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From: Chris Quinn <cq@htec.demon.co.uk>
To: leary@nwlink.com
Cc: caml <caml-list@inria.fr>
Subject: Re: [Caml-list] enums in OCaml?
Date: Thu, 14 Jun 2001 14:04:24 +0100	[thread overview]
Message-ID: <3B28B658.AF3E9B39@htec.demon.co.uk> (raw)
In-Reply-To: <20010614011550.A28578@jean>

A recent thread on the subject:
http://caml.inria.fr/archives/200105/msg00168.html

There's mention of an SML extension that solves this problem (ie. retaining the good typing properties).
Are the Caml designers considering this?

Chris Q.

leary@nwlink.com wrote:
> 
> Ok, I see how I can do this with a sum type and a function on it; but
> that's also a lot of repetitive setup.  Seems I could also just make a
> function that acted on strings:
> 
> let message_to = function
>         "accel" -> 1
>         | "stop" -> 0
>         | _ -> -1;;
> 
> ...which is perhaps less typing/editing up front, but a bit of a pain to
> type all the "s in the code.
> 
> So, what's so wrong with just using variables?
> 
> let Accel = 1;;
> let Stop = 0;;
> 
> seems pretty short to write and shortest to use...  Am I missing something
> ( elegant | obvious )?  Is that just ugly?
> 
> thanks
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  parent reply	other threads:[~2001-06-14 17:33 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2001-06-13  2:21 leary
2001-06-13  7:37 ` David Mentre
2001-06-13  8:20   ` leary
     [not found] ` <200106130751.f5D7pbL11758@ionie.inria.fr>
2001-06-13  8:18   ` leary
2001-06-13  8:46     ` David Mentre
2001-06-14  8:15 ` leary
2001-06-14  8:41   ` Chris Hecker
2001-06-14  8:53   ` Jacques Garrigue
2001-06-14  9:12   ` Francisco Valverde Albacete
2001-06-14 13:04   ` Chris Quinn [this message]
2001-06-13 20:50 leary

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