问错误:静态断言失败: std::thread参数[...]但是参数的数量是正确的

EN

#include <atomic>
#include <thread>
#include <vector>

int num_of_threads = 4;

// Simple function for incrementing an atomic int
void work(std::atomic<int>& a) {
    for (int i = 0; i < 100000; i++) {
        a++;
    }
}

void test() {
    std::atomic<int> a;
    a = 0;

    std::vector<std::thread> threads;
    threads.reserve(num_of_threads);

    for (size_t i = 0; i < num_of_threads; i++) {
        threads.emplace_back(work, a); //<- here is the issue
    }

    for (auto& thread : threads) {
        thread.join();
    }
}

int main() {
    test();
}

/usr/include/c++/10.2.0/thread:136:44: error: static assertion failed: std::thread arguments must be invocable after conversion to rvalues
136 |           typename decay<_Args>::type...>::value,