fix Warning

qt6-after/qt6-migrated-legatus/TetraIF/PrtCnv/PrtCnvBroadcastMgr.cpp

@@ -13,6 +13,7 @@
 
 #include "PrtCnvBroadcastMgr.hpp"
 #include <utility>
+#include <iterator>
 #include "PrtCnvDbThread.hpp"
 #include <CoPrtCnv/CoPrtCnvRadioTelegram.hpp>
 #include <CoPrtCnv/CoPrtCnvHexDumpHelper.hpp>
@@ -483,7 +484,7 @@ std::shared_ptr<N_CoPrtCnv::CoPrtCnvRadioTelegram> PrtCnvBroadcastMgr::createAcc
   const int idsToSendNow = (curIdStart + maxIdsPerTelegram <= completeTelegrams ? maxIdsPerTelegram : completeTelegrams % maxIdsPerTelegram);
   INFO_LOG(m_loggerBcRequest) << telId << ": creating accuTelegram from index " << curIdStart << ", count: " << idsToSendNow;
 
-  itStart += curIdStart;
+  std::advance(itStart, curIdStart);
 
   
   auto tele(std::make_shared<N_CoPrtCnv::CoPrtCnvRadioTelegram>(telId, 3 + 2 + sizeOfSumField + sizeof(uint16_t) * idsToSendNow, 0));