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83 lines
2.1 KiB
C
83 lines
2.1 KiB
C
/* Test for C17 alignment requirements.
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Copyright (C) 2023-2025 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library; if not, see
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<https://www.gnu.org/licenses/>. */
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#include <errno.h>
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#include <malloc.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <libc-diag.h>
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#include <support/check.h>
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#include "tst-malloc-aux.h"
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static int
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do_test (void)
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{
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void *p1;
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void *p2;
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void *p3;
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void *p4;
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void *p5;
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errno = 0;
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/* The implementation supports alignments that are non-negative powers of 2.
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We test 5 distinct conditions here:
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- A non-negative power of 2 alignment e.g. 64.
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- A degenerate zero power of 2 alignment e.g. 1.
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- A non-power-of-2 alignment e.g. 65.
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- A zero alignment.
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- A corner case SIZE_MAX / 2 + 1 alignment.
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*/
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p1 = aligned_alloc (64, 64);
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if (p1 == NULL)
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FAIL_EXIT1 ("aligned_alloc(64, 64) failed");
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p2 = aligned_alloc (1, 64);
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if (p2 == NULL)
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FAIL_EXIT1 ("aligned_alloc(1, 64) failed");
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p3 = aligned_alloc (65, 64);
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if (p3 != NULL)
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FAIL_EXIT1 ("aligned_alloc(65, 64) did not fail");
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p4 = aligned_alloc (0, 64);
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if (p4 != NULL)
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FAIL_EXIT1 ("aligned_alloc(0, 64) did not fail");
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/* This is an alignment like 0x80000000...UL */
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p5 = aligned_alloc (SIZE_MAX / 2 + 1, 64);
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if (p5 != NULL)
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FAIL_EXIT1 ("aligned_alloc(SIZE_MAX/2+1, 64) did not fail");
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free (p1);
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free (p2);
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return 0;
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}
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#define TEST_FUNCTION do_test ()
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#include "../test-skeleton.c"
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