llvm-project/libcxx/test/std/diagnostics/syserr/syserr.errcode/syserr.errcode.nonmembers/stream_inserter.pass.cpp

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752 B
C++

//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <system_error>
// class error_code
// template <class charT, class traits>
// basic_ostream<charT,traits>&
// operator<<(basic_ostream<charT,traits>& os, const error_code& ec);
#include <system_error>
#include <sstream>
#include <cassert>
int main()
{
std::ostringstream out;
out << std::error_code(std::io_errc::stream);
assert(out.str() == "iostream:1");
}