Re: [Boost-users] [Units] help with type-safe unit-specific conversions

I have conversions working fine for built-in types, but for both scaled types and user-defined types I don't know how to get indirect conversions to compile. Here is an example: #include #include #include #include void f() { typedef metric::bar_base_unit::unit_type bars; typedef boost::units::scale<10,static_rational<3> > kilo_type; typedef make_scaled_unit::type kbars; const kbars kilobars; typedef boost::units::scale<10,static_rational<6> > mega_type; typedef make_scaled_unitsi::pressure,mega_type::type mpa; const mpa megapascals; typedef boost::units::quantitysi::pressure Pascals; typedef boost::units::quantity<mpa> Megapascals; typedef boost::units::quantity<kbars> Kilobars; Megapascals p(.5*kilobars); std::cout << Kilobars(p) << std::endl; } If I directly convert it works - e.g., Kilobars(Pascals(p)). Do I need to use BOOST_UNITS_DEFAULT_CONVERSION to set a default conversion? If so - which part(s) of the chain need it? Justin