1 | // make_shared_const_test.cpp |
2 | // |
3 | // Copyright 2007-2009, 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/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 const> pi = boost::make_shared<int const>(); |
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 const> pi = boost::make_shared<int const>( args: 5 ); |
68 | |
69 | BOOST_TEST( pi.get() != 0 ); |
70 | BOOST_TEST( pi.use_count() == 1 ); |
71 | |
72 | BOOST_TEST( *pi == 5 ); |
73 | } |
74 | |
75 | BOOST_TEST( X::instances == 0 ); |
76 | |
77 | { |
78 | boost::shared_ptr<X const> pi = boost::make_shared<X const>(); |
79 | boost::weak_ptr<X const> wp( pi ); |
80 | |
81 | BOOST_TEST( X::instances == 1 ); |
82 | BOOST_TEST( pi.get() != 0 ); |
83 | BOOST_TEST( pi.use_count() == 1 ); |
84 | BOOST_TEST( pi->v == 0 ); |
85 | |
86 | pi.reset(); |
87 | |
88 | BOOST_TEST( X::instances == 0 ); |
89 | } |
90 | |
91 | { |
92 | boost::shared_ptr<X const> pi = boost::make_shared_noinit<X const>(); |
93 | boost::weak_ptr<X const> wp( pi ); |
94 | |
95 | BOOST_TEST( X::instances == 1 ); |
96 | BOOST_TEST( pi.get() != 0 ); |
97 | BOOST_TEST( pi.use_count() == 1 ); |
98 | BOOST_TEST( pi->v == 0 ); |
99 | |
100 | pi.reset(); |
101 | |
102 | BOOST_TEST( X::instances == 0 ); |
103 | } |
104 | |
105 | { |
106 | boost::shared_ptr<X const> pi = boost::make_shared<X const>( args: 1 ); |
107 | boost::weak_ptr<X const> wp( pi ); |
108 | |
109 | BOOST_TEST( X::instances == 1 ); |
110 | BOOST_TEST( pi.get() != 0 ); |
111 | BOOST_TEST( pi.use_count() == 1 ); |
112 | BOOST_TEST( pi->v == 1 ); |
113 | |
114 | pi.reset(); |
115 | |
116 | BOOST_TEST( X::instances == 0 ); |
117 | } |
118 | |
119 | { |
120 | boost::shared_ptr<X const> pi = boost::make_shared<X const>( args: 1, args: 2 ); |
121 | boost::weak_ptr<X const> wp( pi ); |
122 | |
123 | BOOST_TEST( X::instances == 1 ); |
124 | BOOST_TEST( pi.get() != 0 ); |
125 | BOOST_TEST( pi.use_count() == 1 ); |
126 | BOOST_TEST( pi->v == 1+2 ); |
127 | |
128 | pi.reset(); |
129 | |
130 | BOOST_TEST( X::instances == 0 ); |
131 | } |
132 | |
133 | { |
134 | boost::shared_ptr<X const> pi = boost::make_shared<X const>( args: 1, args: 2, args: 3 ); |
135 | boost::weak_ptr<X const> wp( pi ); |
136 | |
137 | BOOST_TEST( X::instances == 1 ); |
138 | BOOST_TEST( pi.get() != 0 ); |
139 | BOOST_TEST( pi.use_count() == 1 ); |
140 | BOOST_TEST( pi->v == 1+2+3 ); |
141 | |
142 | pi.reset(); |
143 | |
144 | BOOST_TEST( X::instances == 0 ); |
145 | } |
146 | |
147 | { |
148 | boost::shared_ptr<X const> pi = boost::make_shared<X const>( args: 1, args: 2, args: 3, args: 4 ); |
149 | boost::weak_ptr<X const> wp( pi ); |
150 | |
151 | BOOST_TEST( X::instances == 1 ); |
152 | BOOST_TEST( pi.get() != 0 ); |
153 | BOOST_TEST( pi.use_count() == 1 ); |
154 | BOOST_TEST( pi->v == 1+2+3+4 ); |
155 | |
156 | pi.reset(); |
157 | |
158 | BOOST_TEST( X::instances == 0 ); |
159 | } |
160 | |
161 | { |
162 | boost::shared_ptr<X const> pi = boost::make_shared<X const>( args: 1, args: 2, args: 3, args: 4, args: 5 ); |
163 | boost::weak_ptr<X const> wp( pi ); |
164 | |
165 | BOOST_TEST( X::instances == 1 ); |
166 | BOOST_TEST( pi.get() != 0 ); |
167 | BOOST_TEST( pi.use_count() == 1 ); |
168 | BOOST_TEST( pi->v == 1+2+3+4+5 ); |
169 | |
170 | pi.reset(); |
171 | |
172 | BOOST_TEST( X::instances == 0 ); |
173 | } |
174 | |
175 | { |
176 | boost::shared_ptr<X const> pi = boost::make_shared<X const>( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6 ); |
177 | boost::weak_ptr<X const> wp( pi ); |
178 | |
179 | BOOST_TEST( X::instances == 1 ); |
180 | BOOST_TEST( pi.get() != 0 ); |
181 | BOOST_TEST( pi.use_count() == 1 ); |
182 | BOOST_TEST( pi->v == 1+2+3+4+5+6 ); |
183 | |
184 | pi.reset(); |
185 | |
186 | BOOST_TEST( X::instances == 0 ); |
187 | } |
188 | |
189 | { |
190 | boost::shared_ptr<X const> pi = boost::make_shared<X const>( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6, args: 7 ); |
191 | boost::weak_ptr<X const> wp( pi ); |
192 | |
193 | BOOST_TEST( X::instances == 1 ); |
194 | BOOST_TEST( pi.get() != 0 ); |
195 | BOOST_TEST( pi.use_count() == 1 ); |
196 | BOOST_TEST( pi->v == 1+2+3+4+5+6+7 ); |
197 | |
198 | pi.reset(); |
199 | |
200 | BOOST_TEST( X::instances == 0 ); |
201 | } |
202 | |
203 | { |
204 | boost::shared_ptr<X const> pi = boost::make_shared<X const>( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6, args: 7, args: 8 ); |
205 | boost::weak_ptr<X const> wp( pi ); |
206 | |
207 | BOOST_TEST( X::instances == 1 ); |
208 | BOOST_TEST( pi.get() != 0 ); |
209 | BOOST_TEST( pi.use_count() == 1 ); |
210 | BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8 ); |
211 | |
212 | pi.reset(); |
213 | |
214 | BOOST_TEST( X::instances == 0 ); |
215 | } |
216 | |
217 | { |
218 | boost::shared_ptr<X const> pi = boost::make_shared<X const>( args: 1, args: 2, args: 3, args: 4, args: 5, args: 6, args: 7, args: 8, args: 9 ); |
219 | boost::weak_ptr<X const> wp( pi ); |
220 | |
221 | BOOST_TEST( X::instances == 1 ); |
222 | BOOST_TEST( pi.get() != 0 ); |
223 | BOOST_TEST( pi.use_count() == 1 ); |
224 | BOOST_TEST( pi->v == 1+2+3+4+5+6+7+8+9 ); |
225 | |
226 | pi.reset(); |
227 | |
228 | BOOST_TEST( X::instances == 0 ); |
229 | } |
230 | |
231 | return boost::report_errors(); |
232 | } |
233 | |