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From: "jvdelisle at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/99711] Crash when reading an allocated character array in namelist
Date: Tue, 23 Mar 2021 02:29:12 +0000 [thread overview]
Message-ID: <bug-99711-4-If8POzV0w0@http.gcc.gnu.org/bugzilla/> (raw)
In-Reply-To: <bug-99711-4@http.gcc.gnu.org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99711
Jerry DeLisle <jvdelisle at gcc dot gnu.org> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|INVALID |---
Last reconfirmed| |2021-03-23
Status|RESOLVED |NEW
Ever confirmed|0 |1
--- Comment #3 from Jerry DeLisle <jvdelisle at gcc dot gnu.org> ---
(In reply to kargl from comment #2)
> (In reply to Jerry DeLisle from comment #1)
> > F2018 standard section 13.10.3 List-directed Input
> >
> > There is a note NOTE 13.29 at the end of the first sub-section 13.10.3.1"
> >
> > "An allocatable, deferred-length character effective item does not have its
> > allocation status or allocated length changed as a result of list-directed
> > input."
> >
> > This implies that if the strings of the array are not already allocated to a
> > resonable length, for example a string of blanks, then the read will attempt
> > to transfer the file contents into unallocated strings.
>
> Doesn't the line
>
> allocate( character(len=10) :: cbulist_ru(5) )
>
> that is the first executable statement in the program
> allocate an array of 5 strings with length 10?
You are right Steve, tired eyes were "seeing" only the declaration. In that
case this should be OK and I do see the segfault. It is likely a front end
issue.
next prev parent reply other threads:[~2021-03-23 2:29 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-03-22 14:02 [Bug fortran/99711] New: " phil1691 at gmail dot com
2021-03-23 1:11 ` [Bug fortran/99711] " jvdelisle at gcc dot gnu.org
2021-03-23 2:11 ` kargl at gcc dot gnu.org
2021-03-23 2:29 ` jvdelisle at gcc dot gnu.org [this message]
2021-03-23 2:41 ` jvdelisle at gcc dot gnu.org
2021-03-23 6:16 ` sgk at troutmask dot apl.washington.edu
2021-03-23 7:37 ` philippe.wautelet at aero dot obs-mip.fr
2021-03-24 2:41 ` jvdelisle at gcc dot gnu.org
2021-03-24 3:15 ` jvdelisle at gcc dot gnu.org
2021-03-24 5:35 ` sgk at troutmask dot apl.washington.edu
2021-03-24 5:45 ` sgk at troutmask dot apl.washington.edu
2021-03-25 3:32 ` jvdelisle at gcc dot gnu.org
2021-03-26 1:47 ` jvdelisle at gcc dot gnu.org
2021-03-26 2:25 ` jvdelisle at gcc dot gnu.org
2021-03-26 2:38 ` jvdelisle at gcc dot gnu.org
2021-03-26 6:04 ` sgk at troutmask dot apl.washington.edu
2021-03-26 23:38 ` jvdelisle at gcc dot gnu.org
2021-03-27 3:14 ` jvdelisle at gcc dot gnu.org
2023-08-31 12:58 ` philippe.wautelet at aero dot obs-mip.fr
2023-08-31 17:20 ` sgk at troutmask dot apl.washington.edu
2023-08-31 17:22 ` kargl at gcc dot gnu.org
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