31 lines · 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-exception6//7//===----------------------------------------------------------------------===//8 9// <iostream>10 11// wostream wcerr;12 13// UNSUPPORTED: no-wide-characters14 15// RUN: %{build}16// RUN: %{exec} %t.exe 2> %t.actual17// RUN: echo -n 1234 > %t.expected18// RUN: diff %t.expected %t.actual19 20#include <iostream>21#include <cassert>22 23#include "test_macros.h"24 25int main(int, char**) {26 std::wcerr << L"1234";27 assert(std::wcerr.flags() & std::ios_base::unitbuf);28 assert(std::wcerr.tie() == &std::wcout);29 return 0;30}31