...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::accumulators::feature_of<tag::weighted_sum_kahan>
// In header: <boost/accumulators/statistics/sum_kahan.hpp> struct feature_of<tag::weighted_sum_kahan> : public boost::accumulators::feature_of< tag::sum > { };