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/* Test of allocating memory with given alignment.
Copyright (C) 2020-2023 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>, 2020. */
#include <config.h>
#if HAVE_MEMALIGN
/* Specification. */
# include <malloc.h>
# include <stdint.h>
# include <stdlib.h>
# include <string.h>
# include "macros.h"
int
main (int argc, char *argv[])
{
static size_t sizes[] =
{ 13, 8, 17, 450, 320, 1, 99, 4, 15, 16, 2, 76, 37, 127, 2406, 641, 5781 };
void *aligned2_blocks[SIZEOF (sizes)];
void *aligned4_blocks[SIZEOF (sizes)];
void *aligned8_blocks[SIZEOF (sizes)];
void *aligned16_blocks[SIZEOF (sizes)];
void *aligned32_blocks[SIZEOF (sizes)];
void *aligned64_blocks[SIZEOF (sizes)];
size_t i;
for (i = 0; i < SIZEOF (sizes); i++)
{
size_t size = sizes[i];
aligned2_blocks[i] = memalign (2, size);
ASSERT (aligned2_blocks[i] != NULL);
ASSERT (((uintptr_t) aligned2_blocks[i] % 2) == 0);
memset (aligned2_blocks[i], 'u', size);
aligned4_blocks[i] = memalign (4, size);
ASSERT (aligned4_blocks[i] != NULL);
ASSERT (((uintptr_t) aligned4_blocks[i] % 4) == 0);
memset (aligned4_blocks[i], 'v', size);
aligned8_blocks[i] = memalign (8, size);
ASSERT (aligned8_blocks[i] != NULL);
ASSERT (((uintptr_t) aligned8_blocks[i] % 8) == 0);
memset (aligned8_blocks[i], 'w', size);
aligned16_blocks[i] = memalign (16, size);
ASSERT (aligned16_blocks[i] != NULL);
ASSERT (((uintptr_t) aligned16_blocks[i] % 16) == 0);
memset (aligned16_blocks[i], 'x', size);
aligned32_blocks[i] = memalign (32, size);
ASSERT (aligned32_blocks[i] != NULL);
ASSERT (((uintptr_t) aligned32_blocks[i] % 32) == 0);
memset (aligned32_blocks[i], 'y', size);
aligned64_blocks[i] = memalign (64, size);
ASSERT (aligned64_blocks[i] != NULL);
ASSERT (((uintptr_t) aligned64_blocks[i] % 64) == 0);
memset (aligned64_blocks[i], 'z', size);
}
for (i = 0; i < SIZEOF (sizes); i++)
{
free (aligned2_blocks[i]);
free (aligned4_blocks[i]);
free (aligned8_blocks[i]);
free (aligned16_blocks[i]);
free (aligned32_blocks[i]);
free (aligned64_blocks[i]);
}
return 0;
}
#else
# include <stdio.h>
int
main (int argc, char *argv[])
{
fputs ("Skipping test: function 'memalign' does not exist\n", stderr);
return 77;
}
#endif
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