[Bug c++/90880] compile error instead of SFINAE with non-public member variables

[redi at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=90880

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Keywords|                            |rejects-valid
             Status|UNCONFIRMED                 |NEW
   Last reconfirmed|                            |2019-06-13
     Ever confirmed|0                           |1

--- Comment #2 from Jonathan Wakely <redi at gcc dot gnu.org> ---
(In reply to Federico Kircheis from comment #1)
> After researching a little bit more, I've convinced myself that
> `status<c1>::value` should be false, as `decltype` has no special rules for
> accessing private data, thus clang is correct.

Agreed. And G++ should accept it.