From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id BF13F3858022; Thu, 24 Dec 2020 15:52:16 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org BF13F3858022 From: "redi at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/98436] issue with casting member function on linux32 bit only Date: Thu, 24 Dec 2020 15:52:16 +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: 7.4.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: redi 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: 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: Thu, 24 Dec 2020 15:52:16 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98436 --- Comment #6 from Jonathan Wakely --- (In reply to Samuel Benjamin from comment #4) > I got your point, But why is this working with 64bit and other gcc versio= ns > other than 7.4.0 - 32 bit ? Undefined behaviour means anything can happen, including appearing to work = as you expect. Implementing C++ member functions as non-member functions is indeed undefin= ed behaviour. Even naming your function "_ZN7MyClass17myUndefinedMethodEv" is undefined, because that's a reserved name.=