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From: <olsongt@verizon.net>
To: caml-list@inria.fr
Subject: Re: Re: [Caml-list] Depend-type beginner question
Date: Fri, 05 Oct 2007 11:43:31 -0500 (CDT)	[thread overview]
Message-ID: <17047747.21961991191602611279.JavaMail.root@vms064.mailsrvcs.net> (raw)

> > The type system is not rich enough to distinguish between 0-lists'  
> > and 1-list's. It is just a list.
>
> So what is the gain ?

I'm not sure about the actual implementation, but in theory a list is something like:

type 'a list = Nil | Cons of 'a * 'a list

[] and [a]  and h :: t are just syntactic sugar.

So lists don't even know their own length internally, unlike an array.


                 reply	other threads:[~2007-10-05 16:46 UTC|newest]

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