libcxx/test/std/input.output/iostream.objects/wide.stream.objects/wcerr-wide-mode.sh.cpp

   1 //===----------------------------------------------------------------------===//
   2 //
   3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
   4 // See https://llvm.org/LICENSE.txt for license information.
   5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
   6 //
   7 //===----------------------------------------------------------------------===//
   8
   9 // <iostream>
  10
  11 // wostream wcerr;
  12
  13 // UNSUPPORTED: no-wide-characters
  14 // REQUIRES: target={{.+}}-windows-{{.+}}
  15
  16 // FILE_DEPENDENCIES: test.dat
  17 // RUN: %{build}
  18 // RUN: %{exec} %t.exe 2> %t.actual
  19 // RUN: diff test.dat %t.actual
  20
  21 // Check that wcerr works, preserving the unicode characters, after switching
  22 // stderr to wide mode.
  23
  24 #include <iostream>
  25 #include <io.h>
  26 #include <fcntl.h>
  27
  28 int main(int, char**) {
  29     _setmode(_fileno(stderr), _O_WTEXT);
  30     std::wcerr << L"1234\u20ac\u00e5\u00e4\u00f6";
  31     return 0;
  32 }