hashcons 1.4.0 (latest) · OCaml Package

type (+'a, !+'b) t

type 'a key = 'a hash_consed

val empty : ('a, 'b) t

val is_empty : ('a, 'b) t -> bool

val singleton : 'a key -> 'b -> ('a, 'b) t

val add : 'a key -> 'b -> ('a, 'b) t -> ('a, 'b) t

val find : 'a key -> ('a, 'b) t -> 'b

val find_opt : 'a key -> ('a, 'b) t -> 'b option

val update : 'a key -> ('b option -> 'b option) -> ('a, 'b) t -> ('a, 'b) t

val cardinal : ('a, 'b) t -> int

val remove : 'a key -> ('a, 'b) t -> ('a, 'b) t

val mem : 'a key -> ('a, 'b) t -> bool

val add_seq : ('a key * 'b) Seq.t -> ('a, 'b) t -> ('a, 'b) t

val of_seq : ('a key * 'b) Seq.t -> ('a, 'b) t

val partition : ('a key -> 'b -> bool) -> ('a, 'b) t -> ('a, 'b) t * ('a, 'b) t

val choose : ('a, 'b) t -> 'a key * 'b

val choose_opt : ('a, 'b) t -> ('a key * 'b) option

val split : 'a key -> ('a, 'b) t -> ('a, 'b) t * 'b option * ('a, 'b) t

val equal : ('b -> 'b -> bool) -> ('a, 'b) t -> ('a, 'b) t -> bool

val compare : ('b -> 'b -> int) -> ('a, 'b) t -> ('a, 'b) t -> int

val merge : 
  ('a key -> 'b option -> 'c option -> 'd option) ->
  ('a, 'b) t ->
  ('a, 'c) t ->
  ('a, 'd) t

val union : 
  ('a key -> 'b -> 'b -> 'b option) ->
  ('a, 'b) t ->
  ('a, 'b) t ->
  ('a, 'b) t

val iter : ('a key -> 'b -> unit) -> ('a, 'b) t -> unit

val map : ('b -> 'c) -> ('a, 'b) t -> ('a, 'c) t

val mapi : ('a key -> 'b -> 'c) -> ('a, 'b) t -> ('a, 'c) t

val fold : ('a key -> 'b -> 'c -> 'c) -> ('a, 'b) t -> 'c -> 'c

val exists : ('a key -> 'b -> bool) -> ('a, 'b) t -> bool

val for_all : ('a key -> 'b -> bool) -> ('a, 'b) t -> bool

val filter : ('a key -> 'b -> bool) -> ('a, 'b) t -> ('a, 'b) t

val filter_map : ('a key -> 'b -> 'c option) -> ('a, 'b) t -> ('a, 'c) t

val bindings : ('a, 'b) t -> ('a key * 'b) list

val to_seq : ('a, 'b) t -> ('a key * 'b) Seq.t

val min_binding_opt : ('a, 'b) t -> ('a key * 'b) option

val max_binding_opt : ('a, 'b) t -> ('a key * 'b) option

val min_binding : ('a, 'b) t -> 'a key * 'b

val max_binding : ('a, 'b) t -> 'a key * 'b

val find_first_opt : ('a key -> bool) -> ('a, 'b) t -> ('a key * 'b) option

val find_last_opt : ('a key -> bool) -> ('a, 'b) t -> ('a key * 'b) option

val find_first : ('a key -> bool) -> ('a, 'b) t -> 'a key * 'b

val find_last : ('a key -> bool) -> ('a, 'b) t -> 'a key * 'b

val find_any : ('a key -> 'b -> bool) -> ('a, 'b) t -> 'a key * 'b

val find_any_opt : ('a key -> 'b -> bool) -> ('a, 'b) t -> ('a key * 'b) option

val is_singleton : ('a, 'b) t -> ('a key * 'b) option

if the map is a singleton, return the unique binding, else return None

package hashcons