1/////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8
2// test_no_rtti.cpp
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// note: this program tests the inter-operability of different
10// extended typeinfo systems. In this example, one class is
11// identified using the default RTTI while the other uses a custom
12// system based on the export key.
13//
14// As this program uses RTTI for one of the types, the test will fail
15// on a system for which RTTI is not enabled or not existent.
16
17#include <cstddef>
18#include <fstream>
19#include <iostream>
20
21#include <boost/config.hpp>
22#include <cstdio> // remove
23#if defined(BOOST_NO_STDC_NAMESPACE)
24namespace std{
25 using ::remove;
26}
27#endif
28
29#include <boost/serialization/type_info_implementation.hpp>
30#include <boost/serialization/export.hpp>
31#include <boost/serialization/nvp.hpp>
32
33#include "test_tools.hpp"
34
35#include <boost/archive/polymorphic_oarchive.hpp>
36#include <boost/archive/polymorphic_iarchive.hpp>
37
38#include "polymorphic_base.hpp"
39
40#include "polymorphic_derived1.hpp"
41
42#include "polymorphic_derived2.hpp"
43
44// save derived polymorphic class
45void save_derived(const char *testfile)
46{
47 test_ostream os(testfile, TEST_STREAM_FLAGS);
48 test_oarchive oa_implementation(os, TEST_ARCHIVE_FLAGS);
49 boost::archive::polymorphic_oarchive & oa_interface = oa_implementation;
50
51 polymorphic_derived1 *rd1 = new polymorphic_derived1;
52 polymorphic_derived2 *rd2 = new polymorphic_derived2;
53
54 std::cout << "saving polymorphic_derived1 (no_rtti)\n";
55 oa_interface << BOOST_SERIALIZATION_NVP(rd1);
56
57 std::cout << "saving polymorphic_derived2\n";
58 oa_interface << BOOST_SERIALIZATION_NVP(rd2);
59
60 const polymorphic_base *rb1 = rd1;
61 polymorphic_base *rb2 = rd2;
62 std::cout << "saving polymorphic_derived1 (no_rtti) through base (rtti)\n";
63 oa_interface << BOOST_SERIALIZATION_NVP(rb1);
64 std::cout << "saving polymorphic_derived2 through base\n";
65 oa_interface << BOOST_SERIALIZATION_NVP(rb2);
66
67 delete rd1;
68 delete rd2;
69}
70
71void load_derived(const char *testfile)
72{
73 test_istream is(testfile, TEST_STREAM_FLAGS);
74 test_iarchive ia_implementation(is, TEST_ARCHIVE_FLAGS);
75 boost::archive::polymorphic_iarchive & ia_interface = ia_implementation;
76
77 polymorphic_derived1 *rd1 = NULL;
78 polymorphic_derived2 *rd2 = NULL;
79
80 std::cout << "loading polymorphic_derived1 (no_rtti)\n";
81 ia_interface >> BOOST_SERIALIZATION_NVP(rd1);
82 BOOST_CHECK_MESSAGE(
83 boost::serialization::type_info_implementation<
84 polymorphic_derived1
85 >::type::get_const_instance()
86 ==
87 * boost::serialization::type_info_implementation<
88 polymorphic_derived1
89 >::type::get_const_instance().get_derived_extended_type_info(*rd1)
90 ,
91 "restored pointer d1 not of correct type"
92 );
93
94 std::cout << "loading polymorphic_derived2\n";
95 ia_interface >> BOOST_SERIALIZATION_NVP(rd2);
96 BOOST_CHECK_MESSAGE(
97 boost::serialization::type_info_implementation<
98 polymorphic_derived2
99 >::type::get_const_instance()
100 ==
101 * boost::serialization::type_info_implementation<
102 polymorphic_derived2
103 >::type::get_const_instance().get_derived_extended_type_info(*rd2)
104 ,
105 "restored pointer d2 not of correct type"
106 );
107 polymorphic_base *rb1 = NULL;
108 polymorphic_base *rb2 = NULL;
109
110 // the above operation registers the derived classes as a side
111 // effect. Hence, instances can now be correctly serialized through
112 // a base class pointer.
113 std::cout << "loading polymorphic_derived1 (no_rtti) through base (no_rtti)\n";
114 ia_interface >> BOOST_SERIALIZATION_NVP(rb1);
115
116 BOOST_CHECK_MESSAGE(
117 rb1 == dynamic_cast<polymorphic_base *>(rd1),
118 "serialized pointers not correctly restored"
119 );
120
121 BOOST_CHECK_MESSAGE(
122 boost::serialization::type_info_implementation<
123 polymorphic_derived1
124 >::type::get_const_instance()
125 ==
126 * boost::serialization::type_info_implementation<
127 polymorphic_base
128 >::type::get_const_instance().get_derived_extended_type_info(*rb1)
129 ,
130 "restored pointer b1 not of correct type"
131 );
132 std::cout << "loading polymorphic_derived2 through base (no_rtti)\n";
133 ia_interface >> BOOST_SERIALIZATION_NVP(rb2);
134
135 BOOST_CHECK_MESSAGE(
136 rb2 == dynamic_cast<polymorphic_base *>(rd2),
137 "serialized pointers not correctly restored"
138 );
139 BOOST_CHECK_MESSAGE(
140 boost::serialization::type_info_implementation<
141 polymorphic_derived2
142 >::type::get_const_instance()
143 ==
144 * boost::serialization::type_info_implementation<
145 polymorphic_base
146 >::type::get_const_instance().get_derived_extended_type_info(*rb2)
147 ,
148 "restored pointer b2 not of correct type"
149 );
150 delete rb1;
151 delete rb2;
152}
153
154int
155test_main( int /* argc */, char* /* argv */[] )
156{
157 const char * testfile = boost::archive::tmpnam(NULL);
158 BOOST_REQUIRE(NULL != testfile);
159
160 save_derived(testfile);
161 load_derived(testfile);
162 std::remove(filename: testfile);
163 return EXIT_SUCCESS;
164}
165
166// EOF
167

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