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1 | /////////1/////////2/////////3/////////4/////////5/////////6/////////7/////////8 |
2 | // test_polymorphic.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 | // should pass compilation and execution | |
10 | ||
11 | #include <cstddef> // NULL | |
12 | #include <cstdio> // remove | |
13 | #include <fstream> | |
14 | ||
15 | #include <boost/config.hpp> | |
16 | #if defined(BOOST_NO_STDC_NAMESPACE) | |
17 | namespace std{ | |
18 | using ::remove; | |
19 | } | |
20 | #endif | |
21 | ||
22 | // the following is to ensure that when one of the libraries changes | |
23 | // BJAM rebuilds and relinks the test. | |
24 | /* | |
25 | #include "polymorphic_text_archive.hpp" | |
26 | #include "polymorphic_text_warchive.hpp" | |
27 | #include "polymorphic_binary_archive.hpp" | |
28 | #include "polymorphic_xml_archive.hpp" | |
29 | #include "polymorphic_xml_warchive.hpp" | |
30 | */ | |
31 | ||
32 | #include <string> | |
33 | #include <vector> | |
34 | ||
35 | #include "test_tools.hpp" | |
36 | #include <boost/lexical_cast.hpp> | |
37 | #include <boost/serialization/split_free.hpp> | |
38 | #include <boost/serialization/vector.hpp> | |
39 | #include <boost/serialization/nvp.hpp> | |
40 | // this test uses a special string (my_string) whose contents are shared | |
41 | // and hence saved in the archive only once. We need a helper in order | |
42 | // to convert my_string into a serializable type | |
43 | ||
44 | class my_string:public std::string | |
45 | { | |
46 | typedef std::string super; | |
47 | ||
48 | public: | |
49 | my_string(){} | |
50 | my_string(const super & str): super(str){} | |
51 | my_string & operator=(const super& rhs) { | |
52 | super::operator=(rhs); | |
53 | return *this; | |
54 | } | |
55 | }; | |
56 | ||
57 | struct my_string_helper | |
58 | { | |
59 | typedef std::vector<my_string> table; | |
60 | table m_t; | |
61 | }; | |
62 | ||
63 | BOOST_SERIALIZATION_SPLIT_FREE(my_string) | |
64 | ||
65 | namespace boost { | |
66 | namespace serialization { | |
67 | ||
68 | template<class Archive> | |
69 | void save(Archive & ar, const my_string & str, const unsigned int /* version */) | |
70 | { | |
71 | void (* const idx)(Archive &, const my_string &, const unsigned int) = & save; | |
72 | void * const id = reinterpret_cast<void * const>(idx); | |
73 | my_string_helper & msh = ar.template get_helper<my_string_helper>(id); | |
74 | ||
75 | my_string_helper::table t = msh.m_t; | |
76 | my_string_helper::table::iterator it = std::find(t.begin(), t.end(), str); | |
77 | if(it == t.end()){ | |
78 | my_string_helper::table::size_type s = t.size(); | |
79 | ar << make_nvp("index", s); | |
80 | t.push_back(str); | |
81 | ar << make_nvp("string", static_cast<const std::string &>(str)); | |
82 | } | |
83 | else{ | |
84 | my_string_helper::table::size_type s = it - t.begin(); | |
85 | ar << make_nvp("index", s); | |
86 | } | |
87 | } | |
88 | ||
89 | template<class Archive> | |
90 | void load(Archive & ar, my_string & str, const unsigned int /* version */) | |
91 | { | |
92 | void (* const idx)(Archive &, my_string &, const unsigned int) = & load; | |
93 | void * const id = reinterpret_cast<void * const>(idx); | |
94 | my_string_helper & msh = ar.template get_helper<my_string_helper>(id); | |
95 | ||
96 | my_string_helper::table t = msh.m_t; | |
97 | ||
98 | my_string_helper::table::size_type s; | |
99 | ar >> make_nvp("index", s); | |
100 | t.reserve(s); | |
101 | if(s >= t.size()){ | |
102 | std::string tmp; | |
103 | ar >> make_nvp("string", tmp); | |
104 | str = tmp; | |
105 | t.push_back(str); | |
106 | } | |
107 | else{ | |
108 | str = t[s]; | |
109 | } | |
110 | } | |
111 | ||
112 | } // namespace serialization | |
113 | } // namespace boost | |
114 | #include <boost/archive/polymorphic_oarchive.hpp> | |
115 | #include <boost/archive/polymorphic_iarchive.hpp> | |
116 | ||
117 | int test_main(int /* argc */, char * /* argv */ []) | |
118 | { | |
119 | const char * testfile = boost::archive::tmpnam(NULL); | |
120 | BOOST_REQUIRE(NULL != testfile); | |
121 | ||
122 | std::vector<my_string> v1; | |
123 | for(int i=0; i<1000; ++i){ | |
124 | v1.push_back(my_string(boost::lexical_cast<std::string>(i % 100))); | |
125 | } | |
126 | ||
127 | // test using using polymorphic implementation. | |
128 | { | |
129 | test_ostream os(testfile, TEST_STREAM_FLAGS); | |
130 | test_oarchive oa_implementation(os, TEST_ARCHIVE_FLAGS); | |
131 | oa_implementation << boost::serialization::make_nvp("vector", v1); | |
132 | } | |
133 | { | |
134 | std::vector<my_string> v2; | |
135 | test_istream is(testfile, TEST_STREAM_FLAGS); | |
136 | test_iarchive ia_implementation(is, TEST_ARCHIVE_FLAGS); | |
137 | ia_implementation >> boost::serialization::make_nvp("vector", v2); | |
138 | BOOST_CHECK(v1 == v2); | |
139 | } | |
140 | std::remove(testfile); | |
141 | ||
142 | // test using using polymorphic interface. | |
143 | { | |
144 | test_ostream os(testfile, TEST_STREAM_FLAGS); | |
145 | test_oarchive oa_implementation(os, TEST_ARCHIVE_FLAGS); | |
146 | boost::archive::polymorphic_oarchive & oa_interface = oa_implementation; | |
147 | oa_interface << boost::serialization::make_nvp("vector", v1); | |
148 | } | |
149 | { | |
150 | std::vector<my_string> v2; | |
151 | test_istream is(testfile, TEST_STREAM_FLAGS); | |
152 | test_iarchive ia_implementation(is, TEST_ARCHIVE_FLAGS); | |
153 | boost::archive::polymorphic_iarchive & ia_interface = ia_implementation; | |
154 | ia_interface >> boost::serialization::make_nvp("vector", v2); | |
155 | BOOST_CHECK(v1 == v2); | |
156 | } | |
157 | std::remove(testfile); | |
158 | std::remove(testfile); | |
159 | return EXIT_SUCCESS; | |
160 | } |