...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::tail_variate< VariateType, VariateTag, LeftRight >>
// In header: <boost/accumulators/statistics/tail_variate.hpp> template<typename VariateType, typename VariateTag, typename LeftRight> struct feature_of<tag::tail_variate< VariateType, VariateTag, LeftRight >> { };