C++ Priority Queues

empty

  bool empty();

The empty() function returns true if the current priority queue is empty, and false otherwise.

pop

  void pop();

The function pop() discards the first element in the current priority queue.

push

  void push( const TYPE &val );

The function push() adds an element to the current priority queue.

size

  size_type size();

The size() function returns the number of things in the current priority queue.

top

   TYPE &top();

The top() function returns a reference to the element in the queue with the highest priority. Note that only pop() removes an element.