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- /* Check IOV_MAX definition for consistency (bug 22321).
- Copyright (C) 2017-2019 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
- <http://www.gnu.org/licenses/>. */
- /* Defined in tst-sysconf-iov_max-uapi.c. */
- long uio_maxiov_value (void);
- #include <limits.h>
- #include <support/check.h>
- #include <sys/uio.h>
- #include <unistd.h>
- static int
- do_test (void)
- {
- TEST_VERIFY (_XOPEN_IOV_MAX == 16); /* Value required by POSIX. */
- TEST_VERIFY (uio_maxiov_value () >= _XOPEN_IOV_MAX);
- TEST_VERIFY (IOV_MAX == uio_maxiov_value ());
- TEST_VERIFY (UIO_MAXIOV == uio_maxiov_value ());
- TEST_VERIFY (sysconf (_SC_UIO_MAXIOV) == uio_maxiov_value ());
- TEST_VERIFY (sysconf (_SC_IOV_MAX) == uio_maxiov_value ());
- return 0;
- }
- #include <support/test-driver.c>
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