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 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 >