1 | // make_local_shared_const_test.cpp |
2 | // |
3 | // Copyright 2007-2009, 2017, 2018 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 const> pi = boost::make_local_shared<int const>(); |
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 const> pi = boost::make_local_shared<int const>( args: 5 ); |
84 | |
85 | BOOST_TEST( pi.get() != 0 ); |
86 | BOOST_TEST( pi.local_use_count() == 1 ); |
87 | BOOST_TEST( use_count( pi ) == 1 ); |
88 | |
89 | BOOST_TEST( *pi == 5 ); |
90 | } |
91 | |
92 | BOOST_TEST( X::instances == 0 ); |
93 | |
94 | { |
95 | boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>(); |
96 | boost::weak_ptr<X const> wp( pi ); |
97 | |
98 | BOOST_TEST( X::instances == 1 ); |
99 | BOOST_TEST( pi.get() != 0 ); |
100 | BOOST_TEST( pi.local_use_count() == 1 ); |
101 | BOOST_TEST( use_count( pi ) == 1 ); |
102 | BOOST_TEST( pi->v == 0 ); |
103 | |
104 | pi.reset(); |
105 | |
106 | BOOST_TEST( X::instances == 0 ); |
107 | } |
108 | |
109 | { |
110 | boost::local_shared_ptr<X const> pi = boost::make_local_shared_noinit<X const>(); |
111 | boost::weak_ptr<X const> wp( pi ); |
112 | |
113 | BOOST_TEST( X::instances == 1 ); |
114 | BOOST_TEST( pi.get() != 0 ); |
115 | BOOST_TEST( pi.local_use_count() == 1 ); |
116 | BOOST_TEST( use_count( pi ) == 1 ); |
117 | BOOST_TEST( pi->v == 0 ); |
118 | |
119 | pi.reset(); |
120 | |
121 | BOOST_TEST( X::instances == 0 ); |
122 | } |
123 | |
124 | { |
125 | boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( args: 1 ); |
126 | boost::weak_ptr<X const> wp( pi ); |
127 | |
128 | BOOST_TEST( X::instances == 1 ); |
129 | BOOST_TEST( pi.get() != 0 ); |
130 | BOOST_TEST( pi.local_use_count() == 1 ); |
131 | BOOST_TEST( use_count( pi ) == 1 ); |
132 | BOOST_TEST( pi->v == 1 ); |
133 | |
134 | pi.reset(); |
135 | |
136 | BOOST_TEST( X::instances == 0 ); |
137 | } |
138 | |
139 | { |
140 | boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( args: 1, args: 2 ); |
141 | boost::weak_ptr<X const> wp( pi ); |
142 | |
143 | BOOST_TEST( X::instances == 1 ); |
144 | BOOST_TEST( pi.get() != 0 ); |
145 | BOOST_TEST( pi.local_use_count() == 1 ); |
146 | BOOST_TEST( use_count( pi ) == 1 ); |
147 | BOOST_TEST( pi->v == 1+2 ); |
148 | |
149 | pi.reset(); |
150 | |
151 | BOOST_TEST( X::instances == 0 ); |
152 | } |
153 | |
154 | { |
155 | boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( args: 1, args: 2, args: 3 ); |
156 | boost::weak_ptr<X const> wp( pi ); |
157 | |
158 | BOOST_TEST( X::instances == 1 ); |
159 | BOOST_TEST( pi.get() != 0 ); |
160 | BOOST_TEST( pi.local_use_count() == 1 ); |
161 | BOOST_TEST( use_count( pi ) == 1 ); |
162 | BOOST_TEST( pi->v == 1+2+3 ); |
163 | |
164 | pi.reset(); |
165 | |
166 | BOOST_TEST( X::instances == 0 ); |
167 | } |
168 | |
169 | { |
170 | boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( args: 1, args: 2, args: 3, args: 4 ); |
171 | boost::weak_ptr<X const> wp( pi ); |
172 | |
173 | BOOST_TEST( X::instances == 1 ); |
174 | BOOST_TEST( pi.get() != 0 ); |
175 | BOOST_TEST( pi.local_use_count() == 1 ); |
176 | BOOST_TEST( use_count( pi ) == 1 ); |
177 | BOOST_TEST( pi->v == 1+2+3+4 ); |
178 | |
179 | pi.reset(); |
180 | |
181 | BOOST_TEST( X::instances == 0 ); |
182 | } |
183 | |
184 | { |
185 | boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( args: 1, args: 2, args: 3, args: 4, args: 5 ); |
186 | boost::weak_ptr<X const> wp( pi ); |
187 | |
188 | BOOST_TEST( X::instances == 1 ); |
189 | BOOST_TEST( pi.get() != 0 ); |
190 | BOOST_TEST( pi.local_use_count() == 1 ); |
191 | BOOST_TEST( use_count( pi ) == 1 ); |
192 | BOOST_TEST( pi->v == 1+2+3+4+5 ); |
193 | |
194 | pi.reset(); |
195 | |
196 | BOOST_TEST( X::instances == 0 ); |
197 | } |
198 | |
199 | { |
200 | boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6 ); |
201 | boost::weak_ptr<X const> wp( pi ); |
202 | |
203 | BOOST_TEST( X::instances == 1 ); |
204 | BOOST_TEST( pi.get() != 0 ); |
205 | BOOST_TEST( pi.local_use_count() == 1 ); |
206 | BOOST_TEST( use_count( pi ) == 1 ); |
207 | BOOST_TEST( pi->v == 1+2+3+4+5+6 ); |
208 | |
209 | pi.reset(); |
210 | |
211 | BOOST_TEST( X::instances == 0 ); |
212 | } |
213 | |
214 | { |
215 | boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6, args: 7 ); |
216 | boost::weak_ptr<X const> wp( pi ); |
217 | |
218 | BOOST_TEST( X::instances == 1 ); |
219 | BOOST_TEST( pi.get() != 0 ); |
220 | BOOST_TEST( pi.local_use_count() == 1 ); |
221 | BOOST_TEST( use_count( pi ) == 1 ); |
222 | BOOST_TEST( pi->v == 1+2+3+4+5+6+7 ); |
223 | |
224 | pi.reset(); |
225 | |
226 | BOOST_TEST( X::instances == 0 ); |
227 | } |
228 | |
229 | { |
230 | boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6, args: 7, args: 8 ); |
231 | boost::weak_ptr<X const> wp( pi ); |
232 | |
233 | BOOST_TEST( X::instances == 1 ); |
234 | BOOST_TEST( pi.get() != 0 ); |
235 | BOOST_TEST( pi.local_use_count() == 1 ); |
236 | BOOST_TEST( use_count( pi ) == 1 ); |
237 | BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8 ); |
238 | |
239 | pi.reset(); |
240 | |
241 | BOOST_TEST( X::instances == 0 ); |
242 | } |
243 | |
244 | { |
245 | boost::local_shared_ptr<X const> pi = boost::make_local_shared<X const>( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6, args: 7, args: 8, args: 9 ); |
246 | boost::weak_ptr<X const> wp( pi ); |
247 | |
248 | BOOST_TEST( X::instances == 1 ); |
249 | BOOST_TEST( pi.get() != 0 ); |
250 | BOOST_TEST( pi.local_use_count() == 1 ); |
251 | BOOST_TEST( use_count( pi ) == 1 ); |
252 | BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8+9 ); |
253 | |
254 | pi.reset(); |
255 | |
256 | BOOST_TEST( X::instances == 0 ); |
257 | } |
258 | |
259 | return boost::report_errors(); |
260 | } |
261 | |
262 | #endif |
263 | |