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Merge branch 'master' of github.com:sdiehl/wiwinwlh

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Stephen Diehl 2016-11-07 00:43:09 +00:00
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@ -2779,13 +2779,13 @@ of a monadic context that need to hold a reference to themselves.
```haskell ```haskell
{-# LANGUAGE RecursiveDo #-} {-# LANGUAGE RecursiveDo #-}
justOnes :: [Int] justOnes :: Maybe [Int]
justOnes = do justOnes = do
rec xs <- Just (1:xs) rec xs <- Just (1:xs)
return (map negate xs) return (map negate xs)
``` ```
See: [Recursive Do Notation](https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/syntax-extns.html#recursive-do-notation) See: [Recursive Do Notation](https://downloads.haskell.org/~ghc/latest/docs/html/users_guide/glasgow_exts.html#the-recursive-do-notation)
Applicative Do Applicative Do
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