Class loop_task

include/BS_thread_pool.hpp:690–701

 */
template <typename T, typename F>
struct loop_task
{
    void operator()()
    {
        for (T i = start; i < end; ++i)
            (*loop_ptr)(i);
    }

    std::shared_ptr<std::decay_t<F>> loop_ptr;
    T start;
    T end;
}; // struct loop_task

/**
 * @brief A function object class used by `detach_sequence()` and `submit_sequence()` to execute a sequence function over a specified index.