Function main

example/timer.cpp:21–29

}

int main() {
    io_context ctx;
    ctx.co_spawn(cycle(1, "1 sec"));
    ctx.co_spawn(cycle_abs(1, "1 sec [abs]"));
    ctx.co_spawn(cycle(3, "\t3 sec"));
    ctx.start();
    ctx.join();
    return 0;
}