> On Aug 10, 2022, at 9:25 PM, Andrew Pinski <pins...@gmail.com> wrote:
>
> On Wed, Aug 10, 2022 at 6:20 PM Paul Koning via Gcc <gcc@gcc.gnu.org> wrote:
>>
>> There's a C++ problem I keep running into, in a very large body of software
>> with lots of subclassing.
>>
>> There's a base class that defines a set of interface methods, not all pure
>> virtual (some define the default behavior). A number of subclasses override
>> some but not all of these.
>>
>> Now I find myself changing the argument list of some of these methods, so I
>> have to change the base class definitions and also track down all the
>> subclass redefinitions. If I miss one of the latter, that subclass method
>> is no longer called (it now just looks like an unrelated method with a
>> different argument list that isn't used anywhere). Finding these things can
>> be hard and time consuming.
>>
>> It would be helpful to have some way to mark a method as "this is supposed
>> to be an override of a base class method", in other words "warn me if this
>> method doesn't override some method in a base class".
>
> C++11's overload keyword sounds exactly what you want.
> https://en.cppreference.com/w/cpp/language/override
Perfect! Thanks much.
paul
