- const QSet<NetworkId> &networkIds();
- const QSet<BufferId> &bufferIds();
- const QSet<BufferId> &removedBufferIds();
- const QSet<BufferId> &tempRemovedBufferIds();
+ const QSet<NetworkId>& networkIds();
+ const QSet<BufferId>& bufferIds();
+ const QSet<BufferId>& removedBufferIds();
+ const QSet<BufferId>& tempRemovedBufferIds();