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Diffstat (limited to 'gcc-4.9/libstdc++-v3/include/bits/enable_special_members.h')
| -rw-r--r-- | gcc-4.9/libstdc++-v3/include/bits/enable_special_members.h | 278 |
1 files changed, 278 insertions, 0 deletions
diff --git a/gcc-4.9/libstdc++-v3/include/bits/enable_special_members.h b/gcc-4.9/libstdc++-v3/include/bits/enable_special_members.h new file mode 100644 index 0000000..b1822a4 --- /dev/null +++ b/gcc-4.9/libstdc++-v3/include/bits/enable_special_members.h @@ -0,0 +1,278 @@ +// <bits/enable_special_members.h> -*- C++ -*- + +// Copyright (C) 2013-2014 Free Software Foundation, Inc. +// +// 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 |