package base

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package base
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type ('a, 'cmp) t

A Tree.t contains just the tree data structure that a set is based on, without including the comparator. Accordingly, any operation on a Tree.t must also take as an argument the corresponding comparator.

include sig ... end
val sexp_of_t : ('a -> Sexp.t) -> ('cmp -> Sexp.t) -> ('a, 'cmp) t -> Sexp.t
val t_of_sexp_direct : comparator:('elt, 'cmp) Comparator.t -> (Sexp.t -> 'elt) -> Sexp.t -> ('elt, 'cmp) t
include Set_intf.Creators_and_accessors2_with_comparator with type ('a, 'b) set := ('a, 'b) t with type ('a, 'b) t := ('a, 'b) t with type ('a, 'b) tree := ('a, 'b) t
include Set_intf.Accessors2_with_comparator with type ('a, 'b) t := ('a, 'b) t with type ('a, 'b) tree := ('a, 'b) t
include Container.S1_phantom_invariant with type ('a, 'b) t := ('a, 'b) t
val length : (_, _) t -> int
val is_empty : (_, _) t -> bool
val iter : ('a, _) t -> f:('a -> unit) -> unit
val fold : ('a, _) t -> init:'accum -> f:('accum -> 'a -> '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 fold_result : ('a, _) t -> init:'accum -> f:('accum -> 'a -> ('accum, 'e) Result.t) -> ('accum, 'e) Result.t

fold_result t ~init ~f is a short-circuiting version of fold that runs in the Result monad. If f returns an Error _, that value is returned without any additional invocations of f.

val exists : ('a, _) t -> f:('a -> 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 : ('a, _) t -> f:('a -> 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 : ('a, _) t -> f:('a -> 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) -> ('a, _) t -> f:('a -> 'sum) -> 'sum

Returns the sum of f i for i in the container

val find : ('a, _) t -> f:('a -> bool) -> 'a option

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

val find_map : ('a, _) t -> f:('a -> 'b option) -> 'b option

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

val to_list : ('a, _) t -> 'a list
val to_array : ('a, _) t -> 'a array
val invariants : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> bool
val mem : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> 'a -> bool
val add : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> 'a -> ('a, 'cmp) t
val remove : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> 'a -> ('a, 'cmp) t
val union : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> ('a, 'cmp) t -> ('a, 'cmp) t
val inter : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> ('a, 'cmp) t -> ('a, 'cmp) t
val diff : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> ('a, 'cmp) t -> ('a, 'cmp) t
val symmetric_diff : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> ('a, 'cmp) t -> ('a, 'a) Either.t Sequence.t
val compare_direct : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> ('a, 'cmp) t -> int
val equal : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> ('a, 'cmp) t -> bool
val is_subset : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> of_:('a, 'cmp) t -> bool
val subset : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> ('a, 'cmp) t -> bool
  • deprecated [since 2016-09] Replace [Set.subset t1 t2] with [Set.is_subset t1 ~of_:t2]
val fold_until : ('a, _) t -> init:'accum -> f:('accum -> 'a -> ('accum, 'stop) Container_intf.Continue_or_stop.t) -> ('accum, 'stop) Container_intf.Finished_or_stopped_early.t
val fold_right : ('a, _) t -> init:'accum -> f:('a -> 'accum -> 'accum) -> 'accum
val iter2 : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> ('a, 'cmp) t -> f:([ `Left of 'a | `Right of 'a | `Both of 'a * 'a ] -> unit) -> unit
val filter : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> f:('a -> bool) -> ('a, 'cmp) t
val partition_tf : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> f:('a -> bool) -> ('a, 'cmp) t * ('a, 'cmp) t
val elements : ('a, _) t -> 'a list
val min_elt : ('a, _) t -> 'a option
val min_elt_exn : ('a, _) t -> 'a
val max_elt : ('a, _) t -> 'a option
val max_elt_exn : ('a, _) t -> 'a
val choose : ('a, _) t -> 'a option
val choose_exn : ('a, _) t -> 'a
val split : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> 'a -> ('a, 'cmp) t * 'a option * ('a, 'cmp) t
val group_by : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> equiv:('a -> 'a -> bool) -> ('a, 'cmp) t list
val find_exn : ('a, _) t -> f:('a -> bool) -> 'a
val find_index : ('a, _) t -> int -> 'a option
  • deprecated [since 2016-10] Use [nth]
val nth : ('a, _) t -> int -> 'a option
val remove_index : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> int -> ('a, 'cmp) t
val to_tree : ('a, 'cmp) t -> ('a, 'cmp) t
val to_sequence : comparator:('a, 'cmp) Comparator.t -> ?order:[ `Increasing | `Decreasing ] -> ?greater_or_equal_to:'a -> ?less_or_equal_to:'a -> ('a, 'cmp) t -> 'a Sequence.t
val merge_to_sequence : comparator:('a, 'cmp) Comparator.t -> ?order:[ `Increasing | `Decreasing ] -> ?greater_or_equal_to:'a -> ?less_or_equal_to:'a -> ('a, 'cmp) t -> ('a, 'cmp) t -> ('a, 'a) Sequence.Merge_with_duplicates_element.t Sequence.t
include Set_intf.Creators2_with_comparator with type ('a, 'b) t := ('a, 'b) t with type ('a, 'b) tree := ('a, 'b) t with type ('a, 'b) set := ('a, 'b) t
val empty : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t
val singleton : comparator:('a, 'cmp) Comparator.t -> 'a -> ('a, 'cmp) t
val union_list : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t list -> ('a, 'cmp) t
val of_list : comparator:('a, 'cmp) Comparator.t -> 'a list -> ('a, 'cmp) t
val of_array : comparator:('a, 'cmp) Comparator.t -> 'a array -> ('a, 'cmp) t
val of_sorted_array : comparator:('a, 'cmp) Comparator.t -> 'a array -> ('a, 'cmp) t Or_error.t
val of_sorted_array_unchecked : comparator:('a, 'cmp) Comparator.t -> 'a array -> ('a, 'cmp) t
val of_increasing_iterator_unchecked : comparator:('a, 'cmp) Comparator.t -> len:int -> f:(int -> 'a) -> ('a, 'cmp) t
val stable_dedup_list : comparator:('a, 'cmp) Comparator.t -> 'a list -> 'a list
val map : comparator:('b, 'cmp) Comparator.t -> ('a, _) t -> f:('a -> 'b) -> ('b, 'cmp) t
val filter_map : comparator:('b, 'cmp) Comparator.t -> ('a, _) t -> f:('a -> 'b option) -> ('b, 'cmp) t
val of_tree : comparator:('a, 'cmp) Comparator.t -> ('a, 'cmp) t -> ('a, 'cmp) t
val empty_without_value_restriction : (_, _) t
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