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4ee9c684 | 1 | /* Implementation of the ASSOCIATED intrinsic |
fbd26352 | 2 | Copyright (C) 2003-2019 Free Software Foundation, Inc. |
4ee9c684 | 3 | Contributed by kejia Zhao (CCRG) <kejia_zh@yahoo.com.cn> |
4 | ||
b417ea8c | 5 | This file is part of the GNU Fortran 95 runtime library (libgfortran). |
4ee9c684 | 6 | |
b417ea8c | 7 | Libgfortran is free software; you can redistribute it and/or |
8 | modify it under the terms of the GNU General Public | |
4ee9c684 | 9 | License as published by the Free Software Foundation; either |
6bc9506f | 10 | version 3 of the License, or (at your option) any later version. |
b417ea8c | 11 | |
12 | Libgfortran is distributed in the hope that it will be useful, | |
4ee9c684 | 13 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
14 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
b417ea8c | 15 | GNU General Public License for more details. |
4ee9c684 | 16 | |
6bc9506f | 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 | <http://www.gnu.org/licenses/>. */ | |
4ee9c684 | 25 | |
26 | #include "libgfortran.h" | |
27 | ||
c1c66d1d | 28 | extern int associated (const gfc_array_void *, const gfc_array_void *); |
7b6cb5bd | 29 | export_proto(associated); |
4ee9c684 | 30 | |
c1c66d1d | 31 | int |
4ee9c684 | 32 | associated (const gfc_array_void *pointer, const gfc_array_void *target) |
33 | { | |
34 | int n, rank; | |
35 | ||
8be94ca9 | 36 | if (GFC_DESCRIPTOR_DATA (pointer) == NULL) |
37 | return 0; | |
4ee9c684 | 38 | if (GFC_DESCRIPTOR_DATA (pointer) != GFC_DESCRIPTOR_DATA (target)) |
62aeabf1 | 39 | return 0; |
d9c7c3e3 | 40 | if (GFC_DESCRIPTOR_DTYPE (pointer).elem_len != GFC_DESCRIPTOR_DTYPE (target).elem_len) |
41 | return 0; | |
42 | if (GFC_DESCRIPTOR_DTYPE (pointer).type != GFC_DESCRIPTOR_DTYPE (target).type) | |
62aeabf1 | 43 | return 0; |
4ee9c684 | 44 | |
45 | rank = GFC_DESCRIPTOR_RANK (pointer); | |
46 | for (n = 0; n < rank; n++) | |
47 | { | |
827aef63 | 48 | long extent; |
49 | extent = GFC_DESCRIPTOR_EXTENT(pointer,n); | |
8ccc9789 | 50 | |
827aef63 | 51 | if (extent != GFC_DESCRIPTOR_EXTENT(target,n)) |
62aeabf1 | 52 | return 0; |
827aef63 | 53 | if (GFC_DESCRIPTOR_STRIDE(pointer,n) != GFC_DESCRIPTOR_STRIDE(target,n) && extent != 1) |
62aeabf1 | 54 | return 0; |
827aef63 | 55 | if (extent <= 0) |
55bbde52 | 56 | return 0; |
4ee9c684 | 57 | } |
58 | ||
62aeabf1 | 59 | return 1; |
4ee9c684 | 60 | } |