[Bug c++/58040] Cannot take address-of public using-declaration of member from protected base class

[redi at gcc dot gnu.org via Gcc-bugs]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=58040

--- Comment #11 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Matt Whitlock from comment #10)
> So using declarations are not a direct replacement for user-defined thunks.

Not even close.