Question

I have a problem using C++11 futures. When I call wait() or get() on the future returned by std::async, the program receives SIGABRT signal thrown from the mutex header. What could be the problem? How to fix it?

I use g++ 4.6 on Linux. Pasting the following code to ideone.com causes the same problem.

#include <future>
#include <thread>

int calculate() {
    return 1;
}

int main() {
    auto result = std::async(calculate);
    result.wait();// <-- this aborts
    int value = result.get();// <-- or this aborts as well if previous line is commented out.

    return 0;
}

Answer 1

The problem may be solved by adding -pthread switch to g++.