libcxx/test/std/input.output/iostream.objects/wide.stream.objects/wcin-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 // wistream wcin;
  12
  13 // UNSUPPORTED: no-wide-characters
  14 // REQUIRES: target={{.+}}-windows-{{.+}}
  15
  16 // FILE_DEPENDENCIES: test.dat
  17 // RUN: %{build}
  18 // RUN: cat test.dat | %{exec} %t.exe
  19
  20 // Check that wcin works, preserving the unicode characters, after switching
  21 // stdin to wide mode.
  22
  23 #include <iostream>
  24 #include <cassert>
  25 #include <io.h>
  26 #include <fcntl.h>
  27
  28 int main(int, char**) {
  29     _setmode(_fileno(stdin), _O_WTEXT);
  30     std::wstring str;
  31     std::wcin >> str;
  32     assert(str == L"1234\u20ac\u00e5\u00e4\u00f6");
  33     return 0;
  34 }