From: "Chris King" <colanderman@gmail.com>
To: "Stefan Monnier" <monnier@iro.umontreal.ca>
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] Void type?
Date: Sat, 28 Jul 2007 00:51:14 -0400 [thread overview]
Message-ID: <875c7e070707272151v2dc46c2ap3f7ed4ebd005726e@mail.gmail.com> (raw)
In-Reply-To: <jwvvec5dv32.fsf-monnier+gmane.comp.lang.caml.inria@gnu.org>
On 7/28/07, Stefan Monnier <monnier@iro.umontreal.ca> wrote:
> Is there a void type in OCaml (i.e. a type which has no values), or a way to
> simulate it?
If you're looking for a "true" void (as opposed to the unit type,
which has exactly one value), just declaring it as an abstract type:
type void
should do the trick. You will be unable to instantiate any values of
that type using pure O'Caml (i.e. no Obj.magic or C code).
- Chris
next prev parent reply other threads:[~2007-07-28 4:51 UTC|newest]
Thread overview: 38+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-28 4:14 Stefan Monnier
2007-07-28 4:33 ` [Caml-list] " Erik de Castro Lopo
2007-07-28 4:51 ` Chris King [this message]
2007-07-28 18:49 ` Stefan Monnier
2007-07-28 18:53 ` Basile STARYNKEVITCH
2007-07-29 0:48 ` Stefan Monnier
2007-07-28 18:57 ` Arnaud Spiwack
2007-07-28 6:12 ` Daniel de Rauglaudre
2007-07-28 6:15 ` Chung-chieh Shan
2007-07-28 8:22 ` [Caml-list] " rossberg
2007-07-29 6:31 ` Chung-chieh Shan
2007-07-29 11:05 ` [Caml-list] " Arnaud Spiwack
2007-07-29 11:16 ` Jon Harrop
2007-07-29 11:36 ` Arnaud Spiwack
2007-07-29 12:43 ` Richard Jones
2007-07-29 12:58 ` Arnaud Spiwack
2007-07-29 17:02 ` Richard Jones
2007-07-29 20:06 ` Arnaud Spiwack
2007-07-29 22:55 ` Brian Hurt
2007-07-30 4:40 ` skaller
2007-07-30 23:13 ` Brian Hurt
2007-07-31 8:52 ` Richard Jones
2007-07-31 13:08 ` Chris King
2007-07-31 15:27 ` Markus Mottl
2007-08-01 11:37 ` Tom
2007-08-01 16:23 ` Markus Mottl
2007-07-30 4:44 ` Geoffrey Alan Washburn
2007-07-30 13:11 ` [Caml-list] " Brian Hurt
2007-07-30 13:32 ` Christopher L Conway
2007-07-30 13:35 ` Geoffrey Alan Washburn
2007-07-30 13:41 ` [Caml-list] " Chris King
2007-07-30 17:43 ` Christophe Raffalli
2007-07-30 17:58 ` Markus Mottl
2007-07-30 14:27 ` Jeff Polakow
2007-07-28 7:58 ` Sébastien Hinderer
2007-07-28 8:13 ` [Caml-list] " Basile STARYNKEVITCH
2007-07-28 12:29 ` Christophe TROESTLER
2007-07-28 13:36 ` Brian Hurt
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