Re: [Boost-users] [units] Creating a velocity unit

Yes, that's what I meant, but now that I see it written out, it's wrong because decltype keeps the const qualifier. You need the behavior of the non-standard typeof operator. BOOST_TYPEOF should work.

quantity(2.3 * nautical_mile); I tried this and it works. Is there a method, template or macro that lets me create the following two line like BOOST_UNITS_STATIC_CONSTANT? typedef metric::nautical_mile_base_unit::unit_type nautical_mile_unit; static const nautical_mile_unit nautical_mile; That way I don't have to create a name for the type and only use BOOST_TYPEOF if I need the type from the global constant. Ryan