From: "Andreas Rossberg" <AndreasRossberg@web.de>
To: <caml-list@inria.fr>
Subject: Re: [Caml-list] Semantics of physical equality
Date: Sat, 28 Feb 2004 10:55:37 +0100 [thread overview]
Message-ID: <007d01c3fde1$047c9bd0$404a06d5@wiko> (raw)
In-Reply-To: <20040228094034.81565.qmail@web41905.mail.yahoo.com>
sejourne kevin <sejourne_kevin@yahoo.fr> wrote:
>
> http://caml.inria.fr/ocaml/htmlman/libref/Pervasives.html
>
> Ho!
> A definition for mutable structures look ambiguous to
> me:
>
> type test =
> {
> mutable a:int;
> b:int
> };;
>
> let r = {a=0;b=2};;
>
> let x = r and y = r in
> assert((x.a==y.a)&&(x.b==y.b)&&(x==y))
> ;;
>
> Does this always ok ?
No, only
let x = r and y = r in
assert (x == y)
Neither r.b nor r.a are mutable, only r itself is.
- Andreas
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next prev parent reply other threads:[~2004-02-28 9:55 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-27 20:29 Kevin S. Millikin
2004-02-27 21:32 ` Basile STARYNKEVITCH
2004-02-27 22:59 ` Michal Moskal
2004-02-28 9:40 ` sejourne kevin
2004-02-28 9:55 ` Andreas Rossberg [this message]
2004-02-28 10:07 ` Michal Moskal
2004-02-28 9:56 ` Michal Moskal
2004-02-28 10:21 ` Andreas Rossberg
2004-02-28 10:34 ` Michal Moskal
2004-02-28 10:45 ` Andreas Rossberg
2004-02-28 11:25 ` Michal Moskal
2004-02-27 23:16 Kevin S. Millikin
2004-02-27 23:48 ` Michal Moskal
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