From: Elnatan Reisner <elnatan@cs.umd.edu>
To: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Representation of different polymorphic variants guaranteed to be different?
Date: Wed, 08 Jul 2009 15:32:00 -0400 [thread overview]
Message-ID: <1247081520.5510.31.camel@veruca.cs.umd.edu> (raw)
In-Reply-To: <20090708185415.GB11681@localhost>
On Wed, 2009-07-08 at 14:54 -0400, Eric Cooper wrote:
> On Wed, Jul 08, 2009 at 08:35:27PM +0200, Bruno Daniel wrote:
> > How is it ensured that I get a <> b for a and b created as
> > polymorphic variants from two different identifiers? Will pattern
> > matching give wrong results if I accidentally choose two different
> > identifiers translated to the same internal representation?
>
> See this thread:
> http://caml.inria.fr/pub/ml-archives/caml-list/2005/03/544288096a47d82ec870d01c8396f5fe.fr.html
>
> Short answer: collisions could theoretically occur, but are detected
> at link time.
That thread actually concludes that the check is at compile-time:
http://caml.inria.fr/pub/ml-archives/caml-
list/2005/03/7965b012288982e74718b2ae769dc189.fr.html
next prev parent reply other threads:[~2009-07-08 19:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-07-08 18:35 Bruno Daniel
2009-07-08 18:54 ` [Caml-list] " Eric Cooper
2009-07-08 19:32 ` Elnatan Reisner [this message]
2009-07-08 19:32 ` Bruno Daniel
2009-07-08 19:36 ` Frédéric van der Plancke
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