Function dequeue

extern/libcds/cds/intrusive/fcqueue.h:181–196

Removes the next element from the queue If the queue is empty the function returns \p nullptr */

            If the queue is empty the function returns \p nullptr
        */
        value_type * dequeue()
        {
            auto pRec = m_FlatCombining.acquire_record();
            pRec->pVal = nullptr;

            constexpr_if ( c_bEliminationEnabled )
                m_FlatCombining.batch_combine( op_deq, pRec, *this );
            else
                m_FlatCombining.combine( op_deq, pRec, *this );

            assert( pRec->is_done());
            m_FlatCombining.release_record( pRec );

            m_FlatCombining.internal_statistics().onDequeue( pRec->bEmpty );
            return pRec->pVal;
        }

        /// Removes the next element from the queue (a synonym for \ref dequeue)
        value_type * pop()