Haskell Hierarchical Libraries (base package) Contents Index

Data.FunctorM Portability portable Stability provisional Maintainer libraries@haskell.org

Description

fmapM generalises fmap, just as mapM generalises map.

Documentation

class FunctorM f where

Methods fmapM :: Monad m => (a -> m b) -> f a -> m (f b) fmapM_ :: Monad m => (a -> m b) -> f a -> m () Instances FunctorM Maybe FunctorM [] Ix i => FunctorM (Array i)

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