1 | // make_shared_test.cpp |
2 | // |
3 | // Copyright 2007-2009 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/core/lightweight_test.hpp> |
10 | #include <boost/make_shared.hpp> |
11 | #include <boost/shared_ptr.hpp> |
12 | #include <boost/weak_ptr.hpp> |
13 | #include <cstddef> |
14 | |
15 | class X |
16 | { |
17 | private: |
18 | |
19 | X( X const & ); |
20 | X & operator=( X const & ); |
21 | |
22 | void * operator new( std::size_t n ) |
23 | { |
24 | // lack of this definition causes link errors on Comeau C++ |
25 | BOOST_ERROR( "private X::new called" ); |
26 | return ::operator new( n ); |
27 | } |
28 | |
29 | void operator delete( void * p ) |
30 | { |
31 | // lack of this definition causes link errors on MSVC |
32 | BOOST_ERROR( "private X::delete called" ); |
33 | ::operator delete( p ); |
34 | } |
35 | |
36 | public: |
37 | |
38 | static int instances; |
39 | |
40 | int v; |
41 | |
42 | 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 ) |
43 | { |
44 | ++instances; |
45 | } |
46 | |
47 | ~X() |
48 | { |
49 | --instances; |
50 | } |
51 | }; |
52 | |
53 | int X::instances = 0; |
54 | |
55 | int main() |
56 | { |
57 | { |
58 | boost::shared_ptr< int > pi = boost::make_shared< int >(); |
59 | |
60 | BOOST_TEST( pi.get() != 0 ); |
61 | BOOST_TEST( pi.use_count() == 1 ); |
62 | |
63 | BOOST_TEST( *pi == 0 ); |
64 | } |
65 | |
66 | { |
67 | boost::shared_ptr< int > pi = boost::make_shared_noinit< int >(); |
68 | |
69 | BOOST_TEST( pi.get() != 0 ); |
70 | BOOST_TEST( pi.use_count() == 1 ); |
71 | } |
72 | |
73 | { |
74 | boost::shared_ptr< int > pi = boost::make_shared< int >( args: 5 ); |
75 | |
76 | BOOST_TEST( pi.get() != 0 ); |
77 | BOOST_TEST( pi.use_count() == 1 ); |
78 | |
79 | BOOST_TEST( *pi == 5 ); |
80 | } |
81 | |
82 | BOOST_TEST( X::instances == 0 ); |
83 | |
84 | { |
85 | boost::shared_ptr< X > pi = boost::make_shared< X >(); |
86 | boost::weak_ptr<X> wp( pi ); |
87 | |
88 | BOOST_TEST( X::instances == 1 ); |
89 | BOOST_TEST( pi.get() != 0 ); |
90 | BOOST_TEST( pi.use_count() == 1 ); |
91 | BOOST_TEST( pi->v == 0 ); |
92 | |
93 | pi.reset(); |
94 | |
95 | BOOST_TEST( X::instances == 0 ); |
96 | } |
97 | |
98 | { |
99 | boost::shared_ptr< X > pi = boost::make_shared_noinit< X >(); |
100 | boost::weak_ptr<X> wp( pi ); |
101 | |
102 | BOOST_TEST( X::instances == 1 ); |
103 | BOOST_TEST( pi.get() != 0 ); |
104 | BOOST_TEST( pi.use_count() == 1 ); |
105 | BOOST_TEST( pi->v == 0 ); |
106 | |
107 | pi.reset(); |
108 | |
109 | BOOST_TEST( X::instances == 0 ); |
110 | } |
111 | |
112 | { |
113 | boost::shared_ptr< X > pi = boost::make_shared< X >( args: 1 ); |
114 | boost::weak_ptr<X> wp( pi ); |
115 | |
116 | BOOST_TEST( X::instances == 1 ); |
117 | BOOST_TEST( pi.get() != 0 ); |
118 | BOOST_TEST( pi.use_count() == 1 ); |
119 | BOOST_TEST( pi->v == 1 ); |
120 | |
121 | pi.reset(); |
122 | |
123 | BOOST_TEST( X::instances == 0 ); |
124 | } |
125 | |
126 | { |
127 | boost::shared_ptr< X > pi = boost::make_shared< X >( args: 1, args: 2 ); |
128 | boost::weak_ptr<X> wp( pi ); |
129 | |
130 | BOOST_TEST( X::instances == 1 ); |
131 | BOOST_TEST( pi.get() != 0 ); |
132 | BOOST_TEST( pi.use_count() == 1 ); |
133 | BOOST_TEST( pi->v == 1+2 ); |
134 | |
135 | pi.reset(); |
136 | |
137 | BOOST_TEST( X::instances == 0 ); |
138 | } |
139 | |
140 | { |
141 | boost::shared_ptr< X > pi = boost::make_shared< X >( args: 1, args: 2, args: 3 ); |
142 | boost::weak_ptr<X> wp( pi ); |
143 | |
144 | BOOST_TEST( X::instances == 1 ); |
145 | BOOST_TEST( pi.get() != 0 ); |
146 | BOOST_TEST( pi.use_count() == 1 ); |
147 | BOOST_TEST( pi->v == 1+2+3 ); |
148 | |
149 | pi.reset(); |
150 | |
151 | BOOST_TEST( X::instances == 0 ); |
152 | } |
153 | |
154 | { |
155 | boost::shared_ptr< X > pi = boost::make_shared< X >( args: 1, args: 2, args: 3, args: 4 ); |
156 | boost::weak_ptr<X> wp( pi ); |
157 | |
158 | BOOST_TEST( X::instances == 1 ); |
159 | BOOST_TEST( pi.get() != 0 ); |
160 | BOOST_TEST( pi.use_count() == 1 ); |
161 | BOOST_TEST( pi->v == 1+2+3+4 ); |
162 | |
163 | pi.reset(); |
164 | |
165 | BOOST_TEST( X::instances == 0 ); |
166 | } |
167 | |
168 | { |
169 | boost::shared_ptr< X > pi = boost::make_shared< X >( args: 1, args: 2, args: 3, args: 4, args: 5 ); |
170 | boost::weak_ptr<X> wp( pi ); |
171 | |
172 | BOOST_TEST( X::instances == 1 ); |
173 | BOOST_TEST( pi.get() != 0 ); |
174 | BOOST_TEST( pi.use_count() == 1 ); |
175 | BOOST_TEST( pi->v == 1+2+3+4+5 ); |
176 | |
177 | pi.reset(); |
178 | |
179 | BOOST_TEST( X::instances == 0 ); |
180 | } |
181 | |
182 | { |
183 | boost::shared_ptr< X > pi = boost::make_shared< X >( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6 ); |
184 | boost::weak_ptr<X> wp( pi ); |
185 | |
186 | BOOST_TEST( X::instances == 1 ); |
187 | BOOST_TEST( pi.get() != 0 ); |
188 | BOOST_TEST( pi.use_count() == 1 ); |
189 | BOOST_TEST( pi->v == 1+2+3+4+5+6 ); |
190 | |
191 | pi.reset(); |
192 | |
193 | BOOST_TEST( X::instances == 0 ); |
194 | } |
195 | |
196 | { |
197 | boost::shared_ptr< X > pi = boost::make_shared< X >( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6, args: 7 ); |
198 | boost::weak_ptr<X> wp( pi ); |
199 | |
200 | BOOST_TEST( X::instances == 1 ); |
201 | BOOST_TEST( pi.get() != 0 ); |
202 | BOOST_TEST( pi.use_count() == 1 ); |
203 | BOOST_TEST( pi->v == 1+2+3+4+5+6+7 ); |
204 | |
205 | pi.reset(); |
206 | |
207 | BOOST_TEST( X::instances == 0 ); |
208 | } |
209 | |
210 | { |
211 | boost::shared_ptr< X > pi = boost::make_shared< X >( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6, args: 7, args: 8 ); |
212 | boost::weak_ptr<X> wp( pi ); |
213 | |
214 | BOOST_TEST( X::instances == 1 ); |
215 | BOOST_TEST( pi.get() != 0 ); |
216 | BOOST_TEST( pi.use_count() == 1 ); |
217 | BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8 ); |
218 | |
219 | pi.reset(); |
220 | |
221 | BOOST_TEST( X::instances == 0 ); |
222 | } |
223 | |
224 | { |
225 | boost::shared_ptr< X > pi = boost::make_shared< X >( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6, args: 7, args: 8, args: 9 ); |
226 | boost::weak_ptr<X> wp( pi ); |
227 | |
228 | BOOST_TEST( X::instances == 1 ); |
229 | BOOST_TEST( pi.get() != 0 ); |
230 | BOOST_TEST( pi.use_count() == 1 ); |
231 | BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8+9 ); |
232 | |
233 | pi.reset(); |
234 | |
235 | BOOST_TEST( X::instances == 0 ); |
236 | } |
237 | |
238 | return boost::report_errors(); |
239 | } |
240 | |