If you're willing to consider an alternative standard library, you can try Core (https://github.com/janestreet/core). It includes hash set (https://ocaml.janestreet.com/ocaml-core/111.03.00/doc/core/#Hash_set) and many more goodies.

On Tue, Apr 8, 2014 at 11:42 AM, Johan Mazel <johan.mazel@gmail.com> wrote:

Hi
I want to use hashset in OCaml.
I found these two implemtetations:
*https://www.lri.fr/~filliatr/ftp/ocaml/ds/hashset.ml.html

*http://caml.inria.fr/cgi-bin/hump.en.cgi?contrib=504
Is there anything else available somewhere ?
Regards

Johan