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gcc TSAN fail
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| // Source: http://en.cppreference.com/w/cpp/thread/promise | |
| #include <future> | |
| #include <iostream> | |
| #include <numeric> | |
| #include <thread> | |
| #include <vector> | |
| void accumulate(std::vector<int>::iterator first, | |
| std::vector<int>::iterator last, | |
| std::promise<int> accumulate_promise) { | |
| int sum = std::accumulate(first, last, 0); | |
| accumulate_promise.set_value(sum); // Notify future | |
| } | |
| int main() { | |
| std::vector<int> numbers = {1, 2, 3, 4, 5, 6}; | |
| std::promise<int> accumulate_promise; | |
| std::future<int> accumulate_future = accumulate_promise.get_future(); | |
| std::thread work_thread(accumulate, numbers.begin(), numbers.end(), | |
| std::move(accumulate_promise)); | |
| accumulate_future.wait(); // wait for result | |
| std::cout << "result=" << accumulate_future.get() << '\n'; | |
| work_thread.join(); // wait for thread completion | |
| } |
Author
rettichschnidi
commented
Jan 20, 2016
Hello Reto, I'm seeing this same message from g++'s thread sanitizer. Have you been able to confirm that this is a false positive? Or if it's not, a workaround?
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