Re: [spice-common v2 8/8] log: Let gcc know about the logging macros which abort

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> On Fri, Mar 29, 2019 at 11:30:46AM +0100, Christophe Fergeau wrote:
> > Without the added abort(), it cannot know g_log(G_LOG_LEVEL_CRITICAL)
> > will never return.
> > 
> > Signed-off-by: Christophe Fergeau <cfergeau@xxxxxxxxxx>
> > ---
> >  common/log.h | 5 +++++
> >  1 file changed, 5 insertions(+)
> > 
> > diff --git a/common/log.h b/common/log.h
> > index 7c67e7a..1482358 100644
> > --- a/common/log.h
> > +++ b/common/log.h
> > @@ -20,6 +20,7 @@
> >  
> >  #include <stdarg.h>
> >  #include <stdio.h>
> > +#include <stdlib.h>
> >  #include <glib.h>
> >  #include <spice/macros.h>
> >  
> > @@ -42,6 +43,7 @@ void spice_log(GLogLevelFlags log_level,
> >  #define spice_return_if_fail(x) G_STMT_START {                          \
> >      if G_LIKELY(x) { } else {                                           \
> >          spice_log(G_LOG_LEVEL_CRITICAL, SPICE_STRLOC, G_STRFUNC,
> >          "condition `%s' failed", #x); \
> > +        abort();
> > \
> >          return;                                                         \
> 
> The 'return' statment is now unreachable code & can be removed - surprised
> the compiler didn't complain that its unreachable.
> 

As OT I would also add that a "spice_return_if_fail" which don't return
is confusing, basically it's a hidden assert.

Frediano
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