✏️ Editing: const_iterator.hpp Read Only

// -*- C++ -*-

// Copyright (C) 2005-2021 Free Software Foundation, Inc.
//
// This file is part of the GNU ISO C++ Library.  This library is free
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/**
 * @file unordered_iterator/const_iterator.hpp
 * Contains an iterator class used for const ranging over the elements of the
 * table.
 *
 * This file is intended to be included inside a class definition, with
 * PB_DS_CLASS_C_DEC defined to the name of the enclosing class.
 */

#ifdef PB_DS_CLASS_C_DEC
/// Const range-type iterator.
class const_iterator_
: public point_const_iterator_
{
public:
  /// Category.
  typedef std::forward_iterator_tag iterator_category;

/// Difference type.
  typedef typename _Alloc::difference_type difference_type;

/// Iterator's value type.
  typedef value_type_ value_type;

/// Iterator's pointer type.
  typedef pointer_ pointer;

/// Iterator's const pointer type.
  typedef const_pointer_ const_pointer;

/// Iterator's reference type.
  typedef reference_ reference;

/// Iterator's const reference type.
  typedef const_reference_ const_reference;

/// Default constructor.
  const_iterator_() : m_p_tbl(0)
  { }

/// Increments.
  const_iterator_&
  operator++()
  {
    m_p_tbl->inc_it_state(base_type::m_p_value, m_pos);
    return *this;
  }

/// Increments.
  const_iterator_
  operator++(int)
  {
    const_iterator_ ret =* this;
    m_p_tbl->inc_it_state(base_type::m_p_value, m_pos);
    return ret;
  }

protected:
  typedef point_const_iterator_ base_type;

/**
   *  Constructor used by the table to initiate the generalized
   *      pointer and position (e.g., this is called from within a find()
   *      of a table.
   * */
  const_iterator_(const_pointer_ p_value,  PB_DS_GEN_POS pos,
		  const PB_DS_CLASS_C_DEC* p_tbl)
  : point_const_iterator_(p_value), m_p_tbl(p_tbl), m_pos(pos)
  { }

/**
   *  Pointer to the table object which created the iterator (used for
   *      incrementing its position.
   * */
  const PB_DS_CLASS_C_DEC* m_p_tbl;

PB_DS_GEN_POS m_pos;

friend class PB_DS_CLASS_C_DEC;
};
#endif

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