Function pool_calloc

examples/stdlib.c:2429–2432

    return malloc_impl(pool, size, /*lock=*/true);
}
static void *pool_calloc(struct malloc_pool_s *pool, size_t nmemb, size_t size)
{
    return calloc_impl(pool, nmemb, size, /*lock=*/true);
}
static void *pool_realloc(struct malloc_pool_s *pool, void *ptr, size_t size)
{
    return realloc_impl(pool, ptr, size, /*lock=*/true);