dynamic_cast returns NULL but it shouldn't

Question

I\'m having the following class hierarchy:

class IStorage {
    [...]
}
Q_DECLARE_INTERFACE(IStorage, \"ch.gorrion.smssender.IStorage/1.0\")


class ISQLiteS         


        

Answer 1

Basically, RTTI is unreliable across module boundaries. Different compilers have different behaviors here; you'll have to research how your compiler/version acts in this case. Of course, if you have a different compiler/version for the main app and plugin, it clearly has no chance of working.

Use static_cast as a work around.