package ke
Library
Module
Module type
Parameter
Class
Class type
include Sigs.R
Raised when peek_exn
, pop_exn
, N.keep_exn
or N.shift_exn
is applied to an empty queue.
val is_empty : ('a, 'b) t -> bool
Return true
if the given queue is empty, false
otherwise.
val create : ?capacity:int -> ('a, 'b) Bigarray_compat.kind -> ('a, 'b) t
Return a new queue, initially empty.
val capacity : ('a, 'b) t -> int
Returns how many objects t
can store.
val length : ('a, 'b) t -> int
Number of elements in the queue.
val push : ('a, 'b) t -> 'a -> unit
push q x
adds the elements x
at the end of the queue q
.
val pop : ('a, 'b) t -> 'a option
pop q
removes and returns the first element in queue q
. If q
is empty, it returns None
.
val pop_exn : ('a, 'b) t -> 'a
val peek : ('a, 'b) t -> 'a option
peek q
returns the first element in the queue q
, without removing it from the queue. If q
is empty, it returns None
.
val cons : ('a, 'b) t -> 'a -> unit
cons q x
adds element x
at the front of the given queue q
. It returns None
if it fails.
val clear : ('a, 'b) t -> unit
Discard all elements from a queue.
val compress : ('a, 'b) t -> unit
module N : sig ... end
val iter : ('a -> unit) -> ('a, 'b) t -> unit
iter f q
applies f
in turn to all elements of q
, from the least recently entered to the most recently entered. The queue itself is unchanged.
val rev_iter : ('a -> unit) -> ('a, 'b) t -> unit
iter f q
applies f
in turn to all elements of q
, from the most recently entered to the least recently entered. The queue itself is unchanged.
val fold : ('acc -> 'x -> 'acc) -> 'acc -> ('x, 'b) t -> 'acc
fold f a q
is equivalent to List.fold_left f a l
, where l
is the list of q
's elements. The queue remains unchanged.
module Weighted : Sigs.Weighted.R