Tobias Combe wrote:

Hello

I read the documention and some prior postings to related topics. But none of the proposed solutions seems to work for me.

My problem:

I have an abstarct base class(with pure vitual function) and several derived from that. All are written in the same source/header -file. I want to serialize an object via a pointer to the base-class. When i use "ar.register<derived>();" in the template of the base-class to register the derived classes, i get a syntax error.

what syntax error do you get? conforming compilers can't compile ar.register<derived>() but need ar.template register<derived>() (or something like that). To avoid have to remember this I use the following idiot proof syntax: ar.register(static_cast(0))

When i export them with "BOOST_CLASS_EXPORT(derived);" or BOOST_CLASS_EXPORT_GUID(derived,"derived") it doesn't work (i think because they are all in the same file).

In order for BOOST_CLASS_EXPORT to function - it has to follow the the boost/archive/... declarations.

I'm also using "BOOST_IS_ABSTRACT(base);"

and...?

When i comment "oa << object;" ervything compiles fine. Uncommented i get a: boost/archive/detail/oserializer.hpp:567: error: incomplete type ` boost::STATIC_ASSERTION_FAILURE<false>' does not have member `value' error...

This is an entirely separate issue. Check the comments at oserializer.hpp 567 and the documentation rationale for information on this topic. Robert Ramey