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09357846 JM |
1 | // std::initializer_list support -*- C++ -*- |
2 | ||
5d861bf2 | 3 | // Copyright (C) 2008, 2009, 2010, 2011 Free Software Foundation, Inc. |
09357846 JM |
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 | |
748086b7 | 9 | // the Free Software Foundation; either version 3, or (at your option) |
09357846 | 10 | // any later version. |
eaf4cf4f | 11 | // |
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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. | |
eaf4cf4f | 16 | // |
748086b7 JJ |
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. | |
09357846 | 20 | |
748086b7 JJ |
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/>. | |
09357846 | 25 | |
ad68e9fc BK |
26 | /** @file initializer_list |
27 | * This is a Standard C++ Library header. | |
28 | */ | |
29 | ||
eaf4cf4f BK |
30 | #ifndef _INITIALIZER_LIST |
31 | #define _INITIALIZER_LIST | |
09357846 | 32 | |
584fd146 PC |
33 | #pragma GCC system_header |
34 | ||
6010fae7 JM |
35 | #ifdef __GXX_EXPERIMENTAL_CXX0X__ |
36 | ||
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37 | #pragma GCC visibility push(default) |
38 | ||
8fc81078 | 39 | #include <bits/c++config.h> |
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40 | |
41 | namespace std | |
42 | { | |
ad68e9fc | 43 | /// initializer_list |
6010fae7 | 44 | template<class _E> |
d07660cc PC |
45 | class initializer_list |
46 | { | |
d07660cc | 47 | public: |
eaf4cf4f BK |
48 | typedef _E value_type; |
49 | typedef const _E& reference; | |
50 | typedef const _E& const_reference; | |
51 | typedef size_t size_type; | |
52 | typedef const _E* iterator; | |
53 | typedef const _E* const_iterator; | |
ffa52e11 | 54 | |
eaf4cf4f BK |
55 | private: |
56 | iterator _M_array; | |
57 | size_type _M_len; | |
ffa52e11 | 58 | |
eaf4cf4f | 59 | // The compiler can call a private constructor. |
900484de | 60 | constexpr initializer_list(const_iterator __a, size_type __l) |
eaf4cf4f | 61 | : _M_array(__a), _M_len(__l) { } |
ffa52e11 | 62 | |
eaf4cf4f | 63 | public: |
5d861bf2 PC |
64 | constexpr initializer_list() noexcept |
65 | : _M_array(0), _M_len(0) { } | |
d07660cc PC |
66 | |
67 | // Number of elements. | |
900484de | 68 | constexpr size_type |
5d861bf2 | 69 | size() const noexcept { return _M_len; } |
d07660cc PC |
70 | |
71 | // First element. | |
900484de | 72 | constexpr const_iterator |
5d861bf2 | 73 | begin() const noexcept { return _M_array; } |
d07660cc PC |
74 | |
75 | // One past the last element. | |
900484de | 76 | constexpr const_iterator |
5d861bf2 | 77 | end() const noexcept { return begin() + size(); } |
09357846 | 78 | }; |
f67a9881 PC |
79 | |
80 | /** | |
81 | * @brief Return an iterator pointing to the first element of | |
82 | * the initilizer_list. | |
93c66bc6 | 83 | * @param __ils Initializer list. |
f67a9881 PC |
84 | */ |
85 | template<class _Tp> | |
900484de | 86 | constexpr const _Tp* |
5d861bf2 | 87 | begin(initializer_list<_Tp> __ils) noexcept |
f67a9881 PC |
88 | { return __ils.begin(); } |
89 | ||
90 | /** | |
91 | * @brief Return an iterator pointing to one past the last element | |
92 | * of the initilizer_list. | |
93c66bc6 | 93 | * @param __ils Initializer list. |
f67a9881 PC |
94 | */ |
95 | template<class _Tp> | |
900484de | 96 | constexpr const _Tp* |
5d861bf2 | 97 | end(initializer_list<_Tp> __ils) noexcept |
f67a9881 | 98 | { return __ils.end(); } |
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99 | } |
100 | ||
101 | #pragma GCC visibility pop | |
6010fae7 | 102 | #endif // C++0x |
eaf4cf4f | 103 | #endif // _INITIALIZER_LIST |