id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
9991	WConversion issue in json_parser_write.hpp	abhi.california@…	Sebastian Redl	"File Name:
1_54_0/boost/property_tree/detail/json_parser_write.hpp

There is a severe problem with the -Wconversion issue in the json_parser_write.hpp

Problematic code:
           else
            {
                const char *hexdigits = ""0123456789ABCDEF"";
                typedef typename make_unsigned<Ch>::type UCh;
                unsigned long u = (std::min)(static_cast<unsigned long>(
                                                 static_cast<UCh>(*b)),
                                             0xFFFFul);

               ''' int d1 = u / 4096; u -= d1 * 4096;
                int d2 = u / 256; u -= d2 * 256;
                int d3 = u / 16; u -= d3 * 16;
                int d4 = u;''' 

                result += Ch('\\'); result += Ch('u');
                result += Ch(hexdigits[d1]); result += Ch(hexdigits[d2]);
                result += Ch(hexdigits[d3]); result += Ch(hexdigits[d4]);
            }

Either we need to do explicit static cast to suppress the Conversion Warning. 
When we turn on the -Wconversion as well as -Werror both together, which is good practice for production ready code. compiler Just dont allow this to compile. 

the above need to be fixed."	Bugs	assigned	To Be Determined	property_tree	Boost 1.54.0	Problem		JSON property tree