module List : Core_list
module Array : Core_array
module Hashtbl : Core_hashtbl
module type Key = Hashtbl.Key
module type S = sig .. end
module Key : Key
type 'a t
a hash-queue, where the values are of type 'a
include Container.S1 with type t := 'a t
val invariant : 'a t -> unit
invariant t checks the invariants of the queue.
val create : unit -> 'a t
create () returns an empty queue.
val clear : 'a t -> unit
clear the queue
val mem : 'a t -> Key.t -> bool
mem q k returns true iff there is some (k, v) in the queue.
val lookup : 'a t -> Key.t -> 'a option
lookup t k returns the value of the key-value pair in the queue with key k, if there is one.
val lookup_exn : 'a t -> Key.t -> 'a
val enqueue : 'a t -> Key.t -> 'a -> [ `Key_already_present | `Ok ]
enqueue t k v adds the key-value pair (k, v) to the end of the queue, returning `Ok if the pair was added, or `Key_already_present if there is already a (k, v') in the queue.
val enqueue_exn : 'a t -> Key.t -> 'a -> unit
val first : 'a t -> 'a option
first t returns the front element of the queue, without removing it.
val keys : 'a t -> Key.t list
keys t returns the keys in the order of the queue.
val dequeue : 'a t -> 'a option
dequeue t returns the front element of the queue.
val dequeue_exn : 'a t -> 'a
val dequeue_with_key : 'a t -> (Key.t * 'a) option
dequeue_with_key t returns the front element of the queue and its key
val dequeue_with_key_exn : 'a t -> Key.t * 'a
val dequeue_all : 'a t -> f:('a -> unit) -> unit
dequeue_all t ~f dequeues every element of the queue and applies f to each one.
remove q k removes the key-value pair with key k from the queue.
val remove : 'a t -> Key.t -> [ `No_such_key | `Ok ]
val remove_exn : 'a t -> Key.t -> unit
val replace : 'a t -> Key.t -> 'a -> [ `No_such_key | `Ok ]
replace q k v changes the value of key k in the queue to v.
val replace_exn : 'a t -> Key.t -> 'a -> unit
val iteri : 'a t -> f:(key:Key.t -> data:'a -> unit) -> unit
iter t ~f applies f to each key and element of the queue.
val foldi : 'a t -> init:'b -> f:('b -> key:Key.t -> data:'a -> 'b) -> 'b
module Make : 
functor (Key : Key) -> S with module Key = Key