http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54527
Bug #: 54527 Summary: wcout breaks on win32 console Classification: Unclassified Product: gcc Version: unknown Status: UNCONFIRMED Severity: blocker Priority: P3 Component: c++ AssignedTo: unassig...@gcc.gnu.org ReportedBy: vurent...@gmail.com this case does not seem to work... the wide character does not print, nor does the "...done" part, this is only an issue for windows console... #include <windows.h> #include <iostream> int main(int argc, char** argv){ SetConsoleOutputCP(1200); wchar_t out[3]={0,0x000a,wchar_t()}; int characters = 1000; while(characters--){ out[0]=wchar_t(characters); std::wcout << out << "...done"; } } ...this case does work however, and where no glyph is found for the character the square replacement is used #include <windows.h> #include <iostream> int main(int argc, char** argv){ SetConsoleOutputCP(1200); wchar_t out[10]={0,0x000a,'.','.','.','d','o','n','e',wchar_t()}; int characters = 1000; HANDLE stdout = GetStdHandle(STD_OUTPUT_HANDLE); DWORD n; while(characters--){ out[0]=wchar_t(characters); WriteConsoleW( stdout, out, 10, &n, NULL ); } return 0; } i am not sure if this has anything to do with the default locale, or how to fix it without resorting to windows-specific api instead of std::wcout