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
15
16 // unsigned hardware_concurrency();
17
18 #include <thread>
19 #include <cassert>
20
main()21 int main()
22 {
23 assert(std::thread::hardware_concurrency() > 0);
24 }
25