Re: [Haskell-cafe] Convert IO Int to Int

"r <- randomRIO (1,10)" is NOT the source of error. Why do you think it is? ptrash wrote on 10.06.2009 15:55:

Hi,

I have tried on the console to write

x <- randomRIO(1,10) :t x

Everythings fine and the type of x is x :: Integer

Now I have tried to write a Method which gives me a Number of random numbers the same way but it doesn't work.

randomList :: Int -> [Integer] randomList 0 = [] randomList n = do r <- randomRIO (1, 10) r:randomList(n-1)

It says Couldn't match expected type `IO t' against inferred type `[t]' r <- randomRIO (1,10) causes an error. But why does it work on the console? Is there a way to solve it another way?