QUEUE_NEXT_PREV    50 src/queue.h        QUEUE_NEXT_PREV(n) = QUEUE_PREV(h);                                       \
QUEUE_NEXT_PREV    71 src/queue.h        QUEUE_NEXT_PREV(q) = (q);                                                 \
QUEUE_NEXT_PREV    88 src/queue.h        QUEUE_NEXT_PREV(q) = QUEUE_PREV(q);                                       \