C++: Read-only member function

class MyClass
{
 private:
  int _AsInteger;
 public:
  const int &AsInteger;

  MyClass() : _AsInteger(0), AsInteger(_AsInteger)
  {
  }

  void SetDefault()
  {
    _AsInteger= 17;
  }
};


MyClass obj1;
int a = obj1.AsInteger; //success
obj1.AsInteger= 1337; //compiler error

This way, you have a member that appears public but really isn't.