Re: text2interval again /
On 2013-03-08 10:08:19 -0500, Michel Hack wrote:
> Portability of directed rounding has improved a lot in the last
> ten years, as support of <fenv.h> in C has become widespread,
> with fesetround().
Actually, not really. Only some basic operations (like +, -, *, /)
are required to honor the active rounding direction mode. In F.10
Mathematics <math.h>, #10: "Whether the functions honor the rounding
direction mode is implementation-defined, unless explicitly specified
otherwise."
--
Vincent Lefèvre <vincent@xxxxxxxxxx> - Web: <http://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / AriC project (LIP, ENS-Lyon)