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++98, c++03, c++11
11 
12 // This test requires the dylib support introduced in D68480
13 // XFAIL: with_system_cxx_lib=macosx10.15
14 // XFAIL: with_system_cxx_lib=macosx10.14
15 // XFAIL: with_system_cxx_lib=macosx10.13
16 // XFAIL: with_system_cxx_lib=macosx10.12
17 // XFAIL: with_system_cxx_lib=macosx10.11
18 // XFAIL: with_system_cxx_lib=macosx10.10
19 // XFAIL: with_system_cxx_lib=macosx10.9
20 
21 // <barrier>
22 
23 #include <barrier>
24 #include <thread>
25 #include <cassert>
26 
27 #include "test_macros.h"
28 
29 int main(int, char**)
30 {
31   int x = 0;
32   auto comp = [&]() { x += 1; };
33   std::barrier<decltype(comp)> b(2, comp);
34 
35   std::thread t([&](){
36       for(int i = 0; i < 10; ++i)
37         b.arrive_and_wait();
38   });
39 
40   for(int i = 0; i < 10; ++i)
41     b.arrive_and_wait();
42 
43   assert(x == 10);
44   t.join();
45   return 0;
46 }
47