Up

Module type S0_phantom = Container_intf.S0_phantom

Signature

type elt
type 'a t
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
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, or None if the collection is empty. In case of a tie, the first element encountered while traversing the collection is returned.

val max_elt : _ t -> cmp:(elt -> elt -> int) -> elt option