From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <gcc-bugzilla@gcc.gnu.org>
Received: by sourceware.org (Postfix, from userid 48)
	id B055C3858D3C; Sun, 14 May 2023 01:30:28 +0000 (GMT)
DKIM-Filter: OpenDKIM Filter v2.11.0 sourceware.org B055C3858D3C
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gcc.gnu.org;
	s=default; t=1684027828;
	bh=obTRTMaavtds4Xe6f5Q/uDVr/Pw1vZF28efwuLbOmK0=;
	h=From:To:Subject:Date:In-Reply-To:References:From;
	b=AfFa55TCNNbxH9h0iwNJge4iUluKc7DGXDIwkeBL6dCVA9f7y0rl7jcjScK0pL5Ls
	 Z3P9fiypTCJbsiTLs+7IBUhElmNXsJBBlWVO4l2obnmN5cm8clAlKkLUEYdKJl3ai0
	 rreiFVC0i8pmd/E8ML5ClkveMfy+0w2M0EvAMZ2I=
From: "jvdelisle at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug libfortran/107068] Run-time error when reading logical arrays
 with a namelist
Date: Sun, 14 May 2023 01:30:21 +0000
X-Bugzilla-Reason: CC
X-Bugzilla-Type: changed
X-Bugzilla-Watch-Reason: None
X-Bugzilla-Product: gcc
X-Bugzilla-Component: libfortran
X-Bugzilla-Version: 11.2.0
X-Bugzilla-Keywords: wrong-code
X-Bugzilla-Severity: normal
X-Bugzilla-Who: jvdelisle at gcc dot gnu.org
X-Bugzilla-Status: NEW
X-Bugzilla-Resolution: 
X-Bugzilla-Priority: P3
X-Bugzilla-Assigned-To: jvdelisle at gcc dot gnu.org
X-Bugzilla-Target-Milestone: ---
X-Bugzilla-Flags: 
X-Bugzilla-Changed-Fields: 
Message-ID: <bug-107068-4-SC5pl1f7FU@http.gcc.gnu.org/bugzilla/>
In-Reply-To: <bug-107068-4@http.gcc.gnu.org/bugzilla/>
References: <bug-107068-4@http.gcc.gnu.org/bugzilla/>
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: <gcc-bugs.sourceware.org>

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D107068

--- Comment #6 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
What is happening here is that in the name list input, the variable flp is =
also
a legal LOGICAL value, so our read is interpreting it as the second value of
the array flc and trying to continue to read values for flc. It encounters =
the
( and throws the error.

To resolve this, I think I will have to check for a valid variable name for
each value.

[aside: A lot of these issues stem from the weaknesses in how namelists are
interpreted.  There are ambiguities in the specification.]

My next step here is to go through the F2018 standard just to make sure wha=
t we
do is valid or invalid. (cheers)=