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 // <system_error>
10 
11 // class error_code
12 
13 // template <class charT, class traits>
14 //   basic_ostream<charT,traits>&
15 //   operator<<(basic_ostream<charT,traits>& os, const error_code& ec);
16 
17 #include <system_error>
18 #include <sstream>
19 #include <cassert>
20 
21 #include "test_macros.h"
22 
23 int main(int, char**)
24 {
25     std::ostringstream out;
26     out << std::error_code(std::io_errc::stream);
27     assert(out.str() == "iostream:1");
28 
29   return 0;
30 }
31