Re: can someone explain "inline" once and for all?

["Robert P. J. Day" <rpjday@mindspring.com>]

On Fri, 19 Jan 2007, Andreas Schwab wrote:

> "Robert P. J. Day" <rpjday@mindspring.com> writes:
>
> >   first, there appear to be three possible ways of specifying an
> > inline routine in the kernel source:
> >
> >   $ grep -r "static inline " .
> >   $ grep -r "static __inline__ " .
> >   $ grep -r "static __inline " .
> >
> > i vaguely recall that this has something to do with a distinction
> > between C99 inline and gcc inline
>
> No, it doesn't (there is no C99 compatible inline in gcc before
> 4.3).  It has to do with the fact that inline is not a keyword in
> C89, so you need to use a different spelling when you want to stay
> compatible with strict C89.

ok, so based on that and a bit more surfing, i see that either
"__inline" or "__inline__" are acceptable variants in gcc, and there
is no distinction between them, is that right?

but in terms of strict C89 compatibility, it would seem to be a bit
late for that given:

  $ grep -r "static inline " .

no?

rday
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