Remi VANICAT wrote:

> It is what my hweak library is doing. the only difference is that I
> use my own Hashtbl with weak pointer (so object that are in my memo
> object can be collected by the GC).
>

Yes it's better.
Is there any reason why this is not in the standard library ?
It seems that there is only one functorial interface to weak hash tables,
and they are intended to be used like a set,  while yours is intended to
be used when we want to be "weak" for the key _and_ for the data.
I think it would be useful to have both.
My 2 cents,
nadji

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