| 1 | /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 |
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| 2 | // basic_archive.cpp: |
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| 3 | |
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| 4 | // (C) Copyright 2002 Robert Ramey - http://www.rrsd.com . |
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| 5 | // Use, modification and distribution is subject to the Boost Software |
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| 6 | // License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at |
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| 7 | // http://www.boost.org/LICENSE_1_0.txt) |
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| 8 | |
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| 9 | // See http://www.boost.org for updates, documentation, and revision history. |
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| 10 | |
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| 11 | ////////////////////////////////////////////////////////////////////// |
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| 12 | // |
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| 13 | // objects are stored as |
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| 14 | // |
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| 15 | // class_id* // -1 for a null pointer |
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| 16 | // if a new class id |
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| 17 | // [ |
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| 18 | // exported key - class name* |
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| 19 | // tracking level - always/never |
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| 20 | // class version |
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| 21 | // ] |
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| 22 | // |
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| 23 | // if tracking |
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| 24 | // [ |
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| 25 | // object_id |
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| 26 | // ] |
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| 27 | // |
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| 28 | // [ // if a new object id |
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| 29 | // data... |
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| 30 | // ] |
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| 31 | // |
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| 32 | // * required only for pointers - optional for objects |
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| 33 | |
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| 34 | #define BOOST_ARCHIVE_SOURCE |
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| 35 | #include <boost/serialization/config.hpp> |
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| 36 | #include <boost/archive/basic_archive.hpp> |
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| 37 | |
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| 38 | namespace boost { |
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| 39 | namespace archive { |
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| 40 | |
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| 41 | /////////////////////////////////////////////////////////////////////// |
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| 42 | // constants used in archive signature |
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| 43 | //This should never ever change. note that is not an std::string |
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| 44 | // string. |
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| 45 | BOOST_SYMBOL_VISIBLE const char * |
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| 46 | BOOST_ARCHIVE_SIGNATURE(){ |
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| 47 | return "serialization::archive" ; |
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| 48 | } |
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| 49 | |
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| 50 | // this should change if the capabilities are added to the library |
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| 51 | // such that archives can be created which can't be read by previous |
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| 52 | // versions of this library |
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| 53 | // 1 - initial version |
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| 54 | // 2 - made address tracking optional |
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| 55 | // 3 - numerous changes - can't guarantee compatibility with previous versions |
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| 56 | // 4 - Boost 1.34 |
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| 57 | // added item_version to properly support versioning for collections |
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| 58 | // 5 - Boost 1.36 |
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| 59 | // changed serialization of collections: adding version even for primitive |
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| 60 | // types caused backwards compatibility breaking change in 1.35 |
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| 61 | // 6 - Boost 1.41 17 Nov 2009 |
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| 62 | // serializing collection sizes as std::size_t |
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| 63 | // 7 Boost 1.42 2 Feb 2010 |
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| 64 | // error - changed binary version to 16 bits w/o changing library version # |
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| 65 | // That is - binary archives are recorded with #6 even though they are |
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| 66 | // different from the previous versions. This means that binary archives |
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| 67 | // created with versions 1.42 and 1.43 will have to be fixed with a special |
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| 68 | // program which fixes the library version # in the header |
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| 69 | // Boost 1.43 6 May 2010 |
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| 70 | // no change |
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| 71 | // 8 - Boost 1.44 |
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| 72 | // separated version_type into library_version_type and class_version_type |
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| 73 | // changed version_type to be stored as 8 bits. |
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| 74 | // 10- fixed base64 output/input. |
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| 75 | // 11- not changes |
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| 76 | // 12- improved serialization of collections |
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| 77 | // 13- simplified visibility, removed Borland, removed pfto |
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| 78 | // 14- improved visibility, refactor map/set |
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| 79 | // 15- corrections to optional and collection loading |
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| 80 | // 16- eliminated dependency on <codecvt> which is buggy in some libraries |
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| 81 | // and now officially deprecated in the standard |
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| 82 | // 17- Boost 1.68 August 2018 |
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| 83 | // 18- addressed undefined behavior in archive constructors. |
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| 84 | // init() called from base wrote archive header before archive |
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| 85 | // was fully constructed. |
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| 86 | // 19- Boost 1.76 April 2021 |
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| 87 | // 20- Boost 1.84 April 2021 |
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| 88 | BOOST_SYMBOL_VISIBLE boost::serialization::library_version_type |
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| 89 | BOOST_ARCHIVE_VERSION(){ |
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| 90 | return boost::serialization::library_version_type(20); |
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| 91 | } |
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| 92 | |
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| 93 | } // namespace archive |
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| 94 | } // namespace boost |
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| 95 | |
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