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/* Test memalignment.
Copyright (C) 2025-2026 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 <stdlib.h>
#include <array_length.h>
#include <support/check.h>
static int
do_test (void)
{
void *null = NULL;
TEST_COMPARE (memalignment (NULL), 0);
TEST_COMPARE (memalignment (null), 0);
char ca[256];
array_foreach (p, ca)
TEST_VERIFY (memalignment (p) >= 1);
TEST_VERIFY (memalignment (&ca[0]) == 1 || memalignment (&ca[1]) == 1);
TEST_VERIFY (memalignment (&ca[0]) == 2 || memalignment (&ca[1]) == 2
|| memalignment (&ca[2]) == 2 || memalignment (&ca[3]) == 2);
long long int lla[256];
array_foreach (p, lla)
TEST_VERIFY (memalignment (p) >= _Alignof (long long int));
TEST_VERIFY (memalignment (&lla[0]) <= sizeof (long long int)
|| memalignment (&lla[1]) <= sizeof (long long int));
return 0;
}
#include <support/test-driver.c>
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