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1 | /* |
2 | Copyright 2017 Glen Joseph Fernandes | |
3 | (glenjofe@gmail.com) | |
4 | ||
5 | Distributed under the Boost Software License, Version 1.0. | |
6 | (http://www.boost.org/LICENSE_1_0.txt) | |
7 | */ | |
8 | #include <boost/config.hpp> | |
9 | #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES) && \ | |
10 | !defined(BOOST_NO_CXX11_VARIADIC_TEMPLATES) && \ | |
11 | !defined(BOOST_NO_CXX11_ALLOCATOR) | |
12 | #include <boost/core/lightweight_test.hpp> | |
13 | #include <boost/smart_ptr/make_local_shared.hpp> | |
14 | ||
15 | struct allow { }; | |
16 | ||
17 | template<class T = void> | |
18 | struct creator { | |
19 | typedef T value_type; | |
20 | ||
21 | template<class U> | |
22 | struct rebind { | |
23 | typedef creator<U> other; | |
24 | }; | |
25 | ||
26 | creator() { } | |
27 | ||
28 | template<class U> | |
29 | creator(const creator<U>&) { } | |
30 | ||
31 | T* allocate(std::size_t size) { | |
32 | return static_cast<T*>(::operator new(sizeof(T) * size)); | |
33 | } | |
34 | ||
35 | void deallocate(T* ptr, std::size_t) { | |
36 | ::operator delete(ptr); | |
37 | } | |
38 | ||
39 | template<class U> | |
40 | void construct(U* ptr) { | |
41 | ::new(static_cast<void*>(ptr)) U(allow()); | |
42 | } | |
43 | ||
44 | template<class U> | |
45 | void destroy(U* ptr) { | |
46 | ptr->~U(); | |
47 | } | |
48 | ||
49 | }; | |
50 | ||
51 | template<class T, class U> | |
52 | inline bool | |
53 | operator==(const creator<T>&, const creator<U>&) | |
54 | { | |
55 | return true; | |
56 | } | |
57 | ||
58 | template<class T, class U> | |
59 | inline bool | |
60 | operator!=(const creator<T>&, const creator<U>&) | |
61 | { | |
62 | return false; | |
63 | } | |
64 | ||
65 | class type { | |
66 | public: | |
67 | static unsigned instances; | |
68 | ||
69 | explicit type(allow) { | |
70 | ++instances; | |
71 | } | |
72 | ||
73 | ~type() { | |
74 | --instances; | |
75 | } | |
76 | ||
77 | private: | |
78 | type(const type&); | |
79 | type& operator=(const type&); | |
80 | }; | |
81 | ||
82 | unsigned type::instances = 0; | |
83 | ||
84 | int main() | |
85 | { | |
86 | { | |
87 | boost::local_shared_ptr<type[]> result = | |
88 | boost::allocate_local_shared<type[]>(creator<type>(), 3); | |
89 | BOOST_TEST(result.get() != 0); | |
90 | BOOST_TEST(result.local_use_count() == 1); | |
91 | BOOST_TEST(type::instances == 3); | |
92 | result.reset(); | |
93 | BOOST_TEST(type::instances == 0); | |
94 | } | |
95 | { | |
96 | boost::local_shared_ptr<type[3]> result = | |
97 | boost::allocate_local_shared<type[3]>(creator<type>()); | |
98 | BOOST_TEST(result.get() != 0); | |
99 | BOOST_TEST(result.local_use_count() == 1); | |
100 | BOOST_TEST(type::instances == 3); | |
101 | result.reset(); | |
102 | BOOST_TEST(type::instances == 0); | |
103 | } | |
104 | { | |
105 | boost::local_shared_ptr<type[][2]> result = | |
106 | boost::allocate_local_shared<type[][2]>(creator<>(), 2); | |
107 | BOOST_TEST(result.get() != 0); | |
108 | BOOST_TEST(result.local_use_count() == 1); | |
109 | BOOST_TEST(type::instances == 4); | |
110 | result.reset(); | |
111 | BOOST_TEST(type::instances == 0); | |
112 | } | |
113 | { | |
114 | boost::local_shared_ptr<type[2][2]> result = | |
115 | boost::allocate_local_shared<type[2][2]>(creator<>()); | |
116 | BOOST_TEST(result.get() != 0); | |
117 | BOOST_TEST(result.local_use_count() == 1); | |
118 | BOOST_TEST(type::instances == 4); | |
119 | result.reset(); | |
120 | BOOST_TEST(type::instances == 0); | |
121 | } | |
122 | { | |
123 | boost::local_shared_ptr<const type[]> result = | |
124 | boost::allocate_local_shared<const type[]>(creator<>(), 3); | |
125 | BOOST_TEST(result.get() != 0); | |
126 | BOOST_TEST(result.local_use_count() == 1); | |
127 | BOOST_TEST(type::instances == 3); | |
128 | result.reset(); | |
129 | BOOST_TEST(type::instances == 0); | |
130 | } | |
131 | { | |
132 | boost::local_shared_ptr<const type[3]> result = | |
133 | boost::allocate_local_shared<const type[3]>(creator<>()); | |
134 | BOOST_TEST(result.get() != 0); | |
135 | BOOST_TEST(result.local_use_count() == 1); | |
136 | BOOST_TEST(type::instances == 3); | |
137 | result.reset(); | |
138 | BOOST_TEST(type::instances == 0); | |
139 | } | |
140 | { | |
141 | boost::local_shared_ptr<const type[][2]> result = | |
142 | boost::allocate_local_shared<const type[][2]>(creator<>(), 2); | |
143 | BOOST_TEST(result.get() != 0); | |
144 | BOOST_TEST(result.local_use_count() == 1); | |
145 | BOOST_TEST(type::instances == 4); | |
146 | result.reset(); | |
147 | BOOST_TEST(type::instances == 0); | |
148 | } | |
149 | { | |
150 | boost::local_shared_ptr<const type[2][2]> result = | |
151 | boost::allocate_local_shared<const type[2][2]>(creator<>()); | |
152 | BOOST_TEST(result.get() != 0); | |
153 | BOOST_TEST(result.local_use_count() == 1); | |
154 | BOOST_TEST(type::instances == 4); | |
155 | result.reset(); | |
156 | BOOST_TEST(type::instances == 0); | |
157 | } | |
158 | return boost::report_errors(); | |
159 | } | |
160 | #else | |
161 | int main() | |
162 | { | |
163 | return 0; | |
164 | } | |
165 | #endif |