On Mon, 02 Mar 2009 15:18:17 +0100, friggin friggin
<[email protected]> wrote:
http://hpaste.org/fastcgi/hpaste.fcgi/view?id=1989#a1990
Is the algorithm wrong ar am I using it wrong?
The second parameter of extractTree is of type Tree a, you didn't suply a
line specifying what to do with the value (Leaf a), so you didn't cover
all possibilities of this type; that's why you get the message
"Non-exhaustive patterns in function extractTree".
Also, is the second argument to shuffle supposed to eb random numbers, ie
the function should be used in the IO Monad?
If you supply a prefabricated random list of Integers, this function can
be pure (i.e. not in the IO monad)
--
Met vriendelijke groet,
Henk-Jan van Tuyl
--
http://functor.bamikanarie.com
http://Van.Tuyl.eu/
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