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