Avoiding #ifdefs
Marek Vasut
marek.vasut at gmail.com
Wed Jan 6 03:02:06 EST 2010
Dne St 6. ledna 2010 07:46:59 CoDeBrEaKeR napsal(a):
> Thanks,
>
> But the stucture am using is pretty insanely nested.
So? Why don't you show us the real code? (please also stop top-posting).
>
> ~A
>
> --- On Wed, 1/6/10, Marek Vasut <marek.vasut at gmail.com> wrote:
> > From: Marek Vasut <marek.vasut at gmail.com>
> > Subject: Re: Avoiding #ifdefs
> > To: linux-arm at lists.infradead.org
> > Cc: "CoDeBrEaKeR" <codebreaker28 at yahoo.com>
> > Date: Wednesday, January 6, 2010, 11:53 AM
> > Dne St 6. ledna 2010 07:04:37
> >
> > CoDeBrEaKeR napsal(a):
> > > Most of the times its is easy to start having a lot of
> >
> > #ifdef statements in
> >
> > > your code. Since this is not a proper thing to
> >
> > do, placing the #ifdef in a
> >
> > > header file would be the usual suggestion. well,
> >
> > i understand this as far
> >
> > > as #ifdefs in functions are concerned. How about
> >
> > structures?
> >
> > > for Ex:
> > >
> > > static struct something = {
> > > .name
> >
> > = "xyz",
> >
> > > .driver_name
> >
> > = "something",
> >
> > > #ifdef SOME_ARCH_TYPE
> > > .bla
> >
> > = DO_THIS,
> >
> > > #else
> > > .bla
> >
> > =
> > DO_SOMETHING_ELSE,
> >
> > > #endif
> > > };
> > >
> > > How do i avoid #ifdef here, any idea??
> >
> > If you want to do some run-time detection, then do so and
> > assign 'bla' at
> > runtime...
> > if (x)
> > something.bla = somefn;
> > else
> > ...
> >
> > > Thanks.
> > >
> > > ~A
> > >
> > >
> > >
> > >
> > >
> > >
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> >
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