http://d.puremagic.com/issues/show_bug.cgi?id=8476
--- Comment #6 from [email protected] 2012-07-31 02:12:51 PDT --- (In reply to comment #5) > D made the decision early on that: > > more precision == better > > and that any program that relied on results being less accurate was a faulty > program. You are right, of course, and such problems are common: http://www.parashift.com/c++-faq-lite/floating-point-arith2.html On the other hand I remember one of my D programs not being as efficient as a very similar C++ program just because the C++ code used float-based operations instead of double-based ones, despite me typing float every FP variable and tagging with "f" every floating point literal. In some cases std.math return a double even if all it's required is a float, and the useless computation of the extra precision slows down the code compared to the C++ code that uses functions that return only a float precision. I presume the float versions of some functions perform less iterations to compute the smaller number of precision digits, and this makes them faster. And in some way std.math was unable to let me use the faster float version. -- Configure issuemail: http://d.puremagic.com/issues/userprefs.cgi?tab=email ------- You are receiving this mail because: -------
