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 A0DF13858D35; Sat, 15 Jan 2022 09:19:55 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A0DF13858D35
From: "bugzilla at cems dot de" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug c++/104041] static_assert failure triggered by non-selected
 template specialization
Date: Sat, 15 Jan 2022 09:19:55 +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: 11.2.0
X-Bugzilla-Keywords: 
X-Bugzilla-Severity: normal
X-Bugzilla-Who: bugzilla at cems dot de
X-Bugzilla-Status: RESOLVED
X-Bugzilla-Resolution: FIXED
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: resolution
Message-ID: <bug-104041-4-GTyuwxhA7S@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-104041-4@http.gcc.gnu.org/bugzilla/>
References: <bug-104041-4@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: Sat, 15 Jan 2022 09:19:55 -0000

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D104041

bugzilla at cems dot de changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|INVALID                     |FIXED

--- Comment #2 from bugzilla at cems dot de ---
(In reply to Andrew Pinski from comment #1)
> Since the value that is done in the static_assert is not value dependent,=
 it
> is rejected at the definition time of C<T>::C<T>.
>=20
> This is correct.=20

So if I replace the condition in the static_assert by something which is va=
lue
dependent,it will not be triggered in an unselected specialization even if =
the
condition is always false, e.g.:

static_assert(sizeof(T) < 0, "C<T> selected");

OK, thanks.=