package base

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package base
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include Container.S1
type 'a t
val length : 'a t -> int
val is_empty : 'a 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
type 'a tree
type comparator_witness
val invariants : _ t -> bool
val mem : 'a t -> 'a -> bool
val add : 'a t -> 'a -> 'a t
val remove : 'a t -> 'a -> 'a t
val union : 'a t -> 'a t -> 'a t
val inter : 'a t -> 'a t -> 'a t
val diff : 'a t -> 'a t -> 'a t
val symmetric_diff : 'a t -> 'a t -> ('a, 'a) Either.t Sequence.t
val compare_direct : 'a t -> 'a t -> int
val equal : 'a t -> 'a t -> bool
val is_subset : 'a t -> of_:'a t -> bool
val subset : 'a t -> 'a t -> bool
  • deprecated [since 2016-09] Replace [Set.subset t1 t2] with [Set.is_subset t1 ~of_:t2]
val fold_until : 'a t -> init:'b -> f:('b -> 'a -> ('b, 'stop) Continue_or_stop.t) -> ('b, 'stop) Finished_or_stopped_early.t
val fold_right : 'a t -> init:'b -> f:('a -> 'b -> 'b) -> 'b
val iter2 : 'a t -> 'a t -> f:([ `Left of 'a | `Right of 'a | `Both of 'a * 'a ] -> unit) -> unit
val filter : 'a t -> f:('a -> bool) -> 'a t
val partition_tf : 'a t -> f:('a -> bool) -> 'a t * 'a 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 : 'a t -> 'a -> 'a t * 'a option * 'a t
val group_by : 'a t -> equiv:('a -> 'a -> bool) -> 'a 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 : 'a t -> int -> 'a t
val to_tree : 'a t -> 'a tree
val to_sequence : ?order:[ `Increasing | `Decreasing ] -> ?greater_or_equal_to:'a -> ?less_or_equal_to:'a -> 'a t -> 'a Sequence.t
val merge_to_sequence : ?order:[ `Increasing | `Decreasing ] -> ?greater_or_equal_to:'a -> ?less_or_equal_to:'a -> 'a t -> 'a t -> ('a, 'a) Merge_to_sequence_element.t Sequence.t
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