From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id E5590384BC04; Sun, 19 Apr 2020 17:05:07 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org E5590384BC04 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org; s=default; t=1587315907; bh=6hjg9/xVL7tk45/hWjjdgmUCpKpU6YI++BeXYfAYoIM=; h=From:To:Subject:Date:In-Reply-To:References:From; b=thPWxytoM4VEujj+0uEyIzDNECm/Rm8OC0i022xrZ6o2J+qP1YJ/qCEEC8ryrr/gS 0y8gCUDKn612rPrp6hfy9BtWf5kkaggN0tIIBSXsAl7/47lQZYimZrtdv8YPkcxKOK 4s3RHvLuphH0dAuSXQ2bSB3RkjKYIDvyNyE4ue1s= From: "mpolacek at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/94590] Incorrectly accepts invalid C++11 braced initialisation of double from long double if sizeof(long double)==sizeof(double) Date: Sun, 19 Apr 2020 17:05:07 +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: 10.0 X-Bugzilla-Keywords: accepts-invalid X-Bugzilla-Severity: normal X-Bugzilla-Who: mpolacek at gcc dot gnu.org X-Bugzilla-Status: NEW 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: 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 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: Sun, 19 Apr 2020 17:05:08 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D94590 Marek Polacek changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |mpolacek at gcc dot gnu.org --- Comment #3 from Marek Polacek --- This is because in check_narrowing we have: 1011 else if (TREE_CODE (ftype) =3D=3D REAL_TYPE 1012 && TREE_CODE (type) =3D=3D REAL_TYPE) 1013 { 1014 if (TYPE_PRECISION (type) < TYPE_PRECISION (ftype)) ... 1027 ok =3D false; but with -mlong-double-64 both type and ftype's precision is 64.=