Re: [PATCH v2] rt-tests: printf format compile warning

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On Thu, 3 May 2012, Clark Williams wrote:

> On Thu, 03 May 2012 14:13:56 -0700
> Darren Hart <dvhart@xxxxxxxxxxxxxxx> wrote:
> 
> > 
> > 
> > On 05/03/2012 12:48 PM, Frank Rowand wrote:
> > > 
> > > V2: use type casting instead of ugly constant in format string
> > > 
> > > 
> > > Fix printf format string to fix compile warning for ARM 32 bit target.
> > > 
> > 
> > Oh much better. :-)
> > 
> > > Signed-off-by: Frank Rowand <frank.rowand@xxxxxxxxxxx>
> > > ---
> > >  src/cyclictest/cyclictest.c |    2 	1 +	1 -	0 !
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > > 
> > > Index: b/src/cyclictest/cyclictest.c
> > > ===================================================================
> > > --- a/src/cyclictest/cyclictest.c
> > > +++ b/src/cyclictest/cyclictest.c
> > > @@ -1575,7 +1575,7 @@ int main(int argc, char **argv)
> > >  		print_tids(parameters, num_threads);
> > >  		if (break_thread_id) {
> > >  			printf("# Break thread: %d\n", break_thread_id);
> > > -			printf("# Break value: %lu\n", break_thread_value);
> > > +			printf("# Break value: %llu\n", (unsigned long long)break_thread_value);
> > >  		}
> > >  	}
> > >  	
> > > 
> > 
> >
> 
> Yes, I like this better. I pulled the original and applied this.

Well, I really hate the C99 macros too, they're uglier than sin. But, you 
want to fix a compiler error on 32-bit by creating one on 64-bits? What 
are you guys smoking?

NAK

The above patch creates the following error on 64-bit
src/cyclictest/cyclictest.c:1564:4: warning: format ʽ%lluʼ expects 
argument of type ʽlong long unsigned intʼ, but argument 2 has type 
ʽuint64_tʼ [-Wformat]

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