From: Gennadiy Rozental (gennadiy.rozental_at_[hidden])
Date: 2005-01-07 14:30:09
> > Why is it considered better to model a concept rather than inherit from
a
> > base class and override a virtual function? It seems to me that it is
> > simpler to explain to a newcomer to inherit from a class, and it is more
> > apparent from looking at the code what is actually happening.
>
> If I already have a function (object) that provides the desired
> output, why must I create a class, implement a member function
> that forwards to that function(object), and then use the class?
> A simple call to make_filter(f) will do the job without the need
> to write any code.
Innheritance is a strongest relationship and shouldn't be used unless really
needed. That what we learn from the expirience with modern C++ and from C++
experts (see recent Sutter books for example).
Among other things your implementation employ runtime polimorpism for no
particular reason IMO.
Gennadiy