mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 05:00:15 +00:00
57 lines
1.7 KiB
C
57 lines
1.7 KiB
C
|
/* Test for ctime
|
||
|
|
Copyright (C) 2021 Free Software Foundation, Inc.
|
||
|
|
This file is part of the GNU C Library.
|
||
|
|
|
||
|
|
The GNU C Library is free software; you can redistribute it and/or
|
||
|
|
modify it under the terms of the GNU Lesser General Public
|
||
|
|
License as published by the Free Software Foundation; either
|
||
|
|
version 2.1 of the License, or (at your option) any later version.
|
||
|
|
|
||
|
|
The GNU C Library 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
|
||
|
|
Lesser General Public License for more details.
|
||
|
|
|
||
|
|
You should have received a copy of the GNU Lesser General Public
|
||
|
|
License along with the GNU C Library; if not, see
|
||
|
|
<https://www.gnu.org/licenses/>. */
|
||
|
|
|
||
|
|
#include <time.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <support/check.h>
|
||
|
|
|
||
|
|
static int
|
||
|
|
do_test (void)
|
||
|
|
{
|
||
|
|
char *str;
|
||
|
|
time_t t;
|
||
|
|
|
||
|
|
/* Use glibc time zone extension "TZ=:" to to guarantee that UTC
|
||
|
|
without leap seconds is used for the test. */
|
||
|
|
TEST_VERIFY_EXIT (setenv ("TZ", ":", 1) == 0);
|
||
|
|
tzset ();
|
||
|
|
|
||
|
|
/* Check if the epoch time can be converted. */
|
||
|
|
t = 0;
|
||
|
|
str = ctime (&t);
|
||
|
|
TEST_COMPARE_STRING (str, "Thu Jan 1 00:00:00 1970\n");
|
||
|
|
|
||
|
|
/* Check if the max time value for 32 bit time_t can be converted. */
|
||
|
|
t = 0x7fffffff;
|
||
|
|
str = ctime (&t);
|
||
|
|
TEST_COMPARE_STRING (str, "Tue Jan 19 03:14:07 2038\n");
|
||
|
|
|
||
|
|
/* Check if we run on port with 32 bit time_t size */
|
||
|
|
time_t tov;
|
||
|
|
if (__builtin_add_overflow (t, 1, &tov))
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
/* Check if the time is converted after 32 bit time_t overflow. */
|
||
|
|
str = ctime (&tov);
|
||
|
|
TEST_COMPARE_STRING (str, "Tue Jan 19 03:14:08 2038\n");
|
||
|
|
|
||
|
|
return 0;
|
||
|
|
}
|
||
|
|
|
||
|
|
#include <support/test-driver.c>
|