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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/57711] Fortran 4.7.2/4.8.1 error: constraints for functions parameters
Date: Wed, 26 Jun 2013 06:11:00 -0000
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http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57711

Tobias Burnus <burnus at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |burnus at gcc dot gnu.org

--- Comment #2 from Tobias Burnus <burnus at gcc dot gnu.org> ---
First, you have a *serious* bug in JAC/DUMMY_JAC:

Namely, in DUMMY_JAC you have:
    double precision, intent(inout) :: RPAR(:)
    integer, intent(inout) :: IPAR(:)
(Those have ASSUMED-SHAPE arrays)

And in JAC:
          DOUBLE PRECISION, INTENT(INOUT) :: RPAR(*)
          INTEGER, INTENT(INOUT) :: IPAR(*)
(And those are ASSUMED-SIZE arrays.)

But for procedures declarations and its interface declarations, either both or
neither has to use assumed-shape arrays. The compilers passes (internally)
arguments quite differently - thus (unless the compiler detects it) it will
cause problems at run time.


Secondly and regrading gfortran:
* For some reasons, it compiles with GCC 4.7 if one calls D_VODE instead of
VODE.
* The error message for generic matching should be better (cf. PR40276). When
checking the interface of dummy procedure, it should be possible to give always
an error.