Rule Definition
If you need a copy constructor, you also need a destructor and operator=. If you need a copy constructor, it's because you need something like a deep copy, or some other management of resources. Thus it is almost certain that you will need a destructor and assignment operator. If you don't need a copy constructor (because the default-generated copy constructor would be correct), you should let the compiler generate it: it will not contain bugs, and you will often not have to update it when the class is modified.

Remediation
Prevent default generation of the destructor and assignment operator: - Provide your own version - Or declare it private without implementing it to prevent the operation (for assignment operator)

"C++ Notes: OOP: Copy Constructors":http://www.fredosaurus.com/notes-cpp/oop-condestructors/copyconstructors.html