From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id D0E793858C2C; Tue, 2 Jan 2024 16:47:43 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org D0E793858C2C DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1704214063; bh=SKIoFC9EZ3QQBb90V7xd+UH3NAcX9VOFvgns/dSMP54=; h=From:To:Subject:Date:In-Reply-To:References:From; b=C4Q1nVqm/xXY3uNcuwwM/L2hrfxMjW1qYsSfGclSq31aJgnXngFYV2WduQI1WVuJh XYmR6WlSxrM3JTAuJBQmF5zmbHe0PEQg6ECUJOo2j/AnYas1ZPYPJ2pAVjPkg8ioWl vSnhR1stJJ4Tz+zZQ+w1IS1JC3f9ci5jq/j24LvQ= From: "pinskia at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug libstdc++/113200] std::char_traits::move is not constexpr when the argument is a string literal Date: Tue, 02 Jan 2024 16:47:43 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: libstdc++ X-Bugzilla-Version: 13.2.0 X-Bugzilla-Keywords: rejects-valid X-Bugzilla-Severity: normal X-Bugzilla-Who: pinskia 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: component Message-ID: In-Reply-To: References: 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: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D113200 Andrew Pinski changed: What |Removed |Added ---------------------------------------------------------------------------- Component|c++ |libstdc++ --- Comment #2 from Andrew Pinski --- I take that back, clang provideds a better error message on why `&a =3D=3D "string"` is not constexpr: ``` /opt/compiler-explorer/gcc-snapshot/lib/gcc/x86_64-linux-gnu/14.0.0/../../.= ./../include/c++/14.0.0/bits/char_traits.h:230:13: note: comparison of addresses of literals has unspecified value 230 | if (__s1 =3D=3D __s2) // unlikely, but saves a lot of work | ^ ```=