Struct template is_unit_of_system<unit< Dim, System >, System>

boost::units::is_unit_of_system<unit< Dim, System >, System>

Synopsis

// In header: <boost/units/is_unit_of_system.hpp>

template<typename Dim, typename System> 
struct is_unit_of_system<unit< Dim, System >, System> {
};