Re: Avoiding "unused variable" warnings

[Jeff Garzik]

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