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// XFAIL: LIBCXX-PICOLIBC-FIXME10 11// <iostream>12 13// ostream cerr;14 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::cerr << "1234";27 assert(std::cerr.flags() & std::ios_base::unitbuf);28 assert(std::cerr.tie() == &std::cout);29 return 0;30}31