]>
Commit | Line | Data |
---|---|---|
7c673cae FG |
1 | // |
2 | // sp_unique_ptr_test.cpp | |
3 | // | |
4 | // Copyright (c) 2012 Peter Dimov | |
5 | // | |
6 | // Distributed under the Boost Software License, Version 1.0. | |
7 | // See accompanying file LICENSE_1_0.txt or copy at | |
8 | // http://www.boost.org/LICENSE_1_0.txt | |
9 | // | |
10 | ||
11 | #include <boost/shared_ptr.hpp> | |
12 | #include <boost/enable_shared_from_this.hpp> | |
f67539c2 | 13 | #include <boost/core/lightweight_test.hpp> |
b32b8144 | 14 | #include <boost/type_traits/remove_reference.hpp> |
7c673cae FG |
15 | #include <memory> |
16 | #include <utility> | |
17 | ||
18 | #if !defined( BOOST_NO_CXX11_SMART_PTR ) && !defined( BOOST_NO_CXX11_RVALUE_REFERENCES ) | |
19 | ||
20 | struct X: public boost::enable_shared_from_this< X > | |
21 | { | |
22 | static int instances; | |
23 | ||
24 | X() | |
25 | { | |
26 | ++instances; | |
27 | } | |
28 | ||
29 | ~X() | |
30 | { | |
31 | --instances; | |
32 | } | |
33 | ||
34 | private: | |
35 | ||
36 | X( X const & ); | |
37 | X & operator=( X const & ); | |
38 | }; | |
39 | ||
40 | int X::instances = 0; | |
41 | ||
42 | struct Y | |
43 | { | |
44 | static int instances; | |
45 | ||
46 | bool deleted_; | |
47 | ||
48 | Y(): deleted_( false ) | |
49 | { | |
50 | ++instances; | |
51 | } | |
52 | ||
53 | ~Y() | |
54 | { | |
55 | BOOST_TEST( deleted_ ); | |
56 | --instances; | |
57 | } | |
58 | ||
59 | private: | |
60 | ||
61 | Y( Y const & ); | |
62 | Y & operator=( Y const & ); | |
63 | }; | |
64 | ||
65 | int Y::instances = 0; | |
66 | ||
67 | struct YD | |
68 | { | |
69 | void operator()( Y* p ) const | |
70 | { | |
b32b8144 FG |
71 | if( p ) |
72 | { | |
73 | p->deleted_ = true; | |
74 | delete p; | |
75 | } | |
76 | else | |
77 | { | |
78 | BOOST_ERROR( "YD::operator()(0) called" ); | |
79 | } | |
7c673cae FG |
80 | } |
81 | }; | |
82 | ||
b32b8144 FG |
83 | template<class U, class T, class D> static void test_null_unique_ptr( std::unique_ptr<T, D> p1, std::unique_ptr<T, D> p2 ) |
84 | { | |
85 | BOOST_TEST( T::instances == 0 ); | |
86 | ||
87 | boost::shared_ptr<U> sp( std::move( p1 ) ); | |
88 | ||
89 | BOOST_TEST( sp.get() == 0 ); | |
90 | BOOST_TEST( sp.use_count() == 0 ); | |
91 | ||
92 | sp.reset( new T, typename boost::remove_reference<D>::type() ); | |
93 | ||
94 | BOOST_TEST( sp.get() != 0 ); | |
95 | BOOST_TEST( sp.use_count() == 1 ); | |
96 | ||
97 | BOOST_TEST( T::instances == 1 ); | |
98 | ||
99 | sp = std::move( p2 ); | |
100 | ||
101 | BOOST_TEST( sp.get() == 0 ); | |
102 | BOOST_TEST( sp.use_count() == 0 ); | |
103 | ||
104 | BOOST_TEST( T::instances == 0 ); | |
105 | } | |
106 | ||
7c673cae FG |
107 | int main() |
108 | { | |
109 | { | |
110 | BOOST_TEST( X::instances == 0 ); | |
111 | ||
112 | std::unique_ptr<X> p( new X ); | |
113 | BOOST_TEST( X::instances == 1 ); | |
114 | ||
115 | boost::shared_ptr<X> p2( std::move( p ) ); | |
116 | BOOST_TEST( X::instances == 1 ); | |
117 | BOOST_TEST( p.get() == 0 ); | |
118 | ||
119 | boost::shared_ptr<X> p3 = p2->shared_from_this(); | |
120 | BOOST_TEST( p2 == p3 ); | |
121 | BOOST_TEST( !(p2 < p3) && !(p3 < p2) ); | |
122 | ||
123 | p2.reset(); | |
124 | p3.reset(); | |
125 | BOOST_TEST( X::instances == 0 ); | |
126 | ||
127 | p2 = std::unique_ptr<X>( new X ); | |
128 | BOOST_TEST( X::instances == 1 ); | |
129 | ||
130 | p2 = std::unique_ptr<X>( new X ); | |
131 | BOOST_TEST( X::instances == 1 ); | |
132 | ||
133 | p2.reset(); | |
134 | BOOST_TEST( X::instances == 0 ); | |
135 | } | |
136 | ||
137 | { | |
138 | BOOST_TEST( X::instances == 0 ); | |
139 | ||
140 | std::unique_ptr<X> p( new X ); | |
141 | BOOST_TEST( X::instances == 1 ); | |
142 | ||
143 | boost::shared_ptr<X const> p2( std::move( p ) ); | |
144 | BOOST_TEST( X::instances == 1 ); | |
145 | BOOST_TEST( p.get() == 0 ); | |
146 | ||
147 | boost::shared_ptr<X const> p3 = p2->shared_from_this(); | |
148 | BOOST_TEST( p2 == p3 ); | |
149 | BOOST_TEST( !(p2 < p3) && !(p3 < p2) ); | |
150 | ||
151 | p2.reset(); | |
152 | p3.reset(); | |
153 | BOOST_TEST( X::instances == 0 ); | |
154 | ||
155 | p2 = std::unique_ptr<X>( new X ); | |
156 | BOOST_TEST( X::instances == 1 ); | |
157 | ||
158 | p2 = std::unique_ptr<X>( new X ); | |
159 | BOOST_TEST( X::instances == 1 ); | |
160 | ||
161 | p2.reset(); | |
162 | BOOST_TEST( X::instances == 0 ); | |
163 | } | |
164 | ||
165 | { | |
166 | BOOST_TEST( X::instances == 0 ); | |
167 | ||
168 | std::unique_ptr<X> p( new X ); | |
169 | BOOST_TEST( X::instances == 1 ); | |
170 | ||
171 | boost::shared_ptr<void> p2( std::move( p ) ); | |
172 | BOOST_TEST( X::instances == 1 ); | |
173 | BOOST_TEST( p.get() == 0 ); | |
174 | ||
175 | p2.reset(); | |
176 | BOOST_TEST( X::instances == 0 ); | |
177 | ||
178 | p2 = std::unique_ptr<X>( new X ); | |
179 | BOOST_TEST( X::instances == 1 ); | |
180 | ||
181 | p2 = std::unique_ptr<X>( new X ); | |
182 | BOOST_TEST( X::instances == 1 ); | |
183 | ||
184 | p2.reset(); | |
185 | BOOST_TEST( X::instances == 0 ); | |
186 | } | |
187 | ||
188 | { | |
189 | BOOST_TEST( Y::instances == 0 ); | |
190 | ||
191 | std::unique_ptr<Y, YD> p( new Y, YD() ); | |
192 | BOOST_TEST( Y::instances == 1 ); | |
193 | ||
194 | boost::shared_ptr<Y> p2( std::move( p ) ); | |
195 | BOOST_TEST( Y::instances == 1 ); | |
196 | BOOST_TEST( p.get() == 0 ); | |
197 | ||
198 | p2.reset(); | |
199 | BOOST_TEST( Y::instances == 0 ); | |
200 | ||
201 | p2 = std::unique_ptr<Y, YD>( new Y, YD() ); | |
202 | BOOST_TEST( Y::instances == 1 ); | |
203 | ||
204 | p2 = std::unique_ptr<Y, YD>( new Y, YD() ); | |
205 | BOOST_TEST( Y::instances == 1 ); | |
206 | ||
207 | p2.reset(); | |
208 | BOOST_TEST( Y::instances == 0 ); | |
209 | } | |
210 | ||
211 | { | |
212 | BOOST_TEST( Y::instances == 0 ); | |
213 | ||
214 | YD yd; | |
215 | ||
216 | std::unique_ptr<Y, YD&> p( new Y, yd ); | |
217 | BOOST_TEST( Y::instances == 1 ); | |
218 | ||
219 | boost::shared_ptr<Y> p2( std::move( p ) ); | |
220 | BOOST_TEST( Y::instances == 1 ); | |
221 | BOOST_TEST( p.get() == 0 ); | |
222 | ||
223 | p2.reset(); | |
224 | BOOST_TEST( Y::instances == 0 ); | |
225 | ||
226 | p2 = std::unique_ptr<Y, YD&>( new Y, yd ); | |
227 | BOOST_TEST( Y::instances == 1 ); | |
228 | ||
229 | p2 = std::unique_ptr<Y, YD&>( new Y, yd ); | |
230 | BOOST_TEST( Y::instances == 1 ); | |
231 | ||
232 | p2.reset(); | |
233 | BOOST_TEST( Y::instances == 0 ); | |
234 | } | |
235 | ||
236 | { | |
237 | BOOST_TEST( Y::instances == 0 ); | |
238 | ||
239 | YD yd; | |
240 | ||
241 | std::unique_ptr<Y, YD const&> p( new Y, yd ); | |
242 | BOOST_TEST( Y::instances == 1 ); | |
243 | ||
244 | boost::shared_ptr<Y> p2( std::move( p ) ); | |
245 | BOOST_TEST( Y::instances == 1 ); | |
246 | BOOST_TEST( p.get() == 0 ); | |
247 | ||
248 | p2.reset(); | |
249 | BOOST_TEST( Y::instances == 0 ); | |
250 | ||
251 | p2 = std::unique_ptr<Y, YD const&>( new Y, yd ); | |
252 | BOOST_TEST( Y::instances == 1 ); | |
253 | ||
254 | p2 = std::unique_ptr<Y, YD const&>( new Y, yd ); | |
255 | BOOST_TEST( Y::instances == 1 ); | |
256 | ||
257 | p2.reset(); | |
258 | BOOST_TEST( Y::instances == 0 ); | |
259 | } | |
260 | ||
b32b8144 FG |
261 | { |
262 | test_null_unique_ptr<X>( std::unique_ptr<X>(), std::unique_ptr<X>() ); | |
263 | test_null_unique_ptr<X const>( std::unique_ptr<X>(), std::unique_ptr<X>() ); | |
264 | test_null_unique_ptr<void>( std::unique_ptr<X>(), std::unique_ptr<X>() ); | |
265 | test_null_unique_ptr<void const>( std::unique_ptr<X>(), std::unique_ptr<X>() ); | |
266 | } | |
267 | ||
268 | { | |
269 | test_null_unique_ptr<Y>( std::unique_ptr<Y, YD>( 0, YD() ), std::unique_ptr<Y, YD>( 0, YD() ) ); | |
270 | test_null_unique_ptr<Y const>( std::unique_ptr<Y, YD>( 0, YD() ), std::unique_ptr<Y, YD>( 0, YD() ) ); | |
271 | test_null_unique_ptr<void>( std::unique_ptr<Y, YD>( 0, YD() ), std::unique_ptr<Y, YD>( 0, YD() ) ); | |
272 | test_null_unique_ptr<void const>( std::unique_ptr<Y, YD>( 0, YD() ), std::unique_ptr<Y, YD>( 0, YD() ) ); | |
273 | } | |
274 | ||
275 | { | |
276 | YD yd; | |
277 | ||
278 | test_null_unique_ptr<Y>( std::unique_ptr<Y, YD&>( 0, yd ), std::unique_ptr<Y, YD&>( 0, yd ) ); | |
279 | test_null_unique_ptr<Y const>( std::unique_ptr<Y, YD&>( 0, yd ), std::unique_ptr<Y, YD&>( 0, yd ) ); | |
280 | test_null_unique_ptr<void>( std::unique_ptr<Y, YD&>( 0, yd ), std::unique_ptr<Y, YD&>( 0, yd ) ); | |
281 | test_null_unique_ptr<void const>( std::unique_ptr<Y, YD&>( 0, yd ), std::unique_ptr<Y, YD&>( 0, yd ) ); | |
282 | } | |
283 | ||
7c673cae FG |
284 | return boost::report_errors(); |
285 | } | |
286 | ||
287 | #else // !defined( BOOST_NO_CXX11_SMART_PTR ) && !defined( BOOST_NO_CXX11_RVALUE_REFERENCES ) | |
288 | ||
289 | int main() | |
290 | { | |
291 | return 0; | |
292 | } | |
293 | ||
294 | #endif |