element           515 libdb/queue.h  	struct quehead *element = a, *head = b;
element           517 libdb/queue.h  	element->qh_link = head->qh_link;
element           518 libdb/queue.h  	element->qh_rlink = head;
element           519 libdb/queue.h  	head->qh_link = element;
element           520 libdb/queue.h  	element->qh_link->qh_rlink = element;
element           526 libdb/queue.h  	struct quehead *element = a;
element           528 libdb/queue.h  	element->qh_link->qh_rlink = element->qh_rlink;
element           529 libdb/queue.h  	element->qh_rlink->qh_link = element->qh_link;
element           530 libdb/queue.h  	element->qh_rlink = 0;