[Development] QList

Kuba Ober kuba at mareimbrium.org
Fri Mar 24 01:42:14 CET 2017

23 mars 2017 kl. 17:22 skrev Thiago Macieira <thiago.macieira at intel.com>:
> You're contradicting yourself now. If private inheritance is not is-a, then 
> you can't tell me not to use private inheritance because QString isn't a 
> QStringView.
> I don't want QStringView to appear to users as a base of QString. I just want 
> code reuse.

I agree. Public and non-public derivation in C++ have vastly different meaning. Public derivation means is-a in the technical sense of LSP. Non-public derivation is an implementation detail that expresses has-a in a way that allows easier use or re-exposure of the members of the base class. It has to do with semantics of C++ and has zilch to do with OO design.

Cheers, Kuba

More information about the Development mailing list