1169691Skan// -*- C++ -*- 2169691Skan 3169691Skan// Copyright (C) 2005, 2006 Free Software Foundation, Inc. 4169691Skan// 5169691Skan// This file is part of the GNU ISO C++ Library. This library is free 6169691Skan// software; you can redistribute it and/or modify it under the terms 7169691Skan// of the GNU General Public License as published by the Free Software 8169691Skan// Foundation; either version 2, or (at your option) any later 9169691Skan// version. 10169691Skan 11169691Skan// This library is distributed in the hope that it will be useful, but 12169691Skan// WITHOUT ANY WARRANTY; without even the implied warranty of 13169691Skan// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14169691Skan// General Public License for more details. 15169691Skan 16169691Skan// You should have received a copy of the GNU General Public License 17169691Skan// along with this library; see the file COPYING. If not, write to 18169691Skan// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, 19169691Skan// MA 02111-1307, USA. 20169691Skan 21169691Skan// As a special exception, you may use this file as part of a free 22169691Skan// software library without restriction. Specifically, if other files 23169691Skan// instantiate templates or use macros or inline functions from this 24169691Skan// file, or you compile this file and link it with other files to 25169691Skan// produce an executable, this file does not by itself cause the 26169691Skan// resulting executable to be covered by the GNU General Public 27169691Skan// License. This exception does not however invalidate any other 28169691Skan// reasons why the executable file might be covered by the GNU General 29169691Skan// Public License. 30169691Skan 31169691Skan// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 32169691Skan 33169691Skan// Permission to use, copy, modify, sell, and distribute this software 34169691Skan// is hereby granted without fee, provided that the above copyright 35169691Skan// notice appears in all copies, and that both that copyright notice 36169691Skan// and this permission notice appear in supporting documentation. None 37169691Skan// of the above authors, nor IBM Haifa Research Laboratories, make any 38169691Skan// representation about the suitability of this software for any 39169691Skan// purpose. It is provided "as is" without express or implied 40169691Skan// warranty. 41169691Skan 42169691Skan/** 43169691Skan * @file const_point_iterator.hpp 44169691Skan * Contains an iterator class returned by the table's const find and insert 45169691Skan * methods. 46169691Skan */ 47169691Skan 48169691Skan#ifndef PB_DS_BINARY_HEAP_CONST_FIND_ITERATOR_HPP 49169691Skan#define PB_DS_BINARY_HEAP_CONST_FIND_ITERATOR_HPP 50169691Skan 51169691Skan#include <ext/pb_ds/tag_and_trait.hpp> 52169691Skan#include <debug/debug.h> 53169691Skan 54169691Skannamespace pb_ds 55169691Skan{ 56169691Skan namespace detail 57169691Skan { 58169691Skan // Const point-type iterator. 59169691Skan template<typename Value_Type, typename Entry, bool Simple, 60169691Skan typename Allocator> 61169691Skan class binary_heap_const_point_iterator_ 62169691Skan { 63169691Skan protected: 64169691Skan typedef typename Allocator::template rebind<Entry>::other::pointer entry_pointer; 65169691Skan 66169691Skan public: 67169691Skan // Category. 68169691Skan typedef trivial_iterator_tag iterator_category; 69169691Skan 70169691Skan // Difference type. 71169691Skan typedef trivial_iterator_difference_type difference_type; 72169691Skan 73169691Skan // Iterator's value type. 74169691Skan typedef Value_Type value_type; 75169691Skan 76169691Skan // Iterator's pointer type. 77169691Skan typedef typename Allocator::template rebind<value_type>::other::pointer 78169691Skan pointer; 79169691Skan 80169691Skan // Iterator's const pointer type. 81169691Skan typedef 82169691Skan typename Allocator::template rebind<value_type>::other::const_pointer 83169691Skan const_pointer; 84169691Skan 85169691Skan // Iterator's reference type. 86169691Skan typedef 87169691Skan typename Allocator::template rebind<value_type>::other::reference 88169691Skan reference; 89169691Skan 90169691Skan // Iterator's const reference type. 91169691Skan typedef 92169691Skan typename Allocator::template rebind<value_type>::other::const_reference 93169691Skan const_reference; 94169691Skan 95169691Skan inline 96169691Skan binary_heap_const_point_iterator_(entry_pointer p_e) : m_p_e(p_e) 97169691Skan { } 98169691Skan 99169691Skan // Default constructor. 100169691Skan inline 101169691Skan binary_heap_const_point_iterator_() : m_p_e(NULL) { } 102169691Skan 103169691Skan // Copy constructor. 104169691Skan inline 105169691Skan binary_heap_const_point_iterator_(const binary_heap_const_point_iterator_& other) 106169691Skan : m_p_e(other.m_p_e) 107169691Skan { } 108169691Skan 109169691Skan // Access. 110169691Skan inline const_pointer 111169691Skan operator->() const 112169691Skan { 113169691Skan _GLIBCXX_DEBUG_ASSERT(m_p_e != NULL); 114169691Skan return to_ptr(integral_constant<int, Simple>()); 115169691Skan } 116169691Skan 117169691Skan // Access. 118169691Skan inline const_reference 119169691Skan operator*() const 120169691Skan { 121169691Skan _GLIBCXX_DEBUG_ASSERT(m_p_e != NULL); 122169691Skan return *to_ptr(integral_constant<int, Simple>()); 123169691Skan } 124169691Skan 125169691Skan // Compares content to a different iterator object. 126169691Skan inline bool 127169691Skan operator==(const binary_heap_const_point_iterator_& other) const 128169691Skan { return m_p_e == other.m_p_e; } 129169691Skan 130169691Skan // Compares content (negatively) to a different iterator object. 131169691Skan inline bool 132169691Skan operator!=(const binary_heap_const_point_iterator_& other) const 133169691Skan { return m_p_e != other.m_p_e; } 134169691Skan 135169691Skan private: 136169691Skan inline const_pointer 137169691Skan to_ptr(true_type) const 138169691Skan { return m_p_e; } 139169691Skan 140169691Skan inline const_pointer 141169691Skan to_ptr(false_type) const 142169691Skan { return *m_p_e; } 143169691Skan 144169691Skan public: 145169691Skan entry_pointer m_p_e; 146169691Skan }; 147169691Skan } // namespace detail 148169691Skan} // namespace pb_ds 149169691Skan 150169691Skan#endif 151