1. ► Operator overloading allows to write common operator definition of user defined classes

2. ► Operator overloading works only on pass by value

3. ► Polymorphism results in more memory because of:

4. ► Operator overloading is very much like function overloading

5. ► An object of abstract class cannot be created

6. ► Operator overloading may lead to copies

7. ► Most common unary operator is ‘()’

8. ► A pure virtual function can be defined in base class

9. ► static_cast makes use of run-time information

10. ► Derived class must implement pure virtual functions

11. ► Polymorphism is slower than function overloading

12. ► Exact virtual function is decided at run-time

13. ► Interfaces in C++ are implemented through polymorphism