From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id A4DDC395BC29; Thu, 27 May 2021 20:39:44 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org A4DDC395BC29 From: "dje at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/100805] New: __int128 should be disabled for non-extended -std= options Date: Thu, 27 May 2021 20:39:44 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: new X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: c++ X-Bugzilla-Version: unknown X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: dje 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: bug_id short_desc product version bug_status bug_severity priority component assigned_to reporter target_milestone Message-ID: 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Thu, 27 May 2021 20:39:44 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D100805 Bug ID: 100805 Summary: __int128 should be disabled for non-extended -std=3D options Product: gcc Version: unknown Status: UNCONFIRMED Severity: normal Priority: P3 Component: c++ Assignee: unassigned at gcc dot gnu.org Reporter: dje at gcc dot gnu.org Target Milestone: --- The __int128 extended type should not be enabled in strict standard mode, e= .g., not gnu extended standard. auto typechk =3D 0 ? 9223372036854775808 : -1; unsigned long &typechk_p =3D &typeck; 64 bit mode: error: cannot convert `__int128*' to `long unsigned int*' in initialization 32 bit mode: error: invalid conversion from `long long int*' to `long long unsigned int*' [-fpermissive] using a signed type that is too small to preserve the value. It seems that promoting the value to a type that is an extension is incorre= ct in strict standard mode.=