On Sun, May 09, 2021 at 09:55:57PM +0800, 陳偉銘 wrote:
> >Leon Romanovsky <leon@xxxxxxxxxx> 於 2021年5月9日 週日 下午8:22寫道：
> > Please don't top-post, use HTML emails and always CC mailing list.
>
> > I'm saying that there is a difference between two following snippets:
> > switch (value) {
> > case STATE_ONE:
> > do_something();
> > case STATE_TWO:
> > do_other();
> > break;
> > default:
> > WARN("unknown state");
> > }
> > and
> >
> > switch (value) {
> > case STATE_ONE:
> > case STATE_TWO:
> > do_other();
> > break;
> > default:
> > WARN("unknown state");
> > }
> >
> > While the first one needs "fallthrough" keyword, the second one doesn't.
>
> > Thanks
>
> Hi,
>
> Sorry for making trouble, hope that I make it right this time.
>
> Thanks for the detailed explanation, since that it is not needed to use
> "fallthrough" if no code in "case", maybe we should clarify for this
> condition in the documentataion? Otherwise, I guess there might be someone
> else like me making this mistake again in the future.
I don't think that it is necessary.
Thanks.
>
> Thanks!
>
> Wei Ming Chen
