From: "Daniel Bünzli" <daniel.buenzli@epfl.ch>
To: caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Weak hash table for attaching extra data to an object
Date: Wed, 15 Aug 2007 14:33:48 +0200 [thread overview]
Message-ID: <F68E29A6-45BA-427D-BC06-17190529A369@epfl.ch> (raw)
In-Reply-To: <200708150133.23573.jon@ffconsultancy.com>
Le 15 août 07 à 02:33, Jon Harrop a écrit :
> I think Markus Mottl once said that all libraries should include
> phantom types...
I don't know if he said that however the point of a phantom type is
that there is no concrete value associated to it -- the phantom
parameter isn't used in the type definition. Hence phantoms are
useless if you need to decorate a type.
Daniel
next prev parent reply other threads:[~2007-08-15 12:33 UTC|newest]
Thread overview: 15+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-08-14 10:15 Richard Jones
2007-08-14 11:08 ` [Caml-list] " Thomas Fischbacher
2007-08-14 11:48 ` Till Varoquaux
2007-08-14 20:44 ` Jon Harrop
2007-08-14 23:09 ` Stefano Zacchiroli
2007-08-15 0:33 ` Jon Harrop
2007-08-15 12:33 ` Daniel Bünzli [this message]
2007-08-16 14:54 ` Markus Mottl
2007-08-15 1:28 ` skaller
2007-08-15 19:04 ` Richard Jones
2007-08-16 16:17 ` Some observations and measurements with using Weak Hashtable to annotate a tree (was: Re: [Caml-list] Weak hash table for attaching extra data to an object) Richard Jones
2007-08-14 16:22 ` [Caml-list] Weak hash table for attaching extra data to an object Richard Jones
2007-08-14 23:24 ` Till Varoquaux
2007-08-14 23:35 ` Fernando Alegre
2007-08-15 7:59 ` Richard Jones
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