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1 | /* |
2 | * Copyright (c) 2012-2014 Glen Joseph Fernandes | |
3 | * glenfe at live dot com | |
4 | * | |
5 | * Distributed under the Boost Software License, | |
6 | * Version 1.0. (See accompanying file LICENSE_1_0.txt | |
7 | * or copy at http://boost.org/LICENSE_1_0.txt) | |
8 | */ | |
9 | #ifndef BOOST_SMART_PTR_MAKE_SHARED_ARRAY_HPP | |
10 | #define BOOST_SMART_PTR_MAKE_SHARED_ARRAY_HPP | |
11 | ||
12 | #include <boost/smart_ptr/detail/array_count_impl.hpp> | |
13 | #include <boost/smart_ptr/detail/sp_if_array.hpp> | |
14 | ||
15 | namespace boost { | |
16 | template<class T> | |
17 | inline typename boost::detail::sp_if_array<T>::type | |
18 | make_shared(std::size_t size) { | |
19 | typedef typename boost::detail::array_inner<T>::type T1; | |
20 | typedef typename boost::detail::array_base<T1>::type T2; | |
21 | typedef boost::detail::ms_allocator<T> A1; | |
22 | typedef boost::detail::ms_in_allocator_tag D1; | |
23 | std::size_t n1 = size * boost::detail::array_total<T1>::size; | |
24 | T1* p1 = 0; | |
25 | T2* p2 = 0; | |
26 | D1 d1; | |
27 | A1 a1(size, &p2); | |
28 | shared_ptr<T> s1(p1, d1, a1); | |
29 | A1* a2 = static_cast<A1*>(s1._internal_get_untyped_deleter()); | |
30 | a2->set(0); | |
31 | boost::detail::ms_init(p2, n1); | |
32 | a2->set(p2); | |
33 | p1 = reinterpret_cast<T1*>(p2); | |
34 | return shared_ptr<T>(s1, p1); | |
35 | } | |
36 | ||
37 | template<class T> | |
38 | inline typename boost::detail::sp_if_size_array<T>::type | |
39 | make_shared() { | |
40 | typedef typename boost::detail::array_inner<T>::type T1; | |
41 | typedef typename boost::detail::array_base<T1>::type T2; | |
42 | typedef boost::detail::ms_allocator<T> A1; | |
43 | typedef boost::detail::ms_in_allocator_tag D1; | |
44 | enum { | |
45 | N = boost::detail::array_total<T>::size | |
46 | }; | |
47 | T1* p1 = 0; | |
48 | T2* p2 = 0; | |
49 | D1 d1; | |
50 | A1 a1(&p2); | |
51 | shared_ptr<T> s1(p1, d1, a1); | |
52 | A1* a2 = static_cast<A1*>(s1._internal_get_untyped_deleter()); | |
53 | a2->set(0); | |
54 | boost::detail::ms_init(p2, N); | |
55 | a2->set(p2); | |
56 | p1 = reinterpret_cast<T1*>(p2); | |
57 | return shared_ptr<T>(s1, p1); | |
58 | } | |
59 | ||
60 | template<class T> | |
61 | inline typename boost::detail::sp_if_array<T>::type | |
62 | make_shared(std::size_t size, | |
63 | const typename boost::detail::array_inner<T>::type& value) { | |
64 | typedef typename boost::detail::array_inner<T>::type T1; | |
65 | typedef typename boost::detail::array_base<T1>::type T2; | |
66 | typedef const T2 T3; | |
67 | typedef boost::detail::ms_allocator<T> A1; | |
68 | typedef boost::detail::ms_in_allocator_tag D1; | |
69 | enum { | |
70 | M = boost::detail::array_total<T1>::size | |
71 | }; | |
72 | std::size_t n1 = M * size; | |
73 | T1* p1 = 0; | |
74 | T2* p2 = 0; | |
75 | T3* p3 = reinterpret_cast<T3*>(&value); | |
76 | D1 d1; | |
77 | A1 a1(size, &p2); | |
78 | shared_ptr<T> s1(p1, d1, a1); | |
79 | A1* a2 = static_cast<A1*>(s1._internal_get_untyped_deleter()); | |
80 | a2->set(0); | |
81 | boost::detail::ms_init<T2, M>(p2, n1, p3); | |
82 | a2->set(p2); | |
83 | p1 = reinterpret_cast<T1*>(p2); | |
84 | return shared_ptr<T>(s1, p1); | |
85 | } | |
86 | ||
87 | template<class T> | |
88 | inline typename boost::detail::sp_if_size_array<T>::type | |
89 | make_shared(const typename boost::detail::array_inner<T>::type& value) { | |
90 | typedef typename boost::detail::array_inner<T>::type T1; | |
91 | typedef typename boost::detail::array_base<T1>::type T2; | |
92 | typedef const T2 T3; | |
93 | typedef boost::detail::ms_allocator<T> A1; | |
94 | typedef boost::detail::ms_in_allocator_tag D1; | |
95 | enum { | |
96 | M = boost::detail::array_total<T1>::size, | |
97 | N = boost::detail::array_total<T>::size | |
98 | }; | |
99 | T1* p1 = 0; | |
100 | T2* p2 = 0; | |
101 | T3* p3 = reinterpret_cast<T3*>(&value); | |
102 | D1 d1; | |
103 | A1 a1(&p2); | |
104 | shared_ptr<T> s1(p1, d1, a1); | |
105 | A1* a2 = static_cast<A1*>(s1._internal_get_untyped_deleter()); | |
106 | a2->set(0); | |
107 | boost::detail::ms_init<T2, M>(p2, N, p3); | |
108 | a2->set(p2); | |
109 | p1 = reinterpret_cast<T1*>(p2); | |
110 | return shared_ptr<T>(s1, p1); | |
111 | } | |
112 | ||
113 | template<class T> | |
114 | inline typename boost::detail::sp_if_array<T>::type | |
115 | make_shared_noinit(std::size_t size) { | |
116 | typedef typename boost::detail::array_inner<T>::type T1; | |
117 | typedef typename boost::detail::array_base<T1>::type T2; | |
118 | typedef boost::detail::ms_allocator<T> A1; | |
119 | typedef boost::detail::ms_in_allocator_tag D1; | |
120 | std::size_t n1 = size * boost::detail::array_total<T1>::size; | |
121 | T1* p1 = 0; | |
122 | T2* p2 = 0; | |
123 | D1 d1; | |
124 | A1 a1(size, &p2); | |
125 | shared_ptr<T> s1(p1, d1, a1); | |
126 | A1* a2 = static_cast<A1*>(s1._internal_get_untyped_deleter()); | |
127 | a2->set(0); | |
128 | boost::detail::ms_noinit(p2, n1); | |
129 | a2->set(p2); | |
130 | p1 = reinterpret_cast<T1*>(p2); | |
131 | return shared_ptr<T>(s1, p1); | |
132 | } | |
133 | ||
134 | template<class T> | |
135 | inline typename boost::detail::sp_if_size_array<T>::type | |
136 | make_shared_noinit() { | |
137 | typedef typename boost::detail::array_inner<T>::type T1; | |
138 | typedef typename boost::detail::array_base<T1>::type T2; | |
139 | typedef boost::detail::ms_allocator<T> A1; | |
140 | typedef boost::detail::ms_in_allocator_tag D1; | |
141 | enum { | |
142 | N = boost::detail::array_total<T>::size | |
143 | }; | |
144 | T1* p1 = 0; | |
145 | T2* p2 = 0; | |
146 | D1 d1; | |
147 | A1 a1(&p2); | |
148 | shared_ptr<T> s1(p1, d1, a1); | |
149 | A1* a2 = static_cast<A1*>(s1._internal_get_untyped_deleter()); | |
150 | a2->set(0); | |
151 | boost::detail::ms_noinit(p2, N); | |
152 | a2->set(p2); | |
153 | p1 = reinterpret_cast<T1*>(p2); | |
154 | return shared_ptr<T>(s1, p1); | |
155 | } | |
156 | } | |
157 | ||
158 | #endif |