Method dequeue_bulk

include/dmlc/concurrentqueue.h:1668–1674

    template<typename It>
    inline size_t dequeue_bulk(It &itemFirst, size_t max) {
      if (isExplicit) {
        return static_cast<ExplicitProducer *>(this)->dequeue_bulk(itemFirst, max);
      } else {
        return static_cast<ImplicitProducer *>(this)->dequeue_bulk(itemFirst, max);
      }
    }

    inline ProducerBase *next_prod() const { return static_cast<ProducerBase *>(next); }