...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::units::metric::liter_base_unit
// In header: <boost/units/base_units/metric/liter.hpp> struct liter_base_unit : public boost::units::base_unit< liter_base_unit, si::volume::dimension_type, 13 > { // public static functions static const char * name(); static const char * symbol(); };