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Within LTS Haskell 24.40 (ghc-9.10.3)
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mapM :: Monad m => (a -> m b) -> Pipe a b m rpipes Pipes.Prelude Apply a monadic function to all values flowing downstream
mapM return = cat mapM (f >=> g) = mapM f >-> mapM g
mapM_ :: Monad m => (a -> m ()) -> Consumer' a m rpipes Pipes.Prelude Consume all values using a monadic function
mapMaybe :: forall (m :: Type -> Type) a b r . Functor m => (a -> Maybe b) -> Pipe a b m rpipes Pipes.Prelude (mapMaybe f) yields Just results of f. Basic laws:
mapMaybe (f >=> g) = mapMaybe f >-> mapMaybe g mapMaybe (pure @Maybe . f) = mapMaybe (Just . f) = map f mapMaybe (const Nothing) = drain
As a result of the second law,mapMaybe return = mapMaybe Just = cat
mapCArrayWithLength :: (Storable a, Integral b) => b -> (a -> IO c) -> Ptr a -> IO ()haskell-gi-base Data.GI.Base.BasicConversions No documentation available.
mapGArray :: Storable a => (a -> IO b) -> Ptr (GArray a) -> IO ()haskell-gi-base Data.GI.Base.BasicConversions No documentation available.
mapGList :: (Ptr a -> IO b) -> Ptr (GList (Ptr a)) -> IO ()haskell-gi-base Data.GI.Base.BasicConversions No documentation available.
mapGSList :: (Ptr a -> IO b) -> Ptr (GSList (Ptr a)) -> IO ()haskell-gi-base Data.GI.Base.BasicConversions No documentation available.
mapPtrArray :: (Ptr a -> IO b) -> Ptr (GPtrArray (Ptr a)) -> IO ()haskell-gi-base Data.GI.Base.BasicConversions No documentation available.
mapZeroTerminatedCArray :: (Ptr a -> IO b) -> Ptr (Ptr a) -> IO ()haskell-gi-base Data.GI.Base.BasicConversions No documentation available.
mapGValueArrayWithLength :: Integral a => a -> (Ptr GValue -> IO c) -> Ptr GValue -> IO ()haskell-gi-base Data.GI.Base.GValue Map over the GValues inside a C array.