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📝 liveDifference.

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This commit is contained in:
Rob Rix 2017-12-20 16:29:55 -05:00
parent 31a561751c
commit 06be77e006
1 changed files with 1 additions and 0 deletions
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src/Data/Abstract/Live.hs
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@ -26,6 +26,7 @@ liveInsert addr = Live . Set.insert addr . unLive
liveDelete :: Ord l => Address l v -> Live l v -> Live l v liveDelete :: Ord l => Address l v -> Live l v -> Live l v
liveDelete addr = Live . Set.delete addr . unLive liveDelete addr = Live . Set.delete addr . unLive
-- | Compute the (asymmetric) difference of two 'Live' sets, i.e. delete every element of the second set from the first set.
liveDifference :: Ord l => Live l v -> Live l v -> Live l v liveDifference :: Ord l => Live l v -> Live l v -> Live l v
liveDifference = fmap Live . (Set.difference `on` unLive) liveDifference = fmap Live . (Set.difference `on` unLive)