1// Copyright 2022 Peter Dimov.
2// Distributed under the Boost Software License, Version 1.0.
3// http://www.boost.org/LICENSE_1_0.txt
4
5#include <boost/system/error_code.hpp>
6#include <boost/core/lightweight_test.hpp>
7#include <sstream>
8
9namespace sys = boost::system;
10
11int main()
12{
13 {
14 std::wostringstream os;
15 os << sys::error_code();
16
17 BOOST_TEST( os.str() == L"system:0" );
18 }
19
20 return boost::report_errors();
21}
22

source code of boost/libs/system/test/ec_wstream_test.cpp