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/* Test of largefile module.
Copyright (C) 2023 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;
}
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