Re: [Haskell-cafe] Random Numbers for the beginner ?

6 Jul 2004


      sholderm@students.cs.uu.nl wrote:
<snip>
...
Use
(getStdRandom (randomR (1,6))) :: IO Int
This much is fine, but...
...
instead.
\begin{code}
module Main where
import Random
main :: IO ()
main =  do n <- (getStdRandom (randomR (1,6))) :: IO Int
         ; print n
\end{code}
Layout error: the semicolon must be indented further than the `n' is.
Furthermore, the semicolon is unnecessary; if it's deleted, yielding
...
main :: IO ()
main =  do n <- (getStdRandom (randomR (1,6))) :: IO Int
           print n
the code works just fine.

Jon Cast