1 type 'a t = private int
4 val is_nil : 'a t -> bool
5 val print : Format.formatter -> 'a t -> unit
6 val compare : 'a t -> 'a t -> int
7 val equal : 'a t -> 'a t -> bool
10 external to_int : 'a t -> int = "%identity"
11 external of_int : int -> 'a t = "%identity"