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/* Test gmtime_r().
Copyright (C) 2024-2025 Free Software Foundation, Inc.
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <https://www.gnu.org/licenses/>. */
/* Written by Bruno Haible <bruno@clisp.org>, 2024. */
#include <config.h>
/* Specification. */
#include <time.h>
#include <string.h>
#include "macros.h"
int
main (void)
{
{
time_t t = 1509000003; /* 2017-10-26 06:40:03 */
struct tm tm;
struct tm *result = gmtime_r (&t, &tm);
ASSERT (result == &tm);
ASSERT (result->tm_sec == 3);
ASSERT (result->tm_min == 40);
ASSERT (result->tm_hour == 6);
ASSERT (result->tm_mday == 26);
ASSERT (result->tm_mon == 10 - 1);
ASSERT (result->tm_year == 2017 - 1900);
ASSERT (result->tm_wday == 4);
ASSERT (result->tm_yday == 298);
ASSERT (result->tm_isdst == 0);
#if HAVE_STRUCT_TM_TM_GMTOFF /* glibc, musl, macOS, FreeBSD, NetBSD, OpenBSD, Minix, Cygwin, Android */
ASSERT (result->tm_gmtoff == 0);
#endif
#if HAVE_STRUCT_TM_TM_ZONE /* glibc, musl, macOS, FreeBSD, NetBSD, OpenBSD, Minix, Cygwin, Android */
printf ("tm_zone = %s\n", result->tm_zone == NULL ? "(null)" : result->tm_zone);
ASSERT (strcmp (result->tm_zone, "GMT") == 0 /* glibc, NetBSD, OpenBSD, Minix, Cygwin, Android */
|| strcmp (result->tm_zone, "UTC") == 0 /* musl, macOS, FreeBSD */);
#endif
}
return test_exit_status;
}
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