1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8 //
9 // UNSUPPORTED: libcpp-has-no-threads, libcpp-has-thread-api-external
10 
11 // XFAIL: windows
12 
13 // <thread>
14 
15 // class thread
16 
17 // native_handle_type native_handle();
18 
19 #include <thread>
20 #include <new>
21 #include <cstdlib>
22 #include <cassert>
23 
24 #include "test_macros.h"
25 
26 class G
27 {
28     int alive_;
29 public:
30     static int n_alive;
31     static bool op_run;
32 
G()33     G() : alive_(1) {++n_alive;}
G(const G & g)34     G(const G& g) : alive_(g.alive_) {++n_alive;}
~G()35     ~G() {alive_ = 0; --n_alive;}
36 
operator ()()37     void operator()()
38     {
39         assert(alive_ == 1);
40         assert(n_alive >= 1);
41         op_run = true;
42     }
43 };
44 
45 int G::n_alive = 0;
46 bool G::op_run = false;
47 
main(int,char **)48 int main(int, char**)
49 {
50     {
51         G g;
52         std::thread t0(g);
53         pthread_t pid = t0.native_handle();
54         assert(pid != 0);
55         t0.join();
56     }
57 
58   return 0;
59 }
60