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f82f1250 | 1 | // std::initializer_list support -*- C++ -*- |
2 | ||
f1717362 | 3 | // Copyright (C) 2008-2016 Free Software Foundation, Inc. |
f82f1250 | 4 | // |
5 | // This file is part of GCC. | |
6 | // | |
7 | // GCC is free software; you can redistribute it and/or modify | |
8 | // it under the terms of the GNU General Public License as published by | |
6bc9506f | 9 | // the Free Software Foundation; either version 3, or (at your option) |
f82f1250 | 10 | // any later version. |
104c1b57 | 11 | // |
f82f1250 | 12 | // GCC is distributed in the hope that it will be useful, |
13 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | // GNU General Public License for more details. | |
104c1b57 | 16 | // |
6bc9506f | 17 | // Under Section 7 of GPL version 3, you are granted additional |
18 | // permissions described in the GCC Runtime Library Exception, version | |
19 | // 3.1, as published by the Free Software Foundation. | |
f82f1250 | 20 | |
6bc9506f | 21 | // You should have received a copy of the GNU General Public License and |
22 | // a copy of the GCC Runtime Library Exception along with this program; | |
23 | // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see | |
24 | // <http://www.gnu.org/licenses/>. | |
f82f1250 | 25 | |
c785a1c4 | 26 | /** @file initializer_list |
27 | * This is a Standard C++ Library header. | |
28 | */ | |
29 | ||
104c1b57 | 30 | #ifndef _INITIALIZER_LIST |
31 | #define _INITIALIZER_LIST | |
f82f1250 | 32 | |
1c59b93d | 33 | #pragma GCC system_header |
34 | ||
0c8766b1 | 35 | #if __cplusplus < 201103L |
fbb4cdfc | 36 | # include <bits/c++0x_warning.h> |
1223baf2 | 37 | #else // C++0x |
b26a4c3c | 38 | |
f82f1250 | 39 | #pragma GCC visibility push(default) |
40 | ||
e4bb1925 | 41 | #include <bits/c++config.h> |
f82f1250 | 42 | |
43 | namespace std | |
44 | { | |
c785a1c4 | 45 | /// initializer_list |
b26a4c3c | 46 | template<class _E> |
e8e3dcf6 | 47 | class initializer_list |
48 | { | |
e8e3dcf6 | 49 | public: |
104c1b57 | 50 | typedef _E value_type; |
51 | typedef const _E& reference; | |
52 | typedef const _E& const_reference; | |
53 | typedef size_t size_type; | |
54 | typedef const _E* iterator; | |
55 | typedef const _E* const_iterator; | |
1a446ccc | 56 | |
104c1b57 | 57 | private: |
58 | iterator _M_array; | |
59 | size_type _M_len; | |
1a446ccc | 60 | |
104c1b57 | 61 | // The compiler can call a private constructor. |
1e0572d7 | 62 | constexpr initializer_list(const_iterator __a, size_type __l) |
104c1b57 | 63 | : _M_array(__a), _M_len(__l) { } |
1a446ccc | 64 | |
104c1b57 | 65 | public: |
7643295e | 66 | constexpr initializer_list() noexcept |
67 | : _M_array(0), _M_len(0) { } | |
e8e3dcf6 | 68 | |
69 | // Number of elements. | |
1e0572d7 | 70 | constexpr size_type |
7643295e | 71 | size() const noexcept { return _M_len; } |
e8e3dcf6 | 72 | |
73 | // First element. | |
1e0572d7 | 74 | constexpr const_iterator |
7643295e | 75 | begin() const noexcept { return _M_array; } |
e8e3dcf6 | 76 | |
77 | // One past the last element. | |
1e0572d7 | 78 | constexpr const_iterator |
7643295e | 79 | end() const noexcept { return begin() + size(); } |
d2c24105 | 80 | }; |
04707963 | 81 | |
82 | /** | |
83 | * @brief Return an iterator pointing to the first element of | |
0b3f3aa4 | 84 | * the initializer_list. |
e12e4f3b | 85 | * @param __ils Initializer list. |
04707963 | 86 | */ |
87 | template<class _Tp> | |
1e0572d7 | 88 | constexpr const _Tp* |
7643295e | 89 | begin(initializer_list<_Tp> __ils) noexcept |
04707963 | 90 | { return __ils.begin(); } |
91 | ||
92 | /** | |
93 | * @brief Return an iterator pointing to one past the last element | |
0b3f3aa4 | 94 | * of the initializer_list. |
e12e4f3b | 95 | * @param __ils Initializer list. |
04707963 | 96 | */ |
97 | template<class _Tp> | |
1e0572d7 | 98 | constexpr const _Tp* |
7643295e | 99 | end(initializer_list<_Tp> __ils) noexcept |
04707963 | 100 | { return __ils.end(); } |
f82f1250 | 101 | } |
102 | ||
103 | #pragma GCC visibility pop | |
1223baf2 | 104 | |
0c8766b1 | 105 | #endif // C++11 |
1223baf2 | 106 | |
104c1b57 | 107 | #endif // _INITIALIZER_LIST |