id summary reporter owner description type status milestone component version severity resolution keywords cc 9389 boost::log operator<< (basic_formatting_ostream< CharT, TraitsT, AllocatorT >& strm, T const& value) pal666@… Andrey Semashev "i have a type, whose output operator takes non-const reference (operator<<(ostream&, T&)) it cannot be used with boost::log operator<< (basic_formatting_ostream< CharT, TraitsT, AllocatorT >& strm, T const& value) please consider removing const restriction" Bugs closed To Be Determined log Boost 1.55.0 Problem fixed