Question

Here is the .hpp file:

template<typename T>
LinkedQueue<T> operator=(const LinkedQueue<T> & lhs, const LinkedQueue<T> & rhs)
{
  m_data = rhs.m_data;
  m_next = rhs.m_next;
}

The error says that first line must be a nonstatic member function. Here is the class it is in:

template<typename T>
class LinkedQueue:public AbstractQueue<T>
{
public:
  T m_data;
  LinkedQueue *m_next;

  LinkedQueue<T> operator=(const LinkedQueue<T> & rhs);
  LinkedQueue();
  void clear();
  void enqueue(T x);
  void dequeue();
  const T& front() const;
  bool isEmpty() const;

};

Any idea as to what silly thing I am doing wrong?

Answer 1

You should add a class qualifier to the function definition, and remove the unused lhs parameter:

template<typename T>
LinkedQueue<T>& LinkedQueue::operator=(const LinkedQueue<T> & rhs)
//            ^--- & should be added to the declaration, too
{
    m_data = rhs.m_data;
    m_next = rhs.m_next;
    return *this;
}