On Tue, 3 Apr 2007 21:32:39 +0200 Stefan Seyfried <[EMAIL PROTECTED]> wrote:
> #define suspend_error(msg, args...) \
> do { \
> - fprintf(stderr, "suspend: " msg " Reason: %m\n", ## args); \
> + fprintf(stderr, "%s: " msg " Reason: %m\n", my_name, ## args); \
> } while (0);
> > > > What is this do { } while (0); thing good for?
> > >
> > > gcc magic, there is a good reason for it (something about breaking build
> > > instead of misbehaving at runtime), but i always foreget it.
> >
> > http://kernelnewbies.org/FAQ/DoWhile0
> >
> > BTW, the ending semicolon is not necessary.
>
> Yes. AFAICS it is even harmful, so i'll remove it in an extra commit.
If I read the FAQ above correctly the `do {} while (0);' thing is only
necessary if you want have more than one statement in your macro. It is
used to logically group stuff together. In this case it is unnecessary.
grts Tim
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