On 4 November 2013 13:33, Norbert Dajka wrote: > Hello, > > I would like to know, if there is any difference (in allocated memory > space) between defining a function inline in the class declaration > (with the inline word), and defining a function inline explicit after > the class declaration. There is no difference. > In addition, does anybody know, why a previously only inline declared > function takes up more memory space, if it's declared virtual inline > (even if the classes to which the declaring class of the function is a > parent class doesn't have their own implementation)? Because virtual functions need additional metadata in the class, specifically in the ABI used by G++ the class must have a pointer to the vtable (if it didn't have one already) and the vtable will have an additional entry for the virtual function.
