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(*
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*)
open! NS0
module type S = sig
type elt
type t [@@deriving compare, equal, sexp_of]
module Provide_hash (_ : sig
type t = elt [@@deriving hash]
end) : sig
type t [@@deriving hash]
end
with type t := t
module Provide_of_sexp (_ : sig
type t = elt [@@deriving of_sexp]
end) : sig
type t [@@deriving of_sexp]
end
with type t := t
(** {1 Pretty-print} *)
val pp_full :
?pre:(unit, unit) fmt
-> ?suf:(unit, unit) fmt
-> ?sep:(unit, unit) fmt
-> elt pp
-> t pp
module Provide_pp (_ : sig
type t = elt
val pp : t pp
end) : sig
type t
val pp : t pp
val pp_diff : (t * t) pp
end
with type t := t
(** {1 Construct} *)
val empty : t
val of_ : elt -> t
val of_option : elt option -> t
val of_list : elt list -> t
val add : elt -> t -> t
val add_option : elt option -> t -> t
val add_list : elt list -> t -> t
val remove : elt -> t -> t
val diff : t -> t -> t
val inter : t -> t -> t
val union : t -> t -> t
val diff_inter : t -> t -> t * t
val union_list : t list -> t
(** {1 Query} *)
val is_empty : t -> bool
val cardinal : t -> int
val mem : elt -> t -> bool
val subset : t -> of_:t -> bool
val disjoint : t -> t -> bool
val max_elt : t -> elt option
val only_elt : t -> elt option
val classify : t -> [`Zero | `One of elt | `Many]
val pop : t -> (elt * t) option
(** Find and remove an unspecified element. [O(1)]. *)
val pop_exn : t -> elt * t
(** Find and remove an unspecified element. [O(1)]. *)
(** {1 Transform} *)
val map : t -> f:(elt -> elt) -> t
val filter : t -> f:(elt -> bool) -> t
val partition : t -> f:(elt -> bool) -> t * t
(** {1 Traverse} *)
val iter : t -> f:(elt -> unit) -> unit
val exists : t -> f:(elt -> bool) -> bool
val for_all : t -> f:(elt -> bool) -> bool
val fold : t -> 's -> f:(elt -> 's -> 's) -> 's
val reduce : t -> f:(elt -> elt -> elt) -> elt option
(** {1 Convert} *)
val to_iter : t -> elt iter
val of_iter : elt iter -> t
end