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Task/Loops-While/Haskell/loops-while-2.hs
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Task/Loops-While/Haskell/loops-while-2.hs
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import Data.IORef
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import Control.Monad.Loops
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main :: IO ()
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main = do r <- newIORef 1024
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whileM_ (do n <- readIORef r
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return (n > 0))
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(do n <- readIORef r
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print n
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modifyIORef r (`div` 2))
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