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// -*- C++ -*-

// Copyright (C) 2005 Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the

// terms of the GNU General Public License as published by the

// Free Software Foundation; either version 2, or (at your option)

// any later version.

// This library is distributed in the hope that it will be useful,

// but WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

// GNU General Public License for more details.

// You should have received a copy of the GNU General Public License along

// with this library; see the file COPYING.  If not, write to the Free

// Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,

// USA.

// As a special exception, you may use this file as part of a free software

// library without restriction.  Specifically, if other files instantiate

// templates or use macros or inline functions from this file, or you compile

// this file and link it with other files to produce an executable, this

// file does not by itself cause the resulting executable to be covered by

// the GNU General Public License.  This exception does not however

// invalidate any other reasons why the executable file might be covered by

// the GNU General Public License.

// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.

// Permission to use, copy, modify, sell, and distribute this software

// is hereby granted without fee, provided that the above copyright

// notice appears in all copies, and that both that copyright notice and

// this permission notice appear in supporting documentation. None of

// the above authors, nor IBM Haifa Research Laboratories, make any

// representation about the suitability of this software for any

// purpose. It is provided "as is" without express or implied warranty.

/*

 * @file hash_standard_resize_policy_imp.hpp

 * Contains an implementation of hash_standard_resize_policy.

 */

#ifdef PB_ASSOC_HT_STANDARD_RESIZE_POLICY_DEBUG

#define PB_ASSOC_DBG_ASSERT(X) assert(X)

#define PB_ASSOC_DBG_VERIFY(X) assert(X)

#define PB_ASSOC_DBG_ONLY(X) X

#else // #ifdef PB_ASSOC_HT_STANDARD_RESIZE_POLICY_DEBUG

#define PB_ASSOC_DBG_ASSERT(X)

#define PB_ASSOC_DBG_VERIFY(X) {if((X)==0);}

#define PB_ASSOC_DBG_ONLY(X) ;

#endif // #ifdef PB_ASSOC_HT_STANDARD_RESIZE_POLICY_DEBUG

PB_ASSOC_CLASS_T_DEC

pb_assoc::detail::int_to_type<External_Size_Access>

PB_ASSOC_CLASS_C_DEC::s_external_size_access_indicator;

PB_ASSOC_CLASS_T_DEC

PB_ASSOC_CLASS_C_DEC::

hash_standard_resize_policy(size_type suggested_size /*= 8*/) :

  m_size(Size_Policy::get_init_size(suggested_size))

{

  my_trigger_policy_base::notify_externally_resized(

                                                    Size_Policy::get_init_size(suggested_size));

}

PB_ASSOC_CLASS_T_DEC

PB_ASSOC_CLASS_C_DEC::

hash_standard_resize_policy(const Size_Policy& r_size_policy, size_type suggested_size /*= 8*/) :

  Size_Policy(r_size_policy),

  m_size(Size_Policy::get_init_size(suggested_size))

{ }

PB_ASSOC_CLASS_T_DEC

PB_ASSOC_CLASS_C_DEC::

hash_standard_resize_policy(const Size_Policy& r_size_policy, const Trigger_Policy& r_trigger_policy, size_type suggested_size /*= 8*/) :

  Size_Policy(r_size_policy),

  Trigger_Policy(r_trigger_policy),

  m_size(Size_Policy::get_init_size(suggested_size))

{ }

PB_ASSOC_CLASS_T_DEC

PB_ASSOC_CLASS_C_DEC::

~hash_standard_resize_policy()

{ }

PB_ASSOC_CLASS_T_DEC

void

PB_ASSOC_CLASS_C_DEC::

swap(PB_ASSOC_CLASS_C_DEC& r_other)

{

  my_trigger_policy_base::swap(r_other);

  my_size_policy_base::swap(r_other);

  std::swap(m_size, r_other.m_size);

}

PB_ASSOC_CLASS_T_DEC

inline void

PB_ASSOC_CLASS_C_DEC::

notify_find_search_start()

{

  my_trigger_policy_base::notify_find_search_start();

}

PB_ASSOC_CLASS_T_DEC

inline void

PB_ASSOC_CLASS_C_DEC::

notify_find_search_collision()

{

  my_trigger_policy_base::notify_find_search_collision();

}

PB_ASSOC_CLASS_T_DEC

inline void

PB_ASSOC_CLASS_C_DEC::

notify_find_search_end()

{

  my_trigger_policy_base::notify_find_search_end();

}

PB_ASSOC_CLASS_T_DEC

inline void

PB_ASSOC_CLASS_C_DEC::

notify_insert_search_start()

{

  my_trigger_policy_base::notify_insert_search_start();

}

PB_ASSOC_CLASS_T_DEC

inline void

PB_ASSOC_CLASS_C_DEC::

notify_insert_search_collision()

{

  my_trigger_policy_base::notify_insert_search_collision();

}

PB_ASSOC_CLASS_T_DEC

inline void

PB_ASSOC_CLASS_C_DEC::

notify_insert_search_end()

{

  my_trigger_policy_base::notify_insert_search_end();

}

PB_ASSOC_CLASS_T_DEC

inline void

PB_ASSOC_CLASS_C_DEC::

notify_erase_search_start()

{

  my_trigger_policy_base::notify_erase_search_start();

}

PB_ASSOC_CLASS_T_DEC

inline void

PB_ASSOC_CLASS_C_DEC::

notify_erase_search_collision()

{

  my_trigger_policy_base::notify_erase_search_collision();

}

PB_ASSOC_CLASS_T_DEC

inline void

PB_ASSOC_CLASS_C_DEC::

notify_erase_search_end()

{

  my_trigger_policy_base::notify_erase_search_end();

}

PB_ASSOC_CLASS_T_DEC

inline void

PB_ASSOC_CLASS_C_DEC::

notify_inserted(size_type num_e)

{

  my_trigger_policy_base::notify_inserted(num_e);

}

PB_ASSOC_CLASS_T_DEC

inline void

PB_ASSOC_CLASS_C_DEC::

notify_erased(size_type num_e)

{

  my_trigger_policy_base::notify_inserted(num_e);

}

PB_ASSOC_CLASS_T_DEC

void

PB_ASSOC_CLASS_C_DEC::

notify_cleared()

{

  my_trigger_policy_base::notify_cleared();

}

PB_ASSOC_CLASS_T_DEC

inline bool

PB_ASSOC_CLASS_C_DEC::

is_resize_needed() const

{

  return (my_trigger_policy_base::is_resize_needed());

}

PB_ASSOC_CLASS_T_DEC

typename PB_ASSOC_CLASS_C_DEC::size_type

PB_ASSOC_CLASS_C_DEC::

get_new_size(size_type size, size_type num_used_e) const

{

  PB_ASSOC_DBG_ASSERT(m_size == size);

  if (my_trigger_policy_base::

      is_grow_needed(size, num_used_e))

    return (my_size_policy_base::get_nearest_larger_size(m_size));

  PB_ASSOC_DBG_ASSERT(my_trigger_policy_base::

                      is_shrink_needed(size, num_used_e));

  return (my_size_policy_base::get_nearest_smaller_size(m_size));

}

PB_ASSOC_CLASS_T_DEC

typename PB_ASSOC_CLASS_C_DEC::size_type

PB_ASSOC_CLASS_C_DEC::

get_init_size() const

{

  PB_ASSOC_DBG_ASSERT(m_size ==

                      my_trigger_policy_base::get_init_size());

  return (m_size);

}

PB_ASSOC_CLASS_T_DEC

void

PB_ASSOC_CLASS_C_DEC::

notify_resized(size_type new_size)

{

  my_trigger_policy_base::notify_resized(new_size);

  m_size = new_size;

}

PB_ASSOC_CLASS_T_DEC

inline typename PB_ASSOC_CLASS_C_DEC::size_type

PB_ASSOC_CLASS_C_DEC::

get_actual_size() const

{

  return (get_actual_size(s_external_size_access_indicator));

}

PB_ASSOC_CLASS_T_DEC

inline typename PB_ASSOC_CLASS_C_DEC::size_type

PB_ASSOC_CLASS_C_DEC::

get_actual_size(external_resize_true_indicator) const

{

  return (m_size);

}

PB_ASSOC_CLASS_T_DEC

void

PB_ASSOC_CLASS_C_DEC::

resize(size_type new_size)

{

  resize(new_size, s_external_size_access_indicator);

}

PB_ASSOC_CLASS_T_DEC

void

PB_ASSOC_CLASS_C_DEC::

resize(size_type new_size, external_resize_true_indicator)

{

  size_type actual_new_size = my_size_policy_base::get_init_size(1);

  while (actual_new_size < new_size)

    {

      const size_type pot =

        my_size_policy_base::get_nearest_larger_size(actual_new_size);

      if (pot == actual_new_size&&  pot < new_size)

        throw cannot_resize();

      actual_new_size = pot;

    }

  const size_type old_size = m_size;

  try

    {

      do_resize(actual_new_size);

    }

  catch(cannot_insert& )

    {

      m_size = old_size;

      throw cannot_resize();

    }

  catch(...)

    {

      m_size = old_size;

      throw;

    }

}

PB_ASSOC_CLASS_T_DEC

void

PB_ASSOC_CLASS_C_DEC::

do_resize(size_type /*new_size*/)

{

  // Tmp Ami

  abort();

}

PB_ASSOC_CLASS_T_DEC

Trigger_Policy&

PB_ASSOC_CLASS_C_DEC::

get_trigger_policy()

{

  return (*this);

}

PB_ASSOC_CLASS_T_DEC

const Trigger_Policy&

PB_ASSOC_CLASS_C_DEC::

get_trigger_policy() const

{

  return (*this);

}

PB_ASSOC_CLASS_T_DEC

Size_Policy&

PB_ASSOC_CLASS_C_DEC::

get_size_policy()

{

  return (*this);

}

PB_ASSOC_CLASS_T_DEC

const Size_Policy&

PB_ASSOC_CLASS_C_DEC::

get_size_policy() const

{

  return (*this);

}