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
10 // UNSUPPORTED: c++03, c++11
11 
12 // This test requires the dylib support introduced in D68480,
13 // which hasn't shipped yet.
14 // XFAIL: with_system_cxx_lib=macosx
15 // XFAIL: with_system_cxx_lib=macosx10.15
16 // XFAIL: with_system_cxx_lib=macosx10.14
17 // XFAIL: with_system_cxx_lib=macosx10.13
18 // XFAIL: with_system_cxx_lib=macosx10.12
19 // XFAIL: with_system_cxx_lib=macosx10.11
20 // XFAIL: with_system_cxx_lib=macosx10.10
21 // XFAIL: with_system_cxx_lib=macosx10.9
22 
23 // <barrier>
24 
25 #include <barrier>
26 #include <thread>
27 #include <cassert>
28 
29 #include "make_test_thread.h"
30 #include "test_macros.h"
31 
32 int main(int, char**)
33 {
34   std::barrier<> b(2);
35 
36   std::thread t = support::make_test_thread([&](){
37     b.arrive_and_drop();
38   });
39 
40   b.arrive_and_wait();
41   b.arrive_and_wait();
42   t.join();
43   return 0;
44 }
45