Re: [Boost-users] Serialization of template classes via base

From: Robert Ramey (ramey_at_[hidden])
Date: 2005-09-11 23:42:34

Bruno Martínez wrote:
>> so one could say  BOOST_CLASS_EXPORT_GUID(T, name_from_type<T>)
>
> I don't understand how BOOST_CLASS_EXPORT_GUID would work that way.
> There has to be a call to this macro for each type, and all calls
> have to be at global scope.
>

Actually I envisioned that the text "name_from_type..." would be passed into 
the code and be invoked at each place - but maybe that was overly 
optimistic.  I would like to see name from type be orthogonal to export.hpp 
which due to a number off issues (template instantitiation and linker 
behavior and...) is pretty complex.

You might try to make something that looks like:

BOOST_TEMPLATE_EXPORT(template name)

But I haven't thought about it much after I considered it had a lot of 
issues.

BTW - don't forget to consider namespaces of types and the fact that a 
header module might be included in different header modules in different 
namespaces.  Or maybe not.  I believe that this problem is not really 
solvable in a definitive way at this time.  But good luck.

Robert Ramey