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      1 // -*- C++ -*-
      2 
      3 // Copyright (C) 2005-2013 Free Software Foundation, Inc.
      4 //
      5 // This file is part of the GNU ISO C++ Library.  This library is free
      6 // software; you can redistribute it and/or modify it under the terms
      7 // of the GNU General Public License as published by the Free Software
      8 // Foundation; either version 3, or (at your option) any later
      9 // version.
     10 
     11 // This library is distributed in the hope that it will be useful, but
     12 // WITHOUT ANY WARRANTY; without even the implied warranty of
     13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
     14 // General Public License for more details.
     15 
     16 // Under Section 7 of GPL version 3, you are granted additional
     17 // permissions described in the GCC Runtime Library Exception, version
     18 // 3.1, as published by the Free Software Foundation.
     19 
     20 // You should have received a copy of the GNU General Public License and
     21 // a copy of the GCC Runtime Library Exception along with this program;
     22 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
     23 // <http://www.gnu.org/licenses/>.
     24 
     25 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
     26 
     27 // Permission to use, copy, modify, sell, and distribute this software
     28 // is hereby granted without fee, provided that the above copyright
     29 // notice appears in all copies, and that both that copyright notice
     30 // and this permission notice appear in supporting documentation. None
     31 // of the above authors, nor IBM Haifa Research Laboratories, make any
     32 // representation about the suitability of this software for any
     33 // purpose. It is provided "as is" without express or implied
     34 // warranty.
     35 
     36 /**
     37  * @file point_iterator.hpp
     38  * Contains an iterator class returned by the tables' find and insert
     39  *     methods.
     40  */
     41 
     42 /// Find type iterator.
     43 class point_iterator_
     44 {
     45 public:
     46   /// Category.
     47   typedef trivial_iterator_tag iterator_category;
     48 
     49   /// Difference type.
     50   typedef trivial_iterator_difference_type difference_type;
     51 
     52   /// Iterator's value type.
     53   typedef value_type_ value_type;
     54 
     55   /// Iterator's pointer type.
     56   typedef pointer_ pointer;
     57 
     58   /// Iterator's const pointer type.
     59   typedef const_pointer_ const_pointer;
     60 
     61   /// Iterator's reference type.
     62   typedef reference_ reference;
     63 
     64   /// Iterator's const reference type.
     65   typedef const_reference_ const_reference;
     66 
     67   /// Default constructor.
     68   inline
     69   point_iterator_()
     70   : m_p_value(0)
     71   { }
     72 
     73   /// Copy constructor.
     74   inline
     75   point_iterator_(const point_iterator_& other)
     76   : m_p_value(other.m_p_value)
     77   { }
     78 
     79   /// Access.
     80   pointer
     81   operator->() const
     82   {
     83     _GLIBCXX_DEBUG_ASSERT(m_p_value != 0);
     84     return (m_p_value);
     85   }
     86 
     87   /// Access.
     88   reference
     89   operator*() const
     90   {
     91     _GLIBCXX_DEBUG_ASSERT(m_p_value != 0);
     92     return (*m_p_value);
     93   }
     94 
     95   /// Compares content to a different iterator object.
     96   bool
     97   operator==(const point_iterator_& other) const
     98   { return m_p_value == other.m_p_value; }
     99 
    100   /// Compares content to a different iterator object.
    101   bool
    102   operator==(const point_const_iterator_& other) const
    103   { return m_p_value == other.m_p_value; }
    104 
    105   /// Compares content to a different iterator object.
    106   bool
    107   operator!=(const point_iterator_& other) const
    108   { return m_p_value != other.m_p_value; }
    109 
    110   /// Compares content (negatively) to a different iterator object.
    111   bool
    112   operator!=(const point_const_iterator_& other) const
    113   { return m_p_value != other.m_p_value; }
    114 
    115   inline
    116   point_iterator_(pointer p_value) : m_p_value(p_value)
    117   { }
    118 
    119 protected:
    120   friend class point_const_iterator_;
    121 
    122   friend class PB_DS_CLASS_C_DEC;
    123 
    124 protected:
    125   pointer m_p_value;
    126 };
    127