# Module Ephemeron.GenHashTable

    module GenHashTable: sig .. end

Hash tables on generic containers with notion of death and aliveness.

Define a hash table on generic containers which have a notion of "death" and aliveness. If a binding is dead the hash table can automatically remove it.

    type equal =

`|` | `ETrue`
`|` | `EFalse`
`|` | `EDead` | `(*` | the container is dead | `*)`

    module MakeSeeded: functor (H : sig

    type t

keys

    type 'a container

contains keys and the associated data

    val hash : int -> t -> int

same as `Hashtbl.SeededHashedType`

    val equal : 'a container ->
           t -> Ephemeron.GenHashTable.equal

equality predicate used to compare a key with the one in a container. Can return `EDead` if the keys in the container are dead

    val create : t ->
           'a -> 'a container

`create key data` creates a container from some initials keys and one data

    val get_key : 'a container ->
           t option

`get_key cont` returns the keys if they are all alive

    val get_data : 'a container -> 'a option

`get_data cont` returns the data if it is alive

    val set_key_data : 'a container ->
           t -> 'a -> unit

`set_key_data cont` modifies the key and data

    val check_key : 'a container -> bool

`check_key cont` checks if all the keys contained in the data are alive

    end) -> Ephemeron.SeededS  with type key = H.t

Functor building an implementation of an hash table that use the container for keeping the information given