int main() {
cout << "sizeof(Parent) = " << sizeof(Parent) << endl;
cout << "sizeof(Child) = "
<< sizeof(Child) << endl;
Child C;
C.change();
C.printAge();
C.increaseAge();
C.printAge();
C.Parent::setAge(50); //Invoke parent version
C.setAge(55);
C.printAge();
C.printSSN();
// Parent P;
//P.increaseAge();
//P.printAge();
}
int Child_set_age(lua_State *lua)
{
Child *child = castUData<Child>(lua, 1);
if (child && lua_isnumber(lua, 2))
{
child->setAge(lua_tointeger(lua, 2));
}
return 0;
}