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53 lines
1.6 KiB
C
53 lines
1.6 KiB
C
/* Test strftime and strptime after 2038-01-19 03:14:07 UTC (bug 30053).
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Copyright (C) 2023-2024 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <time.h>
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#include <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include <support/check.h>
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static int
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do_test (void)
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{
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TEST_VERIFY_EXIT (setenv ("TZ", "UTC0", 1) == 0);
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tzset ();
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if (sizeof (time_t) > 4)
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{
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time_t wrap = (time_t) 2147483648LL;
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char buf[80];
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struct tm *tm = gmtime (&wrap);
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TEST_VERIFY_EXIT (tm != NULL);
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TEST_VERIFY_EXIT (strftime (buf, sizeof buf, "%s", tm) > 0);
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puts (buf);
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TEST_VERIFY (strcmp (buf, "2147483648") == 0);
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struct tm tm2;
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char *p = strptime (buf, "%s", &tm2);
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TEST_VERIFY_EXIT (p != NULL && *p == '\0');
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time_t t = mktime (&tm2);
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printf ("%lld\n", (long long) t);
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TEST_VERIFY (t == wrap);
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}
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else
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FAIL_UNSUPPORTED ("32-bit time_t");
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return 0;
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}
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#include <support/test-driver.c>
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