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xf.libdd93d52023-05-12 07:10:14 -07001/* Verify that ftime is sane.
2 Copyright (C) 2014-2016 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
18
19#include <sys/timeb.h>
20#include <stdio.h>
21
22static int
23do_test (void)
24{
25 struct timeb prev, curr = {.time = 0, .millitm = 0};
26 int sec = 0;
27
28 while (sec != 3)
29 {
30 prev = curr;
31
32 if (ftime (&curr))
33 {
34 printf ("ftime returned an error\n");
35 return 1;
36 }
37
38 if (curr.time < prev.time)
39 {
40 printf ("ftime's time flowed backwards\n");
41 return 1;
42 }
43
44 if (curr.time == prev.time
45 && curr.millitm < prev.millitm)
46 {
47 printf ("ftime's millitm flowed backwards\n");
48 return 1;
49 }
50
51 if (curr.time > prev.time)
52 sec ++;
53 }
54 return 0;
55}
56
57#define TIMEOUT 3
58#define TEST_FUNCTION do_test ()
59#include "../test-skeleton.c"