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From: "rguenth at gcc dot gnu.org" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug c++/53900] [regression] Too optimistic on a alignment assert Date: Mon, 09 Jul 2012 16:19:00 -0000 [thread overview] Message-ID: <bug-53900-4-mPuTp8PKYp@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-53900-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53900 --- Comment #3 from Richard Guenther <rguenth at gcc dot gnu.org> 2012-07-09 16:18:58 UTC --- Well, I suggest you instead do struct Foo { float array[4]; Foo() { std::cout << array << "\n"; // check the object is really aligned if (std::ptrdiff_t(array) & std::ptrdiff_t(0xf)) != 0) assert (false); <...code assuming array is aligned...> } }; and the compiler will figure out that array is aligned in code dominated by the alignment check.
next prev parent reply other threads:[~2012-07-09 16:19 UTC|newest] Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-07-09 14:57 [Bug c++/53900] New: " gael.guennebaud at gmail dot com 2012-07-09 15:23 ` [Bug c++/53900] [regression] " rguenth at gcc dot gnu.org 2012-07-09 16:12 ` gael.guennebaud at gmail dot com 2012-07-09 16:19 ` rguenth at gcc dot gnu.org [this message] 2012-07-10 11:09 ` gael.guennebaud at gmail dot com 2012-12-28 17:47 ` xarthisius.kk at gmail dot com 2013-01-07 4:27 ` pinskia at gcc dot gnu.org 2013-01-07 10:19 ` chtz at informatik dot uni-bremen.de 2013-01-07 10:22 ` pinskia at gcc dot gnu.org 2015-02-19 15:27 ` jacob.benoit.1 at gmail dot com
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