On Tuesday, 29 January 2013 at 16:42:49 UTC, Andrei Alexandrescu
wrote:
On 1/29/13 11:05 AM, Thiez wrote:
On Tuesday, 29 January 2013 at 14:22:06 UTC, Don wrote:
The key phrase is *undefined behaviors*. Remember that C does
not
require twos-complement arithmetic. D does, so it doesn't
have those
problems in the first place.
It must have been a dozen times by now that you have posted
the same
misinformation over and over again, with links to papers you
have
apparently not read.
So D has no undefined integer behavior at all? Doesn't that
waste many
opportunities for optimization?
It would be quite problematic for a non-twos-complement
architecture to emulate D.
Is that a practical limitation ? All widespread arch I know
assembly for are 2 complement, and it seems like something
settled now in the field. Or am I unaware of some important stuff
?
