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7c673cae FG |
1 | // |
2 | // sp_bml_unique_ptr_test.cpp | |
3 | // | |
4 | // Copyright (c) 2012, 2015 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> | |
13 | #include <boost/detail/lightweight_test.hpp> | |
14 | #include <boost/move/unique_ptr.hpp> | |
b32b8144 | 15 | #include <boost/type_traits/remove_reference.hpp> |
7c673cae FG |
16 | #include <memory> |
17 | #include <utility> | |
18 | ||
19 | struct X: public boost::enable_shared_from_this< X > | |
20 | { | |
21 | static int instances; | |
22 | ||
23 | X() | |
24 | { | |
25 | ++instances; | |
26 | } | |
27 | ||
28 | ~X() | |
29 | { | |
30 | --instances; | |
31 | } | |
32 | ||
33 | private: | |
34 | ||
35 | X( X const & ); | |
36 | X & operator=( X const & ); | |
37 | }; | |
38 | ||
39 | int X::instances = 0; | |
40 | ||
41 | struct Y | |
42 | { | |
43 | static int instances; | |
44 | ||
45 | bool deleted_; | |
46 | ||
47 | Y(): deleted_( false ) | |
48 | { | |
49 | ++instances; | |
50 | } | |
51 | ||
52 | ~Y() | |
53 | { | |
54 | BOOST_TEST( deleted_ ); | |
55 | --instances; | |
56 | } | |
57 | ||
58 | private: | |
59 | ||
60 | Y( Y const & ); | |
61 | Y & operator=( Y const & ); | |
62 | }; | |
63 | ||
64 | int Y::instances = 0; | |
65 | ||
66 | struct YD | |
67 | { | |
68 | void operator()( Y* p ) const | |
69 | { | |
b32b8144 FG |
70 | if( p ) |
71 | { | |
72 | p->deleted_ = true; | |
73 | delete p; | |
74 | } | |
75 | else | |
76 | { | |
77 | BOOST_ERROR( "YD::operator()(0) called" ); | |
78 | } | |
7c673cae FG |
79 | } |
80 | }; | |
81 | ||
b32b8144 FG |
82 | template<class U, class T, class D> static void test_null_unique_ptr( boost::movelib::unique_ptr<T, D> p1, boost::movelib::unique_ptr<T, D> p2 ) |
83 | { | |
84 | BOOST_TEST( T::instances == 0 ); | |
85 | ||
86 | boost::shared_ptr<U> sp( boost::move( p1 ) ); | |
87 | ||
88 | BOOST_TEST( sp.get() == 0 ); | |
89 | BOOST_TEST( sp.use_count() == 0 ); | |
90 | ||
91 | sp.reset( new T, typename boost::remove_reference<D>::type() ); | |
92 | ||
93 | BOOST_TEST( sp.get() != 0 ); | |
94 | BOOST_TEST( sp.use_count() == 1 ); | |
95 | ||
96 | BOOST_TEST( T::instances == 1 ); | |
97 | ||
98 | sp = boost::move( p2 ); | |
99 | ||
100 | BOOST_TEST( sp.get() == 0 ); | |
101 | BOOST_TEST( sp.use_count() == 0 ); | |
102 | ||
103 | BOOST_TEST( T::instances == 0 ); | |
104 | } | |
105 | ||
7c673cae FG |
106 | int main() |
107 | { | |
108 | { | |
109 | BOOST_TEST( X::instances == 0 ); | |
110 | ||
111 | boost::movelib::unique_ptr<X> p( new X ); | |
112 | BOOST_TEST( X::instances == 1 ); | |
113 | ||
114 | boost::shared_ptr<X> p2( boost::move( p ) ); | |
115 | BOOST_TEST( X::instances == 1 ); | |
116 | BOOST_TEST( p.get() == 0 ); | |
117 | ||
118 | boost::shared_ptr<X> p3 = p2->shared_from_this(); | |
119 | BOOST_TEST( p2 == p3 ); | |
120 | BOOST_TEST( !(p2 < p3) && !(p3 < p2) ); | |
121 | ||
122 | p2.reset(); | |
123 | p3.reset(); | |
124 | BOOST_TEST( X::instances == 0 ); | |
125 | ||
126 | p2 = boost::movelib::unique_ptr<X>( new X ); | |
127 | BOOST_TEST( X::instances == 1 ); | |
128 | ||
129 | p2 = boost::movelib::unique_ptr<X>( new X ); | |
130 | BOOST_TEST( X::instances == 1 ); | |
131 | ||
132 | p3 = p2->shared_from_this(); | |
133 | BOOST_TEST( p2 == p3 ); | |
134 | BOOST_TEST( !(p2 < p3) && !(p3 < p2) ); | |
135 | ||
136 | p2.reset(); | |
137 | p3.reset(); | |
138 | BOOST_TEST( X::instances == 0 ); | |
139 | } | |
140 | ||
141 | { | |
142 | BOOST_TEST( X::instances == 0 ); | |
143 | ||
144 | boost::movelib::unique_ptr<X> p( new X ); | |
145 | BOOST_TEST( X::instances == 1 ); | |
146 | ||
147 | boost::shared_ptr<X const> p2( boost::move( p ) ); | |
148 | BOOST_TEST( X::instances == 1 ); | |
149 | BOOST_TEST( p.get() == 0 ); | |
150 | ||
151 | boost::shared_ptr<X const> p3 = p2->shared_from_this(); | |
152 | BOOST_TEST( p2 == p3 ); | |
153 | BOOST_TEST( !(p2 < p3) && !(p3 < p2) ); | |
154 | ||
155 | p2.reset(); | |
156 | p3.reset(); | |
157 | BOOST_TEST( X::instances == 0 ); | |
158 | ||
159 | p2 = boost::movelib::unique_ptr<X>( new X ); | |
160 | BOOST_TEST( X::instances == 1 ); | |
161 | ||
162 | p2 = boost::movelib::unique_ptr<X>( new X ); | |
163 | BOOST_TEST( X::instances == 1 ); | |
164 | ||
165 | p3 = p2->shared_from_this(); | |
166 | BOOST_TEST( p2 == p3 ); | |
167 | BOOST_TEST( !(p2 < p3) && !(p3 < p2) ); | |
168 | ||
169 | p2.reset(); | |
170 | p3.reset(); | |
171 | BOOST_TEST( X::instances == 0 ); | |
172 | } | |
173 | ||
174 | { | |
175 | BOOST_TEST( X::instances == 0 ); | |
176 | ||
177 | boost::movelib::unique_ptr<X> p( new X ); | |
178 | BOOST_TEST( X::instances == 1 ); | |
179 | ||
180 | boost::shared_ptr<void> p2( boost::move( p ) ); | |
181 | BOOST_TEST( X::instances == 1 ); | |
182 | BOOST_TEST( p.get() == 0 ); | |
183 | ||
184 | p2.reset(); | |
185 | BOOST_TEST( X::instances == 0 ); | |
186 | ||
187 | p2 = boost::movelib::unique_ptr<X>( new X ); | |
188 | BOOST_TEST( X::instances == 1 ); | |
189 | ||
190 | p2 = boost::movelib::unique_ptr<X>( new X ); | |
191 | BOOST_TEST( X::instances == 1 ); | |
192 | ||
193 | p2.reset(); | |
194 | BOOST_TEST( X::instances == 0 ); | |
195 | } | |
196 | ||
197 | { | |
198 | BOOST_TEST( Y::instances == 0 ); | |
199 | ||
200 | boost::movelib::unique_ptr<Y, YD> p( new Y, YD() ); | |
201 | BOOST_TEST( Y::instances == 1 ); | |
202 | ||
203 | boost::shared_ptr<Y> p2( boost::move( p ) ); | |
204 | BOOST_TEST( Y::instances == 1 ); | |
205 | BOOST_TEST( p.get() == 0 ); | |
206 | ||
207 | p2.reset(); | |
208 | BOOST_TEST( Y::instances == 0 ); | |
209 | ||
210 | p2 = boost::movelib::unique_ptr<Y, YD>( new Y, YD() ); | |
211 | BOOST_TEST( Y::instances == 1 ); | |
212 | ||
213 | p2 = boost::movelib::unique_ptr<Y, YD>( new Y, YD() ); | |
214 | BOOST_TEST( Y::instances == 1 ); | |
215 | ||
216 | p2.reset(); | |
217 | BOOST_TEST( Y::instances == 0 ); | |
218 | } | |
219 | ||
220 | { | |
221 | BOOST_TEST( Y::instances == 0 ); | |
222 | ||
223 | YD yd; | |
224 | ||
225 | boost::movelib::unique_ptr<Y, YD&> p( new Y, yd ); | |
226 | BOOST_TEST( Y::instances == 1 ); | |
227 | ||
228 | boost::shared_ptr<Y> p2( boost::move( p ) ); | |
229 | BOOST_TEST( Y::instances == 1 ); | |
230 | BOOST_TEST( p.get() == 0 ); | |
231 | ||
232 | p2.reset(); | |
233 | BOOST_TEST( Y::instances == 0 ); | |
234 | ||
235 | p2 = boost::movelib::unique_ptr<Y, YD&>( new Y, yd ); | |
236 | BOOST_TEST( Y::instances == 1 ); | |
237 | ||
238 | p2 = boost::movelib::unique_ptr<Y, YD&>( new Y, yd ); | |
239 | BOOST_TEST( Y::instances == 1 ); | |
240 | ||
241 | p2.reset(); | |
242 | BOOST_TEST( Y::instances == 0 ); | |
243 | } | |
244 | ||
245 | { | |
246 | BOOST_TEST( Y::instances == 0 ); | |
247 | ||
248 | YD yd; | |
249 | ||
250 | boost::movelib::unique_ptr<Y, YD const&> p( new Y, yd ); | |
251 | BOOST_TEST( Y::instances == 1 ); | |
252 | ||
253 | boost::shared_ptr<Y> p2( boost::move( p ) ); | |
254 | BOOST_TEST( Y::instances == 1 ); | |
255 | BOOST_TEST( p.get() == 0 ); | |
256 | ||
257 | p2.reset(); | |
258 | BOOST_TEST( Y::instances == 0 ); | |
259 | ||
260 | p2 = boost::movelib::unique_ptr<Y, YD const&>( new Y, yd ); | |
261 | BOOST_TEST( Y::instances == 1 ); | |
262 | ||
263 | p2 = boost::movelib::unique_ptr<Y, YD const&>( new Y, yd ); | |
264 | BOOST_TEST( Y::instances == 1 ); | |
265 | ||
266 | p2.reset(); | |
267 | BOOST_TEST( Y::instances == 0 ); | |
268 | } | |
269 | ||
b32b8144 FG |
270 | { |
271 | test_null_unique_ptr<X>( boost::movelib::unique_ptr<X>(), boost::movelib::unique_ptr<X>() ); | |
272 | test_null_unique_ptr<X const>( boost::movelib::unique_ptr<X>(), boost::movelib::unique_ptr<X>() ); | |
273 | test_null_unique_ptr<void>( boost::movelib::unique_ptr<X>(), boost::movelib::unique_ptr<X>() ); | |
274 | test_null_unique_ptr<void const>( boost::movelib::unique_ptr<X>(), boost::movelib::unique_ptr<X>() ); | |
275 | } | |
276 | ||
277 | { | |
278 | test_null_unique_ptr<Y>( boost::movelib::unique_ptr<Y, YD>( 0, YD() ), boost::movelib::unique_ptr<Y, YD>( 0, YD() ) ); | |
279 | test_null_unique_ptr<Y const>( boost::movelib::unique_ptr<Y, YD>( 0, YD() ), boost::movelib::unique_ptr<Y, YD>( 0, YD() ) ); | |
280 | test_null_unique_ptr<void>( boost::movelib::unique_ptr<Y, YD>( 0, YD() ), boost::movelib::unique_ptr<Y, YD>( 0, YD() ) ); | |
281 | test_null_unique_ptr<void const>( boost::movelib::unique_ptr<Y, YD>( 0, YD() ), boost::movelib::unique_ptr<Y, YD>( 0, YD() ) ); | |
282 | } | |
283 | ||
284 | { | |
285 | YD yd; | |
286 | ||
287 | test_null_unique_ptr<Y>( boost::movelib::unique_ptr<Y, YD&>( 0, yd ), boost::movelib::unique_ptr<Y, YD&>( 0, yd ) ); | |
288 | test_null_unique_ptr<Y const>( boost::movelib::unique_ptr<Y, YD&>( 0, yd ), boost::movelib::unique_ptr<Y, YD&>( 0, yd ) ); | |
289 | test_null_unique_ptr<void>( boost::movelib::unique_ptr<Y, YD&>( 0, yd ), boost::movelib::unique_ptr<Y, YD&>( 0, yd ) ); | |
290 | test_null_unique_ptr<void const>( boost::movelib::unique_ptr<Y, YD&>( 0, yd ), boost::movelib::unique_ptr<Y, YD&>( 0, yd ) ); | |
291 | } | |
292 | ||
7c673cae FG |
293 | return boost::report_errors(); |
294 | } |