From: Damien Doligez <damien.doligez@inria.fr>
To: caml-list <caml-list@yquem.inria.fr>
Subject: Re: [Caml-list] (int * int) <> int*int ?
Date: Fri, 24 Feb 2006 13:59:01 +0100 [thread overview]
Message-ID: <16A0DC2D-113B-47DA-BA9B-4F6F04B04CE5@inria.fr> (raw)
In-Reply-To: <009b01c638ac$6a57b0e0$1f570b50@mshome.net>
On Feb 23, 2006, at 20:07, Frédéric Gava wrote:
> Morever I think that int*int=(int*int) "everywhere" in ML...
This is definitely not true. Consider the following example:
$ ocaml
Objective Caml version 3.09.2+dev4 (2006-02-09)
# let int = 0;;
val int : int = 0
# let t = [| 1 |];;
val t : int array = [|1|]
# t.(int*int);;
- : int = 1
# t.int*int;;
Unbound record field label int
#
This example is very similar to your problem. The substring "int*int"
appears in your program, but it is not _by_itself_ a subexpression of
your
program, so there is no reason why it should be equivalent to
"(int*int)".
As Jacques said, what we have here is an unfortunate choice of syntax
for
the declaration of n-ary constructors, combined with overloading of
constructor applications, to n arguments or to one tuple argument.
-- Damien
next prev parent reply other threads:[~2006-02-24 12:58 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-02-23 17:28 Frédéric Gava
2006-02-23 18:33 ` [Caml-list] " Eric Cooper
2006-02-23 19:03 ` Martin Jambon
2006-02-23 19:07 ` Frédéric Gava
2006-02-23 20:15 ` Brian Hurt
2006-02-23 21:30 ` Frédéric Gava
2006-02-23 21:57 ` Brian Hurt
2006-02-23 22:30 ` Frédéric Gava
2006-02-23 22:50 ` Brian Hurt
2006-02-23 23:07 ` Frédéric Gava
2006-02-24 8:38 ` Alessandro Baretta
2006-02-24 12:59 ` Damien Doligez [this message]
2006-02-23 18:33 ` Thomas Fischbacher
2006-02-23 18:56 ` David Brown
2006-02-23 19:24 ` Frédéric Gava
2006-02-23 19:37 ` Frédéric Gava
2006-02-23 19:45 ` Frédéric Gava
2006-02-24 0:01 ` Jacques Garrigue
2006-02-24 0:18 ` Lukasz Stafiniak
2006-02-24 2:17 ` Jacques Garrigue
2006-02-24 13:07 ` Alain Frisch
2006-02-25 17:42 ` Vincent Balat
2006-02-25 18:30 ` Nicolas Pouillard
2006-02-25 19:09 ` Richard Jones
2006-03-01 12:48 ` Nicolas Pouillard
2006-02-25 23:17 ` Christophe TROESTLER
2006-03-01 13:01 ` Nicolas Pouillard
2006-02-27 11:14 ` camlp4 renovation [was: [Caml-list] (int * int) <> int*int ?] Hendrik Tews
2006-02-24 13:39 ` [Caml-list] (int * int) <> int*int ? Nicolas Cannasse
2006-02-24 14:49 ` Frédéric Gava
2006-02-24 8:27 ` also for tagged records? [Was: Re: [Caml-list] (int * int) <> int*int ?] Sebastian Egner
2006-02-24 14:01 ` Thomas Fischbacher
2006-02-23 20:58 ` [Caml-list] (int * int) <> int*int ? Jon Harrop
2006-02-23 21:36 ` Frédéric Gava
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