51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/* Test of largefile module.
|
|
Copyright (C) 2023-2025 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 <bruno@clisp.org>, 2023. */
|
|
|
|
/* This test may fail if AC_SYS_LARGEFILE could not arrange for a 64-bit off_t.
|
|
This should be rare, though: only very old systems don't have support for
|
|
files larger than 2 GiB. */
|
|
|
|
#include <config.h>
|
|
|
|
#include <sys/types.h>
|
|
#include <sys/stat.h>
|
|
#include "intprops.h"
|
|
|
|
/* Although these tests could be done with static_assert, the test
|
|
harness prefers dynamic checking. */
|
|
|
|
int
|
|
main (void)
|
|
{
|
|
int result = 0;
|
|
|
|
/* Check the range of off_t.
|
|
With MSVC, this test succeeds only thanks to the 'sys_types' module. */
|
|
if (TYPE_MAXIMUM (off_t) >> 31 >> 31 == 0)
|
|
result |= 1;
|
|
|
|
/* Check the size of the 'struct stat' field 'st_size'.
|
|
With MSVC, this test succeeds only thanks to the 'sys_stat' module. */
|
|
{
|
|
struct stat st;
|
|
if (sizeof st.st_size != sizeof (off_t))
|
|
result |= 2;
|
|
}
|
|
|
|
return result;
|
|
}
|