From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: by sourceware.org (Postfix, from userid 48) id 224A0384241B; Sun, 27 Dec 2020 21:59:19 +0000 (GMT) DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org 224A0384241B From: "kargl at gcc dot gnu.org" To: gcc-bugs@gcc.gnu.org Subject: [Bug fortran/98454] Apparent wrong initialization in function result Date: Sun, 27 Dec 2020 21:59:18 +0000 X-Bugzilla-Reason: CC X-Bugzilla-Type: changed X-Bugzilla-Watch-Reason: None X-Bugzilla-Product: gcc X-Bugzilla-Component: fortran X-Bugzilla-Version: 9.3.0 X-Bugzilla-Keywords: X-Bugzilla-Severity: normal X-Bugzilla-Who: kargl at gcc dot gnu.org X-Bugzilla-Status: NEW X-Bugzilla-Resolution: X-Bugzilla-Priority: P4 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: Sun, 27 Dec 2020 21:59:19 -0000 https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D98454 --- Comment #4 from kargl at gcc dot gnu.org --- (In reply to anlauf from comment #2) > I think there already exists at least one PR with issues with initializer= s. >=20 > A reduced testcase shows that default initialization works for intent(out= ), > whereas you get random junk for function results. (code elide) > If you need a workaround, uncomment the indicated line. The code is invalid Fortran. gfortran can do anything. Your work around is invalid. gfortran can do anything. >>From Fortran 2018: "If the function result is not a pointer, its value shall be defined by the function." and "A derived-type scalar object is defined if and only if all of its nonpointer components are defined." Should be closed as invalid as the original code contains a number of issues caused by invalid code.=