From: WatchDog <watchdog@free.fr>
To: caml <caml-list@inria.fr>
Subject: [Caml-list] Question sur les références.
Date: Fri, 28 Dec 2001 15:20:57 +0100 [thread overview]
Message-ID: <3C2C7FC9.86AD1CA3@free.fr> (raw)
Bonjour ! Cette petite fonction me pose des problèmes :
let resultat (a,b,c,d) position =
let pos=ref position in
!pos.(d).(c) <- !pos.(b).(a) ; !pos.(b).(a) <- V ;
!pos ;;
Quel ne fut pas mon étonnement en constatant que cette fonction se
permettait de modifier le contenu même de position, alors que je ne l'ai
utilisé qu'avec une référence (pos) qui pointait dessus !
Quand on écrit
let x = ref 1 in x := !x + 1;;
ça ne modifie pas la valeur de l'entier 1, non ???
Merci de votre éclairage.
--
"Il faut résister, combattre, affronter la mort.
Ainsi l'exige la vérité, la raison."
Jean CAVAILLES
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next reply other threads:[~2001-12-28 14:19 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2001-12-28 14:20 WatchDog [this message]
2001-12-28 15:36 ` hubert.fauque
2001-12-28 16:18 ` WatchDog
2001-12-28 17:27 ` hubert.fauque
2001-12-29 16:54 ` [Caml-list] lablGL and GLUT Christophe Raffalli
2001-12-30 8:15 ` [Caml-list] Re: [Caml-list] Question sur les références Alan Schmitt
2001-12-30 11:05 ` Daniel de Rauglaudre
2002-01-01 11:20 ` [Caml-list] " Alan Schmitt
2001-12-28 15:45 ` Daniel de Rauglaudre
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