1 /* Test strftime and strptime after 2038-01-19 03:14:07 UTC (bug 30053).
2 Copyright (C) 2023-2024 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
23 #include <support/check.h>
28 TEST_VERIFY_EXIT (setenv ("TZ", "UTC0", 1) == 0);
30 if (sizeof (time_t) > 4)
32 time_t wrap = (time_t) 2147483648LL;
34 struct tm *tm = gmtime (&wrap);
35 TEST_VERIFY_EXIT (tm != NULL);
36 TEST_VERIFY_EXIT (strftime (buf, sizeof buf, "%s", tm) > 0);
38 TEST_VERIFY (strcmp (buf, "2147483648") == 0);
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);
48 FAIL_UNSUPPORTED ("32-bit time_t");
52 #include <support/test-driver.c>