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Quiz · Multithreading: An Overview · lesson 9 of 10

Quiz — when std::async runs

When and in which thread does answer run in this program?

C++
#include <future>
#include <iostream>

int answer() {
    return 42;
}

int main() {
    std::future<int> f = std::async(std::launch::deferred, answer);
    std::cout << f.get() << '\n';
}