[Bug c++/56556] Wshadow warns for private members in base classes

["redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=56556

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Ever confirmed|0                           |1
             Status|RESOLVED                    |NEW
         Resolution|INVALID                     |---
   Last reconfirmed|                            |2022-02-04
           Severity|normal                      |enhancement
           Keywords|                            |diagnostic

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> ---
The problem with -Wshadow=local is that it doesn't warn about this either:

class Derived {
        int x;
        Derived(int x) {}
};

And you might want a warning there, just not for the case where 'x' is a
private member in some base.

I think I agree with David that this shouldn't warn in the first place, you
shouldn't need to work around it.

I understand Andrew's explanation, but that's the reason GCC behaves like this
today, not a reason it *should* behave like this.