Sunil

On Mon, Aug 8, 2011 at 5:15 PM, Ertugrul Soeylemez <es@ertes.de> wrote:

Sunil S Nandihalli <sunil.nandihalli@gmail.com> wrote:

> module Main where
> import Prelude
>
> stringToInt::String->Int
> stringToInt str = read str
>
> main =
> do x<-getLine
> y<-stringToInt x
> print y

It is a type problem. Using the '<-' syntax for 'stringToInt' requires
that it is a monadic function (like: String -> IO Int), but it is not.
Since it is not monadic, you can simply let-bind the result to a name:

do xStr <- getLine
let x = stringToInt xStr
print x

Or more simply:

do xStr <- getLine
print (stringToInt xStr)

Greets,
Ertugrul

--
nightmare = unsafePerformIO (getWrongWife >>= sex)
http://ertes.de/

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