From: Remi VANICAT <vanicat@labri.u-bordeaux.fr>
To: caml-list@inria.fr
Subject: Re: [Caml-list] Débutant :)
Date: 22 Oct 2001 08:04:21 +0200 [thread overview]
Message-ID: <ya3hessnrbu.dlv@serveur1-1.labri.u-bordeaux.fr> (raw)
In-Reply-To: <ya3n12knsa5.dlv@serveur1-1.labri.u-bordeaux.fr>
Remi VANICAT <vanicat@labri.u-bordeaux.fr> writes:
> "AgEnT007" <agent007-fr@wanadoo.fr> writes:
>
> > Bonjour à tous,
> > je viens de me mettre cette aprés midi mëme au language CAML et je bute deja sur un exemple que j'ai trouvé :)
> >
> > voici ce que j'ai:
> >
> > let rec exemple_1 f a l =
> > if l = [] then a
> > else exemple_1 f ( f a (List.hd l)) (List.tl l) ;;
> >
> > j'ai compris l'utilité d'une telle declaration mais pas celle du
> > < a > qui se trouve à la 3eme ligne.
> > Quelqu'un pourrait t'il m'éclairer sur la troisieme ligne?
>
> si l = [1; 2; 3; 4; 5; 6; 7; 8; 9]
>
> alors exemple_1 f a l va calculer
>
> (f (f (f (f ... (f (f a 9) 8) ...4) 3) 2) 1)
mais qu'est ce que je raconte ? ce que ça calcule c'est
(f (f (f (f ... (f (f a 1) 2) ...6) 7) 8) 9)
en effet
exemple_1 f a [1; 2; 3; 4; 5; 6; 7; 8; 9] =
exemple_1 f (f a 1) [2; 3; 4; 5; 6; 7; 8; 9] =
exemple_1 f (f (f a 1) 2) [ 3; 4; 5; 6; 7; 8; 9] =
....
--
Rémi Vanicat
vanicat@labri.u-bordeaux.fr
http://dept-info.labri.u-bordeaux.fr/~vanicat
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prev parent reply other threads:[~2001-10-22 6:04 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-10-21 22:50 AgEnT007
2001-10-22 5:43 ` Remi VANICAT
2001-10-22 6:04 ` Remi VANICAT [this message]
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