Re: [Boost-users] [serialization] loading a map having a const mappedvalue type

Thanks! I know that will work. My problem is that the program I'm applying boost to uses const and I'd rather not modify that. On Mon, 31 Aug 2009 18:31:31 +0200, Robert Ramey wrote:

Try map _table;

Robert Ramey

Marco Canini wrote:

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Hi all,

I'm unable to address this use case of the serialization library. I have a standard map in which the mapped value is const: map _table;

My serialize is very simple: ar & _table;

(the test case source code is attached)

However, this can't be compiled as I get many errors related to the loading code inside boost::serialization:

/usr/include/boost/archive/detail/iserializer.hpp:488: error: reinterpret_cast from type 'const Protocol**' to type 'void**' casts away constness

/usr/include/boost/archive/detail/iserializer.hpp:491: error: no matching function for call to 'boost::archive::detail::load_pointer_type::pointer_tweak(const boost::serialization::extended_type_info&, const Protocol*&, const Protocol&)'

/usr/include/boost/serialization/access.hpp:109: error: passing 'const Protocol' as 'this' argument of 'void Protocol::serialize(Archive&, unsigned int) [with Archive = boost::archive::text_iarchive]' discards qualifiers /usr/include/boost/archive/detail/iserializer.hpp: In member function 'void boost::archive::detail::pointer_iserializer::load_object_ptr(boost::archive::detail::basic_iarchive&, void*&, unsigned int) const [with T = const Protocol, Archive = boost::archive::text_iarchive]':

/usr/include/boost/archive/detail/iserializer.hpp:299: error: invalid conversion from 'const void*' to 'void*' /usr/include/boost/archive/detail/iserializer.hpp:307: error: invalid conversion from 'const void*' to 'void*' /usr/include/boost/archive/detail/iserializer.hpp:307: error: initializing argument 1 of 'void boost::archive::detail::basic_iarchive::next_object_pointer(void*)'

/usr/include/boost/serialization/access.hpp:123: error: invalid conversion from 'const void*' to 'void*' /usr/include/boost/serialization/access.hpp:123: error: initializing argument 2 of 'void* operator new(size_t, void*)' /usr/include/boost/serialization/access.hpp:123: error: no matching function for call to 'Protocol::Protocol()'

/usr/include/boost/archive/detail/iserializer.hpp:555: error: invalid application of 'sizeof' to incomplete type 'boost::STATIC_ASSERTION_FAILURE<false>' /usr/include/boost/archive/detail/iserializer.hpp:555: error: invalid application of 'sizeof' to incomplete type 'boost::STATIC_ASSERTION_FAILURE<false>'

Can somebody share his wisdom on this please? Thanks!

-- Marco Canini

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-- Marco Canini