From: Matthieu Wipliez <mwipliez@yahoo.fr>
To: caml-list@yquem.inria.fr
Subject: Re : [Caml-list] Hashtbl.find_all Stack overflow
Date: Mon, 11 Dec 2006 23:06:49 +0000 (GMT) [thread overview]
Message-ID: <20061211230649.87955.qmail@web27012.mail.ukl.yahoo.com> (raw)
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Hello,
have you tried using the functorial version with a suitable compare function (ie not Pervasives.compare) ?
I don't know about the type of the keys, so it is just a guess...
Hope that helps,
Matthieu
----- Message d'origine ----
De : "jhsu1@email.sjsu.edu" <jhsu1@email.sjsu.edu>
À : caml-list@yquem.inria.fr
Envoyé le : Lundi, 11 Décembre 2006, 19h18mn 15s
Objet : [Caml-list] Hashtbl.find_all Stack overflow
I get a stack overflow with the following
<PRE>
let var_lookup = Hashtbl.create 997;;
(* ... *)
let keys h = Hashtbl.fold (fun key data accu -> if not (List.mem key accu) then
key :: accu else accu) h [] in
let files = keys var_lookup in
let helper file = (let vars = Hashtbl.find_all var_lookup file in
let run_tpl var = print_string var in
List.iter run_tpl vars) in
List.iter helper files;
</PRE>
Only when Hashtbl.find_all is executed enough times.
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