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cyclic types

Radu Grigore
- Radu Grigore
- Remi Vanicat
  - brogoff
    - Radu Grigore
      - Damien Doligez
        
        brogoff
        
        Radu Grigore
        
        William Lovas
      - Xavier Leroy
        
        Christophe Raffalli
        
        sejourne_kevin
    - skaller
      - brogoff

Date:	-- (:)
From:	Remi Vanicat <remi.vanicat@g...>
Subject:	Re: [Caml-list] cyclic types

On Sat, 29 Jan 2005 14:15:43 +0200, Radu Grigore <radugrigore@gmail.com> wrote:
> Why are cyclic types forbidden?
> 
> I was forced to use the definition:
>   type forest = Forest of forest StringMap.t | Empty
> where I would have rather used
>   type forest = forest StringMap.t
> The error is:
>   The type abbreviation tree is cyclic

You can use the -rectypes of the ocaml compiler or toplevel to allow
cyclic type.