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 3E6913858CDB; Mon,  5 Feb 2024 08:45:26 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 3E6913858CDB
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1707122726;
	bh=uRGVQ5ULrMWmXpFfq99vjIYdE1xWMlosaKKyB5VdtgU=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=vldcX3ADCUEVXoj7aQE3gCTM0QQcijR4CCazL075kT1aZs/qS4A9BTT3rWamf760b
	 40GhMz0OJs1ITVhSTGD/od8y/w+dDpVgJsfRwpE3QTv5/XtMkGsbsF2/MeejUwLbB6
	 30zaVeUtJs1gvzGVDtnkFNn5KHnNG3BuZivDOLsQ=
From: "de34 at live dot cn" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/113563] Rejects capture of `this` in C++23 `this auto`
 lambda
Date: Mon, 05 Feb 2024 08:45:24 +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: 14.0
X-Bugzilla-Keywords: rejects-valid
X-Bugzilla-Severity: normal
X-Bugzilla-Who: de34 at live dot cn
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: cc
Message-ID: <bug-113563-4-hVWKBrdiWB@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-113563-4@http.gcc.gnu.org/bugzilla/>
References: <bug-113563-4@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
List-Id: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113563

Jiang An <de34 at live dot cn> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |de34 at live dot cn

--- Comment #1 from Jiang An <de34 at live dot cn> ---
(In reply to Arthur O'Dwyer from comment #0)
> Btw, I do like that GCC eagerly and SFINAE-friendlily rejects `[&](this T)
> {}`. I hope fixing this bug doesn't require undoing that feature.
> (By "SFINAE-friendly" I mean https://godbolt.org/z/fK4f13343 )
> See also
> https://quuxplusone.github.io/blog/2024/01/23/capturing-lambda-deducing-t=
his/

Hmm... after reading CWG2672
(https://cplusplus.github.io/CWG/issues/2672.html), I think the
SFINAE-friendliness is actually required since the parameter list of a lamb=
da
expression is in the immediate context (only the lambda body is excluded).=