private CopyOnWriteList(CopyOnWriteList <T> other)
{
_backing = other._backing;
if (_backing != null)
{
lock (((ICollection)_backing).SyncRoot) {
_backing.AddRef();
}
}
}
public Enumerator(BackingList backing)
{
_backing = backing;
_inner = _backing.GetEnumerator();
_backing.AddRef();
}