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/* Ensure that malloc_usable_size returns the request size with
MALLOC_CHECK_ exported to a positive value.
Copyright (C) 2012-2021 Free Software Foundation, Inc.
Copyright The GNU Toolchain Authors.
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 <malloc.h>
#include <string.h>
#include <stdio.h>
#include <support/support.h>
#include <support/check.h>
static int
do_test (void)
{
size_t usable_size;
void *p = malloc (7);
TEST_VERIFY_EXIT (p != NULL);
usable_size = malloc_usable_size (p);
TEST_COMPARE (usable_size, 7);
memset (p, 0, usable_size);
free (p);
TEST_COMPARE (malloc_usable_size (NULL), 0);
return 0;
}
#include "support/test-driver.c"
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