lkml.org 
[lkml]   [2003]   [Jul]   [13]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: Avoiding "unused variable" warnings
Andrey Borzenkov wrote:
> I think I have seen it somewhere but forgot.
>
> Is it possible to create a noop macro that makes compiler believe macro
> arguments are used? I mean the case of debug macro that for debug off is
> redefined as something like do { } while(0) but then if arguments are used
> for debugging purposes only compiler emits warning. Some people do not like
> it :)


No need for a macro, just do

(void) var_name;

It doesn't generate any code, and it shuts up the compiler.

Jeff



-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/

\
 
 \ /
  Last update: 2005-03-22 13:46    [W:0.079 / U:0.212 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site