0,0 → 1,249 |
// -*- C++ -*- |
|
// Copyright (C) 2005-2013 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 3, 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. |
|
// Under Section 7 of GPL version 3, you are granted additional |
// permissions described in the GCC Runtime Library Exception, version |
// 3.1, as published by the Free Software Foundation. |
|
// You should have received a copy of the GNU General Public License and |
// a copy of the GCC Runtime Library Exception along with this program; |
// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
// <http://www.gnu.org/licenses/>. |
|
// 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 a resize policy implementation. |
*/ |
|
PB_DS_CLASS_T_DEC |
PB_DS_CLASS_C_DEC:: |
hash_standard_resize_policy() |
: m_size(Size_Policy::get_nearest_larger_size(1)) |
{ trigger_policy_base::notify_externally_resized(m_size); } |
|
PB_DS_CLASS_T_DEC |
PB_DS_CLASS_C_DEC:: |
hash_standard_resize_policy(const Size_Policy& r_size_policy) |
: Size_Policy(r_size_policy), m_size(Size_Policy::get_nearest_larger_size(1)) |
{ trigger_policy_base::notify_externally_resized(m_size); } |
|
PB_DS_CLASS_T_DEC |
PB_DS_CLASS_C_DEC:: |
hash_standard_resize_policy(const Size_Policy& r_size_policy, |
const Trigger_Policy& r_trigger_policy) |
: Size_Policy(r_size_policy), Trigger_Policy(r_trigger_policy), |
m_size(Size_Policy::get_nearest_larger_size(1)) |
{ trigger_policy_base::notify_externally_resized(m_size); } |
|
PB_DS_CLASS_T_DEC |
PB_DS_CLASS_C_DEC:: |
~hash_standard_resize_policy() |
{ } |
|
PB_DS_CLASS_T_DEC |
void |
PB_DS_CLASS_C_DEC:: |
swap(PB_DS_CLASS_C_DEC& other) |
{ |
trigger_policy_base::swap(other); |
size_policy_base::swap(other); |
std::swap(m_size, other.m_size); |
} |
|
PB_DS_CLASS_T_DEC |
inline void |
PB_DS_CLASS_C_DEC:: |
notify_find_search_start() |
{ trigger_policy_base::notify_find_search_start(); } |
|
PB_DS_CLASS_T_DEC |
inline void |
PB_DS_CLASS_C_DEC:: |
notify_find_search_collision() |
{ trigger_policy_base::notify_find_search_collision(); } |
|
PB_DS_CLASS_T_DEC |
inline void |
PB_DS_CLASS_C_DEC:: |
notify_find_search_end() |
{ trigger_policy_base::notify_find_search_end(); } |
|
PB_DS_CLASS_T_DEC |
inline void |
PB_DS_CLASS_C_DEC:: |
notify_insert_search_start() |
{ trigger_policy_base::notify_insert_search_start(); } |
|
PB_DS_CLASS_T_DEC |
inline void |
PB_DS_CLASS_C_DEC:: |
notify_insert_search_collision() |
{ trigger_policy_base::notify_insert_search_collision(); } |
|
PB_DS_CLASS_T_DEC |
inline void |
PB_DS_CLASS_C_DEC:: |
notify_insert_search_end() |
{ trigger_policy_base::notify_insert_search_end(); } |
|
PB_DS_CLASS_T_DEC |
inline void |
PB_DS_CLASS_C_DEC:: |
notify_erase_search_start() |
{ trigger_policy_base::notify_erase_search_start(); } |
|
PB_DS_CLASS_T_DEC |
inline void |
PB_DS_CLASS_C_DEC:: |
notify_erase_search_collision() |
{ trigger_policy_base::notify_erase_search_collision(); } |
|
PB_DS_CLASS_T_DEC |
inline void |
PB_DS_CLASS_C_DEC:: |
notify_erase_search_end() |
{ trigger_policy_base::notify_erase_search_end(); } |
|
PB_DS_CLASS_T_DEC |
inline void |
PB_DS_CLASS_C_DEC:: |
notify_inserted(size_type num_e) |
{ trigger_policy_base::notify_inserted(num_e); } |
|
PB_DS_CLASS_T_DEC |
inline void |
PB_DS_CLASS_C_DEC:: |
notify_erased(size_type num_e) |
{ trigger_policy_base::notify_erased(num_e); } |
|
PB_DS_CLASS_T_DEC |
void |
PB_DS_CLASS_C_DEC:: |
notify_cleared() |
{ trigger_policy_base::notify_cleared(); } |
|
PB_DS_CLASS_T_DEC |
inline bool |
PB_DS_CLASS_C_DEC:: |
is_resize_needed() const |
{ return trigger_policy_base::is_resize_needed(); } |
|
PB_DS_CLASS_T_DEC |
typename PB_DS_CLASS_C_DEC::size_type |
PB_DS_CLASS_C_DEC:: |
get_new_size(size_type size, size_type num_used_e) const |
{ |
if (trigger_policy_base::is_grow_needed(size, num_used_e)) |
return size_policy_base::get_nearest_larger_size(size); |
return size_policy_base::get_nearest_smaller_size(size); |
} |
|
PB_DS_CLASS_T_DEC |
void |
PB_DS_CLASS_C_DEC:: |
notify_resized(size_type new_size) |
{ |
trigger_policy_base::notify_resized(new_size); |
m_size = new_size; |
} |
|
PB_DS_CLASS_T_DEC |
inline typename PB_DS_CLASS_C_DEC::size_type |
PB_DS_CLASS_C_DEC:: |
get_actual_size() const |
{ |
PB_DS_STATIC_ASSERT(access, external_size_access); |
return m_size; |
} |
|
PB_DS_CLASS_T_DEC |
void |
PB_DS_CLASS_C_DEC:: |
resize(size_type new_size) |
{ |
PB_DS_STATIC_ASSERT(access, external_size_access); |
size_type actual_size = size_policy_base::get_nearest_larger_size(1); |
while (actual_size < new_size) |
{ |
const size_type pot = size_policy_base::get_nearest_larger_size(actual_size); |
|
if (pot == actual_size && pot < new_size) |
__throw_resize_error(); |
actual_size = pot; |
} |
|
if (actual_size > 0) |
--actual_size; |
|
const size_type old_size = m_size; |
__try |
{ |
do_resize(actual_size - 1); |
} |
__catch(insert_error& ) |
{ |
m_size = old_size; |
__throw_resize_error(); |
} |
__catch(...) |
{ |
m_size = old_size; |
__throw_exception_again; |
} |
} |
|
PB_DS_CLASS_T_DEC |
void |
PB_DS_CLASS_C_DEC:: |
do_resize(size_type) |
{ |
// Do nothing |
} |
|
PB_DS_CLASS_T_DEC |
Trigger_Policy& |
PB_DS_CLASS_C_DEC:: |
get_trigger_policy() |
{ return *this; } |
|
PB_DS_CLASS_T_DEC |
const Trigger_Policy& |
PB_DS_CLASS_C_DEC:: |
get_trigger_policy() const |
{ return *this; } |
|
PB_DS_CLASS_T_DEC |
Size_Policy& |
PB_DS_CLASS_C_DEC:: |
get_size_policy() |
{ return *this; } |
|
PB_DS_CLASS_T_DEC |
const Size_Policy& |
PB_DS_CLASS_C_DEC:: |
get_size_policy() const |
{ return *this; } |
|