Re: [Boost-users] Serialization of a unordered_map

Subject: Re: [Boost-users] Serialization of a unordered_map
From: Jose (jmalv04_at_[hidden])
Date: 2010-02-08 09:45:37

Hi,

Does your code work with latest Boost ?

regards
jose

On Wed, Sep 2, 2009 at 2:17 PM, Basti Korf <teddy-sk_at_[hidden]> wrote:
> Hallo,
>
> I just wondered, why there is no possibility to serialize a unordered map. Since the STL map is serialized, i take the file for it and changed all maps to boost::unordered_map (multimap).
> Or is there a better way, i just did not see?
>
>
>
> Here is the code:
>
> #ifndef  BOOST_SERIALIZATION_UNORDEREDMAP_HPP
> #define BOOST_SERIALIZATION_UNORDEREDMAP_HPP
>
> // MS compatible compilers support #pragma once
> #if defined(_MSC_VER) && (_MSC_VER >= 1020)
> # pragma once
> #endif
>
> /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
> // serialization/map.hpp:
> // serialization for stl map templates
>
> // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
> // Use, modification and distribution is subject to the Boost Software
> // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
> // http://www.boost.org/LICENSE_1_0.txt)
>
> //  See http://www.boost.org for updates, documentation, and revision history.
>
> #include <boost/unordered_map.hpp>
>
> #include <boost/config.hpp>
>
> #include <boost/serialization/utility.hpp>
> #include <boost/serialization/collections_save_imp.hpp>
> #include <boost/serialization/collections_load_imp.hpp>
> #include <boost/serialization/split_free.hpp>
>
> namespace boost {
> namespace serialization {
>
> template<class Archive, class Type, class Key, class Compare, class Allocator >
> inline void save(
>    Archive & ar,
>    const boost::unordered_map<Key, Type, Compare, Allocator> &t,
>    const unsigned int /* file_version */
> ){
>    boost::serialization::stl::save_collection<
>        Archive,
>        boost::unordered_map<Key, Type, Compare, Allocator>
>    >(ar, t);
> }
>
> template<class Archive, class Type, class Key, class Compare, class Allocator >
> inline void load(
>    Archive & ar,
>    boost::unordered_map<Key, Type, Compare, Allocator> &t,
>    const unsigned int /* file_version */
> ){
>    boost::serialization::stl::load_collection<
>        Archive,
>        boost::unordered_map<Key, Type, Compare, Allocator>,
>        boost::serialization::stl::archive_input_map<
>            Archive, boost::unordered_map<Key, Type, Compare, Allocator> >,
>            boost::serialization::stl::no_reserve_imp<boost::unordered_map<
>                Key, Type, Compare, Allocator
>            >
>        >
>    >(ar, t);
> }
>
> // split non-intrusive serialization function member into separate
> // non intrusive save/load member functions
> template<class Archive, class Type, class Key, class Compare, class Allocator >
> inline void serialize(
>    Archive & ar,
>    boost::unordered_map<Key, Type, Compare, Allocator> &t,
>    const unsigned int file_version
> ){
>    boost::serialization::split_free(ar, t, file_version);
> }
>
> // multimap
> template<class Archive, class Type, class Key, class Compare, class Allocator >
> inline void save(
>    Archive & ar,
>    const boost::unordered_multimap<Key, Type, Compare, Allocator> &t,
>    const unsigned int /* file_version */
> ){
>    boost::serialization::stl::save_collection<
>        Archive,
>        boost::unordered_multimap<Key, Type, Compare, Allocator>
>    >(ar, t);
> }
>
> template<class Archive, class Type, class Key, class Compare, class Allocator >
> inline void load(
>    Archive & ar,
>    boost::unordered_multimap<Key, Type, Compare, Allocator> &t,
>    const unsigned int /* file_version */
> ){
>    boost::serialization::stl::load_collection<
>        Archive,
>        boost::unordered_multimap<Key, Type, Compare, Allocator>,
>        boost::serialization::stl::archive_input_multimap<
>            Archive, boost::unordered_multimap<Key, Type, Compare, Allocator>
>        >,
>        boost::serialization::stl::no_reserve_imp<
>        boost::unordered_multimap<Key, Type, Compare, Allocator>
>        >
>    >(ar, t);
> }
>
> // split non-intrusive serialization function member into separate
> // non intrusive save/load member functions
> template<class Archive, class Type, class Key, class Compare, class Allocator >
> inline void serialize(
>    Archive & ar,
>    boost::unordered_multimap<Key, Type, Compare, Allocator> &t,
>    const unsigned int file_version
> ){
>    boost::serialization::split_free(ar, t, file_version);
> }
>
> } // serialization
> } // namespace boost
>
> #endif // BOOST_SERIALIZATION_UNORDEREDMAP_HPP
>
>
>
>
>
>
> Best regards,
>
> SK
>
> --
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