> What is wrong with it?
Take a look at the Wiki, which has some explanation of the IO monad (which you're
using here, with the "do" notation):
http://haskell.org/wiki/wiki?UsingIo
http://haskell.org/wiki/wiki?ThatAnnoyingIoType
http://haskell.org/wiki/wiki?UsingMonads
Hope this helps!
--KW
There are a few things wrong with this...
> uni :: IO () -> Float
> uni = do
> xs <- newStdGen
> let
>m = (head (randoms xs) :: Float )
presumably, you want 'uni' to produce a random float. in this case, it
has the wrong type; it is actually an IO action that returns a F
On Wed, 24 Jul 2002 19:13:22 +0100 (BST)
Junjie Xu <[EMAIL PROTECTED]> wrote:
> uni :: IO () -> Float
> uni = do
> xs <- newStdGen
> let
> m = (head (randoms xs) :: Float )
let x = expr in something
You miss the "in something" part... quite that simple.
Vincenzo
___
Hi there,
First of all, I would say thank you very much for all who helped me during
the past days.
Since I am a beginner , sometime I spent even several hours to solve a
very simple problem.So, I still need your help in the future.
The problem is:
***
