hide one of its parents' public functions?

I don't mean just replacing the functionality, but to make it such that "Child.X()" is not a valid call, even though "Parent.X()" would be.

An example may make this clearer.

I'm working on a program that calculates a flight path for a small aircraft. The base class is Flight, which has a starting point and an ending point, and has a function called FlightTime that calculates the, well, flight time along a great circle route from A to B.

Then there's a FlightRoute, which inherits Flight. A flight route is a more complicated thing -- it still has a start point and and end point and so on, all inherited from Flight, but a FlightRoute also takes into account the need for fuel stops along the way, and has functions and members to calculate and store a list of those fuel stops.

If I instantiate a FlightRoute object, I have two different sorts of flight time -- A DirectFlightTime function, which is the same as FlightTime, a "nonstop" A-to-B-at-speed-Y sort of thing, and RouteFlightTime, which sums up the flight time from A to stop1, stop1 to stop2, ... , and stopN to B.

So this is the problem: I want that inherited FlightTime function to go away because it has an ambiguous name from the point of view of a FlightRoute. I want to rename it "DirectFlightTime", or create a member function with that name which simply calls MyBase.FlightTime. I want FlightRoute.FlightTime to be an invalid, unknown function, even though Flight.FlightTime is a perfectly valid call.

Is that possible?