libvirt/gnulib/tests/test-gettimeofday.c

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/*
* Copyright (C) 2005, 2007 Free Software Foundation
* Written by Jim Meyering.
*
* 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 <http://www.gnu.org/licenses/>. */
#include <config.h>
#include <sys/time.h>
#include <time.h>
#include <stdio.h>
#include <string.h>
int
main (int argc, char *argv[])
{
time_t t = 0;
struct tm *lt;
struct tm saved_lt;
struct timeval tv;
lt = localtime (&t);
saved_lt = *lt;
gettimeofday (&tv, NULL);
if (memcmp (lt, &saved_lt, sizeof (struct tm)) != 0)
{
fprintf (stderr, "gettimeofday still clobbers the localtime buffer!\n");
return 1;
}
else
{
return 0;
}
}