Part of the class definition of a C++ linked-list implementation of a simple first-in-first-out queue is shown below. Show the C++ code for the pop() function of the class. class queuetype\{ public: bool empty O; void pop O; void push(float num); float front(); queueType (); private: struct nodeType \{ float info; nodeType * 1ink; \}; nodeType "first, "last, "temp; \}