Simulation.Aivika.DoubleLinkedList

Tested with: GHC 8.0.1

An imperative double-linked list.

Documentation

data DoubleLinkedList a

The DoubleLinkedList type represents an imperative double-linked list.

listNull :: DoubleLinkedList a -> IO Bool

Test whether the list is empty.

listCount :: DoubleLinkedList a -> IO Int

Return the number of elements in the list.

newList :: IO (DoubleLinkedList a)

Create a new list.

listInsertFirst :: DoubleLinkedList a -> a -> IO ()

Insert a new element in the beginning.

listAddLast :: DoubleLinkedList a -> a -> IO ()

Add a new element to the end.

listRemoveFirst :: DoubleLinkedList a -> IO ()

Remove the first element.

listRemoveLast :: DoubleLinkedList a -> IO ()

Remove the last element.

listRemove :: Eq a => DoubleLinkedList a -> a -> IO Bool

Remove the specified element from the list and return a flag indicating whether the element was found and removed.

listRemoveBy :: DoubleLinkedList a -> (a -> Bool) -> IO (Maybe a)

Remove an element satisfying the specified predicate and return the element if found.

listContains :: Eq a => DoubleLinkedList a -> a -> IO Bool

Detect whether the specified element is contained in the list.

listContainsBy :: DoubleLinkedList a -> (a -> Bool) -> IO (Maybe a)

Detect whether an element satisfying the specified predicate is contained in the list.

listFirst :: DoubleLinkedList a -> IO a

Return the first element.

listLast :: DoubleLinkedList a -> IO a

Return the last element.

clearList :: DoubleLinkedList a -> IO ()

Clear the contents of the list.

freezeList :: DoubleLinkedList a -> IO [a]

Freeze the list and return its contents.