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- discard """
- output: '''
- test1 OK
- '''
- """
- import smart_ptr
- type
- Node[T] = object
- value: T
- next: SharedPtr[Node[T]]
- ForwardList[T] = object
- first: SharedPtr[Node[T]]
- len: Natural
- proc pushFront*[T] (list: var ForwardList[T], val: sink T) =
- var newNode = newSharedPtr(Node[T](value: val))
- var result = false
- while not result:
- var head = list.first
- newNode.get.next = head
- result = list.first.cas(head, newNode)
- list.len.atomicInc()
- proc test1() =
- var list: ForwardList[int]
- list.pushFront(1)
- doAssert list.len == 1
- echo "test1 OK"
- test1()
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