no idea what's up yet.
-richy.
--
Richard B. Kreckel
http://www.ginac.de/~kreckel/
differences between 4.3 and 4.4.
FP intensive code could be also affected by:
This code isn't using floating-point.
-richy.
--
Richard B. Kreckel
http://www.ginac.de/~kreckel/
compiling with -O2. And there hasn't been a measurable
performance differences between 4.3 and 4.4.
-richy.
--
Richard B. Kreckel
http://www.ginac.de/~kreckel/
that correctness.
Bottom line: without such a warning, -fwrapv should be the default and
should not be turned off by any -O option.
Regards
-richy.
--
Richard B. Kreckel
http://www.ginac.de/~kreckel/
, but assumed by
many of its users, unless explicitly told to follow that standard (with
-fwrapv). That is A Bad Idea.
Cheers
-richy.
--
Richard B. Kreckel
http://www.ginac.de/~kreckel/
of
the analogy with IEEE real arithmetic.
-richy.
--
Richard B. Kreckel
http://www.ginac.de/~kreckel/
Marcin Dalecki wrote:
On 2006-12-20, at 22:48, Richard B. Kreckel wrote:
2) Signed types are not an algebra, they are not even a ring, at
least when their elements are interpreted in the canonical way as
integer numbers. (Heck, what are they?)
You are apparently using a different
programs which depend on wrapping signed
integers. Silently breaking LIA-1 semantics is imprudent.
-richy.
--
Richard B. Kreckel
http://www.ginac.de/~kreckel/
accidentally fire that ballistic rocket. (If it really
can, then you're having a truck load of other problems besides code
quality.)
Saludos
-richy.
--
Richard B. Kreckel
http://www.ginac.de/~kreckel/
.
[0] http://gcc.gnu.org/develop.html
[1] I don't talk about distros that use the latest version from HEAD.
Screw them!
--
Richard B. Kreckel
http://www.ginac.de/~kreckel/
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