boost serialization save pointer and value

Question

I would like to serialize an object via a boost::shared_ptr. My application has a main loop where it modifies the object and then serializes it, each cycle. The result is that the value (i.e. member fields) of the object are saved only once, which is not what I want -- I would like to save both object tree structure and object member fields. What is the recommended way to achieve this?

boost::serialization is very well documented from what I remember. Please go and read the docs — Tony The Lion, Jun 01 '14 at 09:43

score 1 · Answer 1 · edited May 23 '17 at 12:27

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You need to do one of he following:

disable object tracking (read Class Serialization Traits -> Object Tracking), otherwise objects with equivalent pointers will be assumed to have the same identity, and only be included once per archive
serialize a value, instead of by pointer (this could be problematic for polymorphic types)
start a new archive each time (warning: this can have considerable overhead: Boost C++ Serialization overhead)

edited May 23 '17 at 12:27

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answered Jun 01 '14 at 12:54

sehe

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Why the need to start a new archive though? – dkrikun Jun 01 '14 at 12:57
@dkrikun You can pick one fo the approaches. See also **[Boost::Serialization: How to avoid the double-saving of a pointer?](http://stackoverflow.com/a/23458397/85371)** (around the _"But hey! Isn't Boost Serialization to do object tracking when serializing pointers?"_ remark) – sehe Jun 01 '14 at 12:57

boost serialization save pointer and value

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