You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
110 lines
3.0 KiB
110 lines
3.0 KiB
3 years ago
|
// 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
|