| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | // |
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| 9 | // UNSUPPORTED: no-threads |
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| 10 | // UNSUPPORTED: c++03, c++11 |
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| 11 | |
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| 12 | // Until we drop support for the synchronization library in C++11/14/17 |
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| 13 | // ADDITIONAL_COMPILE_FLAGS: -D_LIBCPP_DISABLE_DEPRECATION_WARNINGS |
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| 14 | |
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| 15 | // XFAIL: availability-synchronization_library-missing |
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| 16 | |
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| 17 | // <barrier> |
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| 18 | |
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| 19 | #include <barrier> |
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| 20 | #include <thread> |
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| 21 | #include <cassert> |
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| 22 | |
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| 23 | #include "make_test_thread.h" |
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| 24 | #include "test_macros.h" |
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| 25 | |
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| 26 | int main(int, char**) |
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| 27 | { |
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| 28 | int x = 0; |
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| 29 | auto comp = [&]() noexcept { x += 1; }; |
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| 30 | std::barrier<decltype(comp)> b(2, comp); |
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| 31 | |
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| 32 | std::thread t = support::make_test_thread([&](){ |
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| 33 | for(int i = 0; i < 10; ++i) |
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| 34 | b.arrive_and_wait(); |
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| 35 | }); |
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| 36 | |
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| 37 | for(int i = 0; i < 10; ++i) |
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| 38 | b.arrive_and_wait(); |
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| 39 | |
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| 40 | assert(x == 10); |
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| 41 | t.join(); |
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| 42 | return 0; |
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| 43 | } |
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| 44 | |
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