Edit File: basic_tree_policy_base.hpp
// -*- 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
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