[Haskell-beginners] Is there a way to hide an existing data type so that I can use my own version?

[Costello, Roger L.]

Ah, excellent. Thanks Henk-Jan.

This works perfectly:

--------------------------------------------------------
import Prelude hiding (Either, Left, Right)

data Either a b = Left a | Right b
                           deriving (Show)
--------------------------------------------------------

/Roger


-----Original Message-----
From: Henk-Jan van Tuyl [mailto:hjgtuyl at chello.nl] 
Sent: Tuesday, July 31, 2012 7:19 AM
To: beginners at haskell.org; Costello, Roger L.
Subject: Re: [Haskell-beginners] Is there a way to hide an existing data type so that I can use my own version?

On Tue, 31 Jul 2012 13:08:38 +0200, Costello, Roger L.  
<costello at mitre.org> wrote:

> import Prelude hiding Either

That should be:
   import Prelude hiding (Either)

Regards,
Henk-Jan van Tuyl


-- 
http://Van.Tuyl.eu/
http://members.chello.nl/hjgtuyl/tourdemonad.html
Haskell programming
--