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 // <thread>
11 
12 // class thread
13 
14 // unsigned hardware_concurrency();
15 
16 #include <thread>
17 #include <cassert>
18 
main()19 int main()
20 {
21     assert(std::thread::hardware_concurrency() > 0);
22 }
23