[Bug fortran/36058] Not allowing pointers to derived types in COMMON

["burnus at gcc dot gnu dot org" <gcc-bugzilla@gcc.gnu.org>]

------- Comment #4 from burnus at gcc dot gnu dot org  2008-04-29 05:21 -------
Close as INVALID.

Richard Maine wrote in c.l.f (see link above):
------------------------------
> > Contrary to you, my reading is that this applies also to a pointer to
> > a derived type.
>
> I can read it either way,

I don't really see how. I strongly agree with Tobias here. I think you
are confusing an important aspect of Fortran pointers with C ones. In
Fortran, pointer is an attribute. It does *NOT* make a separate type. If
the common-block-object has (derived) type x, then adding the pointer
attribute doesn't change the type. It is still of the same type and thus
the above restriction still applies.

If you try to read such words any other way, I think you'll find that
large parts of the standard fall apart - at least if one tries to apply
the same reading throughout the standard.
------------------------------


-- 

burnus at gcc dot gnu dot org changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |RESOLVED
         Resolution|                            |INVALID


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36058