Created
December 3, 2011 02:19
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mwarpとmbindを書くとこんな感じ
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| import Maybe | |
| mwrap :: a -> Maybe a | |
| mwrap v = Just v | |
| mbind :: Maybe a -> (a -> Maybe b) -> Maybe b | |
| mbind Nothing _ = Nothing | |
| mbind (Just x) f = x |
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