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Date: Wed, 23 Nov 2005 21:16:29 +0900 (JST)
Message-Id: <20051123.211629.68536541.keiko@kurims.kyoto-u.ac.jp>
To: christophe.papazian@gmail.com
Cc: caml-list@inria.fr
Subject: Re: [Caml-list] covariance newb question
From: Keiko Nakata <keiko@kurims.kyoto-u.ac.jp>
In-Reply-To: <5FABF242-1101-4499-8CF5-CF1559F6EECC@essi.fr>
References: <5FABF242-1101-4499-8CF5-CF1559F6EECC@essi.fr>
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From: Christophe Papazian <christophe.papazian@gmail.com>
> But type t seems to be covariant :
> 
> # let f : 'a t = (fun x -> x);;
> val f : 'a t = <fun>
> # let g : int t = f;;
> val g : int t = <fun>

To my understanding, 
this is an instantiation of the type variable 'a to int,
not subtyping.

Hope this helps.

Keiko NAKATA