Question

in

int salary() const { return mySalary; }

as far as I understand const is for this pointer, but I’m not sure. Can any one tell me what is the use of const over here?

Answer 1

Sounds like you’ve got the right idea, in C++ const on a method of an object means that the method cannot modify the object.

For example, this would not be allowed:

class Animal {
   int _state = 0;

   void changeState() const { 
     _state = 1;
   }
}