Ang Way Chuang wrote:
Ang Way Chuang wrote:
Andrew Pinski wrote:
On Tue, Apr 29, 2008 at 9:08 PM, Ang Way Chuang <[EMAIL PROTECTED]> wrote:
Thanks for the speedy reply. But why this code:
int a = 17, b = 16;
a = a++ % 16;
results in a = 2 then? I think I need to know what is sequence
point. I'll
google that.
As I mentioned, the code is undefined so it could be any value.
Is there any flag in gcc that can provide warning to code that relies
on undefined behaviours?
Found it. -Wsequence-point which is enabled by -Wall. But gcc didn't
fart out any warning with -Wall or -Wsequence-point flag :(
You found a bug, it does point out the problem with the second example here.
Paolo
