id	summary	reporter	owner	description	type	status	milestone	component	version	severity	resolution	keywords	cc
11800	Boost Convert fails on user defined types with no value_type	Brad Anderson <eco@…>	Vladimir Batov	"Both the stream and strtol converters seem to make use of is_string which appears to not be using SFINAE correctly resulting in a compilation error ('value_type' : is not a member of 'X').

In 1.59.0 the offending line is boost/convert/detail/is_string.hpp:26.

{{{
        template<typename T> struct is_string<T, /*is_range_class=*/true>
        {
            static bool const value = cnv::is_char<typename T::value_type>::value;
        };
}}}"	Bugs	closed	To Be Determined	convert	Boost 1.59.0	Problem	fixed