From: Jerome Vouillon <Jerome.Vouillon@inria.fr>
To: David Monniaux <monniaux@clipper.ens.fr>,
Liste CAML <caml-list@inria.fr>
Subject: Re: Array interface question
Date: Sun, 24 Jan 1999 16:44:03 +0100 [thread overview]
Message-ID: <19990124164403.11999@pauillac.inria.fr> (raw)
In-Reply-To: <Pine.GSO.4.04.9901231154460.5422-100000@brick.ens.fr>; from David Monniaux on Sat, Jan 23, 1999 at 11:57:28AM +0100
On Sat, Jan 23, 1999 at 11:57:28AM +0100, David Monniaux wrote:
> On Fri, 22 Jan 1999, Pierre Weis wrote:
>
> > > Why is there no creation function which does not take a default
> > > value for filling the array?
>
> Perhaps the solution is to have an improved implementation of the 'a
> option type, where a NULL pointer would mean "None" and anything else
> would be the element of type 'a.
>
> Is there anything wrong with this approach? [except that it could break
> some interfaced C code that relies on NULL pointers in "private" types..]
The problem is that you need to be able to differentiate None from
Some None, Some (Some None), ...
-- Jerome
next prev parent reply other threads:[~1999-01-24 21:39 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
1999-01-22 19:10 Brian Rogoff
1999-01-22 19:21 ` Pierre Weis
1999-01-22 20:05 ` Brian Rogoff
1999-01-23 10:47 ` Anton Moscal
1999-01-23 10:57 ` David Monniaux
1999-01-24 15:44 ` Jerome Vouillon [this message]
1999-01-24 21:36 ` Pierre Weis
1999-01-28 19:57 ` Brian Rogoff
1999-01-23 14:00 ` Size of arrays Juan Jose Garcia Ripoll
1999-01-24 22:31 ` Pierre Weis
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