Commit | Line | Data |
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b811d2c2 | 1 | ! Copyright 2019-2020 Free Software Foundation, Inc. |
584a927c AB |
2 | ! |
3 | ! This program is free software; you can redistribute it and/or modify | |
4 | ! it under the terms of the GNU General Public License as published by | |
5 | ! the Free Software Foundation; either version 3 of the License, or | |
6 | ! (at your option) any later version. | |
7 | ! | |
8 | ! This program is distributed in the hope that it will be useful, | |
9 | ! but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | ! MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | ! GNU General Public License for more details. | |
12 | ! | |
13 | ! You should have received a copy of the GNU General Public License | |
14 | ! along with this program. If not, see <http://www.gnu.org/licenses/>. | |
15 | ||
16 | program pointers | |
17 | ||
18 | type :: two | |
19 | integer, allocatable :: ivla1 (:) | |
20 | integer, allocatable :: ivla2 (:, :) | |
21 | end type two | |
22 | ||
23 | logical, target :: logv | |
24 | complex, target :: comv | |
25 | character, target :: charv | |
26 | character (len=3), target :: chara | |
27 | integer, target :: intv | |
28 | integer, target, dimension (10,2) :: inta | |
29 | real, target :: realv | |
30 | type(two), target :: twov | |
31 | ||
32 | logical, pointer :: logp | |
33 | complex, pointer :: comp | |
34 | character, pointer :: charp | |
35 | character (len=3), pointer :: charap | |
36 | integer, pointer :: intp | |
37 | integer, pointer, dimension (:,:) :: intap | |
38 | real, pointer :: realp | |
39 | type(two), pointer :: twop | |
40 | ||
41 | nullify (logp) | |
42 | nullify (comp) | |
43 | nullify (charp) | |
44 | nullify (charap) | |
45 | nullify (intp) | |
46 | nullify (intap) | |
47 | nullify (realp) | |
48 | nullify (twop) | |
49 | ||
50 | logp => logv ! Before pointer assignment | |
51 | comp => comv | |
52 | charp => charv | |
53 | charap => chara | |
54 | intp => intv | |
55 | intap => inta | |
56 | realp => realv | |
57 | twop => twov | |
58 | ||
59 | logv = associated(logp) ! Before value assignment | |
60 | comv = cmplx(1,2) | |
61 | charv = "a" | |
62 | chara = "abc" | |
63 | intv = 10 | |
64 | inta(:,:) = 1 | |
65 | inta(3,1) = 3 | |
66 | realv = 3.14 | |
67 | ||
68 | allocate (twov%ivla1(3)) | |
69 | allocate (twov%ivla2(2,2)) | |
70 | twov%ivla1(1) = 11 | |
71 | twov%ivla1(2) = 12 | |
72 | twov%ivla1(3) = 13 | |
73 | twov%ivla2(1,1) = 211 | |
74 | twov%ivla2(2,1) = 221 | |
75 | twov%ivla2(1,2) = 212 | |
76 | twov%ivla2(2,2) = 222 | |
77 | ||
78 | intv = intv + 1 ! After value assignment | |
79 | ||
80 | end program pointers |