On Sun, Dec 27, 2009 at 01:35:43AM +0100, Juliusz Chroboczek wrote: > > There is no risk of breakage in optimised code with -O2 or more. > > For my education -- could you please explain why? (No need to quote the > C99 standard, just give me the intuition.) >
It is a false positive due to the fact level 2 is only an approximation with a lot of false positive. The punn+dereference pattern is handled correctly by GCC, that's why it does not trigger a warning in level 3 which is more precise. -- Aurelien Jarno GPG: 1024D/F1BCDB73 [email protected] http://www.aurel32.net -- To UNSUBSCRIBE, email to [email protected] with a subject of "unsubscribe". Trouble? Contact [email protected]
