Steven Watanabe <watanabesj <at> gmail.com> writes:
AMDG
Can you post the definitions of FPS::foot, FPS::system &c.
In Christ, Steven Watanabe
Here is the definition for feet (using centimeters as an example): #ifndef BOOST_UNITS_FPS_LENGTH_HPP #define BOOST_UNITS_FPS_LENGTH_HPP #include <boost/units/systems/fps/base.hpp> namespace boost { namespace units { namespace FPS { typedef unit<length_dimension,FPS::system> length; BOOST_UNITS_STATIC_CONSTANT(foot,length); BOOST_UNITS_STATIC_CONSTANT(feet,length); } // namespace FPS } // namespace units } // namespace boost #endif // BOOST_UNITS_FPS_LENGTH_HPP Note: in the following I have a slug_base_unit, but I can't get this to work even if I strip out slugs and seconds, and only try working with feet. #ifndef BOOST_UNITS_FPS_BASE_HPP #define BOOST_UNITS_FPS_BASE_HPP #include <string> #include <boost/units/io.hpp> #include <boost/units/static_constant.hpp> #include <boost/units/unit.hpp> #include <boost/units/make_system.hpp> #include <boost/units/systems/base_units/foot.hpp> #include <boost/units/systems/base_units/slug.hpp> #include <boost/units/systems/base_units/second.hpp> namespace boost { namespace units { namespace FPS { // Note: called fps for foot-pound-second, but mass unit is slugs typedef make_system<foot_base_unit, slug_base_unit, second_base_unit>::type system; /// dimensionless FPS unit typedef unit<dimensionless_type,system> dimensionless; } // namespace FPS } // namespace units } // namespace boost #endif // BOOST_UNITS_FPS_BASE_HPP FPS is a fairly common system where I work, and although it is short for foot-pounds-seconds since pounds is a force, the mass unit is slugs. Pat