Re: [Boost-users] [Serialization, XML] - how to get info "where am i?" in serialization helper (encoding is not recursive)?

From: Gary Granger (granger_at_[hidden])
Date: 2007-04-24 14:02:16

Hi Frank,

You're very welcome, I'm glad it helps.

The defines are for exports of polymorphic derived types through base
pointers.  Here are the docs on exporting:

http://www.boost.org/libs/serialization/doc/serialization.html#registration

The export defines in boost/serialization/export.hpp use a set of known
archive types defined in boost/archive/detail/known_archive_types.hpp,
so the defines I added are supposed to include my custom archive in that
list of known archive types.

I finally found the place in the boost documentation where I learned
about the custom archive defines in the first place:

http://www.boost.org/libs/serialization/doc/archive_reference.html#implementation

My code does not build without the defines, as I use the export defines
to register polymorphic types in lots of places, and so that I don't
have to include the template implementations everywhere.  Also, it seems
more correct and complete to define them, so I'm trying to be safe and
avoid any erratic or unexpected behavior.  I have had some bad
experiences with the serialization library and things like header order
causing unexplainable errors.  I don't yet understand all the magic
behind it. :)

Hope that helps,
gary

Frank Bergemann wrote:
>
>  Just a final question:
>  Could you tell me, what these defines are about?
>  I didn't adopt them and the modules seems to be ok without.
>
>  >
>  > #define BOOST_ARCHIVE_CUSTOM_IARCHIVE_TYPES datastore::ConfigIArchive
>  > #define BOOST_ARCHIVE_CUSTOM_OARCHIVE_TYPES datastore::ConfigOArchive
>  >