| /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 |
| // basic_archive.cpp: |
| |
| // (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. |
| |
| ////////////////////////////////////////////////////////////////////// |
| // |
| // objects are stored as |
| // |
| // class_id* // -1 for a null pointer |
| // if a new class id |
| // [ |
| // exported key - class name* |
| // tracking level - always/never |
| // class version |
| // ] |
| // |
| // if tracking |
| // [ |
| // object_id |
| // ] |
| // |
| // [ // if a new object id |
| // data... |
| // ] |
| // |
| // * required only for pointers - optional for objects |
| |
| #define BOOST_ARCHIVE_SOURCE |
| #include <boost/archive/basic_archive.hpp> |
| |
| namespace boost { |
| namespace archive { |
| |
| /////////////////////////////////////////////////////////////////////// |
| // constants used in archive signature |
| //This should never ever change. note that is not an std::string |
| // string. |
| BOOST_ARCHIVE_DECL(const char *) |
| BOOST_ARCHIVE_SIGNATURE(){ |
| return "serialization::archive"; |
| } |
| |
| // this should change if the capabilities are added to the library |
| // such that archives can be created which can't be read by previous |
| // versions of this library |
| // 1 - initial version |
| // 2 - made address tracking optional |
| // 3 - numerous changes - can't guarentee compatibility with previous versions |
| // 4 - Boost 1.34 |
| // added item_version to properly support versioning for collections |
| // 5 - Boost 1.36 |
| // changed serialization of collections: adding version even for primitive |
| // types caused backwards compatibility breaking change in 1.35 |
| // 6 - Boost 1.41 17 Nov 200 |
| // serializing collection sizes as std::size_t |
| // 7 Boost 1.42 2 Feb 2010 |
| // error - changed binary version to 16 bits w/o changing library version # |
| // That is - binary archives are recorded with #6 even though they are |
| // different from the previous versions. This means that binary archives |
| // created with versions 1.42 and 1.43 will have to be fixed with a special |
| // program which fixes the library version # in the header |
| // Boost 1.43 6 May 2010 |
| // no change |
| // 8 - Boost 1.44 |
| // separated version_type into library_version_type and class_version_type |
| // changed version_type to be stored as 8 bits. |
| |
| BOOST_ARCHIVE_DECL(library_version_type) |
| BOOST_ARCHIVE_VERSION(){ |
| return library_version_type(8); |
| } |
| |
| } // namespace archive |
| } // namespace boost |
