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17 lines
332 B
Idris
17 lines
332 B
Idris
import Data.IORef
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main : IO ()
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main
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= do x <- newIORef 42
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let y = x
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writeIORef y 94
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val <- readIORef x
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printLn val
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val <- readIORef y
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printLn val
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modifyIORef x (* 2)
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val <- readIORef x
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printLn val
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val <- readIORef y
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printLn val
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