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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()
#------------------------------------------------------------------------------
# issue #14217
type
MyObject = object
p: ptr int
proc `=destroy`(x: var MyObject) =
if x.p != nil:
deallocShared(x.p)
proc `=`(x: var MyObject, y: MyObject) {.error.}
proc newMyObject(i: int): MyObject =
result.p = createShared(int)
result.p[] = i
proc test: seq[MyObject] =
for i in 0..3:
let x = newMyObject(i)
result.add x
var x = test()
for i in 0..3:
doAssert(x[i].p[] == i)
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