[Bug c++/126131] No way to use designated initializers for anonymous union warning/error free with -std=gnu++20 or later?

"jason at gcc dot gnu.org via Gcc-bugs" <[email protected]> Wed, 05 Aug 2026 14:33:07 +0000

Newsgroups	gmane.comp.gcc.bugs
Message-ID	<[email protected]/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=126131

Jason Merrill <jason at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2026-08-05
             Status|UNCONFIRMED                 |NEW
                 CC|                            |jakub at gcc dot gnu.org,
                   |                            |jason at gcc dot gnu.org
     Ever confirmed|0                           |1
           Keywords|                            |diagnostic

--- Comment #1 from Jason Merrill <jason at gcc dot gnu.org> ---
Hmm, it probably makes sense to omit the warning for a designator in an
anonymous union since it's impossible to designate the anonymous union itself.