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 >= 46000) && \
11 !defined(BOOST_NO_CXX11_SMART_PTR)
12 #include <boost/smart_ptr/allocate_unique.hpp>
13 #include <boost/core/lightweight_test.hpp>
14
15 template<class T = void>
16 struct creator {
17 typedef T value_type;
18 typedef T* pointer;
19
20 template<class U>
21 struct rebind {
22 typedef creator<U> other;
23 };
24
creatorcreator25 creator() { }
26
27 template<class U>
creatorcreator28 creator(const creator<U>&) { }
29
allocatecreator30 T* allocate(std::size_t size) {
31 return static_cast<T*>(::operator new(sizeof(T) * size));
32 }
33
deallocatecreator34 void deallocate(T* ptr, std::size_t) {
35 ::operator delete(ptr);
36 }
37 };
38
39 template<class T, class U>
40 inline bool
operator ==(const creator<T> &,const creator<U> &)41 operator==(const creator<T>&, const creator<U>&)
42 {
43 return true;
44 }
45
46 template<class T, class U>
47 inline bool
operator !=(const creator<T> &,const creator<U> &)48 operator!=(const creator<T>&, const creator<U>&)
49 {
50 return false;
51 }
52
53 class type {
54 public:
type(int x,int y)55 type(int x, int y)
56 : value_(x + y) { }
57
sum() const58 int sum() const {
59 return value_;
60 }
61
62 private:
63 int value_;
64 };
65
main()66 int main()
67 {
68 {
69 std::unique_ptr<int,
70 boost::alloc_deleter<int, creator<int> > > result =
71 boost::allocate_unique<int>(creator<int>(), 1);
72 BOOST_TEST(result.get() != 0);
73 BOOST_TEST(*result == 1);
74 }
75 {
76 std::unique_ptr<const int,
77 boost::alloc_deleter<const int, creator<> > > result =
78 boost::allocate_unique<const int>(creator<>(), 1);
79 BOOST_TEST(result.get() != 0);
80 BOOST_TEST(*result == 1);
81 }
82 {
83 std::unique_ptr<type,
84 boost::alloc_deleter<type, creator<type> > > result =
85 boost::allocate_unique<type>(creator<type>(), type(1, 2));
86 BOOST_TEST(result.get() != 0);
87 BOOST_TEST(result->sum() == 3);
88 }
89 {
90 std::unique_ptr<const type,
91 boost::alloc_deleter<const type, creator<> > > result =
92 boost::allocate_unique<const type>(creator<>(), type(1, 2));
93 BOOST_TEST(result.get() != 0);
94 BOOST_TEST(result->sum() == 3);
95 }
96 return boost::report_errors();
97 }
98 #else
main()99 int main()
100 {
101 return 0;
102 }
103 #endif
104