Function submit_task

include/BS_thread_pool.hpp:1939–1944

     */
    template <typename F, typename R = std::invoke_result_t<std::decay_t<F>>>
    [[nodiscard]] std::future<R> submit_task(F&& task, const priority_t priority = 0)
    {
        task_and_future<R> ft(std::forward<F>(task));
        detach_task(std::move(ft.task), priority);
        return std::move(ft.future);
    }

    /**
     * @brief Unpause the pool. The workers will resume retrieving new tasks out of the queue. Only enabled if the flag `BS::tp::pause` is enabled in the template parameter.