Method valid

include/BS_thread_pool.hpp:509–515

* @brief Check if all the futures stored in this `BS::multi_future` are valid. * * @return `true` if all futures are valid, `false` if at least one of the futures is not valid. */

     * @return `true` if all futures are valid, `false` if at least one of the futures is not valid.
     */
    [[nodiscard]] bool valid() const noexcept
    {
        bool is_valid = true;
        for (const std::future<T>& future : *this)
            is_valid = is_valid && future.valid();
        return is_valid;
    }

    /**
     * @brief Wait for all the futures stored in this `BS::multi_future`.