Boost C++ Libraries

...one of the most highly regarded and expertly designed C++ library projects in the world. — Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for a snapshot of the master branch, built from commit 064f557086.

Struct template is_quantity_of_system

boost::units::is_quantity_of_system — Check that a type is a quantity in a specified system.

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

template<typename T, typename System> 
struct is_quantity_of_system : public mpl::false_ {
};