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/* Test of time() function.
Copyright (C) 2023 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. */
#include <config.h>
#include <time.h>
#include "signature.h"
SIGNATURE_CHECK (time, time_t, (time_t *));
#include <sys/time.h>
#include "macros.h"
int
main (void)
{
/* Check consistency of time() with gettimeofday().tv_sec. */
struct timeval tv1;
struct timeval tv2;
time_t tt3;
/* Wait until gettimeofday() reports an increase in tv_sec. */
ASSERT (gettimeofday (&tv1, NULL) == 0);
do
ASSERT (gettimeofday (&tv2, NULL) == 0);
while (tv2.tv_sec == tv1.tv_sec);
/* We are now at the beginning of a second. Test whether time() reports
the new second or the previous one. */
tt3 = time (NULL);
ASSERT (tt3 >= tv2.tv_sec);
return 0;
}
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