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419af57c | 1 | /* Implementation of the is_contiguous intrinsic. |
7adcbafe | 2 | Copyright (C) 2019-2022 Free Software Foundation, Inc. |
419af57c TK |
3 | Contributed by Thomas König <tkoenig@gcc.gnu.org> |
4 | ||
5 | This file is part of the GNU Fortran runtime library (libgfortran). | |
6 | ||
7 | Libgfortran is free software; you can redistribute it and/or | |
8 | modify it under the terms of the GNU General Public | |
9 | License as published by the Free Software Foundation; either | |
10 | version 3 of the License, or (at your option) any later version. | |
11 | ||
12 | Libgfortran is distributed in the hope that it will be useful, | |
13 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | GNU General Public License for more details. | |
16 | ||
17 | Under Section 7 of GPL version 3, you are granted additional | |
18 | permissions described in the GCC Runtime Library Exception, version | |
19 | 3.1, as published by the Free Software Foundation. | |
20 | ||
21 | You should have received a copy of the GNU General Public License and | |
22 | a copy of the GCC Runtime Library Exception along with this program; | |
23 | see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | <https://www.gnu.org/licenses/>. */ | |
25 | ||
26 | #include "libgfortran.h" | |
27 | ||
28 | GFC_LOGICAL_4 | |
29 | is_contiguous0 (const array_t * const restrict array) | |
30 | { | |
31 | index_type dim; | |
32 | index_type n; | |
33 | index_type extent, stride; | |
34 | ||
35 | dim = GFC_DESCRIPTOR_RANK (array); | |
36 | ||
37 | extent = 1; | |
38 | for (n = 0; n < dim; n++) | |
39 | { | |
40 | stride = GFC_DESCRIPTOR_STRIDE (array, n); | |
41 | if (stride != extent) | |
42 | return 0; | |
43 | ||
44 | extent *= GFC_DESCRIPTOR_EXTENT (array, n); | |
45 | } | |
46 | ||
47 | return 1; | |
48 | } | |
49 | iexport(is_contiguous0); |