Support C++17 fallthrough attribute

Replaces our mix of comments for annotating intended absence of break
in switches with the C++17 attribute [[fallthrough]], or its earlier
a clang extension counterpart.

Change-Id: I4b2d0b9b5e4425819c7f1bf01608093c536b6d14
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>

1 files changed, 2 insertions, 2 deletions

diff --git a/src/plugins/bearer/qnetworksession_impl.cpp b/src/plugins/bearer/qnetworksession_impl.cpp
index 426cca139d..85942b56f1 100644
--- a/src/plugins/bearer/qnetworksession_impl.cpp
+++ b/src/plugins/bearer/qnetworksession_impl.cpp
@@ -111,10 +111,10 @@ void QNetworkSessionPrivateImpl::syncStateWithInterface()
     case QNetworkConfiguration::ServiceNetwork:
         serviceConfig = publicConfig;
         // Defer setting engine and signals until open().
-        // fall through
+        Q_FALLTHROUGH();
     case QNetworkConfiguration::UserChoice:
         // Defer setting serviceConfig and activeConfig until open().
-        // fall through
+        Q_FALLTHROUGH();
     default:
         engine = 0;
     }