Re: [Boost-users] [Units] Name a unit for output

Subject: Re: [Boost-users] [Units] Name a unit for output
From: Steven Watanabe (watanabesj_at_[hidden])
Date: 2017-12-20 04:04:59

AMDG

On 12/19/2017 05:38 PM, Santiago Ospina via Boost-users wrote:
> I would like to know if there is an equivalent for giving a name and a symbol given a unit in boost::units (maybe scaled from another one).
> 
> I know the example of naming base units, however, it would imply I'd have to create a system and a conversion for every unit I want to implement.
> 
> I tried to write it directly from the scaled version, like this:
> 
>   template<>                                           
>   struct scale_minute<60, static_rational<1> >                      
>   {                                                    
>       static const long base = 60;                  
>       typedef Detail::static_rational<1> exponent;                      
>       typedef double value_type;                       
>       static value_type value()   { return(60); }    
>       static std::string name()   { return("minute"); }  
>       static std::string symbol() { return("m"); }
>   };
> 
> however, it is adding my scaled name plus my base name (say the base name is “s” which stands for seconds, then it would print “m” + "s”).
> 
> Any idea how to overcome with that?
> 

try:
#include <boost/units/base_units/metric/minute.hpp>
using minutes = boost::units::metric::minute_base_unit::unit_type;

You should be able to use the same method of specializing
base_unit_info.

In Christ,
Steven Watanabe