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Module Make (Elt : Elt) : S with type Elt.t = Elt.t

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

Elt : Elt

Signature

type ('a, 'cmp) set
type ('a, 'cmp) tree
module Elt : sig .. end
module Tree : sig .. end
val t_of_sexp : Sexplib.Sexp.t -> t
val sexp_of_t : t -> Sexplib.Sexp.t
val compare : t -> t -> int
include Core_set_intf.Creators_and_accessors0 with type ('a, 'b) set := ('a, 'b) set with type t := t with type tree := Tree.t with type elt := Elt.t with type comparator_witness := Elt.comparator_witness
include Core_set_intf.Accessors0
include Container.S0
type t
type elt
val mem : ?equal:(elt -> elt -> bool) -> t -> elt -> bool

Checks whether the provided element is there using the default equality test, using the provided equal function if it is not

val length : t -> int
val is_empty : t -> bool
val iter : t -> f:(elt -> unit) -> unit

iter must allow exceptions raised in f to escape, terminating the iteration cleanly. The same holds for all functions below taking an f.

val fold : t -> init:'accum -> f:('accum -> elt -> 'accum) -> 'accum

fold t ~init ~f returns f (... f (f (f init e1) e2) e3 ...) en, where e1..en are the elements of t

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

Returns true if and only if there exists an element for which the provided function evaluates to true. This is a short-circuiting operation.

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

Returns true if and only if the provided function evaluates to true for all elements. This is a short-circuiting operation.

val count : t -> f:(elt -> bool) -> int

Returns the number of elements for which the provided function evaluates to true.

val sum : (module Commutative_group.S with type t = 'sum) -> t -> f:(elt -> 'sum) -> 'sum

Returns the sum of f i for i in the container

val find : t -> f:(elt -> bool) -> elt option

Returns as an option the first element for which f evaluates to true.

val find_map : t -> f:(elt -> 'a option) -> 'a option

Returns the first evaluation of f that returns Some, and returns None if there is no such element.

val to_list : t -> elt list
val to_array : t -> elt array
val min_elt : t -> cmp:(elt -> elt -> int) -> elt option

Returns a min (resp max) element from the collection using the provided cmp function. In case of a tie, the first element encountered while traversing the collection is returned. The implementation uses fold so it has the same complexity as fold. Returns None iff the collection is empty.

val max_elt : t -> cmp:(elt -> elt -> int) -> elt option
type tree
type comparator_witness
val invariants : t -> bool
val mem : t -> elt -> bool
val add : t -> elt -> t
val remove : t -> elt -> t
val union : t -> t -> t
val inter : t -> t -> t
val diff : t -> t -> t
val symmetric_diff : t -> t -> (elt, elt) Either.t Sequence.t
val compare_direct : t -> t -> int
val equal : t -> t -> bool
val subset : t -> t -> bool
val fold_until : t -> init:'b -> f:('b -> elt -> [
| `Continue of 'b
| `Stop of 'b
]) -> 'b
val fold_right : t -> init:'b -> f:(elt -> 'b -> 'b) -> 'b
val iter2 : t -> t -> f:([
| `Left of elt
| `Right of elt
| `Both of elt * elt
] -> unit) -> unit
val filter : t -> f:(elt -> bool) -> t
val partition_tf : t -> f:(elt -> bool) -> t * t
val elements : t -> elt list
val min_elt : t -> elt option
val min_elt_exn : t -> elt
val max_elt : t -> elt option
val max_elt_exn : t -> elt
val choose : t -> elt option
val choose_exn : t -> elt
val split : t -> elt -> t * elt option * t
val group_by : t -> equiv:(elt -> elt -> bool) -> t list
val find_exn : t -> f:(elt -> bool) -> elt
val find_index : t -> int -> elt option
val remove_index : t -> int -> t
val to_tree : t -> tree
val to_sequence : ?order:[
| `Increasing
| `Decreasing
] -> ?greater_or_equal_to:elt -> ?less_or_equal_to:elt -> t -> elt Sequence.t
val merge_to_sequence : ?order:[
| `Increasing
| `Decreasing
] -> ?greater_or_equal_to:elt -> ?less_or_equal_to:elt -> t -> t -> elt Core_set_intf.Merge_to_sequence_element.t Sequence.t
val to_map : t -> f:(elt -> 'data) -> (elt, 'data, comparator_witness) Core_set_intf.Map.t
val shrinker : elt Quickcheck.shr -> t Quickcheck.shr
include Core_set_intf.Creators0 with type t := t with type tree := tree with type elt := elt with type comparator_witness := comparator_witness
type ('a, 'cmp) set
type t
type tree
type elt
type comparator_witness
val empty : t
val singleton : elt -> t
val union_list : t list -> t
val of_list : elt list -> t
val of_array : elt array -> t
val of_sorted_array : elt array -> t Or_error.t
val of_sorted_array_unchecked : elt array -> t
val stable_dedup_list : elt list -> elt list
val map : ('a, _) set -> f:('a -> elt) -> t
val filter_map : ('a, _) set -> f:('a -> elt option) -> t
val of_tree : tree -> t
val of_map_keys : (elt, _, comparator_witness) Core_set_intf.Map.t -> t