I did implement the copy constructor but still its not working what could be the problem?

/** @file
*
* @course CS1521
* @section 1
*
* Pointer-based <tt>Queue</tt> class...

thanks

how do you implement a copy constructor for this pointer-based ADT
queue

#include "Queuep.h"
#include <cassert>
#include <new>
using namespace std;

Queue::Queue () : backPtr (0),...