I realize that the Units libary is still a work-in-progress, but I thought you might like to know about these failures. Using 1.35.0 with the latest Units code (SVN rev. 45355) and using GCC 4.1.2, I get these failures in test/:
test_limits, test_cmath
You will need get boost/math/special_functions from the trunk - Steven just checked in some revisions that replaced our ad hoc implementations of some of these math functions with those defined in Boost.Math.
Also, I cannot compile this simple test code. I may very well be doing something wrong:
#include <boost/units/systems/si.hpp> #include <boost/units/systems/other/foot.hpp> #include <boost/units/systems/detail/non_si_unit.hpp>
BOOST_UNITS_NON_SI_UNIT(survey, yard_per_sec, yard_per_sec, 0.3048006 * 3.0, boost::units::SI::velocity, 53);
typedef boost::units::quantity<boost::units::survey::yard_per_sec_base_unit, double> YardsPerSec;
int main() { YardsPerSec yps1; YardsPerSec yps2; yps1 -= yps2; }
This is probably because you need to convert the base unit into a unit by qualifying with unit_type : typedef boost ::units ::quantity <boost::units::survey::yard_per_sec_base_unit::unit_type,double> YardsPerSec; We should see if there is a way to at least warn in these cases... Matthias