From: Francois Thomasset <Francois.Thomasset@inria.fr>
To: caml-list@inria.fr
Subject: [Caml-list] le neophyte et les modules, types parametres
Date: Wed, 25 Apr 2001 17:49:00 +0200 [thread overview]
Message-ID: <200104251549.f3PFn0116328@ionie.inria.fr> (raw)
Désolé de poser des qustions simplistes mais je suis perdu dans les modules.
Dans l'idée de construire une table de symboles je définis ceci :
# type symbol = string * int ;;
# type comparison = Equiv | Smaller | Greater;;
# module type ORDERED =
sig
type 'a t
val order : 'a t -> 'a t -> comparison
end;;
module type ORDERED =
sig type 'a t val order : 'a t -> 'a t -> comparison end
# module type AVL_FUNCTOR = functor ( Key : ORDERED ) ->
sig
type 'a key = 'a Key.t
type avl_btree = ('a key * int) btree
...
end;;
The type constructor Key.t expects 1 argument(s),
but is here applied to 0 argument(s)
D'accord je suppose que c'est le type 'a qui manque (un jour ce sera les
morceaux d'environnement attachés aux symboles, donc je n'ai pas envie de
préciser tout de suite) ; mais je ne comprends pas comment le dire autrement
que ci-dessus ; quelque chose a du m'échapper...
Question: how to use a parameter type in a module, cf example above
François Thomasset.
INRIA (A3)
Tel: +33 (1) 39-63-54-75
Fax: +33 (1) 39-63-53-30 ou +33 (1) 39-63-59-95
Email: Francois.Thomasset@inria.fr
Smail: INRIA, Rocquencourt, BP 105, 78153 Le Chesnay Cedex, France
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next reply other threads:[~2001-04-25 15:49 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-04-25 15:49 Francois Thomasset [this message]
2001-04-25 16:16 ` Brian Rogoff
2001-04-25 16:20 ` Alain Frisch
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