[Haskell] Re: Parameterized Show

[Tomasz Zielonka]

On Mon, Nov 15, 2004 at 12:31:33PM +0000, Keean Schupke wrote:
> Easy:
> Here, with labelled instances you would write:
> 
>    show ShowHex 27
> 
> instead you write:
> 
>    show (ShowHex 27)

What about Ints buried deep in more complicated data structures:

    show ShowHex [[1, 2, 3], [4]]

vs.
    
    show (map (map ShowHex) [[1, 2, 3], [4]])

BTW, This thread reminds me a similar problem that was discussed on
haskell list. Unfortunately, there were some problems with this approach
(accumulating typeclass contexts).

  http://www.haskell.org/pipermail/haskell/2004-August/thread.html#14427

Best regards,
Tom

-- 
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