[Haskell-cafe] Reading showables

[Thomas Hartman]

One more thing.

  If your Read/Show instances are created by

data (or newtype) ...
  deriving (Read,Show)

then read . show will do the right thing.

Thomas.

Am 7. Dezember 2008 14:11 schrieb John Ky <newhoggy at gmail.com>:
> Hi,
>
> Is there a way to read Showables?
>
> main = do
>     putStrLn $ show $ read
>
> Thanks
>
> -John
>
>
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