List Archive: gentoo-amd64
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On Fri, 1 Jul 2011 00:58:46 +0000 (UTC)
Duncan <1i5t5.duncan@...> wrote:
> I had wondered if this might be an "undefined behavior" optimization bug,
Well, the amd64 users list may not be the appropriate place to discuss
C programming, but the problem here stems from attempting to do things
with C that are not supposed to be done with C. Such things are aptly
called "tricks" because they stray away from the convention.
Ideally, I suppose, for these purposes would be to use assembly language
routines mixed into the C code. But this is not as easy as with the
Anyway, I'm glad I presented this issue. It has definitely improved
my understanding. GCC has dozens, if not hundreds, of compile options
and I know the actual function of only a small few.