id summary reporter owner description type status milestone component version severity resolution keywords cc 11651 boost::to_upper and boost::to_lower damages non ascii-charasters in std::u32string anonymous Marshall Clow "code to reproduce: std::u32string u32str = U""Проверка АаАа abcd""; boost::to_upper(u32str); // u32str contains ""@>25@:0 00 ABCD"" after proper upper string is ""ПРОВЕРКА АААА ABCD"" Visual Studio 2015" Bugs new To Be Determined string_algo Boost 1.59.0 Problem string algorithms to_upper to_lower