module Ref: functor (T : S) -> S with type t = T.t ref
functor (
T
:
S
) ->
with type t = T.t ref
include Datatype.S_no_copy
val copy : Datatype.t -> Datatype.t
Datatype.t -> Datatype.t
Deep copy: no possible sharing between x and copy x.
x
copy x