1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
|
/*
Copyright 2012-2015 Glen Joseph Fernandes
(glenjofe@gmail.com)
Distributed under the Boost Software License, Version 1.0.
(http://www.boost.org/LICENSE_1_0.txt)
*/
#include <boost/config.hpp>
#if !defined(BOOST_NO_CXX11_ALLOCATOR)
#include <boost/core/lightweight_test.hpp>
#include <boost/smart_ptr/make_shared.hpp>
struct allow { };
template<class T = void>
struct creator {
typedef T value_type;
template<class U>
struct rebind {
typedef creator<U> other;
};
creator() { }
template<class U>
creator(const creator<U>&) { }
T* allocate(std::size_t size) {
return static_cast<T*>(::operator new(sizeof(T) * size));
}
void deallocate(T* ptr, std::size_t) {
::operator delete(ptr);
}
template<class U>
void construct(U* ptr) {
::new(static_cast<void*>(ptr)) U(allow());
}
template<class U>
void destroy(U* ptr) {
ptr->~U();
}
};
template<class T, class U>
inline bool
operator==(const creator<T>&, const creator<U>&)
{
return true;
}
template<class T, class U>
inline bool
operator!=(const creator<T>&, const creator<U>&)
{
return false;
}
class type {
public:
static unsigned instances;
explicit type(allow) {
++instances;
}
~type() {
--instances;
}
private:
type(const type&);
type& operator=(const type&);
};
unsigned type::instances = 0;
int main()
{
{
boost::shared_ptr<type[]> result =
boost::allocate_shared<type[]>(creator<type>(), 3);
BOOST_TEST(result.get() != 0);
BOOST_TEST(result.use_count() == 1);
BOOST_TEST(type::instances == 3);
result.reset();
BOOST_TEST(type::instances == 0);
}
{
boost::shared_ptr<type[3]> result =
boost::allocate_shared<type[3]>(creator<type>());
BOOST_TEST(result.get() != 0);
BOOST_TEST(result.use_count() == 1);
BOOST_TEST(type::instances == 3);
result.reset();
BOOST_TEST(type::instances == 0);
}
{
boost::shared_ptr<type[][2]> result =
boost::allocate_shared<type[][2]>(creator<>(), 2);
BOOST_TEST(result.get() != 0);
BOOST_TEST(result.use_count() == 1);
BOOST_TEST(type::instances == 4);
result.reset();
BOOST_TEST(type::instances == 0);
}
{
boost::shared_ptr<type[2][2]> result =
boost::allocate_shared<type[2][2]>(creator<>());
BOOST_TEST(result.get() != 0);
BOOST_TEST(result.use_count() == 1);
BOOST_TEST(type::instances == 4);
result.reset();
BOOST_TEST(type::instances == 0);
}
{
boost::shared_ptr<const type[]> result =
boost::allocate_shared<const type[]>(creator<>(), 3);
BOOST_TEST(result.get() != 0);
BOOST_TEST(result.use_count() == 1);
BOOST_TEST(type::instances == 3);
result.reset();
BOOST_TEST(type::instances == 0);
}
{
boost::shared_ptr<const type[3]> result =
boost::allocate_shared<const type[3]>(creator<>());
BOOST_TEST(result.get() != 0);
BOOST_TEST(result.use_count() == 1);
BOOST_TEST(type::instances == 3);
result.reset();
BOOST_TEST(type::instances == 0);
}
{
boost::shared_ptr<const type[][2]> result =
boost::allocate_shared<const type[][2]>(creator<>(), 2);
BOOST_TEST(result.get() != 0);
BOOST_TEST(result.use_count() == 1);
BOOST_TEST(type::instances == 4);
result.reset();
BOOST_TEST(type::instances == 0);
}
{
boost::shared_ptr<const type[2][2]> result =
boost::allocate_shared<const type[2][2]>(creator<>());
BOOST_TEST(result.get() != 0);
BOOST_TEST(result.use_count() == 1);
BOOST_TEST(type::instances == 4);
result.reset();
BOOST_TEST(type::instances == 0);
}
return boost::report_errors();
}
#else
int main()
{
return 0;
}
#endif
|
