id summary reporter owner description type status milestone component version severity resolution keywords cc 7435 Crash with format using UTF16 strings on MacOS X Franz Detro James E. King, III "Due to cross-platform issues with Microsoft Windows, we are using std::strings with unsigned shorts as UTF16 strings. We experience crashes when using boost::format in combination with these strings. Please find attach a simple fix which solves this issue for us. We are using this code since some years on Windows and Unix, too, without any negative side-effects. It would be great if you could double-check this change and commit it to future boost versions." Bugs closed format Boost 1.51.0 Problem fixed