#1816: Add Data.Set.mapMaybe
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Reporter: guest | Owner:
Type: proposal | Status: new
Priority: normal | Milestone: Not GHC
Component: libraries/base | Version: 6.8
Severity: normal | Keywords:
Difficulty: Unknown | Os: Unknown
Testcase: | Architecture: Unknown
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This function is also available for lists (from Data.Maybe) and Maps
(Data.Set).
The semantics are straightforward:
{{{
mapMaybe f = fromList . catMaybes . map f . toList
}}}
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Ticket URL: <http://hackage.haskell.org/trac/ghc/ticket/1816>
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The Glasgow Haskell Compiler
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