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/* Implementation of the ISO_C_BINDING library helper functions.
Copyright (C) 2007-2016 Free Software Foundation, Inc.
Contributed by Christopher Rickett.
This file is part of the GNU Fortran runtime library (libgfortran).
Libgfortran is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public
License as published by the Free Software Foundation; either
version 3 of the License, or (at your option) any later version.
Libgfortran is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
Under Section 7 of GPL version 3, you are granted additional
permissions described in the GCC Runtime Library Exception, version
3.1, as published by the Free Software Foundation.
You should have received a copy of the GNU General Public License and
a copy of the GCC Runtime Library Exception along with this program;
see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
<http://www.gnu.org/licenses/>. */
/* Implement the functions and subroutines provided by the intrinsic
iso_c_binding module. */
#include "libgfortran.h"
#include "iso_c_binding.h"
#include <stdlib.h>
/* Set the fields of a Fortran pointer descriptor to point to the
given C address. It uses c_f_pointer_u0 for the common
fields, and will set up the information necessary if this C address
is to an array (i.e., offset, type, element size). The parameter
c_ptr_in represents the C address to have Fortran point to. The
parameter f_ptr_out is the Fortran pointer to associate with the C
address. The parameter shape is a one-dimensional array of integers
specifying the upper bound(s) of the array pointed to by the given C
address, if applicable. The shape parameter is optional in Fortran,
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