...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::homogeneous_system
// In header: <boost/units/homogeneous_system.hpp> template<typename L> struct homogeneous_system { };
A system that can uniquely represent any unit which can be composed from a linearly independent set of base units. It is safe to rebind a unit with such a system to different dimensions.
Do not construct this template directly. Use make_system instead.