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1. gmapAccumQ :: Data d => (forall e . Data e => a -> e -> (a, q)) -> a -> d -> (a, [q])

   syb	Data.Generics.Twins

   gmapQ with accumulation

2. gmapAccumQl :: Data d => (r -> r' -> r) -> r -> (forall e . Data e => a -> e -> (a, r')) -> a -> d -> (a, r)

   syb	Data.Generics.Twins

   gmapQl with accumulation

3. gmapAccumQr :: Data d => (r' -> r -> r) -> r -> (forall e . Data e => a -> e -> (a, r')) -> a -> d -> (a, r)

   syb	Data.Generics.Twins

   gmapQr with accumulation

4. gmapAccumT :: Data d => (forall e . Data e => a -> e -> (a, e)) -> a -> d -> (a, d)

   syb	Data.Generics.Twins

   gmapT with accumulation

5. concatMapM :: Monad m => (a -> m [b]) -> [a] -> m [b]

   extra	Control.Monad.Extra

   A version of concatMap that works with a monadic predicate.

6. mconcatMapM :: (Monad m, Monoid b) => (a -> m b) -> [a] -> m b

   extra	Control.Monad.Extra

   A version of mconcatMap that works with a monadic predicate.

7. mconcatMap :: Monoid b => (a -> b) -> [a] -> b

   extra	Data.List.Extra

   Version on concatMap generalised to a Monoid rather than just a list.

   mconcatMap Sum [1,2,3] == Sum 6
   \f xs -> mconcatMap f xs == concatMap f xs
   

8. concatMapM :: Monad m => (a -> m [b]) -> [a] -> m [b]

   extra	Extra

   A version of concatMap that works with a monadic predicate.

9. mconcatMap :: Monoid b => (a -> b) -> [a] -> b

   extra	Extra

   Version on concatMap generalised to a Monoid rather than just a list.

   mconcatMap Sum [1,2,3] == Sum 6
   \f xs -> mconcatMap f xs == concatMap f xs
   

10. mconcatMapM :: (Monad m, Monoid b) => (a -> m b) -> [a] -> m b

    extra	Extra

    A version of mconcatMap that works with a monadic predicate.

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