Module Queue

module Queue = struct ... end

Types
`'b t`	The type of queues containing elements of type `'a`. Abstract

Exceptions
`Empty`	Raised when `take` is applied to an empty queue.

Functions


create

: unit -> 'c t

Return a new queue, initially empty.

add

: 'd -> 'd t -> unit

add x q adds the element x at the end of the queue q.


take

: 'e t -> 'e

take q removes and returns the first element in queue q, or raises Empty if the queue is empty.


peek

: 'f t -> 'f

peek q returns the first element in queue q, without removing it from the queue, or raises Empty if the queue is empty.


clear

: 'g t -> unit

Discard all elements from a queue.


length

: 'h t -> int

Return the number of elements in a queue.


iter

: f:('i -> unit) -> 'i 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.