I suspect you didn't include which includes serialization code for shared_ptr. It also includes shared_ptr.hpp itself. This is similar to the way the headers are organized for all the stl collections. If you want to serialize the boost share_ptr be sure to read about in the docs as there are a few gotchas. Also note that there the "real soon to be released" boost 1.33 has a different shared_ptr and different serialization of the same. Good Luck. Robert Ramey boost@iyates.com wrote:

I was using my own home-grown one. I wrote it before I started using boost though. I decided to try it out with boost::shared_ptr and here is what I got:

c:\Boost\boost_1_32_0\boost\serialization\access.hpp(106): error C2039: 'serialize' : is not a member of 'boost::shared_ptr<T>'

I tried searching on boost shared_ptr serialize but came up empty. Any suggestions? Thanks.

----- Original Message ----- From: "Robert Ramey" To: boost-users@lists.boost.org Date: Tue, 5 Jul 2005 20:18:00 -0700 Subject: Re: [Boost-users] Serialization and null pointers

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boost@iyates.com wrote:

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Thanks. If I changed the order of the members being serialized it worked fine. Weird.

However, I am running into a problem. I am using reference counted Smart Pointers. If I serialize the reference counter, then when it is loaded it will likely contain too large of a reference count because there were more objects referencing the pointer when it was saved than when it was loaded. However, it works fine it just doesn't properly delete the objects because the reference count never reaches 0.

If I don't serialize the reference count then the objects try to delete themselves while boost is loading them from the file. I'm guessing because of the order everything happens, the final destination isn't increasing the reference count until after boost already dereferences it.

Any suggestions?

I'm not sure which reference counted Smart Pointer you're using. If you use the boost smart_ptr, its already has serializaiton done. If you want to add serialization to your own Smart Pointer, you can look at how it was done for the boost smart pointer - now there are two versions so you have lots of ideas available.

Robert Ramey

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