| // -*- C++ -*- |
| |
| // Copyright (C) 2005, 2006, 2009 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/>. |
| |
| // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. |
| |
| // Permission to use, copy, modify, sell, and distribute this software |
| // is hereby granted without fee, provided that the above copyright |
| // notice appears in all copies, and that both that copyright notice |
| // and this permission notice appear in supporting documentation. None |
| // of the above authors, nor IBM Haifa Research Laboratories, make any |
| // representation about the suitability of this software for any |
| // purpose. It is provided "as is" without express or implied |
| // warranty. |
| |
| /** |
| * @file basic_tree_policy_base.hpp |
| * Contains a base class for tree_like policies. |
| */ |
| |
| #ifndef PB_DS_TREE_LIKE_POLICY_BASE_HPP |
| #define PB_DS_TREE_LIKE_POLICY_BASE_HPP |
| |
| namespace __gnu_pbds |
| { |
| namespace detail |
| { |
| |
| #define PB_DS_CLASS_C_DEC \ |
| basic_tree_policy_base< \ |
| Const_Node_Iterator, \ |
| Node_Iterator, \ |
| Allocator> |
| |
| template<typename Const_Node_Iterator, |
| typename Node_Iterator, |
| typename Allocator> |
| struct basic_tree_policy_base |
| { |
| protected: |
| typedef typename Node_Iterator::value_type it_type; |
| |
| typedef typename std::iterator_traits< it_type>::value_type value_type; |
| |
| typedef typename value_type::first_type key_type; |
| |
| typedef |
| typename Allocator::template rebind< |
| typename remove_const< |
| key_type>::type>::other::const_reference |
| const_key_reference; |
| |
| typedef |
| typename Allocator::template rebind< |
| typename remove_const< |
| value_type>::type>::other::const_reference |
| const_reference; |
| |
| typedef |
| typename Allocator::template rebind< |
| typename remove_const< |
| value_type>::type>::other::reference |
| reference; |
| |
| typedef |
| typename Allocator::template rebind< |
| typename remove_const< |
| value_type>::type>::other::const_pointer |
| const_pointer; |
| |
| static inline const_key_reference |
| extract_key(const_reference r_val) |
| { |
| return (r_val.first); |
| } |
| |
| virtual it_type |
| end() = 0; |
| |
| it_type |
| end_iterator() const |
| { |
| return (const_cast<PB_DS_CLASS_C_DEC* >(this)->end()); |
| } |
| |
| virtual |
| ~basic_tree_policy_base() |
| { } |
| }; |
| |
| template<typename Const_Node_Iterator, typename Allocator> |
| struct basic_tree_policy_base< |
| Const_Node_Iterator, |
| Const_Node_Iterator, |
| Allocator> |
| { |
| protected: |
| typedef typename Const_Node_Iterator::value_type it_type; |
| |
| typedef typename std::iterator_traits< it_type>::value_type value_type; |
| |
| typedef value_type key_type; |
| |
| typedef |
| typename Allocator::template rebind< |
| typename remove_const< |
| key_type>::type>::other::const_reference |
| const_key_reference; |
| |
| typedef |
| typename Allocator::template rebind< |
| typename remove_const< |
| value_type>::type>::other::const_reference |
| const_reference; |
| |
| typedef |
| typename Allocator::template rebind< |
| typename remove_const< |
| value_type>::type>::other::reference |
| reference; |
| |
| typedef |
| typename Allocator::template rebind< |
| typename remove_const< |
| value_type>::type>::other::const_pointer |
| const_pointer; |
| |
| static inline const_key_reference |
| extract_key(const_reference r_val) |
| { |
| return (r_val); |
| } |
| |
| virtual it_type |
| end() const = 0; |
| |
| it_type |
| end_iterator() const |
| { |
| return (end()); |
| } |
| |
| virtual |
| ~basic_tree_policy_base() |
| { } |
| }; |
| |
| #undef PB_DS_CLASS_C_DEC |
| |
| } // namespace detail |
| } // namespace __gnu_pbds |
| |
| #endif // #ifndef PB_DS_TREE_LIKE_POLICY_BASE_HPP |
