/* ================================================================ 
   Define a user-defined type "my_int"

   This time, we cluse additional rule to allow my_int to
   be added to a float:
   ================================================================ */
class my_int
{
public:
   int operator+(float x)
   {
      return(x + value);
   }

   int value;
};

my_int A;
float B, C;

int main(int argc, char **argv)
{
   C = A + B;	// <---- Now C++ does not complain...
}