...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::dimensionless_type — Dimension lists in which all exponents resolve to zero reduce to dimensionless_type
.
// In header: <boost/units/dimensionless_type.hpp> struct dimensionless_type { // types typedef dimensionless_type type; typedef unspecified tag; typedef mpl::long_< 0 > size; };