module type Set_ref =sig
..end
Output signature of builders of references on a set.
include State_builder.Ref
type
elt
val add : elt -> unit
val remove : elt -> unit
val is_empty : unit -> bool
val mem : elt -> bool
val fold : (elt -> 'a -> 'a) -> 'a -> 'a
val iter : (elt -> unit) -> unit