1/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
2// test_class_info_load.cpp: test implementation level trait
3
4// (C) Copyright 2002 Robert Ramey - http://www.rrsd.com .
5// Use, modification and distribution is subject to the Boost Software
6// License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
7// http://www.boost.org/LICENSE_1_0.txt)
8
9// test implementation level "object_class_info"
10// should pass compilation and execution
11
12#include <string>
13#include <fstream>
14
15#include <boost/archive/tmpdir.hpp>
16#include <boost/preprocessor/stringize.hpp>
17#include "test_tools.hpp"
18
19#include <boost/static_assert.hpp>
20#include <boost/serialization/level.hpp>
21#include <boost/serialization/tracking.hpp>
22#include <boost/serialization/nvp.hpp>
23
24class A
25{
26 friend class boost::serialization::access;
27 template<class Archive>
28 void serialize(Archive & /*ar*/, const unsigned int file_version){
29 // class that don't save class info always have a version number of 0
30 BOOST_CHECK(file_version == 0);
31 BOOST_STATIC_ASSERT(0 == ::boost::serialization::version<A>::value);
32 ++count;
33 }
34public:
35 unsigned int count;
36 A() : count(0) {}
37};
38
39BOOST_CLASS_IMPLEMENTATION(A, ::boost::serialization::object_serializable)
40BOOST_CLASS_TRACKING(A, ::boost::serialization::track_never)
41
42// second case : serialize WITH class information
43class B
44{
45 friend class boost::serialization::access;
46 template<class Archive>
47 void serialize(Archive & /*ar*/, const unsigned int file_version){
48 // verify at execution that the version number corresponds to the saved
49 // one
50 BOOST_CHECK(file_version == 2);
51 ++count;
52 }
53public:
54 unsigned int count;
55 B() : count(0) {}
56};
57
58BOOST_CLASS_IMPLEMENTATION(B, ::boost::serialization::object_class_info)
59BOOST_CLASS_TRACKING(B, ::boost::serialization::track_never)
60BOOST_CLASS_VERSION(B, 4)
61
62void in(const char *testfile, A & a, B & b)
63{
64 test_istream is(testfile, TEST_STREAM_FLAGS);
65 test_iarchive ia(is, TEST_ARCHIVE_FLAGS);
66 ia >> BOOST_SERIALIZATION_NVP(a);
67 ia >> BOOST_SERIALIZATION_NVP(a);
68 BOOST_CHECK(a.count == 2); // no tracking => redundant loads
69 ia >> BOOST_SERIALIZATION_NVP(b);
70 ia >> BOOST_SERIALIZATION_NVP(b);
71 // note: archive was saved with tracking so that is what determines
72 // whether tracking is perform on load - regardless of the latest
73 // tracking setting.
74 BOOST_CHECK(b.count == 1);
75}
76
77int
78test_main( int /* argc */, char* /* argv */[] )
79{
80 A a;
81 B b;
82 std::string filename;
83 filename += boost::archive::tmpdir();
84 filename += '/';
85 filename += BOOST_PP_STRINGIZE(testfile_);
86 filename += BOOST_PP_STRINGIZE(BOOST_ARCHIVE_TEST);
87 in(testfile: filename.c_str(), a, b);
88 return EXIT_SUCCESS;
89}
90
91// EOF
92

source code of boost/libs/serialization/test/test_class_info_load.cpp