-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Small typo: Markus Bernhardt schrieb:
Hi Anders,
I had exactly the same problem three days ago. I have found no way to prevent the compiler from instantiating some templates with serialization code in multiple DLLs. My solution was to switch from intrusive to non intrusive serialization and putting all serialization binaries in a third DLL.
How it works (for me):
1. Rename all template <class Archive> void serialize(Archive& ar, const unsigned int version) { ... } to template <class Archive> void my_serialize(Archive& ar, const unsigned int version) { ... } and make it public.
2. Remove all serialization headers and macros from the existing code.
3. Create a new DLL.
4. For every serializable class I have there a .cpp file which looks like:
#include
#include #include #include #include "abstracts.h" namespace boost { namespace serialization { template <class Archive> void serialize(Archive& ar, MyClass& obj, const unsigned int version) { obj.template bm_serialize<Archive>(ar, version);
obj.template my_serialize<Archive>(ar, version); // Correct
} } }
BOOST_CLASS_EXPORT(MyClass); BOOST_SHARED_POINTER_EXPORT(MyClass);
5. One additional file abstracts.h which looks like:
#ifndef BM_SERIALITATION_ABSTRACTS_H_ #define BM_SERIALITATION_ABSTRACTS_H_
BOOST_IS_ABSTRACT(MyBaseClass)
#endif
#########################
I'm not sure this is the preferred way to handle things, but at least it works for me.
Best regards, Markus
Anders Wang Kristensen schrieb:
Hi,
I'm trying to serialize a class using two functions located in different DLLs.
I can serialize fine by calling one function, but when I call the second it triggers an assertion in extended_type_info.cpp:
// make sure that attempt at registration is done only once assert(lookup(eti) == m_self->m_map.end());
Apparently the class is registered twice, but how do I avoid that?
-- Anders
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