49 lines
1.4 KiB
C
49 lines
1.4 KiB
C
/* Test of time() function.
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Copyright (C) 2023-2025 Free Software Foundation, Inc.
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This program is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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This program 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
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>. */
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/* Written by Bruno Haible. */
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#include <config.h>
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#include <time.h>
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#include "signature.h"
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SIGNATURE_CHECK (time, time_t, (time_t *));
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#include <sys/time.h>
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#include "macros.h"
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int
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main (void)
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{
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/* Check consistency of time() with gettimeofday().tv_sec. */
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struct timeval tv1;
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struct timeval tv2;
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time_t tt3;
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/* Wait until gettimeofday() reports an increase in tv_sec. */
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ASSERT (gettimeofday (&tv1, NULL) == 0);
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do
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ASSERT (gettimeofday (&tv2, NULL) == 0);
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while (tv2.tv_sec == tv1.tv_sec);
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/* We are now at the beginning of a second. Test whether time() reports
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the new second or the previous one. */
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tt3 = time (NULL);
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ASSERT (tt3 >= tv2.tv_sec);
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return test_exit_status;
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}
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