[cdt-dev] Indexer preferences for automatic update

["Tomljenovic Marko (CDG-SMT/EMT1)" <Marko.Tomljenovic@xxxxxxxxxxxx>]

Hello folks,
We are writing a plugin that is using the index content to a certain degree. For that to work properly the index should always be updated automatically.

In the preferences there are two switches for enabling the automatic update of the index:
1. Automatically update the index
2. Update index immediately after every file-save

Does anybody know what the exact difference between those two is?
We need this information to properly configure the project (so that our plugin can work properly)

Greets Marko