The hweak library

This is the hweak library. It contain two module

The Hweak module, containing a weak hasthable where binding disepeard if the key or the value is collected.
The Weak_memo module, containing a class that may help to recover the true type of an object.

Two version :

The older one, with ocaml 3.04 suport (it may even work with older version of ocaml, Weak_memo was named Object_weak): hweak-1.0
The more recent one, need ocaml 3.06: hweak-1.1

The documentation can be remade (in the 1.1 version) by make doc. It's available here