Re: [Boost-users] [serialization] Reading back old archives

David Raulo wrote:

Here you suggested using the function get_library_version() in the

following way:

[...]

I've addressed this in the trunk and merged to release. I took special care to address situations such as your's. BUT... , I really haven't a good way to test this. So I would be greatful if you could download the lastest release version and verify that this works as I believe it should. If not, we should be able to fix it.

Unfortunately it does not work. The serialization library throws an exception before reaching my serialize() method. This happens at the following XML line: <MyClass class_id="11" tracking_level="1" version="20090123" object_id="_11">

Here is the relevant part of the backtrace:

#8 0x001df891 in boost::serialization::throw_exceptionboost::archive::archive_exception (e=@0xbfffe2d0) at throw_exception.hpp:36 #9 0x001a3cee in boost::archive::detail::iserializer::load_object_data (this=0xbea698, ar=@0xbffff284, x=0x2a19770, file_version=36107) at iserializer.hpp:173

Here you can see that the original version 20090123 got truncated to 36107 == 20090123 & 65535. This in itself might be a bug, I'm not sure.

I can't see this. But I do see how this assertion would be tripped. If you comment out this assertion does this make it work? Robert Ramey