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20effc67 | 1 | /* Copyright 2003-2020 Joaquin M Lopez Munoz. |
7c673cae FG |
2 | * Distributed under the Boost Software License, Version 1.0. |
3 | * (See accompanying file LICENSE_1_0.txt or copy at | |
4 | * http://www.boost.org/LICENSE_1_0.txt) | |
5 | * | |
6 | * See http://www.boost.org/libs/multi_index for library home page. | |
7 | */ | |
8 | ||
9 | #ifndef BOOST_MULTI_INDEX_DETAIL_ARCHIVE_CONSTRUCTED_HPP | |
10 | #define BOOST_MULTI_INDEX_DETAIL_ARCHIVE_CONSTRUCTED_HPP | |
11 | ||
12 | #if defined(_MSC_VER) | |
13 | #pragma once | |
14 | #endif | |
15 | ||
16 | #include <boost/config.hpp> /* keep it first to prevent nasty warns in MSVC */ | |
20effc67 | 17 | #include <boost/core/no_exceptions_support.hpp> |
7c673cae FG |
18 | #include <boost/noncopyable.hpp> |
19 | #include <boost/serialization/serialization.hpp> | |
20 | #include <boost/type_traits/aligned_storage.hpp> | |
21 | #include <boost/type_traits/alignment_of.hpp> | |
22 | ||
23 | namespace boost{ | |
24 | ||
25 | namespace multi_index{ | |
26 | ||
27 | namespace detail{ | |
28 | ||
29 | /* constructs a stack-based object from a serialization archive */ | |
30 | ||
31 | template<typename T> | |
32 | struct archive_constructed:private noncopyable | |
33 | { | |
34 | template<class Archive> | |
35 | archive_constructed(Archive& ar,const unsigned int version) | |
36 | { | |
37 | serialization::load_construct_data_adl(ar,&get(),version); | |
38 | BOOST_TRY{ | |
39 | ar>>get(); | |
40 | } | |
41 | BOOST_CATCH(...){ | |
42 | (&get())->~T(); | |
43 | BOOST_RETHROW; | |
44 | } | |
45 | BOOST_CATCH_END | |
46 | } | |
47 | ||
48 | template<class Archive> | |
49 | archive_constructed(const char* name,Archive& ar,const unsigned int version) | |
50 | { | |
51 | serialization::load_construct_data_adl(ar,&get(),version); | |
52 | BOOST_TRY{ | |
53 | ar>>serialization::make_nvp(name,get()); | |
54 | } | |
55 | BOOST_CATCH(...){ | |
56 | (&get())->~T(); | |
57 | BOOST_RETHROW; | |
58 | } | |
59 | BOOST_CATCH_END | |
60 | } | |
61 | ||
62 | ~archive_constructed() | |
63 | { | |
64 | (&get())->~T(); | |
65 | } | |
66 | ||
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67 | #include <boost/multi_index/detail/ignore_wstrict_aliasing.hpp> |
68 | ||
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69 | T& get(){return *reinterpret_cast<T*>(&space);} |
70 | ||
b32b8144 FG |
71 | #include <boost/multi_index/detail/restore_wstrict_aliasing.hpp> |
72 | ||
7c673cae FG |
73 | private: |
74 | typename aligned_storage<sizeof(T),alignment_of<T>::value>::type space; | |
75 | }; | |
76 | ||
77 | } /* namespace multi_index::detail */ | |
78 | ||
79 | } /* namespace multi_index */ | |
80 | ||
81 | } /* namespace boost */ | |
82 | ||
83 | #endif |