Cast Operator Basics

castoperator

class A
{
public:
   A(int n): m_n(n){}
   int GetNumber() const { return m_n; }
   operator int() const { return GetNumber(); }
 
protected:
   int m_n;
};
 
int main()
{
   A a(3);
   int n = a;//Instead of using a.GetNumber();
   return 0;
}