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c0ffa2ba | 1 | // C++11 <typeindex> -*- C++ -*- |
bafa9791 | 2 | |
405feeb8 | 3 | // Copyright (C) 2010-2013 Free Software Foundation, Inc. |
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4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
10 | ||
11 | // This library is distributed in the hope that it will be useful, | |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
15 | ||
16 | // Under Section 7 of GPL version 3, you are granted additional | |
17 | // permissions described in the GCC Runtime Library Exception, version | |
18 | // 3.1, as published by the Free Software Foundation. | |
19 | ||
20 | // You should have received a copy of the GNU General Public License and | |
21 | // a copy of the GCC Runtime Library Exception along with this program; | |
22 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
23 | // <http://www.gnu.org/licenses/>. | |
24 | ||
25 | /** @file include/typeindex | |
26 | * This is a Standard C++ Library header. | |
27 | */ | |
28 | ||
29 | #ifndef _GLIBCXX_TYPEINDEX | |
30 | #define _GLIBCXX_TYPEINDEX 1 | |
31 | ||
32 | #pragma GCC system_header | |
33 | ||
734f5023 | 34 | #if __cplusplus < 201103L |
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35 | # include <bits/c++0x_warning.h> |
36 | #else | |
37 | ||
bafa9791 | 38 | #include <typeinfo> |
bafa9791 | 39 | |
12ffa228 BK |
40 | namespace std _GLIBCXX_VISIBILITY(default) |
41 | { | |
42 | _GLIBCXX_BEGIN_NAMESPACE_VERSION | |
53dc5044 | 43 | |
bafa9791 | 44 | /** |
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45 | * @brief Class type_index |
46 | * @ingroup utilities | |
47 | * | |
48 | * The class type_index provides a simple wrapper for type_info | |
49 | * which can be used as an index type in associative containers | |
50 | * (23.6) and in unordered associative containers (23.7). | |
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51 | */ |
52 | struct type_index | |
53 | { | |
2789f415 | 54 | type_index(const type_info& __rhs) noexcept |
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55 | : _M_target(&__rhs) { } |
56 | ||
57 | bool | |
2789f415 | 58 | operator==(const type_index& __rhs) const noexcept |
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59 | { return *_M_target == *__rhs._M_target; } |
60 | ||
61 | bool | |
2789f415 | 62 | operator!=(const type_index& __rhs) const noexcept |
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63 | { return *_M_target != *__rhs._M_target; } |
64 | ||
65 | bool | |
2789f415 | 66 | operator<(const type_index& __rhs) const noexcept |
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67 | { return _M_target->before(*__rhs._M_target); } |
68 | ||
69 | bool | |
2789f415 | 70 | operator<=(const type_index& __rhs) const noexcept |
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71 | { return !__rhs._M_target->before(*_M_target); } |
72 | ||
73 | bool | |
2789f415 | 74 | operator>(const type_index& __rhs) const noexcept |
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75 | { return __rhs._M_target->before(*_M_target); } |
76 | ||
77 | bool | |
2789f415 | 78 | operator>=(const type_index& __rhs) const noexcept |
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79 | { return !_M_target->before(*__rhs._M_target); } |
80 | ||
81 | size_t | |
72f1c34b | 82 | hash_code() const noexcept |
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83 | { return _M_target->hash_code(); } |
84 | ||
85 | const char* | |
86 | name() const | |
87 | { return _M_target->name(); } | |
88 | ||
89 | private: | |
90 | const type_info* _M_target; | |
91 | }; | |
92 | ||
93 | template<typename _Tp> struct hash; | |
94 | ||
95 | /// std::hash specialization for type_index. | |
96 | template<> | |
97 | struct hash<type_index> | |
bafa9791 | 98 | { |
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99 | typedef size_t result_type; |
100 | typedef type_index argument_type; | |
101 | ||
bafa9791 | 102 | size_t |
72f1c34b | 103 | operator()(const type_index& __ti) const noexcept |
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104 | { return __ti.hash_code(); } |
105 | }; | |
53dc5044 | 106 | |
12ffa228 | 107 | _GLIBCXX_END_NAMESPACE_VERSION |
c0ffa2ba | 108 | } // namespace std |
bafa9791 | 109 | |
734f5023 | 110 | #endif // C++11 |
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111 | |
112 | #endif // _GLIBCXX_TYPEINDEX |