From: skaller <skaller@users.sourceforge.net>
To: "chris.danx" <chris.danx@ntlworld.com>
Cc: Jon Harrop <jon@jdh30.plus.com>, caml-list@yquem.inria.fr
Subject: Re: [Caml-list] Type problem... possible design problem
Date: 20 Dec 2004 22:50:12 +1100 [thread overview]
Message-ID: <1103543412.5079.67.camel@pelican.wigram> (raw)
In-Reply-To: <41C43E79.1040502@ntlworld.com>
On Sun, 2004-12-19 at 01:28, chris.danx wrote:
> My concern with variants is sharing subgraphs in graphs, will they be
> shared or copied?
It is up to you. Consider:
match ex with
| `A a -> `A a
| (`B b ) as x -> x
| x -> x
In the first case, you're making a new object, by executing
the constructor `A. In the second and third you're not.
In all cases, the constructor argument is shared.
--
John Skaller, mailto:skaller@users.sf.net
voice: 061-2-9660-0850,
snail: PO BOX 401 Glebe NSW 2037 Australia
Checkout the Felix programming language http://felix.sf.net
prev parent reply other threads:[~2004-12-20 11:50 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-12-18 0:42 chris.danx
2004-12-18 4:00 ` [Caml-list] " Matt Gushee
2004-12-18 8:07 ` Jon Harrop
2004-12-18 14:28 ` chris.danx
2004-12-18 15:27 ` Richard Jones
2004-12-18 20:06 ` chris.danx
2004-12-18 18:37 ` Jon Harrop
2004-12-20 11:50 ` skaller [this message]
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