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e6383bc059b3923ba676a1df6d454eeb823d25ba
[ghc-hetmet.git]
/
ghc
/
tests
/
deSugar
/
should_compile
/
ds035.hs
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import GlaExts
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data CList = CNil | CCons Int# CList
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mk :: Int# -> CList
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mk n = case (n ==# 0#) of
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False -> CNil
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_ -> CCons 1# (mk (n -# 1#))
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clen :: CList -> Int#
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clen CNil = 0#
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clen (CCons _ cl) = 1# +# (clen cl)
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main = putStr (case len4_twice of
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8# -> "bingo\n"
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_ -> "oops\n")
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where
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list4 = mk 4#
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len4 = clen list4
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len4_twice = len4 +# len4