Const object of a class can call non-const member function of class - Functions

Discussion

• Brijesh   -Posted on 09 Oct 15
  A const object of a class can call non-const member function of the class is false statement because const class objects can only call const member functions.
  Example:
  class Add {
  int a, b;
  public:
  int setValue(int i, int j) const
  {
     return i+j;
  }
  };
  
  
  int main()
  {
    const Add addObj;
  
     cout << "Summation =:" << addObj.setValue(3, 4);
     return 0;
  }
  
  In the above program addObj is constant. It calls the setValue method that is also constant function. If you remove the const keyword of function setValue then it will give error.
  

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