add unsafeLocalState from Haskell 2010, and docs

[ghc-base.git] / Control / Monad.hs

diff --git a/Control/Monad.hs b/Control/Monad.hs
index 7d43db9..5b46f8f 100644 (file)
--- a/Control/Monad.hs
+++ b/Control/Monad.hs
@@ -127,8 +127,6 @@ class Monad m => MonadPlus m where
    -- > mzero >>= f  =  mzero
    -- > v >> mzero   =  mzero
    --
-   -- (but the instance for 'System.IO.IO' defined in Control.Monad.Error
-   -- in the mtl package does not satisfy the second one).
    mzero :: m a 
    -- | an associative operation
    mplus :: m a -> m a -> m a
@@ -224,7 +222,7 @@ the list arguments. This could be an issue where @('>>')@ and the `folded
 function' are not commutative.
 
 
->       foldM f a1 [x1, x2, ..., xm ]
+>       foldM f a1 [x1, x2, ..., xm]
 
 ==