source: NonGTP/Boost/boost/archive/basic_binary_iarchive.hpp @ 857

Revision 857, 4.0 KB checked in by igarcia, 19 years ago (diff)
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[857]1#ifndef BOOST_ARCHIVE_BASIC_BINARY_IARCHIVE_HPP
2#define BOOST_ARCHIVE_BASIC_BINARY_IARCHIVE_HPP
3
4// MS compatible compilers support #pragma once
5#if defined(_MSC_VER) && (_MSC_VER >= 1020)
6# pragma once
7#endif
8
9/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
10// basic_binary_iarchive.hpp
11//
12// archives stored as native binary - this should be the fastest way
13// to archive the state of a group of obects.  It makes no attempt to
14// convert to any canonical form.
15
16// IN GENERAL, ARCHIVES CREATED WITH THIS CLASS WILL NOT BE READABLE
17// ON PLATFORM APART FROM THE ONE THEY ARE CREATED ON
18
19// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
20// Use, modification and distribution is subject to the Boost Software
21// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
22// http://www.boost.org/LICENSE_1_0.txt)
23
24//  See http://www.boost.org for updates, documentation, and revision history.
25#include <cstring>
26
27#include <boost/config.hpp>
28#include <boost/detail/workaround.hpp>
29#if defined(BOOST_NO_STDC_NAMESPACE)
30    namespace std{ using ::memcpy; }
31#endif
32
33#include <boost/throw_exception.hpp>
34#include <boost/pfto.hpp>
35
36#include <boost/archive/detail/iserializer.hpp>
37#include <boost/archive/detail/interface_iarchive.hpp>
38#include <boost/archive/detail/common_iarchive.hpp>
39
40#include <boost/serialization/string.hpp>
41
42#include <boost/archive/detail/abi_prefix.hpp> // must be the last header
43
44namespace boost {
45namespace archive {
46
47/////////////////////////////////////////////////////////////////////////
48// class basic_binary_iarchive - read serialized objects from a input binary stream
49template<class Archive>
50class basic_binary_iarchive :
51    public detail::common_iarchive<Archive>
52{
53#if BOOST_WORKAROUND(BOOST_MSVC, <= 1300)
54public:
55#elif defined(BOOST_MSVC)
56    // for some inexplicable reason insertion of "class" generates compile erro
57    // on msvc 7.1
58    friend detail::interface_iarchive<Archive>;
59protected:
60#else
61    friend class detail::interface_iarchive<Archive>;
62protected:
63#endif
64    // intermediate level to support override of operators
65    // fot templates in the absence of partial function
66    // template ordering
67    template<class T>
68    void load_override(T & t, BOOST_PFTO int)
69    {
70        archive::load(* this->This(), t);
71    }
72    // binary files don't include the optional information
73    void load_override(class_id_optional_type & /* t */, int){}
74
75    // the following have been overridden to provide specific sizes
76    // for these pseudo prmitive types.
77    void load_override(version_type & t, int){
78        // upto 255 versions
79        unsigned char x;
80        * this->This() >> x;
81        t = version_type(x);
82    }
83    void load_override(class_id_type & t, int){
84        // upto 32K classes
85        int_least16_t x;
86        * this->This() >> x;
87        t = class_id_type(x);
88    }
89    void load_override(class_id_reference_type & t, int){
90        // upto 32K classes
91        int_least16_t x;
92        * this->This() >> x;
93        t = class_id_reference_type(x);
94    }
95    void load_override(object_id_type & t, int){
96        // upto 2G objects
97        uint_least32_t x;
98        * this->This() >> x;
99        t = object_id_type(x);
100    }
101    void load_override(object_reference_type & t, int){
102        // upto 2G objects
103        uint_least32_t x;
104        * this->This() >> x;
105        t = object_reference_type(x);
106    }
107    void load_override(tracking_type & t, int){
108        char x;
109        * this->This() >> x;
110        t = (0 != x);
111    }
112
113    BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
114    load_override(class_name_type & t, int);
115    BOOST_ARCHIVE_OR_WARCHIVE_DECL(void)
116    init();
117   
118    basic_binary_iarchive(unsigned int flags) :
119        detail::common_iarchive<Archive>(flags)
120    {}
121};
122
123} // namespace archive
124} // namespace boost
125
126#include <boost/archive/detail/abi_suffix.hpp> // pops abi_suffix.hpp pragmas
127
128#endif // BOOST_ARCHIVE_BASIC_BINARY_IARCHIVE_HPP
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