[Boost-users] [Serialize] How to serialize a class with NO serializable data

Subject: [Boost-users] [Serialize] How to serialize a class with NO serializable data
From: Merrill Cornish (merrill.cornish_at_[hidden])
Date: 2014-12-24 16:36:34

I applied the PIMPL idiom to one of my larger classes, and it worked 
great.  The visible class records the API with public functions and NO 
data member except the pointer to the implementation class.  That 
pointer should not be serialized because it is created automatically 
when the visible class is instantiated.

However, if I put NO serialization code in the visible class, the 
visible class won't (as I understand it) be instantiated when the 
archive is loaded.  (I'm still far away from the point where I can try 
the archive load for myself.)

Should I define the serialize<> function for the class, but with an 
empty body, since there are no data members to be saved?