[Libvir] [PATCH] Check calls to printf-like functions (and some fixes)

[Daniel P. Berrange]

On Mon, Mar 12, 2007 at 05:16:52PM +0000, Richard W.M. Jones wrote:
> * Fix qemudDebug when debug not enabled

Its not clear what was broken about the existing code ?

This chunk:

>  #ifdef ENABLE_DEBUG
>  #define qemudDebug(...) qemudLog(QEMUD_DEBUG, __VA_ARGS__)
>  #else
> -#define qemudDebug(fmt, ...) do { } while(0);
> +#define qemudDebug(fmt, ...)
>  #endif

Will break / silently change code semantics, if qemudDebug is used in
situations like


   if (foo)
     qemudDebug("blah")
   wizz()

Because when compiling without debug, it turns into

   if (foo)
      wizz()

Regards,
Dan.
-- 
|=- Red Hat, Engineering, Emerging Technologies, Boston.  +1 978 392 2496 -=|
|=-           Perl modules: http://search.cpan.org/~danberr/              -=|
|=-               Projects: http://freshmeat.net/~danielpb/               -=|
|=-  GnuPG: 7D3B9505   F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505  -=|