refactor

repertory/librepertory/include/events/t_event_system.hpp

@@ -164,7 +164,8 @@ private:
     event_notify_.notify_all();
     lock.unlock();
 
-    for (auto retry{0U}; size > max_queue_size && retry < max_queue_retry &&
+    for (std::uint8_t retry{0U};
+         size > max_queue_size && retry < max_queue_retry &&
          not get_stop_requested();
          ++retry) {
       lock.lock();