...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::unit_test::data::monomorphic::is_dataset<singleton< T >>
// In header: <boost/test/data/monomorphic/singleton.hpp> template<typename T> struct is_dataset<singleton< T >> : public true_ { };