http://gcc.gnu.org/bugzilla/show_bug.cgi?id=50922
--- Comment #4 from Rolf Pfister <pfister at pci dot uzh.ch> 2011-10-31 07:38:01 UTC --- Am 30.10.11 20:14, schrieb pinskia at gcc dot gnu.org: > --- Comment #3 from Andrew Pinski<pinskia at gcc dot gnu.org> 2011-10-30 > 19:14:49 UTC --- > Signed integer overflow is undefined so this is invalid. > If this is true, shouldnt the compiler give an error message or at least a warning? But I think incrementing is always well defined, even when overflowing. And in the example the result after occuring the overflow is not used anyway. Rolf
