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Fix for new dequeue API

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hasufell
2015-09-05 00:51:12 +02:00
parent d8651ced4c
commit 2eba7118b9
2 changed files with 4 additions and 4 deletions
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4
QueueEx.hs
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@@ -9,13 +9,13 @@ import Data.Maybe
-- |Shift a queue to the left, such as:
-- [1, 2, 3] -> [2, 3, 1]
shiftQueueLeft :: BankersDequeue a -> BankersDequeue a
shiftQueueLeft = (\(b, nq) -> Q.pushBack nq (fromJust b)) <$> Q.popFront
shiftQueueLeft = (\(Just (b, nq)) -> Q.pushBack nq b) <$> Q.popFront
-- |Shift a queue to the right, such as:
-- [1, 2, 3] -> [3, 1, 2]
shiftQueueRight :: BankersDequeue a -> BankersDequeue a
shiftQueueRight = (\(b, nq) -> Q.pushFront nq (fromJust b)) <$> Q.popBack
shiftQueueRight = (\(Just (b, nq)) -> Q.pushFront nq b) <$> Q.popBack
-- |Convert a Queue back to a list.