Module type Hashset.S

module type S = sig .. end

type elt 

type t 

val create : int -> t

val clear : t -> unit

val copy : t -> t

val add : t -> elt -> unit

val remove : t -> elt -> unit

val mem : t -> elt -> bool

val cardinal : t -> int

val iter : (elt -> unit) -> t -> unit

val fold : (elt -> 'a -> 'a) -> t -> 'a -> 'a

val exists : (elt -> bool) -> t -> bool

val for_all : (elt -> bool) -> t -> bool

val left_union : t -> t -> t

val is_empty : t -> bool

val filter : (elt -> bool) -> t -> unit

val to_string : t -> string

val of_list : elt list -> t

val to_list : t -> elt list

val map_to : ('b -> 'a -> 'a) -> 'a -> (elt -> 'b) -> t -> 'a