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, which shipped in 13 // macOS 11.0. 14 // XFAIL: use_system_cxx_lib && target={{.+}}-apple-macosx10.{{9|10|11|12|13|14|15}} 15 16 // TODO(ldionne): This test fails on Ubuntu Focal on our CI nodes (and only there), in 32 bit mode. 17 // UNSUPPORTED: linux && 32bits-on-64bits 18 19 // <barrier> 20 21 #include <barrier> 22 #include <thread> 23 #include <cassert> 24 25 #include "make_test_thread.h" 26 #include "test_macros.h" 27 28 int main(int, char**) 29 { 30 int x = 0; 31 auto comp = [&]() { x += 1; }; 32 std::barrier<decltype(comp)> b(2, comp); 33 34 std::thread t = support::make_test_thread([&](){ 35 for(int i = 0; i < 10; ++i) 36 b.arrive_and_wait(); 37 }); 38 39 for(int i = 0; i < 10; ++i) 40 b.arrive_and_wait(); 41 42 assert(x == 10); 43 t.join(); 44 return 0; 45 } 46