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From: "pault at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/112459] gfortran -w option causes derived-type
 finalization at creation time
Date: Thu, 09 Nov 2023 18:18:22 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D112459

Paul Thomas <pault at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2023-11-09
             Status|UNCONFIRMED                 |NEW
     Ever confirmed|0                           |1
             Blocks|                            |37336

--- Comment #2 from Paul Thomas <pault at gcc dot gnu.org> ---
It has been on my TODO list to partially revert the finalization of structu=
re
and array constructors so that gfortran behaves like nagfor and only "knows"
about F2018. Finalization of constructors per se was removed in F2018 for v=
ery
good reasons!

I am still working on the CLASS variants of PR99065. Perhaps I should put t=
hat
on one side and clean up finalization?

@Sebastien - I will have to see what the -w switch does and why it should
affect the code behaviour. I can confirm the behaviour that you describe, as
Harald has already done. The F2003 and F2008 specific parts are blocked by:

if (!gfc_notification_std (GFC_STD_F2018_DEL) && .... Evidently switching o=
ff
the warnings with -w causes this to return true!

Cheers

Paul


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D37336
[Bug 37336] [F03] Finish derived-type finalization=