package core

  1. Overview
  2. Docs
package core
Legend:
Library
Module
Module type
Parameter
Class
Class type

Make builds a set from an element type that has a compare function but doesn't have a comparator. This generates a new comparator.

Make_binable is similar, except the element and set types support bin_io.

Parameters

module Elt : Elt_plain

Signature

module Elt : sig ... end
include Ppx_compare_lib.Comparable.S with type t := t
val compare : t -> t -> int
include Ppx_compare_lib.Equal.S with type t := t
val equal : t -> t -> bool
val sexp_of_t : t -> Sexplib0.Sexp.t
module Diff : sig ... end
include Diffable.S_plain with type t := t and module Diff := Diff
include Set_intf.Creators_generic with type ('a, 'b) set := ('a, 'b) Base.Set.t with type ('a, 'b) t := t with type ('a, 'b) tree := (Elt.t, Elt.comparator_witness) Base.Set.Using_comparator.Tree.t with type 'a elt := Elt.t with type 'c cmp := Elt.comparator_witness with type ('a, 'b, 'c) create_options := ('a, 'b, 'c) Base.Set.Without_comparator.t
include Base.Set.Creators_generic with type ('a, 'b) set := ('a, 'b) Base.Set.t with type ('a, 'b) t := t with type ('a, 'b) tree := (Elt.t, Elt.comparator_witness) Base.Set.Using_comparator.Tree.t with type 'a elt := Elt.t with type 'c cmp := Elt.comparator_witness with type ('a, 'b, 'c) create_options := ('a, 'b, 'c) Base.Set.Without_comparator.t
val empty : ('a, 'cmp, t) Base.Set.Without_comparator.t
val singleton : ('a, 'cmp, Elt.t -> t) Base.Set.Without_comparator.t
val union_list : ('a, 'cmp, t list -> t) Base.Set.Without_comparator.t
val of_list : ('a, 'cmp, Elt.t list -> t) Base.Set.Without_comparator.t
val of_sequence : ('a, 'cmp, Elt.t Base.Sequence.t -> t) Base.Set.Without_comparator.t
val of_array : ('a, 'cmp, Elt.t array -> t) Base.Set.Without_comparator.t
val of_sorted_array : ('a, 'cmp, Elt.t array -> t Base.Or_error.t) Base.Set.Without_comparator.t
val of_sorted_array_unchecked : ('a, 'cmp, Elt.t array -> t) Base.Set.Without_comparator.t
val of_increasing_iterator_unchecked : ('a, 'cmp, len:int -> f:(int -> Elt.t) -> t) Base.Set.Without_comparator.t
val stable_dedup_list : ('a, _, Elt.t list -> Elt.t list) Base.Set.Without_comparator.t
  • deprecated [since 2023-04] Use [List.stable_dedup] instead.
val map : ('b, 'cmp, ('a, _) Base.Set.t -> f:('a -> Elt.t) -> t) Base.Set.Without_comparator.t

The types of map and filter_map are subtle. The input set, ('a, _) set, reflects the fact that these functions take a set of *any* type, with any comparator, while the output set, ('b, 'cmp) t, reflects that the output set has the particular 'cmp of the creation function. The comparator can come in one of three ways, depending on which set module is used

  • Set.map -- comparator comes as an argument
  • Set.Poly.map -- comparator is polymorphic comparison
  • Foo.Set.map -- comparator is Foo.comparator
val filter_map : ('b, 'cmp, ('a, _) Base.Set.t -> f:('a -> Elt.t option) -> t) Base.Set.Without_comparator.t
val of_hash_set : ('a, 'cmp, Elt.t Hash_set.t -> t) Base.Set.Without_comparator.t
val of_hashtbl_keys : ('a, 'cmp, (Elt.t, _) Hashtbl.t -> t) Base.Set.Without_comparator.t
val of_map_keys : (Elt.t, _, Elt.comparator_witness) Base.Map.t -> t

Never requires a comparator because it can get one from the input Map.t.

module Provide_of_sexp (Elt : sig ... end) : sig ... end
module Provide_bin_io (Elt : sig ... end) : Set_intf.Binable.S with type t := t
module Provide_hash (Elt : Base.Hasher.S with type t := Elt.t) : sig ... end
val quickcheck_observer : Elt.t Quickcheck.Observer.t -> t Quickcheck.Observer.t
val quickcheck_shrinker : Elt.t Quickcheck.Shrinker.t -> t Quickcheck.Shrinker.t
OCaml

Innovation. Community. Security.

GitHub Discord Twitter Peertube RSS
About
Changelog Releases Industrial Users Academic Users Why OCaml
Ecosystem
Packages Community Events OCaml Planet Jobs
Resources
Install OCaml Get Started Platform Tools Language Manual Standard Library API Books Exercises Papers OCaml Playground Logo
Policies
Carbon Footprint Governance Privacy Code of Conduct