=====empty===== Syntax: #include bool empty() const; The empty() function returns true if the queue has no elements, false otherwise. For example, the following code uses empty() as the stopping condition on a while loop to clear a queue while displaying its contents: queue q; for( int i = 0; i < 5; i++ ) { q.push(i); } while( !q.empty() ) { cout << q.front() << endl; q.pop(); } Related Topics: [[size]]