1/* Implementation of the size intrinsic.
2   Copyright (C) 2002-2020 Free Software Foundation, Inc.
3   Contributed by Paul Brook <paul@nowt.org>
4
5This file is part of the GNU Fortran 95 runtime library (libgfortran).
6
7Libgfortran is free software; you can redistribute it and/or
8modify it under the terms of the GNU General Public
9License as published by the Free Software Foundation; either
10version 3 of the License, or (at your option) any later version.
11
12Libgfortran is distributed in the hope that it will be useful,
13but WITHOUT ANY WARRANTY; without even the implied warranty of
14MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15GNU General Public License for more details.
16
17Under Section 7 of GPL version 3, you are granted additional
18permissions described in the GCC Runtime Library Exception, version
193.1, as published by the Free Software Foundation.
20
21You should have received a copy of the GNU General Public License and
22a copy of the GCC Runtime Library Exception along with this program;
23see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
24<http://www.gnu.org/licenses/>.  */
25
26#include "libgfortran.h"
27
28index_type
29size0 (const array_t * array)
30{
31  int n;
32  index_type size;
33  index_type len;
34
35  size = 1;
36  for (n = 0; n < GFC_DESCRIPTOR_RANK (array); n++)
37    {
38      len = GFC_DESCRIPTOR_EXTENT(array,n);
39      if (len < 0)
40        len = 0;
41      size *= len;
42    }
43  return size;
44}
45iexport(size0);
46
47extern index_type size1 (const array_t * array, index_type dim);
48export_proto(size1);
49
50index_type
51size1 (const array_t * array, index_type dim)
52{
53  index_type size;
54
55  dim--;
56
57  size = GFC_DESCRIPTOR_EXTENT(array,dim);
58  if (size < 0)
59    size = 0;
60  return size;
61}
62