Johan Tibell ha scritto:
On Sun, Mar 1, 2009 at 3:07 PM, Manlio Perillo <[email protected]> wrote:
Hi.
Maybe I'm missing something, but I don't understand why the following
program:
module Main where
import System.IO (Handle, withFile, ReadMode)
You want to import IOMode(..), not ReadMode. The latter is a data
constructor of the IOMode type.
import System.IO (Handle, withFile, IOMode(ReadMode))
solved the problem, thanks.
However, why individual data constructors of the IOMode type are not
exported?
Thanks Manlio
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