/// Dequeues a value from the queue
/** @anchor cds_intrusive_MSQueue_dequeue
- If the queue is empty the function returns \p NULL.
+ If the queue is empty the function returns \p nullptr.
\par Warning
The queue algorithm has following feature: when \p dequeue is called,
/// Clear the queue
/**
- The function repeatedly calls \ref dequeue until it returns \p NULL.
+ The function repeatedly calls \ref dequeue until it returns \p nullptr.
The disposer defined in template \p Options is called for each item
that can be safely disposed.
*/