mlpack  2.0.1
unordered_collections_save_imp.hpp
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1 #ifndef BOOST_SERIALIZATION_UNORDERED_COLLECTIONS_SAVE_IMP_HPP
2 #define BOOST_SERIALIZATION_UNORDERED_COLLECTIONS_SAVE_IMP_HPP
3 
4 // MS compatible compilers support #pragma once
5 #if defined(_MSC_VER) && (_MSC_VER >= 1020)
6 # pragma once
7 #endif
8 
10 // hash_collections_save_imp.hpp: serialization for stl collections
11 
12 // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
13 // (C) Copyright 2014 Jim Bell
14 // Use, modification and distribution is subject to the Boost Software
15 // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
16 // http://www.boost.org/LICENSE_1_0.txt)
17 
18 // See http://www.boost.org for updates, documentation, and revision history.
19 
20 // helper function templates for serialization of collections
21 
22 #include <boost/config.hpp>
23 #include <boost/serialization/nvp.hpp>
24 #include <boost/serialization/serialization.hpp>
25 #include <boost/serialization/version.hpp>
26 #include <boost/serialization/collection_size_type.hpp>
27 #include <boost/serialization/item_version_type.hpp>
28 
29 namespace boost{
30 namespace serialization {
31 namespace stl {
32 
34 // implementation of serialization for STL containers
35 //
36 
37 template<class Archive, class Container>
38 inline void save_unordered_collection(Archive & ar, const Container &s)
39 {
40  collection_size_type count(s.size());
41  const collection_size_type bucket_count(s.bucket_count());
42  const item_version_type item_version(
43  version<typename Container::value_type>::value
44  );
45 
46  #if 0
47  /* should only be necessary to create archives of previous versions
48  * which is not currently supported. So for now comment this out
49  */
50  boost::archive::library_version_type library_version(
51  ar.get_library_version()
52  );
53  // retrieve number of elements
54  ar << BOOST_SERIALIZATION_NVP(count);
55  ar << BOOST_SERIALIZATION_NVP(bucket_count);
56  if(boost::archive::library_version_type(3) < library_version){
57  // record number of elements
58  // make sure the target type is registered so we can retrieve
59  // the version when we load
60  ar << BOOST_SERIALIZATION_NVP(item_version);
61  }
62  #else
63  ar << BOOST_SERIALIZATION_NVP(count);
64  ar << BOOST_SERIALIZATION_NVP(bucket_count);
65  ar << BOOST_SERIALIZATION_NVP(item_version);
66  #endif
67 
68  typename Container::const_iterator it = s.begin();
69  while(count-- > 0){
70  // note borland emits a no-op without the explicit namespace
71  boost::serialization::save_construct_data_adl(
72  ar,
73  &(*it),
74  boost::serialization::version<
75  typename Container::value_type
76  >::value
77  );
78  ar << boost::serialization::make_nvp("item", *it++);
79  }
80 }
81 
82 } // namespace stl
83 } // namespace serialization
84 } // namespace boost
85 
86 #endif //BOOST_SERIALIZATION_UNORDERED_COLLECTIONS_SAVE_IMP_HPP
void save_unordered_collection(Archive &ar, const Container &s)