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Date: Thu, 18 Feb 2010 15:24:06 +0100
From: =?utf-8?B?U3TDqXBoYW5l?= Gimenez <stephane.gimenez@pps.jussieu.fr>
To: The Caml Mailing List <caml-list@inria.fr>
Subject: Re: type generalization of recursive calls
Message-ID: <20100218142406.GA511089@tenebreuse>
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References: <20100217163424.GA38458@tenebreuse>
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X-Spam: no; 0.00; gimenez:01 gimenez:01 recursive:01 damien:01 workarounds:01 ocaml:01 coq:01 phane:98 phane:98 pps:01 jussieu:01 data:02 caml:02 btw:03 occurrence:03 

Hi,

Thanks for your answers. Thanks to Damien for the handy
workarounds and to Boris for the sevral insightful comments.

I'll probably switch to the svn version, waiting for 3.12...

I think 3.13 was a typo, see:
  http://caml.inria.fr/svn/ocaml/trunk/Changes

Stéphane

PS:
btw, looks like coq is not really fond of this data type:

Inductive t a : Type :=
  | E : t a
  | D : t a -> t a -> t a
  | O : a -> t a
  | I : t (t a) -> t a
.

Error: Non strictly positive occurrence of "t" in "t (t a) -> t a".