[Bug c++/102168] -Wnon-virtual-dtor shouldn't fire for protected dtor in a class with a friend declaration

pdimov at gmail dot com gcc-bugzilla@gcc.gnu.org
Mon Jun 6 14:03:38 GMT 2022


--- Comment #6 from Peter Dimov <pdimov at gmail dot com> ---
Yes, I suppose you're right. The warning warns that Derived _can be_ deleted
via Base*, and that's correct - if not very useful in practice in this specific

In fact the private destructor case is even less useful. ~Derived won't compile
unless it's Derived that is Base's friend, in which case everything is actually

I suppose we'll have to live with it. The annoying part is that there's no
warning, and then you add an unrelated friend declaration while refactoring,
and the warning appears.

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