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Within LTS Haskell 24.40 (ghc-9.10.3)

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1. mapCArrayInPlace :: (Ix i, Storable e) => (e -> e) -> CArray i e -> CArray i e

   carray	Data.Array.CArray.Base

   In-place map on CArray. Note that this is IN PLACE so you should not retain any reference to the original. It flagrantly breaks referential transparency!

2. mapException :: (Exception e1, Exception e2) => (e1 -> e2) -> a -> a

   graphviz	Data.GraphViz.Exception

   This function maps one exception into another as proposed in the paper "A semantics for imprecise exceptions".

3. mapDotGraph :: (DotRepr dg n, DotRepr dg n') => (n -> n') -> dg n -> dg n'

   graphviz	Data.GraphViz.Types

   Change the node values. This function is assumed to be injective, otherwise the resulting graph will not be identical to the original (modulo labels).

4. mapAccounts :: (Account -> Account) -> Account -> Account

   hledger-lib	Hledger.Data.Account

   Map a (non-tree-structure-modifying) function over this and sub accounts.

5. maPlus :: MixedAmount -> MixedAmount -> MixedAmount

   hledger-lib	Hledger.Data.Amount

   Sum two MixedAmount, keeping the cost of the first if any. Amounts with different costs are kept separate (since 2021).

6. mapMixedAmount :: (Amount -> Amount) -> MixedAmount -> MixedAmount

   hledger-lib	Hledger.Data.Amount

   Apply a transform to a mixed amount's component Amounts.

7. mapM' :: Monad f => (a -> f b) -> [a] -> f [b]

   hledger-lib	Hledger.Utils

   Like mapM but uses sequence'.

8. mapAccumL :: (a -> Char -> (a, Char)) -> a -> JSString -> (a, JSString)

   jsaddle	Data.JSString

   O(n) Like a combination of map and foldl'. Applies a function to each element of a JSString, passing an accumulating parameter from left to right, and returns a final JSString. Performs replacement on invalid scalar values.

9. mapAccumR :: (a -> Char -> (a, Char)) -> a -> JSString -> (a, JSString)

   jsaddle	Data.JSString

   The mapAccumR function behaves like a combination of map and a strict foldr; it applies a function to each element of a JSString, passing an accumulating parameter from right to left, and returning a final value of this accumulator together with the new JSString. Performs replacement on invalid scalar values.

10. mapAccumL :: (a -> Char -> (a, Char)) -> a -> Stream Char -> (a, JSString)

    jsaddle	Data.JSString.Internal.Fusion

    O(n) Like a combination of map and foldl'. Applies a function to each element of a Text, passing an accumulating parameter from left to right, and returns a final JSString.

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