00001 // -*- C++ -*- 00002 00003 // Copyright (C) 2005 Free Software Foundation, Inc. 00004 // 00005 // This file is part of the GNU ISO C++ Library. This library is free 00006 // software; you can redistribute it and/or modify it under the 00007 // terms of the GNU General Public License as published by the 00008 // Free Software Foundation; either version 2, or (at your option) 00009 // any later version. 00010 00011 // This library is distributed in the hope that it will be useful, 00012 // but WITHOUT ANY WARRANTY; without even the implied warranty of 00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 00014 // GNU General Public License for more details. 00015 00016 // You should have received a copy of the GNU General Public License along 00017 // with this library; see the file COPYING. If not, write to the Free 00018 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, 00019 // USA. 00020 00021 // As a special exception, you may use this file as part of a free software 00022 // library without restriction. Specifically, if other files instantiate 00023 // templates or use macros or inline functions from this file, or you compile 00024 // this file and link it with other files to produce an executable, this 00025 // file does not by itself cause the resulting executable to be covered by 00026 // the GNU General Public License. This exception does not however 00027 // invalidate any other reasons why the executable file might be covered by 00028 // the GNU General Public License. 00029 00030 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 00031 00032 // Permission to use, copy, modify, sell, and distribute this software 00033 // is hereby granted without fee, provided that the above copyright 00034 // notice appears in all copies, and that both that copyright notice and 00035 // this permission notice appear in supporting documentation. None of 00036 // the above authors, nor IBM Haifa Research Laboratories, make any 00037 // representation about the suitability of this software for any 00038 // purpose. It is provided "as is" without express or implied warranty. 00039 00045 class const_node_it_ 00046 { 00047 00048 public: 00049 00050 typedef trivial_iterator_tag iterator_category; 00051 00052 typedef trivial_iterator_difference_type difference_type; 00053 00054 typedef const_iterator value_type; 00055 00056 typedef const_iterator* pointer; 00057 00058 typedef const_iterator* const_pointer; 00059 00060 typedef const_iterator& reference; 00061 00062 typedef const iterator& const_reference; 00063 00064 public: 00065 00066 inline 00067 const_node_it_(const node_pointer p_nd = NULL) 00068 00069 : m_p_nd(const_cast<node_pointer>(p_nd)) 00070 { } 00071 00072 inline const_iterator 00073 operator*() const 00074 { 00075 return (const_iterator(m_p_nd)); 00076 } 00077 00078 inline const_node_it_ 00079 l_child() const 00080 { 00081 return (const_node_it_(m_p_nd->m_p_left)); 00082 } 00083 00084 inline const_node_it_ 00085 r_child() const 00086 { 00087 return (const_node_it_(m_p_nd->m_p_right)); 00088 } 00089 00090 inline bool 00091 operator==(const const_node_it_& r_other) const 00092 { 00093 return (m_p_nd == r_other.m_p_nd); 00094 } 00095 00096 inline bool 00097 operator!=(const const_node_it_& r_other) const 00098 { 00099 return (m_p_nd != r_other.m_p_nd); 00100 } 00101 00102 private: 00103 00104 friend class PB_ASSOC_CLASS_C_DEC; 00105 00106 public: 00107 node_pointer m_p_nd; 00108 }; 00109 00110 class node_it_ : 00111 public const_node_it_ 00112 00113 { 00114 00115 public: 00116 00117 inline 00118 node_it_(const node_pointer p_nd = NULL) 00119 00120 : const_node_it_(const_cast<node_pointer>(p_nd)) 00121 { } 00122 00123 inline iterator 00124 operator*() const 00125 { 00126 return (iterator(const_node_it_::m_p_nd)); 00127 } 00128 00129 inline node_it_ 00130 l_child() 00131 { 00132 return (node_it_(const_node_it_::m_p_nd->m_p_left)); 00133 } 00134 00135 inline node_it_ 00136 r_child() 00137 { 00138 return (node_it_(const_node_it_::m_p_nd->m_p_right)); 00139 } 00140 00141 private: 00142 friend class PB_ASSOC_CLASS_C_DEC; 00143 }; 00144