| // std::initializer_list support -*- C++ -*- |
| |
| // Copyright (C) 2008-2021 Free Software Foundation, Inc. |
| // |
| // This file is part of GCC. |
| // |
| // GCC is free software; you can redistribute it and/or modify |
| // it under the terms of the GNU General Public License as published by |
| // the Free Software Foundation; either version 3, or (at your option) |
| // any later version. |
| // |
| // GCC is distributed in the hope that it will be useful, |
| // but WITHOUT ANY WARRANTY; without even the implied warranty of |
| // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| // GNU General Public License for more details. |
| // |
| // Under Section 7 of GPL version 3, you are granted additional |
| // permissions described in the GCC Runtime Library Exception, version |
| // 3.1, as published by the Free Software Foundation. |
| |
| // You should have received a copy of the GNU General Public License and |
| // a copy of the GCC Runtime Library Exception along with this program; |
| // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| // <http://www.gnu.org/licenses/>. |
| |
| /** @file initializer_list |
| * This is a Standard C++ Library header. |
| */ |
| |
| #ifndef _INITIALIZER_LIST |
| #define _INITIALIZER_LIST |
| |
| #pragma GCC system_header |
| |
| #if __cplusplus < 201103L |
| # include <bits/c++0x_warning.h> |
| #else // C++0x |
| |
| #pragma GCC visibility push(default) |
| |
| #include <bits/c++config.h> |
| |
| namespace std |
| { |
| /// initializer_list |
| template<class _E> |
| class initializer_list |
| { |
| public: |
| typedef _E value_type; |
| typedef const _E& reference; |
| typedef const _E& const_reference; |
| typedef size_t size_type; |
| typedef const _E* iterator; |
| typedef const _E* const_iterator; |
| |
| private: |
| iterator _M_array; |
| size_type _M_len; |
| |
| // The compiler can call a private constructor. |
| constexpr initializer_list(const_iterator __a, size_type __l) |
| : _M_array(__a), _M_len(__l) { } |
| |
| public: |
| constexpr initializer_list() noexcept |
| : _M_array(0), _M_len(0) { } |
| |
| // Number of elements. |
| constexpr size_type |
| size() const noexcept { return _M_len; } |
| |
| // First element. |
| constexpr const_iterator |
| begin() const noexcept { return _M_array; } |
| |
| // One past the last element. |
| constexpr const_iterator |
| end() const noexcept { return begin() + size(); } |
| }; |
| |
| /** |
| * @brief Return an iterator pointing to the first element of |
| * the initializer_list. |
| * @param __ils Initializer list. |
| * @relates initializer_list |
| */ |
| template<class _Tp> |
| constexpr const _Tp* |
| begin(initializer_list<_Tp> __ils) noexcept |
| { return __ils.begin(); } |
| |
| /** |
| * @brief Return an iterator pointing to one past the last element |
| * of the initializer_list. |
| * @param __ils Initializer list. |
| * @relates initializer_list |
| */ |
| template<class _Tp> |
| constexpr const _Tp* |
| end(initializer_list<_Tp> __ils) noexcept |
| { return __ils.end(); } |
| } |
| |
| #pragma GCC visibility pop |
| |
| #endif // C++11 |
| |
| #endif // _INITIALIZER_LIST |