`Tag`

Tags on runtime boxed values.

`include Identifiable.S`

`module T : Identifiable.Thing with type t = t`

`include Identifiable.Thing with type t := T.t`

`include Hashtbl.HashedType with type t := T.t`

`val hash : T.t -> int`

A hashing function on keys. It must be such that if two keys are equal according to `equal`

, then they have identical hash values as computed by `hash`

. Examples: suitable (`equal`

, `hash`

) pairs for arbitrary key types include

- (
`(=)`

,`hash`

) for comparing objects by structure (provided objects do not contain floats) - (
`(fun x y -> compare x y = 0)`

,`hash`

) for comparing objects by structure and handling`Stdlib.nan`

correctly - (
`(==)`

,`hash`

) for comparing objects by physical equality (e.g. for mutable or cyclic objects).

`include Map.OrderedType with type t := T.t`

`val output : out_channel -> T.t -> unit`

`val print : Format.formatter -> T.t -> unit`

`module Set : Identifiable.Set with module T := T`

`module Map : Identifiable.Map with module T := T`

`module Tbl : Identifiable.Tbl with module T := T`

`val create_exn : int -> t`

`val to_int : t -> int`

`val zero : t`

`val object_tag : t`