Proposal #2769: Export mapAccumR from Data.Map, Data.IntMap

Matti Niemenmaa matti.niemenmaa+news at
Sun Nov 16 04:24:54 EST 2008

Ross Paterson wrote:
> Data.Traversable.mapAccumR also works on maps, but has a different type
> (matching the one on lists, and Data.Map.mapAccum).  I would suggest
> that mapAccumRWithKey would be a consistent name for this one.

Handy, I didn't know that. In that light I agree with you on the name.

> I think a week is too short, even for no-brainers.  People take breaks.

I'm not in any particular hurry: let's then say two weeks, for now.

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