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41349f6f | 1 | /* Test strftime and strptime after 2038-01-19 03:14:07 UTC (bug 30053). |
dff8da6b | 2 | Copyright (C) 2023-2024 Free Software Foundation, Inc. |
41349f6f AS |
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 | |
17 | <https://www.gnu.org/licenses/>. */ | |
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", "UTC0", 1) == 0); | |
29 | tzset (); | |
30 | if (sizeof (time_t) > 4) | |
31 | { | |
32 | time_t wrap = (time_t) 2147483648LL; | |
33 | char buf[80]; | |
34 | struct tm *tm = gmtime (&wrap); | |
35 | TEST_VERIFY_EXIT (tm != NULL); | |
36 | TEST_VERIFY_EXIT (strftime (buf, sizeof buf, "%s", tm) > 0); | |
37 | puts (buf); | |
38 | TEST_VERIFY (strcmp (buf, "2147483648") == 0); | |
39 | ||
40 | struct tm tm2; | |
41 | char *p = strptime (buf, "%s", &tm2); | |
42 | TEST_VERIFY_EXIT (p != NULL && *p == '\0'); | |
43 | time_t t = mktime (&tm2); | |
44 | printf ("%lld\n", (long long) t); | |
45 | TEST_VERIFY (t == wrap); | |
46 | } | |
47 | else | |
48 | FAIL_UNSUPPORTED ("32-bit time_t"); | |
49 | return 0; | |
50 | } | |
51 | ||
52 | #include <support/test-driver.c> |