On 2012-02-03 16:51:22 -0500, Robert Dewar wrote: > All machines that implement IEEE arithmetic :-) As we know only too well > from the universe of machines on which we implement GNAT, this is not > all machines :-)
But I think that machines with no IEEE support will tend to disappear (and already tends to disappear). IEEE support has even been introduced in GPU's. And users who need a good arithmetic will run their code on machines capable of providing one. Concerning the sincos problem here, this is just a bug in the library, which doesn't follow Intel's spec. Note that the glibc manual says that sincos is implemented on the x86_64 with a maximum error of 1 ulp (Section 19.7 Known Maximum Errors in Math Functions), so that the code clearly doesn't follow the documentation. -- Vincent Lefèvre <vinc...@vinc17.net> - 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)
