is it possible with boost::intrusive::slist to obtain the end() iterator from a value object present in a list?

Using s_iterator_to() I can obtain a valid iterator from a value reference but i can't forward iterate from it without knowing the end().

Reading the slist code I found the method slist_iterator::get_container but since is a detail implementation, I prefer not to use it.

I also found that a default construct iterator is almost equivalent to end() for linear slists and should work just fine. For circular slists?