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/* Implementation of the SHAPE intrinsic

   Copyright 2002, 2006, 2007, 2009, 2010 Free Software Foundation, Inc.

   Contributed by Paul Brook <paul@nowt.org>

This file is part of the GNU Fortran 95 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/>.  */

#include "libgfortran.h"

#include <stdlib.h>

#include <assert.h>

#if defined (HAVE_GFC_INTEGER_4)

extern void shape_4 (gfc_array_i4 * const restrict ret,

        const gfc_array_i4 * const restrict array);

export_proto(shape_4);

void

shape_4 (gfc_array_i4 * const restrict ret,

        const gfc_array_i4 * const restrict array)

{

  int n;

  index_type stride;

  index_type extent;

  int rank;

  rank = GFC_DESCRIPTOR_RANK (array);

  if (ret->data == NULL)

    {

      GFC_DIMENSION_SET(ret->dim[0], 0, rank - 1, 1);

      ret->offset = 0;

      ret->data = internal_malloc_size (sizeof (GFC_INTEGER_4) * rank);

    }

  stride = GFC_DESCRIPTOR_STRIDE(ret,0);

  if (GFC_DESCRIPTOR_EXTENT(ret,0) < 1)

    return;

  for (n = 0; n < rank; n++)

    {

      extent = GFC_DESCRIPTOR_EXTENT(array,n);

      ret->data[n * stride] = extent > 0 ? extent : 0 ;

    }

}

#endif