On Tue, Jul 28, 2009 at 13:25:35 -0400, Bill Davidsen <davidsen@xxxxxxx> wrote: > > The claim is that the test is optimized away, and that would seem to be > a separate issue from using the value of tun before testing. But that is valid because if you had deferenced a null pointer previously you are now in an undefined state and you can do anything. So it is valid to optimize the test away because it always fails if the pointer is not null and if it is null you are in a state where you are allowed to do anything. -- fedora-list mailing list fedora-list@xxxxxxxxxx To unsubscribe: https://www.redhat.com/mailman/listinfo/fedora-list Guidelines: http://fedoraproject.org/wiki/Communicate/MailingListGuidelines
