Re: [Boost-users] serialization problems (undefined reference -boost::archive::detail::archive_pointer_oserializer<...>)

16 Sep 2008

      Thanks Matthias, I now have an archive which works with shared_ptrs!

In my header I added:
#include 
#include 

, and derived my iarchive/oarchive classes from detail::shared_ptr_helper.

Then, in the cpp, I added:
#include 
#include 

, and
namespace boost { namespace archive {
    template class detail::archive_pointer_iserializer ;
    template class detail::archive_pointer_oserializer ;
}}

I guess the boost docs threw me off in this case as they have an example of an archive implementation, however no mention is made of shared_ptr serialization as a special case... I didn't think I had to do anything specific in my implementation, and indeed did not even know what an .ipp file is for...

thanks muchly
A
...
From: troyer@phys.ethz.ch
To: boost-users@lists.boost.org
Date: Tue, 16 Sep 2008 13:15:59 +0200
Subject: Re: [Boost-users] serialization problems (undefined	reference	-boost::archive::detail::archive_pointer_oserializer<...>)
Have you looked at the source files (the *.cpp files ) of the  
archives: in the archive source files you have to
#include 
or
#include 
Matthias
On Sep 16, 2008, at 11:31 AM, Allan Johns wrote:
...
Hi again,
No joy so far. Have added these headers to my archive:
#include 
#include 
and my archive now derives like so:
class boost_iarchive: public  
detail::common_iarchive, public  
detail::shared_ptr_helper
I still get the same undefined reference :/
...
To: boost-users@lists.boost.org
From: ramey@rrsd.com
Date: Mon, 15 Sep 2008 08:39:09 -0800
Subject: Re: [Boost-users] serialization problems (undefined  
reference	-boost::archive::detail::archive_pointer_oserializer<...>)
Good point. Note that the archives included include a  
"shared_ptr_helper"
just to support shared_ptr.
Robert Ramey
Matthias Troyer wrote:
...
On Sep 15, 2008, at 11:18 AM, Allan Johns wrote:
...
Hi,
I've written my own archive, which works fine until I try
serialising a boost::shared_ptr<X>, in which case I get:
undefined reference to
`
boost
...
> archive
> detail
> archive_pointer_oserializer
boost::archive::boost_oarchive::~archive_pointer_oserializer().
(boost::archive::boost_oarchive is my archive class, in case this
causes confusion).
I'm on gcc4.1.2, ceontos4 x86_64. I'm linking to
libboost_serialization-gcc41-mt-1_35.so also. I've hit a bit of a
brick wall here so any help would be greatly appreciated. I've
searched around but can't seem to find any relevant posts on this
subject.
cheers
A
Do you use your own archive class? If so, please look at the
serialization source files to see how to compile the sorces for  
your
archive and which additional headers your archive source files  
need to
include.
Matthias
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