Module Hashset

Adapted from Damien Doligez, projet Para, INRIA Rocquencourt, OCaml stdlib.

module type EqType = sig ... end
type statistics = {
num_bindings : int;
num_buckets : int;
max_bucket_length : int;
bucket_histogram : int array;
}
module type S = sig ... end
module Make : functor (E : EqType) -> S with type elt = E.t
module Combine : sig ... end