Struct template subtract_typeof_helper<quantity< unit< Dim, System >, X >, quantity< unit< Dim, System >, Y >>
boost::units::subtract_typeof_helper<quantity< unit< Dim, System >, X >, quantity< unit< Dim, System >, Y >>
Synopsis
// In header: <boost/units/quantity.hpp>
template<typename Dim,typename System,typename X,typename Y>structsubtract_typeof_helper<quantity<unit<Dim,System>,X>,quantity<unit<Dim,System>,Y>>{// typestypedefsubtract_typeof_helper<X,Y>::typevalue_type;typedefunit<Dim,System>unit_type;typedefquantity<unit_type,value_type>type;};
Статья Struct template subtract_typeof_helper<quantity< unit< Dim, System >, X >, quantity< unit< Dim, System >, Y >> раздела The Boost C++ Libraries BoostBook Documentation Subset Reference может быть полезна для разработчиков на c++ и boost.