Function pool_destroy

examples/stdlib.c:1783–1791

* Destroy a malloc() pool. */

 * Destroy a malloc() pool.
 */
static int pool_destroy(struct malloc_pool_s *pool)
{
    if (pool == &malloc_pool)
    {
        errno = EINVAL;
        return -1;
    }
    return munmap(pool, (size_t)pool->end * MA_UNIT);
}

/*
 * Pool init.