Re: [Caml-list] Specialized dictionaries

[Florian Hars <florian@hars.de>]

On Mon, Nov 05, 2001 at 11:32:51AM +0100, Jean-Christophe Filliatre wrote:
> Marcin 'Qrczak' Kowalczyk writes:
>  > I need dictionaries indexed by ints which must be very fast.
> 
> To be  even more efficient, I'm  afraid you have to  follow your idea,
> that is to inline this hash function in your own copy of hashtbl.ml.

Wouldn't the Patricia Trees (from the 
"the-name-of-the-author-currently-escapes-me"-department :-)) mentioned on 
http://www.lri.fr/~filliatr/software.en.html be useful in this case (unless 
the problem needs the in-place update available with Hashtbl)? 
The documentation claims that "The
    performances are always better than the standard library's module
    [Set], except for linear insertion (building a set by insertion of
    consecutive integers)."
Or is Hashtbl faster still?

Yours, Florian Hars.


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