Is there a way to get information on a boost::flyweight internal container?

Question

Using boost::flyweight is supposed to help me save memory. I am looking for way to get a quantitative measurement on the effectiveness of the solution.

Is there a way to get the size() of the internal container? If its a hash based flyweight, is there a way to get info on bucket status? hash collisions, etc?

Any pointers will be appreciated.

Answer 1

Have a look at the source code of boost::flyweight::hashed_factory_class: you can just clone the code to derive your own user-defined factory and provide public (preferrable const) access to the internal container.