http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53013
--- Comment #2 from john.stevens at f5 dot com 2012-04-16 21:47:11 UTC --- I would respectfully point out that "consistent", and "undefined by the standard", are two different things. I can expect consistent behavior that is not defined by the standard, but I agree that I may not expect that that behavior will be defined by the standard, nor that it will remain the same from one version to the next, only that the result generated by the same operation will give the same, undefined-by-the-standard, but consistent result. IOW, "undefined" means the standard deliberately refuses to make a statement about a real thing, it does not mean that the thing is not real. The difference here is akin to the difference between Philosophy and Natural Philosophy (Natural Philosophy being a proper subset of Philosophy that deliberately refrains from discussing real things that are outside the realm of Natural Philosophy). Thanks, John S. -----Original Message----- From: manu at gcc dot gnu.org [mailto:gcc-bugzi...@gcc.gnu.org] Sent: Monday, April 16, 2012 2:17 PM To: John Stevens Subject: [Bug c/53013] Inconsistent Behaviour with Left Shift Operator. http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53013 Manuel López-Ibáñez <manu at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |RESOLVED CC| |manu at gcc dot gnu.org Resolution| |INVALID --- Comment #1 from Manuel López-Ibáñez <manu at gcc dot gnu.org> 2012-04-16 21:16:48 UTC --- Sorry, you cannot expect consistency from undefined behaviour. It doesn't work that way: http://c-faq.com/ansi/undef.html And if you want to know why: http://www.eskimo.com/~scs/readings/undef.950321.html -- Configure bugmail: http://gcc.gnu.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You reported the bug.
