Maxime van Noppen wrote:

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Hi,

I'm trying to create my own archive type and I'm struggling with this error message :

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$ g++ test.cc -lboost_serialization /tmp/cc5aW7rV.o: In function `boost::archive::detail::pointer_oserializer::pointer_oserializer()': test.cc:(.text._ZN5boost7archive6detail19pointer_oserializerI12sql_oarchiveN8internal4unitEEC2Ev[_ZN5boost7archive6detail19pointer_oserializerI12sql_oarchiveN8internal4unitEEC5Ev]+0x4f): undefined reference to `boost::archive::detail::archive_serializer_map::insert(boost::archive::detail::basic_serializer const*)' /tmp/cc5aW7rV.o: In function `boost::archive::detail::pointer_oserializer::~pointer_oserializer()': test.cc:(.text._ZN5boost7archive6detail19pointer_oserializerI12sql_oarchiveN8internal4unitEED2Ev[_ZN5boost7archive6detail19pointer_oserializerI12sql_oarchiveN8internal4unitEED5Ev]+0x24): undefined reference to `boost::archive::detail::archive_serializer_map::erase(boost::archive::detail::basic_serializer const*)'

I can't find the relevant part of the documentation which talks about it. Adding this piece of code makes the code compile but it doesn't work:

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namespace boost { namespace archive { namespace detail { template <> bool archive_serializer_map::insert(boost::archive::detail::basic_serializer const*) { // ?? }

template <> void archive_serializer_map::erase(boost::archive::detail::basic_serializer const*) { // ?? } } } }

I'm using boost 1.43 on g++ 4.5 on linux 64bits. The code is attached.

What am I missing ?

Take a look at text_iarchive.cpp. In particular: template class detail::archive_serializer_map; template class basic_text_iarchive ; template class text_iarchive_impl ; template class detail::archive_serializer_map; template class basic_text_iarchive ; template class text_iarchive_impl ; Note the explicit instantiation of ... Robert Ramey

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Thanks,

-- Maxime

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