Hi Russ,

You probably have the monomorphism restriction turned off, so you don't get an error message. If you add a type, it will work fine. Like this:

Prelude> read "123"
*** Exception: Prelude.read: no parse

Prelude> read "123" :: Int
123
Prelude>

Greets,

Edgar

On Wed, Oct 27, 2010 at 8:36 AM, Russ Abbott <russ.abbott@gmail.com> wrote:

Hi,

I'm having a problem with the read function. I thought it took a string and converted it into a value (if there is a conversion). But it doesn't seem to work for me on GHCi

Prelude> read "123"

*** Exception: Prelude.read: no parse

Prelude> read (show 123)

*** Exception: Prelude.read: no parse

There must be something trivial that I'm missing. 

Thanks.

-- Russ Abbott

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