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      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 
     21 int main()
     22 {
     23     assert(std::thread::hardware_concurrency() > 0);
     24 }
     25