Usage of ANSI-C |const| in X11 code...

[Roland Mainz]

Paul Vojta wrote:
> > Are there still any problems which forbids code to use the ANSI-C
> > |const| modifer ? Looking at the code lots of places could employ the
> > |const| keyword to save some memory at runtime...
> > ... if there aren't any problems left (AFAIK the tree now requires at
> > least C89 which includes |const| support) then I'd like to do some
> > cleanup...
> 
> X has been using _Xconst for a long time...

Yeah, but note the underscore (indicating that it's more some
(semi-)private stuff) - |_Xconst| is more a hack for the old days when
K&R compilers needed to be supported. Since a while ANSI-C89 support is
the minimum required and some code in libX11, Xserver and other places
already uses |const| without causing complains. So my question is
whether code can now "officially" use |const| directly (CC:'ing
xorg-arch at lists.x.org as this is more an architecture question, IMO we
need need a clear statement that ANSI-C89 is now the minimum level and
all it's features[1] can be used by Xorg code) ...

[1]=Next question would be whether the |inline| keyword can be used in
Xorg code - |inline| is newer than ANSI C89 (maybe C99 but I am not
sure) but most compilers incl. gcc, Sun Workshop/Forte/One and the MS
compiler support it right now...

----

Bye,
Roland

-- 
  __ .  . __
 (o.\ \/ /.o) roland.mainz at nrubsig.org
  \__\/\/__/  MPEG specialist, C&&JAVA&&Sun&&Unix programmer
  /O /==\ O\  TEL +49 641 7950090
 (;O/ \/ \O;)