id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
9722	"Changeset 55698 Problem with ""base_unit_info<S>::name());"""	Eckhard Nees <eckhard.nees@…>	Matthias Schabel	"In the Changeset 55698 in Line 85 the
return(Scale::name() + S::name()); 
was changed to
return(Scale::name() + base_unit_info<S>::name());

Now I get the compiler-error
/opt/local/include/boost/units/scaled_base_unit.hpp:85:32: Implicit instantiation of undefined template 'boost::units::base_unit_info<boost::units::cgs::gram_base_unit>'

when I try to get the name of a scaled unit:
    boost::units::si::kilogram_base_unit kg;
    std::string strKg{kg.name()};

When I change line 85 back to the original version, the binding results and the output is correct.

The same is valid for line 81 ""symbol"".

Possible solution:
go back to the former version. Side effects?

or add in gram.hpp in line 36
    template<>
    struct base_unit_info<cgs::gram_base_unit> {
        static const char* name()   { return(""gram""); }
        static const char* symbol() { return(""g""); }
    };

but results in double definitions of name and symbol.
The same has to be repeated for the other base_units, e.g. centimeter_base_unit

"	Bugs	new	To Be Determined	units	Boost 1.55.0	Problem		base_unit_info name symbol	Steven Watanabe