On Wed, Dec 09, 2009 at 09:56:13PM +0100, Rainer Orth wrote: > Fedor Sergeev <Fedor.Sergeev at sun.com> writes: > > > Nor I have seen any requests from customers flying around about that. > > That's at least a data point. > > > As decimal floating point support is not likely to be included into the > > upcoming > > C and C++ standards (at least not sought out as that right now) it is > > "categorized" > > for SunStudio compiler project as a useful gcc feature. > > It's obviously not only a GCC feature: from > > http://www.google.de/url?sa=t&source=web&ct=res&cd=1&ved=0CAcQFjAA&url=http%3A%2F%2Fwww.ac.usc.es%2Farith19%2Fsites%2Fdefault%2Ffiles%2F3670a225-spec-session-DFP-paper2.pdf&ei=aw0gS_q0OonE-Qadv62BDA&usg=AFQjCNH0q579_YEVFUOhmap8wfCgTapkpg >
Thanks for the paper! > it seems that at least HP cc on IA-64 and Intel C++ implement it as > well. And Power6 even supports it in hardware, and IBM's xlc supports > that, of course. Obviously other vendors see the need, and it would be > good for Sun to at least follow, if it cannot lead the pack. Citing the above paper: "Widespread usage of the IEEE 754-2008 decimal floating-point arithmetic has yet to materialize, but progress in the first several months after adoption of the new standard is promising. " does not sound like 'the pack' went far enough IMO. Would Sun support it in hardware that would be a huge bump up in priority. > > > We do work on "useful gcc features", but honestly this one does not have a > > chance to hit the first > > half of my own priority list. > > > > Would it move from a technical report into the standard, that would change > > alot. > > There seems to be a misunderstanding here: pending the next revision of > the C standard, type 1/2 ISO TRs are as close to standardization as you > can get. Not in C/C++ standard near plans as per my sources. Thought it definitely may change. regards, Fedor. > > Rainer > > -- > ----------------------------------------------------------------------------- > Rainer Orth, Center for Biotechnology, Bielefeld University > _______________________________________________ > tools-compilers mailing list > tools-compilers at opensolaris.org
