[Boost-users] Serialisation across libraries.

From: Hughes, James (jhughes_at_[hidden])
Date: 2007-05-08 07:16:36

Hello all,

I am a bit stumped by a problem I am seeing with serialisation, and
wondered whether it may be due to the way I sue some libraries.

I have two libraries, one which contains the main code that uses
serialisation, and another which contains some small classes used by the
main code.

The main code serialises a tree like data structure containing some
shared pointers, each node of the 'tree' contains member data, and its
one of these members that is causing a double free or corruption error
on loading. This particular member is a structure from the other
library. It contains a serialisation template in the class header which
appears to save correctly - the XML output all appears correct. However
on loading the double free error occurs.

I cannot see anything wrong with the code at all. The only thing I can
think of is that there are limitations in doing serialisation across the
library boundary. Perhaps I end up with two instantiations of the
template for serialisation? One in the main library, and one in the
small library? Am I clutching at straws? DO I somehow have to force the
instantiation of the serialisation for the class in the sub library to
be in there, rather than being created again in the main library?

Any thoughts?

James

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