http://gcc.gnu.org/bugzilla/show_bug.cgi?id=51795
--- Comment #14 from Marc Glisse <marc.glisse at normalesup dot org> 2012-01-27 13:35:29 UTC --- (In reply to comment #12) > I see. Before asking: 26.5/4 says that "all descriptions of calculations in > this subclause use mathematical real numbers". Ok, no need to ask then. > Thus should we use floats?!? Actually, using double is a common trick (that wouldn't be sufficient here): compute (double)a*(double)x/(double)m and round it to an integer q; then you can compute a*x-m*q modulo 2^64.
