1 | // make_local_shared_test.cpp |
2 | // |
3 | // Copyright 2007-2009, 2017 Peter Dimov |
4 | // |
5 | // Distributed under the Boost Software License, Version 1.0. |
6 | // See accompanying file LICENSE_1_0.txt or copy at |
7 | // http://www.boost.org/LICENSE_1_0.txt |
8 | |
9 | #include <boost/config.hpp> |
10 | |
11 | #if defined( BOOST_NO_CXX11_RVALUE_REFERENCES ) || defined( BOOST_NO_CXX11_VARIADIC_TEMPLATES ) |
12 | |
13 | int main() |
14 | { |
15 | } |
16 | |
17 | #else |
18 | |
19 | #include <boost/core/lightweight_test.hpp> |
20 | #include <boost/smart_ptr/make_local_shared.hpp> |
21 | #include <boost/smart_ptr/local_shared_ptr.hpp> |
22 | #include <boost/weak_ptr.hpp> |
23 | #include <cstddef> |
24 | |
25 | class X |
26 | { |
27 | private: |
28 | |
29 | X( X const & ); |
30 | X & operator=( X const & ); |
31 | |
32 | void * operator new( std::size_t n ) |
33 | { |
34 | // lack of this definition causes link errors on Comeau C++ |
35 | BOOST_ERROR( "private X::new called" ); |
36 | return ::operator new( n ); |
37 | } |
38 | |
39 | void operator delete( void * p ) |
40 | { |
41 | // lack of this definition causes link errors on MSVC |
42 | BOOST_ERROR( "private X::delete called" ); |
43 | ::operator delete( p ); |
44 | } |
45 | |
46 | public: |
47 | |
48 | static int instances; |
49 | |
50 | int v; |
51 | |
52 | explicit X( int a1 = 0, int a2 = 0, int a3 = 0, int a4 = 0, int a5 = 0, int a6 = 0, int a7 = 0, int a8 = 0, int a9 = 0 ): v( a1+a2+a3+a4+a5+a6+a7+a8+a9 ) |
53 | { |
54 | ++instances; |
55 | } |
56 | |
57 | ~X() |
58 | { |
59 | --instances; |
60 | } |
61 | }; |
62 | |
63 | int X::instances = 0; |
64 | |
65 | template<class T> static long use_count( boost::local_shared_ptr<T> const & p ) |
66 | { |
67 | return boost::shared_ptr<T>( p ).use_count() - 1; |
68 | } |
69 | |
70 | int main() |
71 | { |
72 | { |
73 | boost::local_shared_ptr< int > pi = boost::make_local_shared< int >(); |
74 | |
75 | BOOST_TEST( pi.get() != 0 ); |
76 | BOOST_TEST( pi.local_use_count() == 1 ); |
77 | BOOST_TEST( use_count( pi ) == 1 ); |
78 | |
79 | BOOST_TEST( *pi == 0 ); |
80 | } |
81 | |
82 | { |
83 | boost::local_shared_ptr< int > pi = boost::make_local_shared_noinit< int >(); |
84 | |
85 | BOOST_TEST( pi.get() != 0 ); |
86 | } |
87 | |
88 | { |
89 | boost::local_shared_ptr< int > pi = boost::make_local_shared< int >( args: 5 ); |
90 | |
91 | BOOST_TEST( pi.get() != 0 ); |
92 | BOOST_TEST( pi.local_use_count() == 1 ); |
93 | BOOST_TEST( use_count( pi ) == 1 ); |
94 | |
95 | BOOST_TEST( *pi == 5 ); |
96 | } |
97 | |
98 | BOOST_TEST( X::instances == 0 ); |
99 | |
100 | { |
101 | boost::local_shared_ptr< X > pi = boost::make_local_shared< X >(); |
102 | boost::weak_ptr<X> wp( pi ); |
103 | |
104 | BOOST_TEST( X::instances == 1 ); |
105 | BOOST_TEST( pi.get() != 0 ); |
106 | BOOST_TEST( pi.local_use_count() == 1 ); |
107 | BOOST_TEST( use_count( pi ) == 1 ); |
108 | BOOST_TEST( pi->v == 0 ); |
109 | |
110 | pi.reset(); |
111 | |
112 | BOOST_TEST( X::instances == 0 ); |
113 | } |
114 | |
115 | { |
116 | boost::local_shared_ptr< X > pi = boost::make_local_shared_noinit< X >(); |
117 | boost::weak_ptr<X> wp( pi ); |
118 | |
119 | BOOST_TEST( X::instances == 1 ); |
120 | BOOST_TEST( pi.get() != 0 ); |
121 | BOOST_TEST( pi.local_use_count() == 1 ); |
122 | BOOST_TEST( use_count( pi ) == 1 ); |
123 | BOOST_TEST( pi->v == 0 ); |
124 | |
125 | pi.reset(); |
126 | |
127 | BOOST_TEST( X::instances == 0 ); |
128 | } |
129 | |
130 | { |
131 | boost::local_shared_ptr< X > pi = boost::make_local_shared< X >( args: 1 ); |
132 | boost::weak_ptr<X> wp( pi ); |
133 | |
134 | BOOST_TEST( X::instances == 1 ); |
135 | BOOST_TEST( pi.get() != 0 ); |
136 | BOOST_TEST( pi.local_use_count() == 1 ); |
137 | BOOST_TEST( use_count( pi ) == 1 ); |
138 | BOOST_TEST( pi->v == 1 ); |
139 | |
140 | pi.reset(); |
141 | |
142 | BOOST_TEST( X::instances == 0 ); |
143 | } |
144 | |
145 | { |
146 | boost::local_shared_ptr< X > pi = boost::make_local_shared< X >( args: 1, args: 2 ); |
147 | boost::weak_ptr<X> wp( pi ); |
148 | |
149 | BOOST_TEST( X::instances == 1 ); |
150 | BOOST_TEST( pi.get() != 0 ); |
151 | BOOST_TEST( pi.local_use_count() == 1 ); |
152 | BOOST_TEST( use_count( pi ) == 1 ); |
153 | BOOST_TEST( pi->v == 1+2 ); |
154 | |
155 | pi.reset(); |
156 | |
157 | BOOST_TEST( X::instances == 0 ); |
158 | } |
159 | |
160 | { |
161 | boost::local_shared_ptr< X > pi = boost::make_local_shared< X >( args: 1, args: 2, args: 3 ); |
162 | boost::weak_ptr<X> wp( pi ); |
163 | |
164 | BOOST_TEST( X::instances == 1 ); |
165 | BOOST_TEST( pi.get() != 0 ); |
166 | BOOST_TEST( pi.local_use_count() == 1 ); |
167 | BOOST_TEST( use_count( pi ) == 1 ); |
168 | BOOST_TEST( pi->v == 1+2+3 ); |
169 | |
170 | pi.reset(); |
171 | |
172 | BOOST_TEST( X::instances == 0 ); |
173 | } |
174 | |
175 | { |
176 | boost::local_shared_ptr< X > pi = boost::make_local_shared< X >( args: 1, args: 2, args: 3, args: 4 ); |
177 | boost::weak_ptr<X> wp( pi ); |
178 | |
179 | BOOST_TEST( X::instances == 1 ); |
180 | BOOST_TEST( pi.get() != 0 ); |
181 | BOOST_TEST( pi.local_use_count() == 1 ); |
182 | BOOST_TEST( use_count( pi ) == 1 ); |
183 | BOOST_TEST( pi->v == 1+2+3+4 ); |
184 | |
185 | pi.reset(); |
186 | |
187 | BOOST_TEST( X::instances == 0 ); |
188 | } |
189 | |
190 | { |
191 | boost::local_shared_ptr< X > pi = boost::make_local_shared< X >( args: 1, args: 2, args: 3, args: 4, args: 5 ); |
192 | boost::weak_ptr<X> wp( pi ); |
193 | |
194 | BOOST_TEST( X::instances == 1 ); |
195 | BOOST_TEST( pi.get() != 0 ); |
196 | BOOST_TEST( pi.local_use_count() == 1 ); |
197 | BOOST_TEST( use_count( pi ) == 1 ); |
198 | BOOST_TEST( pi->v == 1+2+3+4+5 ); |
199 | |
200 | pi.reset(); |
201 | |
202 | BOOST_TEST( X::instances == 0 ); |
203 | } |
204 | |
205 | { |
206 | boost::local_shared_ptr< X > pi = boost::make_local_shared< X >( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6 ); |
207 | boost::weak_ptr<X> wp( pi ); |
208 | |
209 | BOOST_TEST( X::instances == 1 ); |
210 | BOOST_TEST( pi.get() != 0 ); |
211 | BOOST_TEST( pi.local_use_count() == 1 ); |
212 | BOOST_TEST( use_count( pi ) == 1 ); |
213 | BOOST_TEST( pi->v == 1+2+3+4+5+6 ); |
214 | |
215 | pi.reset(); |
216 | |
217 | BOOST_TEST( X::instances == 0 ); |
218 | } |
219 | |
220 | { |
221 | boost::local_shared_ptr< X > pi = boost::make_local_shared< X >( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6, args: 7 ); |
222 | boost::weak_ptr<X> wp( pi ); |
223 | |
224 | BOOST_TEST( X::instances == 1 ); |
225 | BOOST_TEST( pi.get() != 0 ); |
226 | BOOST_TEST( pi.local_use_count() == 1 ); |
227 | BOOST_TEST( use_count( pi ) == 1 ); |
228 | BOOST_TEST( pi->v == 1+2+3+4+5+6+7 ); |
229 | |
230 | pi.reset(); |
231 | |
232 | BOOST_TEST( X::instances == 0 ); |
233 | } |
234 | |
235 | { |
236 | boost::local_shared_ptr< X > pi = boost::make_local_shared< X >( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6, args: 7, args: 8 ); |
237 | boost::weak_ptr<X> wp( pi ); |
238 | |
239 | BOOST_TEST( X::instances == 1 ); |
240 | BOOST_TEST( pi.get() != 0 ); |
241 | BOOST_TEST( pi.local_use_count() == 1 ); |
242 | BOOST_TEST( use_count( pi ) == 1 ); |
243 | BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8 ); |
244 | |
245 | pi.reset(); |
246 | |
247 | BOOST_TEST( X::instances == 0 ); |
248 | } |
249 | |
250 | { |
251 | boost::local_shared_ptr< X > pi = boost::make_local_shared< X >( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6, args: 7, args: 8, args: 9 ); |
252 | boost::weak_ptr<X> wp( pi ); |
253 | |
254 | BOOST_TEST( X::instances == 1 ); |
255 | BOOST_TEST( pi.get() != 0 ); |
256 | BOOST_TEST( pi.local_use_count() == 1 ); |
257 | BOOST_TEST( use_count( pi ) == 1 ); |
258 | BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8+9 ); |
259 | |
260 | pi.reset(); |
261 | |
262 | BOOST_TEST( X::instances == 0 ); |
263 | } |
264 | |
265 | return boost::report_errors(); |
266 | } |
267 | |
268 | #endif |
269 | |