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From: "burnus at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org>
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Subject: [Bug fortran/92482] BIND(C) with array-descriptor mishandled for
 type character
Date: Tue, 31 Aug 2021 10:52:26 +0000
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https://gcc.gnu.org/bugzilla/show_bug.cgi?id=3D92482

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

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Last reconfirmed|                            |2021-08-31
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |NEW

--- Comment #6 from Tobias Burnus <burnus at gcc dot gnu.org> ---
With my bind-C array descriptor patch, all tests except of=20
strg_print_2("abc").
(To be submitted; I will include this testcase as
gfortran.dg/bind-c-char-descr.f90
with the failing test commented.)

The still FAILING testcase does *not* use BIND(C) - and only TYPE(*) with
assumed-rank:=20
That test passes this string to a gfortran array descriptor for type:
  type(*), target, intent(in) :: this(..)
which is then
  c_f_pointer(c_loc(this), strn)
to a Fortran pointer.

The call has:

    scalar.4 =3D 97;   // that's  'a' -> expected: "abc".
    desc.3.dtype =3D {.elem_len=3D1, .rank=3D0, .type=3D1}; // not the elem=
_len=3D1;
should be len*kind
    desc.3.data =3D (void *) &scalar.4;
    desc.3.span =3D (integer(kind=3D8)) desc.3.dtype.elem_len;=