111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// -*- C++ -*- 211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Copyright (C) 2005-2014 Free Software Foundation, Inc. 411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// This file is part of the GNU ISO C++ Library. This library is free 611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// software; you can redistribute it and/or modify it under the terms 711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// of the GNU General Public License as published by the Free Software 811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Foundation; either version 3, or (at your option) any later 911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// version. 1011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// This library is distributed in the hope that it will be useful, but 1211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// WITHOUT ANY WARRANTY; without even the implied warranty of 1311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 1411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// General Public License for more details. 1511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 1611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Under Section 7 of GPL version 3, you are granted additional 1711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// permissions described in the GCC Runtime Library Exception, version 1811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// 3.1, as published by the Free Software Foundation. 1911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 2011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// You should have received a copy of the GNU General Public License and 2111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// a copy of the GCC Runtime Library Exception along with this program; 2211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 2311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// <http://www.gnu.org/licenses/>. 2411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 2511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 2611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 2711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// Permission to use, copy, modify, sell, and distribute this software 2811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// is hereby granted without fee, provided that the above copyright 2911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// notice appears in all copies, and that both that copyright notice 3011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// and this permission notice appear in supporting documentation. None 3111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// of the above authors, nor IBM Haifa Research Laboratories, make any 3211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// representation about the suitability of this software for any 3311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// purpose. It is provided "as is" without express or implied 3411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert// warranty. 3511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 3611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert/** 3711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * @file branch_policy/branch_policy.hpp 3811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert * Contains a base class for branch policies. 3911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert */ 4011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#ifndef PB_DS_BRANCH_POLICY_BASE_HPP 4211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#define PB_DS_BRANCH_POLICY_BASE_HPP 4311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#include <ext/pb_ds/tag_and_trait.hpp> 4511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 4611cd02dfb91661c65134cac258cf5924270e9d2Dan Albertnamespace __gnu_pbds 4711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert{ 4811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert namespace detail 4911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { 5011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /// Primary template, base class for branch structure policies. 5111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert template<typename Node_CItr, typename Node_Itr, typename _Alloc> 5211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct branch_policy 5311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { 5411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert protected: 5511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename Node_Itr::value_type it_type; 5611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename std::iterator_traits<it_type>::value_type value_type; 5711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename value_type::first_type key_type; 5811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 5911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename remove_const<value_type>::type rcvalue_type; 6011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename remove_const<key_type>::type rckey_type; 6111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename _Alloc::template rebind<rcvalue_type>::other rebind_v; 6311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename _Alloc::template rebind<rckey_type>::other rebind_k; 6411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename rebind_v::reference reference; 6611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename rebind_v::const_reference const_reference; 6711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename rebind_v::const_pointer const_pointer; 6811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 6911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename rebind_k::const_reference key_const_reference; 7011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert static inline key_const_reference 7211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert extract_key(const_reference r_val) 7311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { return r_val.first; } 7411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert virtual it_type 7611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert end() = 0; 7711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 7811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert it_type 7911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert end_iterator() const 8011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { return const_cast<branch_policy*>(this)->end(); } 8111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 8211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert virtual 8311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ~branch_policy() { } 8411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert }; 8511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 8611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert /// Specialization for const iterators. 8711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert template<typename Node_CItr, typename _Alloc> 8811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert struct branch_policy<Node_CItr, Node_CItr, _Alloc> 8911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { 9011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert protected: 9111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename Node_CItr::value_type it_type; 9211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename std::iterator_traits<it_type>::value_type value_type; 9311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename remove_const<value_type>::type rcvalue_type; 9411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename _Alloc::template rebind<rcvalue_type>::other rebind_v; 9511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename rebind_v::reference reference; 9611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename rebind_v::const_reference const_reference; 9711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename rebind_v::const_pointer const_pointer; 9811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 9911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef value_type key_type; 10011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert typedef typename rebind_v::const_reference key_const_reference; 10111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert static inline key_const_reference 10311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert extract_key(const_reference r_val) 10411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { return r_val; } 10511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert virtual it_type 10711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert end() const = 0; 10811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 10911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert it_type 11011cd02dfb91661c65134cac258cf5924270e9d2Dan Albert end_iterator() const 11111cd02dfb91661c65134cac258cf5924270e9d2Dan Albert { return end(); } 11211cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 11311cd02dfb91661c65134cac258cf5924270e9d2Dan Albert virtual 11411cd02dfb91661c65134cac258cf5924270e9d2Dan Albert ~branch_policy() { } 11511cd02dfb91661c65134cac258cf5924270e9d2Dan Albert }; 11611cd02dfb91661c65134cac258cf5924270e9d2Dan Albert } // namespace detail 11711cd02dfb91661c65134cac258cf5924270e9d2Dan Albert} // namespace __gnu_pbds 11811cd02dfb91661c65134cac258cf5924270e9d2Dan Albert 11911cd02dfb91661c65134cac258cf5924270e9d2Dan Albert#endif // #ifndef PB_DS_BRANCH_POLICY_BASE_HPP 120