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// -*- C++ -*- |
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// Copyright (C) 2005-2015 Free Software Foundation, Inc. |
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// |
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// This file is part of the GNU ISO C++ Library. This library is free |
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// software; you can redistribute it and/or modify it under the terms |
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// of the GNU General Public License as published by the Free Software |
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// Foundation; either version 3, or (at your option) any later |
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// version. |
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// This library is distributed in the hope that it will be useful, but |
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// WITHOUT ANY WARRANTY; without even the implied warranty of |
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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// General Public License for more details. |
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// Under Section 7 of GPL version 3, you are granted additional |
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// permissions described in the GCC Runtime Library Exception, version |
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// 3.1, as published by the Free Software Foundation. |
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// You should have received a copy of the GNU General Public License and |
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// a copy of the GCC Runtime Library Exception along with this program; |
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
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// . |
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. |
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// Permission to use, copy, modify, sell, and distribute this software |
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// is hereby granted without fee, provided that the above copyright |
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// notice appears in all copies, and that both that copyright notice |
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// and this permission notice appear in supporting documentation. None |
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// of the above authors, nor IBM Haifa Research Laboratories, make any |
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// representation about the suitability of this software for any |
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// purpose. It is provided "as is" without express or implied |
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// warranty. |
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/** |
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* @file branch_policy/branch_policy.hpp |
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* Contains a base class for branch policies. |
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*/ |
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#ifndef PB_DS_BRANCH_POLICY_BASE_HPP |
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#define PB_DS_BRANCH_POLICY_BASE_HPP |
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#include |
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namespace __gnu_pbds |
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{ |
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namespace detail |
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{ |
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/// Primary template, base class for branch structure policies. |
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template |
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struct branch_policy |
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{ |
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protected: |
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typedef typename Node_Itr::value_type it_type; |
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typedef typename std::iterator_traits::value_type value_type; |
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typedef typename value_type::first_type key_type; |
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typedef typename remove_const::type rcvalue_type; |
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typedef typename remove_const::type rckey_type; |
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typedef typename _Alloc::template rebind::other rebind_v; |
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typedef typename _Alloc::template rebind::other rebind_k; |
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typedef typename rebind_v::reference reference; |
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typedef typename rebind_v::const_reference const_reference; |
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typedef typename rebind_v::const_pointer const_pointer; |
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typedef typename rebind_k::const_reference key_const_reference; |
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static inline key_const_reference |
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extract_key(const_reference r_val) |
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{ return r_val.first; } |
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virtual it_type |
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end() = 0; |
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it_type |
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end_iterator() const |
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{ return const_cast(this)->end(); } |
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virtual |
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~branch_policy() { } |
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}; |
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/// Specialization for const iterators. |
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template |
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struct branch_policy |
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{ |
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protected: |
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typedef typename Node_CItr::value_type it_type; |
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typedef typename std::iterator_traits::value_type value_type; |
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typedef typename remove_const::type rcvalue_type; |
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typedef typename _Alloc::template rebind::other rebind_v; |
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typedef typename rebind_v::reference reference; |
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typedef typename rebind_v::const_reference const_reference; |
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typedef typename rebind_v::const_pointer const_pointer; |
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typedef value_type key_type; |
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typedef typename rebind_v::const_reference key_const_reference; |
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static inline key_const_reference |
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extract_key(const_reference r_val) |
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{ return r_val; } |
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virtual it_type |
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end() const = 0; |
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it_type |
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end_iterator() const |
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{ return end(); } |
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virtual |
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~branch_policy() { } |
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}; |
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} // namespace detail |
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} // namespace __gnu_pbds |
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#endif // #ifndef PB_DS_BRANCH_POLICY_BASE_HPP |