// from: http://solarianprogrammer.com/2011/12/16/cpp-11-thread-tutorial/
#include <iostream>
#include <thread>

static const int num_threads = 8;

void call_from_thread(int tid) {
    std::cout << "Launched by thread " << tid << std::endl;
    double x = 1.0;
    for(int i = 0; i < 2E9; i++) {
        x /= 2;
    }
}

int main() {
    std::thread t[num_threads];

    for (int i = 0; i < num_threads; ++i) {
        t[i] = std::thread(call_from_thread, i);
    }

    std::cout << "Launched from the main\n";

    for (int i = 0; i < num_threads; ++i) {
        t[i].join();
    }

    return 0;
}