[Boost-bugs] [Boost C++ Libraries] #12429: CGS unit of current is not well defined in reference ot Ampere

Subject: [Boost-bugs] [Boost C++ Libraries] #12429: CGS unit of current is not well defined in reference ot Ampere
From: Boost C++ Libraries (noreply_at_[hidden])
Date: 2016-09-01 20:36:24

#12429: CGS unit of current is not well defined in reference ot Ampere
------------------------------+-----------------------------
 Reporter:  alfredo.correa@…  |      Owner:  matthiasschabel
     Type:  Bugs              |     Status:  new
Milestone:  To Be Determined  |  Component:  units
  Version:  Boost 1.61.0      |   Severity:  Showstopper
 Keywords:                    |
------------------------------+-----------------------------
 1 biot (cgs unit of current) is converted to 0.1 Ampere. It should be 10
 Ampere.


 {{{
 #include <boost/units/systems/cgs/io.hpp>
 #include <boost/units/systems/si/io.hpp>
 #include <iostream>
 using std::cout;

 int main(){

         using namespace boost::units;

         cout << 1.*cgs::biot << " = " <<
 quantity<si::current>(1.*cgs::biot) << '\n'; // not ok! "1 Bi = 0.1 A"
         cout << 1.*cgs::centimeter << " = " <<
 quantity<si::length>(1.*cgs::centimeter) << '\n';
         cout << 1.*cgs::gram << " = " << quantity<si::mass>(1.*cgs::gram)
 << '\n';
 }

 }}}


 The solution is change -1 by 1 in "boost/units/base_units/cgs/biot.hpp"

 from

 {{{
 typedef scaled_base_unit<boost::units::si::ampere_base_unit, scale<10,
 static_rational<-1> > >

 }}}
 to


 {{{
 typedef scaled_base_unit<boost::units::si::ampere_base_unit, scale<10,
 static_rational<1> > >
 }}}

-- 
Ticket URL: <https://svn.boost.org/trac/boost/ticket/12429>
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