If I can get your input on the correct interpretation of the test results, then I can verify test-passed and fix cpp_dec_float, thereby supplying you with the patch for your approval.
Thanks. I've just committed your polynomial example, plus some simple integer examples. Also tightened up some of the tests relating to cpp_dec_float - current SVN does not pass those tests - but the version you sent me with the modifications I mentioned (changing all *uses* of cpp_dec_float_max_digits10 to cpp_dec_float_total_digits10) does. I've also found a bug in my: template <unsigned D> cpp_dec_float& operator=(const cpp_dec_float<D>& f) and template <unsigned D> cpp_dec_float(const cpp_dec_float<D>& f) which needs fixing, but I'll let you complete whatever refactoring needs doing on those constants first. Cheers, John.