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From: "burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
To: gcc-bugs@gcc.gnu.org
Subject: [Bug fortran/56808] New: Coarray: Wrongly accepts coindexed arguments to INTENT(OUT) dummies
Date: Tue, 02 Apr 2013 08:02:00 -0000
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X-Bugzilla-Product: gcc
X-Bugzilla-Component: fortran
X-Bugzilla-Keywords: accepts-invalid
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56808

             Bug #: 56808
           Summary: Coarray: Wrongly accepts coindexed arguments to
                    INTENT(OUT) dummies
    Classification: Unclassified
           Product: gcc
           Version: 4.9.0
            Status: UNCONFIRMED
          Keywords: accepts-invalid
          Severity: normal
          Priority: P3
         Component: fortran
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: burnus@gcc.gnu.org


Found at
https://groups.google.com/forum/?fromgroups=#!topic/comp.lang.fortran/-oUZRIdRCcg


For obvious reasons, the following is invalid, but it is accepted:

"If the actual argument is a coindexed object with an allocatable ultimate
component, the dummy argument shall have the INTENT (IN) or the VALUE
attribute." (12.5.2.4 Ordinary dummy variables)

 real(kind=4),allocatable :: grt(:,:,:)[:,:,:]
 call cgca_rt(grt(i,:,:)[1,1,1])
contains
 subroutine cgca_rt(r)
 real(kind=4),intent(out) :: r(3,3)
end
end