English version
Accueil     À propos     Téléchargement     Ressources     Contactez-nous    

Ce site est rarement mis à jour. Pour les informations les plus récentes, rendez-vous sur le nouveau site OCaml à l'adresse ocaml.org.

Browse thread
[Caml-list] Map efficiency?
[ Home ] [ Index: by date | by threads ]
[ Search: ]

[ Message by date: previous | next ] [ Message in thread: previous | next ] [ Thread: previous | next ]
Date: 2003-11-04 (18:14)
From: Alex Baretta <alex@b...>
Subject: Re: [Caml-list] Map efficiency?
> Map depends on keys to be ordered. This in turn requires to allow for a
> user-defined order: assume sets as keys that are implemented by
> unordered lists. Different lists can represent the same set. Hence, it
> must be possible to provide a user-defined order that would treat those
> lists as equal. The functor argument of Map contains the compare() which
> does just that.

The order function could just as easily be passed as a parameter to all
functions working on the map. There is no reason not to have a
polymorphic version of the Map module in the standard library. Am I
wrong in believing that someone out there wrote such a module already?


To unsubscribe, mail caml-list-request@inria.fr Archives: http://caml.inria.fr
Bug reports: http://caml.inria.fr/bin/caml-bugs FAQ: http://caml.inria.fr/FAQ/
Beginner's list: http://groups.yahoo.com/group/ocaml_beginners