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Tweak Array.deleteM #360

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Tweak Array.deleteM #360

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12 changes: 6 additions & 6 deletions Data/HashMap/Internal/Array.hs
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Original file line number Diff line number Diff line change
Expand Up @@ -422,13 +422,13 @@ delete ary idx = runST (deleteM ary idx)
-- | /O(n)/ Delete an element at the given position in this array,
-- decreasing its size by one.
deleteM :: Array e -> Int -> ST s (Array e)
deleteM ary idx = do
deleteM ary0 idx = do
CHECK_BOUNDS("deleteM", count, idx)
do mary <- new_ (count-1)
copy ary 0 mary 0 idx
copy ary (idx+1) mary idx (count-(idx+1))
unsafeFreeze mary
where !count = length ary
do mary0 <- unsafeThaw ary0
mary1 <- cloneM mary0 0 (count-1)
copy ary0 (idx+1) mary1 idx (count-(idx+1))
unsafeFreeze mary1
where !count = length ary0
{-# INLINE deleteM #-}

map :: (a -> b) -> Array a -> Array b
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