NAME

insque, remque − insert or remove element from a queue

USAGE

struct qelem {
structqelem *q_forw;
structqelem *q_back;
charq_data[];
};

insque(elem, pred)
struct qelem *elem, *pred;

remque(elem)
struct qelem *elem;

DESCRIPTION

Insque and remque manipulate queues built from doubly linked lists.  Each element in the queue must be in the form of “struct qelem”.  Insque inserts elem in a queue immediately after pred; remque removes an entry elem from a queue.