2014-09-21 17:33:12 +00:00
|
|
|
// <bits/enable_special_members.h> -*- C++ -*-
|
|
|
|
|
|
2017-04-10 11:32:00 +00:00
|
|
|
// Copyright (C) 2013-2016 Free Software Foundation, Inc.
|
2014-09-21 17:33:12 +00:00
|
|
|
//
|
|
|
|
|
// This file is part of the GNU ISO C++ Library. This library 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.
|
|
|
|
|
|
|
|
|
|
// This library 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 bits/enable_special_members.h
|
|
|
|
|
* This is an internal header file, included by other library headers.
|
|
|
|
|
* Do not attempt to use it directly.
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
#ifndef _ENABLE_SPECIAL_MEMBERS_H
|
|
|
|
|
#define _ENABLE_SPECIAL_MEMBERS_H 1
|
|
|
|
|
|
|
|
|
|
#pragma GCC system_header
|
|
|
|
|
|
|
|
|
|
namespace std _GLIBCXX_VISIBILITY(default)
|
|
|
|
|
{
|
|
|
|
|
_GLIBCXX_BEGIN_NAMESPACE_VERSION
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @brief A mixin helper to conditionally enable or disable the default
|
|
|
|
|
* constructor.
|
|
|
|
|
* @sa _Enable_special_members
|
|
|
|
|
*/
|
|
|
|
|
template<bool _Switch, typename _Tag = void>
|
|
|
|
|
struct _Enable_default_constructor { };
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @brief A mixin helper to conditionally enable or disable the default
|
|
|
|
|
* destructor.
|
|
|
|
|
* @sa _Enable_special_members
|
|
|
|
|
*/
|
|
|
|
|
template<bool _Switch, typename _Tag = void>
|
|
|
|
|
struct _Enable_destructor { };
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @brief A mixin helper to conditionally enable or disable the copy/move
|
|
|
|
|
* special members.
|
|
|
|
|
* @sa _Enable_special_members
|
|
|
|
|
*/
|
|
|
|
|
template<bool _Copy, bool _CopyAssignment,
|
|
|
|
|
bool _Move, bool _MoveAssignment,
|
|
|
|
|
typename _Tag = void>
|
|
|
|
|
struct _Enable_copy_move { };
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* @brief A mixin helper to conditionally enable or disable the special
|
|
|
|
|
* members.
|
|
|
|
|
*
|
|
|
|
|
* The @c _Tag type parameter is to make mixin bases unique and thus avoid
|
|
|
|
|
* ambiguities.
|
|
|
|
|
*/
|
|
|
|
|
template<bool _Default, bool _Destructor,
|
|
|
|
|
bool _Copy, bool _CopyAssignment,
|
|
|
|
|
bool _Move, bool _MoveAssignment,
|
|
|
|
|
typename _Tag = void>
|
|
|
|
|
struct _Enable_special_members
|
|
|
|
|
: private _Enable_default_constructor<_Default, _Tag>,
|
|
|
|
|
private _Enable_destructor<_Destructor, _Tag>,
|
|
|
|
|
private _Enable_copy_move<_Copy, _CopyAssignment,
|
|
|
|
|
_Move, _MoveAssignment,
|
|
|
|
|
_Tag>
|
|
|
|
|
{ };
|
|
|
|
|
|
|
|
|
|
// Boilerplate follows.
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_default_constructor<false, _Tag>
|
|
|
|
|
{ constexpr _Enable_default_constructor() noexcept = delete; };
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_destructor<false, _Tag>
|
|
|
|
|
{ ~_Enable_destructor() noexcept = delete; };
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<false, true, true, true, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<true, false, true, true, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<false, false, true, true, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<true, true, false, true, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<false, true, false, true, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<true, false, false, true, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<false, false, false, true, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<true, true, true, false, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<false, true, true, false, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<true, false, true, false, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<false, false, true, false, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<true, true, false, false, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<false, true, false, false, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<true, false, false, false, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
template<typename _Tag>
|
|
|
|
|
struct _Enable_copy_move<false, false, false, false, _Tag>
|
|
|
|
|
{
|
|
|
|
|
constexpr _Enable_copy_move() noexcept = default;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
constexpr _Enable_copy_move(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move const&) noexcept = delete;
|
|
|
|
|
_Enable_copy_move&
|
|
|
|
|
operator=(_Enable_copy_move&&) noexcept = delete;
|
|
|
|
|
};
|
|
|
|
|
|
|
|
|
|
_GLIBCXX_END_NAMESPACE_VERSION
|
|
|
|
|
} // namespace std
|
|
|
|
|
|
|
|
|
|
#endif // _ENABLE_SPECIAL_MEMBERS_H
|
