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1 | /* |
2 | Copyright 2019 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_LIBSTDCXX_VERSION) || \ | |
10 | BOOST_LIBSTDCXX_VERSION >= 48000) && \ | |
11 | !defined(BOOST_NO_CXX11_SMART_PTR) && \ | |
12 | !defined(BOOST_NO_CXX11_ALLOCATOR) | |
13 | #include <boost/smart_ptr/allocate_unique.hpp> | |
14 | #include <boost/core/lightweight_test.hpp> | |
15 | ||
16 | struct allow { }; | |
17 | ||
18 | template<class T = void> | |
19 | struct creator { | |
20 | typedef T value_type; | |
21 | ||
22 | template<class U> | |
23 | struct rebind { | |
24 | typedef creator<U> other; | |
25 | }; | |
26 | ||
27 | creator() { } | |
28 | ||
29 | template<class U> | |
30 | creator(const creator<U>&) { } | |
31 | ||
32 | T* allocate(std::size_t size) { | |
33 | return static_cast<T*>(::operator new(sizeof(T) * size)); | |
34 | } | |
35 | ||
36 | void deallocate(T* ptr, std::size_t) { | |
37 | ::operator delete(ptr); | |
38 | } | |
39 | ||
40 | template<class U> | |
41 | void construct(U* ptr) { | |
42 | ::new(static_cast<void*>(ptr)) U(allow()); | |
43 | } | |
44 | ||
45 | template<class U> | |
46 | void destroy(U* ptr) { | |
47 | ptr->~U(); | |
48 | } | |
49 | ||
50 | }; | |
51 | ||
52 | template<class T, class U> | |
53 | inline bool | |
54 | operator==(const creator<T>&, const creator<U>&) | |
55 | { | |
56 | return true; | |
57 | } | |
58 | ||
59 | template<class T, class U> | |
60 | inline bool | |
61 | operator!=(const creator<T>&, const creator<U>&) | |
62 | { | |
63 | return false; | |
64 | } | |
65 | ||
66 | class type { | |
67 | public: | |
68 | static unsigned instances; | |
69 | ||
70 | explicit type(allow) { | |
71 | ++instances; | |
72 | } | |
73 | ||
74 | ~type() { | |
75 | --instances; | |
76 | } | |
77 | ||
78 | private: | |
79 | type(const type&); | |
80 | type& operator=(const type&); | |
81 | }; | |
82 | ||
83 | unsigned type::instances = 0; | |
84 | ||
85 | int main() | |
86 | { | |
87 | { | |
88 | std::unique_ptr<type[], | |
89 | boost::alloc_deleter<type[], creator<type> > > result = | |
90 | boost::allocate_unique<type[]>(creator<type>(), 3); | |
91 | BOOST_TEST(result.get() != 0); | |
92 | BOOST_TEST(type::instances == 3); | |
93 | result.reset(); | |
94 | BOOST_TEST(type::instances == 0); | |
95 | } | |
96 | { | |
97 | std::unique_ptr<type[], | |
98 | boost::alloc_deleter<type[3], creator<type> > > result = | |
99 | boost::allocate_unique<type[3]>(creator<type>()); | |
100 | BOOST_TEST(result.get() != 0); | |
101 | BOOST_TEST(type::instances == 3); | |
102 | result.reset(); | |
103 | BOOST_TEST(type::instances == 0); | |
104 | } | |
105 | { | |
106 | std::unique_ptr<type[][2], | |
107 | boost::alloc_deleter<type[][2], creator<> > > result = | |
108 | boost::allocate_unique<type[][2]>(creator<>(), 2); | |
109 | BOOST_TEST(result.get() != 0); | |
110 | BOOST_TEST(type::instances == 4); | |
111 | result.reset(); | |
112 | BOOST_TEST(type::instances == 0); | |
113 | } | |
114 | { | |
115 | std::unique_ptr<type[][2], | |
116 | boost::alloc_deleter<type[2][2], creator<> > > result = | |
117 | boost::allocate_unique<type[2][2]>(creator<>()); | |
118 | BOOST_TEST(result.get() != 0); | |
119 | BOOST_TEST(type::instances == 4); | |
120 | result.reset(); | |
121 | BOOST_TEST(type::instances == 0); | |
122 | } | |
123 | { | |
124 | std::unique_ptr<const type[], | |
125 | boost::alloc_deleter<const type[], creator<> > > result = | |
126 | boost::allocate_unique<const type[]>(creator<>(), 3); | |
127 | BOOST_TEST(result.get() != 0); | |
128 | BOOST_TEST(type::instances == 3); | |
129 | result.reset(); | |
130 | BOOST_TEST(type::instances == 0); | |
131 | } | |
132 | { | |
133 | std::unique_ptr<const type[], | |
134 | boost::alloc_deleter<const type[3], creator<> > > result = | |
135 | boost::allocate_unique<const type[3]>(creator<>()); | |
136 | BOOST_TEST(result.get() != 0); | |
137 | BOOST_TEST(type::instances == 3); | |
138 | result.reset(); | |
139 | BOOST_TEST(type::instances == 0); | |
140 | } | |
141 | { | |
142 | std::unique_ptr<const type[][2], | |
143 | boost::alloc_deleter<const type[][2], creator<> > > result = | |
144 | boost::allocate_unique<const type[][2]>(creator<>(), 2); | |
145 | BOOST_TEST(result.get() != 0); | |
146 | BOOST_TEST(type::instances == 4); | |
147 | result.reset(); | |
148 | BOOST_TEST(type::instances == 0); | |
149 | } | |
150 | { | |
151 | std::unique_ptr<const type[][2], | |
152 | boost::alloc_deleter<const type[2][2], creator<> > > result = | |
153 | boost::allocate_unique<const type[2][2]>(creator<>()); | |
154 | BOOST_TEST(result.get() != 0); | |
155 | BOOST_TEST(type::instances == 4); | |
156 | result.reset(); | |
157 | BOOST_TEST(type::instances == 0); | |
158 | } | |
159 | return boost::report_errors(); | |
160 | } | |
161 | #else | |
162 | int main() | |
163 | { | |
164 | return 0; | |
165 | } | |
166 | #endif |