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78274dc8 | 1 | /* Test for localtime bug in year 2039 (bug 22639). |
6d7e8eda | 2 | Copyright (C) 2017-2023 Free Software Foundation, Inc. |
78274dc8 JM |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library is distributed in the hope that it will be useful, | |
11 | but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
78274dc8 JM |
18 | |
19 | #include <time.h> | |
20 | #include <stdlib.h> | |
21 | #include <stdio.h> | |
22 | #include <string.h> | |
23 | #include <support/check.h> | |
24 | ||
25 | static int | |
26 | do_test (void) | |
27 | { | |
28 | TEST_VERIFY_EXIT (setenv ("TZ", "PST8PDT,M3.2.0,M11.1.0", 1) == 0); | |
29 | tzset (); | |
30 | if (sizeof (time_t) > 4) | |
31 | { | |
32 | time_t ouch = (time_t) 2187810000LL; | |
33 | char buf[500]; | |
34 | struct tm *tm = localtime (&ouch); | |
35 | TEST_VERIFY_EXIT (tm != NULL); | |
36 | TEST_VERIFY_EXIT (strftime (buf, sizeof buf, "%Y-%m-%d %H:%M:%S %Z", tm) | |
37 | > 0); | |
38 | puts (buf); | |
39 | TEST_VERIFY (strcmp (buf, "2039-04-30 14:00:00 PDT") == 0); | |
088d3291 AZ |
40 | |
41 | /* Same as before but for localtime_r. */ | |
42 | struct tm tmd; | |
43 | tm = localtime_r (&ouch, &tmd); | |
44 | TEST_VERIFY_EXIT (tm == &tmd); | |
45 | ||
46 | TEST_VERIFY_EXIT (strftime (buf, sizeof buf, "%Y-%m-%d %H:%M:%S %Z", tm) | |
47 | > 0); | |
48 | puts (buf); | |
49 | TEST_VERIFY (strcmp (buf, "2039-04-30 14:00:00 PDT") == 0); | |
78274dc8 JM |
50 | } |
51 | else | |
52 | FAIL_UNSUPPORTED ("32-bit time_t"); | |
53 | return 0; | |
54 | } | |
55 | ||
56 | #include <support/test-driver.c> |