Hi Takashi Thank you for your reply > Is the conversion just for readability / consistency reason? > Or would it bring other benefit like code safety? > Honestly speaking, I see no big advantage of conversion, if it's only > about the readability. Yes, it is just for readability, and I can agree that it is not so big benefit. It is the reason why asked it before posting the patch-bomb. > A generic macro like Amadeusz suggested would be an interesting idea, > and that can be seen as a cleanup. But the straightforward conversion > for the mass, I don't know whether it's worth... It can be adjusted to generic macro. I will post [RFC v2] patch. Thank you for your help !! Best regards --- Kuninori Morimoto