Date: Mon, 16 Aug 1999 09:51:18 +0200
From: Francois Pottier <Francois.Pottier@inria.fr>
To: Jacques GARRIGUE <email@example.com>
Subject: More confusion with mutually recursive type definitions
In-Reply-To: <19990816160801Q.firstname.lastname@example.org>; from Jacques GARRIGUE on Mon, Aug 16, 1999 at 04:08:01PM +0900
> But if it is yet to be defined (which is the case with mutually
> recursive definitions), you must keep everything monomorphic so that
> constraints can be enforced later.
OK, so I understand the following error message:
# type 'a t = 'a and u = int t and v = bool t;;
This type bool should be an instance of type int
But then, why is the following declaration accepted?
# type 'a t = 'a and u = A of int t and v = B of bool t;;
type 'a t = 'a
type u = | A of int t
type v = | B of bool t
I am still confused...
-- François Pottier Francois.Pottier@inria.fr http://pauillac.inria.fr/~fpottier/
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