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 <ramey@rrsd.com> wrote:

Try map<string, /* const */ Protocol *> _table;

Robert Ramey

Marco Canini wrote:

...

...

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<string, const Protocol *> _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<boost::archive::text_iarchive, const Protocol*>::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<T, Archive>::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

...

_______________________________________________ Boost-users mailing list Boost-users@lists.boost.org http://lists.boost.org/mailman/listinfo.cgi/boost-users

-- Marco Canini

Unfortunately using 1.40 doesn't fix my problem. Can somebody please tell me if the test code I attached in my first post could ever work? Thanks! On Mon, 31 Aug 2009 21:30:33 +0200, Stefan Strasser <strasser@uni-bremen.de> wrote:

Am Monday 31 August 2009 17:43:31 schrieb Marco Canini:

...

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.

either: http://www.boost.org/doc/libs/1_40_0/libs/serialization/doc/serialization.ht...

or a free function that constructs the type, like you do with references: http://www.boost.org/doc/libs/1_40_0/libs/serialization/doc/serialization.ht...

-- Marco Canini