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From: "markeggleston at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/96583] New: F2018 changes to get_environment_variable
Date: Wed, 12 Aug 2020 07:15:01 +0000
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X-Bugzilla-Version: 11.0
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D96583

            Bug ID: 96583
           Summary: F2018 changes to get_environment_variable
           Product: gcc
           Version: 11.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: fortran
          Assignee: unassigned at gcc dot gnu.org
          Reporter: markeggleston at gcc dot gnu.org
            Blocks: 85836
  Target Milestone: ---

Fortran 2003 and Fortran 2008:

Arguments LENGTH and STATUS shall be default integer scalars.

Fortran 2018:

Arguments LENGTH and STATUS shall be a scalars of type integer with a decim=
al
exponent range of at least four.

New argument:

ERRMSG (optional) shall be a default character scalar. It is an INTENT (INO=
UT)
argument. It is assigned a processor-dependent explanatory message if the
optional argument STATUS is, or would be if present, assigned a positive va=
lue.
Otherwise, it is unchanged. Not currently supported by gfortran 11.

---

For -std=3Df2003 and -std=3Df2008 LENGTH and STATUS arguments should be rej=
ected if
they are not default integer scalars, gfortran 11 produces "type mismatch in
argument" error messages.

For -std=3Df2018 and -std=3Dgnu LENGTH and STATUS arguments should only be =
rejected
if the is integer(1).


Referenced Bugs:

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D85836
[Bug 85836] [meta-bug] Fortran 2018 support=