Namespace pollution due to compiler.h in Xenomai 3.1
wd at denx.de
Fri Mar 13 15:22:48 CET 2020
In message <20200313141229.7C87C24003E at gemini.denx.de> I wrote:
> > > We noticed because out application also defines __packed...
> > That's indeed bad style which I didn't realize so far. All those
> > short-hands should be prefixed, e.g. like qt does (Q_NORETURN, Q_LIKELY
> > etc.).
> Was there not a rule in ANSI C that the use of double underscores in
> identifiers is reserved compiler internal definitions? I would expect
> that it's ok in compiler.h but incorrect in any application headers.
For example C99 section 7.1.3 (see ):
All identifiers that begin with an underscore and either an
uppercase letter or another underscore are always reserved
for any use.
So IMHO any definition of __packed... in application code is not
DENX Software Engineering GmbH, Managing Director: Wolfgang Denk
HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
If a train station is a place where a train stops,
then what's a workstation?
More information about the Xenomai