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From: "pinskia at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/106150] Incorrect error for defaulted anonymous union member
Date: Fri, 01 Jul 2022 01:56:12 +0000	[thread overview]
Message-ID: <bug-106150-4-yir03MFmVn@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-106150-4@http.gcc.gnu.org/bugzilla/>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=106150

Andrew Pinski <pinskia at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
   Last reconfirmed|                            |2022-07-01

--- Comment #3 from Andrew Pinski <pinskia at gcc dot gnu.org> ---
>The following is valid,

No the code is invalid but because of the non-trival deconstructor of V.
Here is an example which is valid (after
https://cplusplus.github.io/CWG/issues/2084.html):
struct S1 {
    S1();
};
struct S {
    S();
};
union U {
    S s{};
    S1 s1;
} u;

The check in GCC for this seems to be off, if only the variant s is there, GCC
(and clang) accepts it.

So the full check for the defect report was never really done (and it was not
even mentioned in the defect report commentary either).

  parent reply	other threads:[~2022-07-01  1:56 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-30 18:45 [Bug c++/106150] New: " jens.maurer at gmx dot net
2022-07-01  1:40 ` [Bug c++/106150] " pinskia at gcc dot gnu.org
2022-07-01  1:43 ` pinskia at gcc dot gnu.org
2022-07-01  1:56 ` pinskia at gcc dot gnu.org [this message]
2022-07-01  1:58 ` [Bug c++/106150] [DR 2084] union with more than one variant and non-trivial constructor is not accepted pinskia at gcc dot gnu.org
2022-07-01  2:05 ` pinskia at gcc dot gnu.org
2022-07-01  6:20 ` jens.maurer at gmx dot net
2022-07-20 21:31 ` redi at gcc dot gnu.org
2022-07-22  7:23 ` redi at gcc dot gnu.org

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