systems.cpp

Boost provides free peer-reviewed portable C++ source libraries. We emphasize libraries that work

BOOST_UNITS_DEFINE_SINGLE_UNIT_SYSTEM(us,fluid_dram,volume)
BOOST_UNITS_DEFINE_SINGLE_UNIT_SYSTEM(us,teaspoon,volume)
BOOST_UNITS_DEFINE_SINGLE_UNIT_SYSTEM(us,tablespoon,volume)
BOOST_UNITS_DEFINE_SINGLE_UNIT_SYSTEM(us,fluid_ounce,volume)
BOOST_UNITS_DEFINE_SINGLE_UNIT_SYSTEM(us,gill,volume)
BOOST_UNITS_DEFINE_SINGLE_UNIT_SYSTEM(us,cup,volume)
BOOST_UNITS_DEFINE_SINGLE_UNIT_SYSTEM(us,pint,volume)
BOOST_UNITS_DEFINE_SINGLE_UNIT_SYSTEM(us,quart,volume)
BOOST_UNITS_DEFINE_SINGLE_UNIT_SYSTEM(us,gallon,volume)

#ifdef __GNUC__
#include <cxxabi.h>
#endif

inline std::string demangle(const char* name)
{
    #ifdef __GNUC__
    // need to demangle C++ symbols
    char*       realname;
    std::size_t len; 
    int         stat;
     
    realname = abi::__cxa_demangle(name,NULL,&len,&stat);
    
    if (realname != NULL)
    {
        const std::string    out(realname);
        free(realname);
        
        return out;
    }
    
    return std::string("demangle :: error - unable to demangle specified symbol");
    #else
    return name;
    #endif
}

int main(void)
{
    using namespace boost::units;
    
    {
        using namespace boost::units::angle;
        
        std::cout << "Testing angle base units..." << std::endl;
        
        quantity<arcsecond_plane_angle>        as(1.0*arcseconds);
        quantity<arcminute_plane_angle>        am(1.0*arcminutes);
        quantity<degree_plane_angle>        d(1.0*degrees);
        quantity<gradian_plane_angle>        g(1.0*gradians);
        quantity<radian_plane_angle>        r(1.0*radians);
        quantity<revolution_plane_angle>    rev(1.0*revolutions);
        
        std::cout << as << " = " << quantity<si::plane_angle>(as) << std::endl
                  << am << " = " << quantity<si::plane_angle>(am) << std::endl
                  << d << " = " << quantity<si::plane_angle>(d) << std::endl
                  << g << " = " << quantity<si::plane_angle>(g) << std::endl
                  << r << " = " << quantity<si::plane_angle>(r) << std::endl
                  << rev << " = " << quantity<si::plane_angle>(rev) << std::endl
                  << std::endl;
    
        std::cout << rev << "/" << as << " = " << quantity<si::dimensionless>(rev/as) << std::endl
                  << rev << "/" << am << " = " << quantity<si::dimensionless>(rev/am) << std::endl
                  << rev << "/" << d << " = " << quantity<si::dimensionless>(rev/d) << std::endl
                  << rev << "/" << g << " = " << quantity<si::dimensionless>(rev/g) << std::endl
                  << rev << "/" << r << " = " << quantity<si::dimensionless>(rev/r) << std::endl
                  << std::endl;
                  
        // conversions only work with exponent of +/- 1 in scaled_base_unit?
        std::cout << as << " = " << quantity<arcsecond_plane_angle>(as) << std::endl
                  << am << " = " << quantity<arcsecond_plane_angle>(am) << std::endl
                  << d << " = " << quantity<arcsecond_plane_angle>(d) << std::endl
                  << rev << " = " << quantity<arcsecond_plane_angle>(rev) << std::endl
                  << std::endl;
                  
        // conversions only work with exponent of +/- 1 in scaled_base_unit? see arcsecond.hpp
        std::cout << as << " = " << quantity<arcminute_plane_angle>(as) << std::endl
                  << am << " = " << quantity<arcminute_plane_angle>(am) << std::endl
                  << d << " = " << quantity<arcminute_plane_angle>(d) << std::endl
                  << rev << " = " << quantity<arcminute_plane_angle>(rev) << std::endl
                  << std::endl;

        std::cout << as << " = " << quantity<degree_plane_angle>(as) << std::endl
                  << am << " = " << quantity<degree_plane_angle>(am) << std::endl
                  << d << " = " << quantity<degree_plane_angle>(d) << std::endl
                  << rev << " = " << quantity<degree_plane_angle>(rev) << std::endl
                  << std::endl;
                  
        std::cout << as << " = " << quantity<revolution_plane_angle>(as) << std::endl
                  << am << " = " << quantity<revolution_plane_angle>(am) << std::endl
                  << d << " = " << quantity<revolution_plane_angle>(d) << std::endl
                  << rev << " = " << quantity<revolution_plane_angle>(rev) << std::endl
                  << std::endl;
                  
        quantity<steradian_solid_angle>        sa1(1.0*steradians);
        
        std::cout << sa1 << std::endl
                  << std::endl;
    }
    
    {
        using namespace boost::units::astronomical;

        std::cout << "Testing astronomical base units..." << std::endl;
        
        quantity<light_second_length>        ls(1.0*light_seconds);
        quantity<light_minute_length>        lm(1.0*light_minutes);
        quantity<astronomical_unit_length>    au(1.0*astronomical_units);
        quantity<light_hour_length>            lh(1.0*light_hours);
        quantity<light_day_length>            ld(1.0*light_days);
        quantity<light_year_length>            ly(1.0*light_years);
        quantity<parsec_length>                ps(1.0*parsecs);
        
        std::cout << ls << " = " << quantity<si::length>(ls) << std::endl
                  << lm << " = " << quantity<si::length>(lm) << std::endl
                  << au << " = " << quantity<si::length>(au) << std::endl
                  << lh << " = " << quantity<si::length>(lh) << std::endl
                  << ld << " = " << quantity<si::length>(ld) << std::endl
                  << ly << " = " << quantity<si::length>(ly) << std::endl
                  << ps << " = " << quantity<si::length>(ps) << std::endl
                  << std::endl;
                  
        std::cout << ly << "/" << ls << " = " << quantity<si::dimensionless>(ly/ls) << std::endl
                  << ly << "/" << lm << " = " << quantity<si::dimensionless>(ly/lm) << std::endl
                  << ly << "/" << au << " = " << quantity<si::dimensionless>(ly/au) << std::endl
                  << ly << "/" << lh << " = " << quantity<si::dimensionless>(ly/ld) << std::endl
                  << ly << "/" << ld << " = " << quantity<si::dimensionless>(ly/lh) << std::endl
                  << ly << "/" << ps << " = " << quantity<si::dimensionless>(ly/ps) << std::endl
                  << std::endl;
                  
        std::cout << ls << " = " << quantity<light_second_length>(ls) << std::endl
                  << lm << " = " << quantity<light_second_length>(lm) << std::endl
                  << lh << " = " << quantity<light_second_length>(lh) << std::endl
                  << ld << " = " << quantity<light_second_length>(ld) << std::endl
                  << ly << " = " << quantity<light_second_length>(ly) << std::endl
                  << std::endl;
                  
        std::cout << ls << " = " << quantity<light_minute_length>(ls) << std::endl
                  << lm << " = " << quantity<light_minute_length>(lm) << std::endl
                  << lh << " = " << quantity<light_minute_length>(lh) << std::endl
                  << ld << " = " << quantity<light_minute_length>(ld) << std::endl
                  << ly << " = " << quantity<light_minute_length>(ly) << std::endl
                  << std::endl;
                  
        std::cout << ls << " = " << quantity<light_hour_length>(ls) << std::endl
                  << lm << " = " << quantity<light_hour_length>(lm) << std::endl
                  << lh << " = " << quantity<light_hour_length>(lh) << std::endl
                  << ld << " = " << quantity<light_hour_length>(ld) << std::endl
                  << ly << " = " << quantity<light_hour_length>(ly) << std::endl
                  << std::endl;
                  
        std::cout << ls << " = " << quantity<light_day_length>(ls) << std::endl
                  << lm << " = " << quantity<light_day_length>(lm) << std::endl
                  << lh << " = " << quantity<light_day_length>(lh) << std::endl
                  << ld << " = " << quantity<light_day_length>(ld) << std::endl
                  << ly << " = " << quantity<light_day_length>(ly) << std::endl
                  << std::endl;
                  
        std::cout << ls << " = " << quantity<light_year_length>(ls) << std::endl
                  << lm << " = " << quantity<light_year_length>(lm) << std::endl
                  << lh << " = " << quantity<light_year_length>(ld) << std::endl
                  << ld << " = " << quantity<light_year_length>(lh) << std::endl
                  << ly << " = " << quantity<light_year_length>(ly) << std::endl
                  << std::endl;
    }
    
    {
        using namespace boost::units::imperial;
        
        std::cout << "Testing imperial base units..." << std::endl;
        
        quantity<thou_length>            iml1(1.0*thous);
        quantity<inch_length>            iml2(1.0*inchs);
        quantity<foot_length>            iml3(1.0*foots);
        quantity<yard_length>            iml4(1.0*yards);
        quantity<furlong_length>        iml5(1.0*furlongs);
        quantity<mile_length>            iml6(1.0*miles);
        quantity<league_length>            iml7(1.0*leagues);
        
        std::cout << iml1 << " = " << quantity<si::length>(iml1) << std::endl
                  << iml2 << " = " << quantity<si::length>(iml2) << std::endl
                  << iml3 << " = " << quantity<si::length>(iml3) << std::endl
                  << iml4 << " = " << quantity<si::length>(iml4) << std::endl
                  << iml5 << " = " << quantity<si::length>(iml5) << std::endl
                  << iml6 << " = " << quantity<si::length>(iml6) << std::endl
                  << iml7 << " = " << quantity<si::length>(iml7) << std::endl
                  << std::endl;

        std::cout << iml7 << "/" << iml1 << " = " << quantity<si::dimensionless>(iml7/iml1) << std::endl
                  << iml7 << "/" << iml2 << " = " << quantity<si::dimensionless>(iml7/iml2) << std::endl
                  << iml7 << "/" << iml3 << " = " << quantity<si::dimensionless>(iml7/iml3) << std::endl
                  << iml7 << "/" << iml4 << " = " << quantity<si::dimensionless>(iml7/iml4) << std::endl
                  << iml7 << "/" << iml5 << " = " << quantity<si::dimensionless>(iml7/iml5) << std::endl
                  << iml7 << "/" << iml6 << " = " << quantity<si::dimensionless>(iml7/iml6) << std::endl
                  << std::endl;
                  
        std::cout << iml1 << " = " << quantity<thou_length>(iml1) << std::endl
                  << iml2 << " = " << quantity<thou_length>(iml2) << std::endl
                  << iml3 << " = " << quantity<thou_length>(iml3) << std::endl
                  << iml4 << " = " << quantity<thou_length>(iml4) << std::endl
                  << iml5 << " = " << quantity<thou_length>(iml5) << std::endl
                  << iml6 << " = " << quantity<thou_length>(iml6) << std::endl
                  << iml7 << " = " << quantity<thou_length>(iml7) << std::endl
                  << std::endl;

        std::cout << iml1 << " = " << quantity<inch_length>(iml1) << std::endl
                  << iml2 << " = " << quantity<inch_length>(iml2) << std::endl
                  << iml3 << " = " << quantity<inch_length>(iml3) << std::endl
                  << iml4 << " = " << quantity<inch_length>(iml4) << std::endl
                  << iml5 << " = " << quantity<inch_length>(iml5) << std::endl
                  << iml6 << " = " << quantity<inch_length>(iml6) << std::endl
                  << iml7 << " = " << quantity<inch_length>(iml7) << std::endl
                  << std::endl;

        std::cout << iml1 << " = " << quantity<foot_length>(iml1) << std::endl
                  << iml2 << " = " << quantity<foot_length>(iml2) << std::endl
                  << iml3 << " = " << quantity<foot_length>(iml3) << std::endl
                  << iml4 << " = " << quantity<foot_length>(iml4) << std::endl
                  << iml5 << " = " << quantity<foot_length>(iml5) << std::endl
                  << iml6 << " = " << quantity<foot_length>(iml6) << std::endl