From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
 id E11AF3857C78; Thu, 26 Aug 2021 23:14:05 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E11AF3857C78
From: "redi at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/101243] Coroutine lambda capture is destroyed twice
Date: Thu, 26 Aug 2021 23:14:05 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: c++
X-Bugzilla-Version: 11.1.0
X-Bugzilla-Keywords: wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: redi at gcc dot gnu.org
X-Bugzilla-Status: UNCONFIRMED
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: unassigned at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-101243-4-Lz8FbnL55B@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-101243-4@http.gcc.gnu.org/bugzilla/>
References: <bug-101243-4@http.gcc.gnu.org/bugzilla/>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
X-Bugzilla-URL: http://gcc.gnu.org/bugzilla/
Auto-Submitted: auto-generated
MIME-Version: 1.0
X-BeenThere: gcc-bugs@gcc.gnu.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: Gcc-bugs mailing list <gcc-bugs.gcc.gnu.org>
List-Unsubscribe: <https://gcc.gnu.org/mailman/options/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=unsubscribe>
List-Archive: <https://gcc.gnu.org/pipermail/gcc-bugs/>
List-Post: <mailto:gcc-bugs@gcc.gnu.org>
List-Help: <mailto:gcc-bugs-request@gcc.gnu.org?subject=help>
List-Subscribe: <https://gcc.gnu.org/mailman/listinfo/gcc-bugs>,
 <mailto:gcc-bugs-request@gcc.gnu.org?subject=subscribe>
X-List-Received-Date: Thu, 26 Aug 2021 23:14:06 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D101243

--- Comment #5 from Jonathan Wakely <redi at gcc dot gnu.org> ---
For the attachment in comment 3 trunk now says:

In file included from /home/jwakely/gcc/12/include/c++/12.0.0/functional:59,
                 from /tmp/pr-1.cc:2:
/home/jwakely/gcc/12/include/c++/12.0.0/bits/std_function.h: In instantiati=
on
of 'std::function<_Res(_ArgTypes ...)>::function(_Functor&&) [with _Functor=
 =3D
f(f()::_Z1fv.frame*)::<lambda()>; <template-parameter-2-2> =3D void; _Res =
=3D void;
_ArgTypes =3D {}]':
/tmp/pr-1.cc:71:13:   required from here
/home/jwakely/gcc/12/include/c++/12.0.0/bits/std_function.h:442:69: error:
static assertion failed: std::function target must be copy-constructible
  442 |=20=20=20=20=20=20=20=20=20=20
static_assert(is_copy_constructible<__decay_t<_Functor>>::value,
      |=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=
=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20=20
^~~~~
/home/jwakely/gcc/12/include/c++/12.0.0/bits/std_function.h:442:69: note:
'std::integral_constant<bool, false>::value' evaluates to false=