Behaviour

[prasoonthegreat]

int i=3;
printf("%d %d %d",++i,i,i++);

I want to know whether the above shows Undefined Behaviour or
Unspecified Behaviour ????

 

[Keith Thompson]

int i=3;
printf("%d %d %d",++i,i,i++);

I want to know whether the above shows Undefined Behaviour or
Unspecified Behaviour ????

It's undefined behavior. See C99 6.5p2.

 

[Barry Schwarz]

int i=3;
printf("%d %d %d",++i,i,i++);

I want to know whether the above shows Undefined Behaviour or
Unspecified Behaviour ????

Read the faq at www.c-faq.com. Your question is 3.2 but you should
read the whole thing.

 

[prasoonthegreat]

here ',' in the printf statement is not a sequence point .....
am I correct???

 

[Keith Thompson]

here ',' in the printf statement is not a sequence point .....
am I correct???

Correct -- "here" being in the code in the previous article, which we
can't see in your followup. When you post a followup, please keep
enough quoted context from the previous article so your followup makes
some sense to a reader who didn't see (or has forgotten) the previous
article.

 

[CBFalconer]

int i=3;
printf("%d %d %d",++i,i,i++);

I want to know whether the above shows Undefined Behaviour or
Unspecified Behaviour ????

Undefined.