1//===----------------------------------------------------------------------===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is dual licensed under the MIT and the University of Illinois Open
6// Source Licenses. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9//
10// UNSUPPORTED: libcpp-has-no-threads
11
12// <thread>
13
14// class thread::id
15
16// template<class charT, class traits>
17// basic_ostream<charT, traits>&
18// operator<<(basic_ostream<charT, traits>& out, thread::id id);
19
20#include <thread>
21#include <sstream>
22#include <cassert>
23
24int main()
25{
26    std::thread::id id0 = std::this_thread::get_id();
27    std::ostringstream os;
28    os << id0;
29}
30