1 | /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 |
2 | // test_class_info_save.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 <fstream> |
13 | #include <string> |
14 | |
15 | #include <boost/static_assert.hpp> |
16 | #include <boost/archive/tmpdir.hpp> |
17 | #include <boost/preprocessor/stringize.hpp> |
18 | #include "test_tools.hpp" |
19 | |
20 | #include <boost/serialization/level.hpp> |
21 | #include <boost/serialization/tracking.hpp> |
22 | #include <boost/serialization/nvp.hpp> |
23 | |
24 | // first case : serialize WITHOUT class information |
25 | class A |
26 | { |
27 | friend class boost::serialization::access; |
28 | template<class Archive> |
29 | void serialize(Archive & /*ar*/, const unsigned int file_version){ |
30 | // class that don't save class info always have a version number of 0 |
31 | BOOST_CHECK(file_version == 0); |
32 | BOOST_STATIC_ASSERT(0 == ::boost::serialization::version<A>::value); |
33 | ++count; |
34 | } |
35 | public: |
36 | unsigned int count; |
37 | A() : count(0) {} |
38 | }; |
39 | |
40 | BOOST_CLASS_IMPLEMENTATION(A, ::boost::serialization::object_serializable) |
41 | BOOST_CLASS_TRACKING(A, ::boost::serialization::track_never) |
42 | |
43 | // second case : serialize WITH class information |
44 | // note: GCC compile fails if this is after the class declaration |
45 | class B; |
46 | BOOST_CLASS_VERSION(B, 2) |
47 | |
48 | class B |
49 | { |
50 | friend class boost::serialization::access; |
51 | template<class Archive> |
52 | void serialize(Archive & /*ar*/, const unsigned int file_version){ |
53 | // verify at execution that correct version number is passed on save |
54 | BOOST_CHECK( |
55 | static_cast<const int>(file_version) |
56 | == ::boost::serialization::version<B>::value |
57 | ); |
58 | ++count; |
59 | } |
60 | public: |
61 | unsigned int count; |
62 | B() : count(0) {} |
63 | }; |
64 | |
65 | BOOST_CLASS_IMPLEMENTATION(B, ::boost::serialization::object_class_info) |
66 | BOOST_CLASS_TRACKING(B, boost::serialization::track_always) |
67 | |
68 | #include <iostream> |
69 | |
70 | void out(const char *testfile, const A & a, const B & b) |
71 | { |
72 | test_ostream os(testfile, TEST_STREAM_FLAGS); |
73 | test_oarchive oa(os, TEST_ARCHIVE_FLAGS); |
74 | // write object twice to check tracking |
75 | oa << BOOST_SERIALIZATION_NVP(a); |
76 | oa << BOOST_SERIALIZATION_NVP(a); |
77 | BOOST_CHECK(a.count == 2); // no tracking => redundant saves |
78 | std::cout << "a.count=" << a.count << '\n' ; |
79 | oa << BOOST_SERIALIZATION_NVP(b); |
80 | oa << BOOST_SERIALIZATION_NVP(b); |
81 | BOOST_CHECK(b.count == 1); // tracking => no redundant saves |
82 | std::cout << "b.count=" << b.count << '\n' ; |
83 | } |
84 | |
85 | int |
86 | test_main( int /* argc */, char* /* argv */[] ) |
87 | { |
88 | A a; |
89 | B b; |
90 | std::string filename; |
91 | filename += boost::archive::tmpdir(); |
92 | filename += '/'; |
93 | filename += BOOST_PP_STRINGIZE(testfile_); |
94 | filename += BOOST_PP_STRINGIZE(BOOST_ARCHIVE_TEST); |
95 | out(testfile: filename.c_str(), a, b); |
96 | return EXIT_SUCCESS; |
97 | } |
98 | |
99 | // EOF |
100 | |