The syntax might seem strange to you, but this is pretty slick:

    bool batch_failed = std::any_of(
        jobs.begin(), jobs.end(),
        [](const auto & job) { return job.failed(); }
    );

In C++03-plus-auto, you'd have to define an helper function or class:

    bool isJobFailed(const Job& job) {
        return job.failed();
    }

And then use find_if, I guess:

    auto last = jobs.end();
    auto iter = std::find_if(
        jobs.begin(), jobs.end(),
        isJobFailed
    );
    bool batch_failed = (iter == last);