From: bonnardv@pratique.fr (Valentin Bonnard)
To: caml-list@inria.fr
Subject: Re: string variables in Printf.* calls: Bug, or lack of understanding?
Date: Mon, 24 Feb 1997 21:40:59 +0100 [thread overview]
Message-ID: <v01530500af37b857ebb9@[194.98.4.65]> (raw)
[English summary at the end]
>> Dans ce cas, comment avoir un record (en Caml-light):
>>
>> type Rec = { x: ('a, 'b, 'c) printf__format };;
>>
>> ne marche pas (variable 'a non lie'e).
>
>Apprenez le langage. type ('a, 'b, 'c) Rec = ...
Je veut bien, mais le record a plus de 10 champs ce qui
fait 30 variables de type pour qqchose qui n'est pas
polymorphe ! (Meme si pour Caml-light il l'est, du point
de vu du 'domaine du probleme' comme on dit, on a des
chaines indiquand un format; il n'y a aucun
polymorphisme la dedans.)
De plus je ne sais pas comment innitialiser les champs:
let f = { x = "toto" };;
ne fonctionne pas.
Tout cela signifie t'il que l'ordre dans lequel est fait
le typage est important ?
********
I want to have a record (in Caml-light) with printf
format strings.
type Rec = { x: ('a, 'b, 'c) printf__format };;
doesn't work because the vars a, b end c aren't bound.
I have more then 10 fields in the record so does it
means I need 30 type vars ?
Also I don't know how to create an instance of this
type.
BTW does the type-system depend on the order in which
things are typed ?
Valentin Bonnard
mailto:bonnardv@pratique.fr
http://www.pratique.fr/~bonnardv (Informations sur le C++ en Francais)
next reply other threads:[~1997-02-25 12:35 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
1997-02-24 20:40 Valentin Bonnard [this message]
-- strict thread matches above, loose matches on Subject: below --
1997-02-13 18:31 T. Kurt Bond
1997-02-18 16:39 ` Xavier Leroy
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