// -*- C++ -*-
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// -*- C++ -*-
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// Copyright (C) 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
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// Copyright (C) 2005, 2006, 2007, 2008, 2009 Free Software Foundation, Inc.
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//
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the terms
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// software; you can redistribute it and/or modify it under the terms
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// of the GNU General Public License as published by the Free Software
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// of the GNU General Public License as published by the Free Software
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// Foundation; either version 3, or (at your option) any later
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// Foundation; either version 3, or (at your option) any later
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// version.
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// version.
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// This library is distributed in the hope that it will be useful, but
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// This library is distributed in the hope that it will be useful, but
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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// General Public License for more details.
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// General Public License for more details.
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// Under Section 7 of GPL version 3, you are granted additional
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// Under Section 7 of GPL version 3, you are granted additional
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// permissions described in the GCC Runtime Library Exception, version
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// permissions described in the GCC Runtime Library Exception, version
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// 3.1, as published by the Free Software Foundation.
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// 3.1, as published by the Free Software Foundation.
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// You should have received a copy of the GNU General Public License and
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// You should have received a copy of the GNU General Public License and
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// a copy of the GCC Runtime Library Exception along with this program;
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// a copy of the GCC Runtime Library Exception along with this program;
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
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// <http://www.gnu.org/licenses/>.
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// <http://www.gnu.org/licenses/>.
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
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// Permission to use, copy, modify, sell, and distribute this software
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// Permission to use, copy, modify, sell, and distribute this software
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// is hereby granted without fee, provided that the above copyright
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// is hereby granted without fee, provided that the above copyright
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// notice appears in all copies, and that both that copyright notice
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// notice appears in all copies, and that both that copyright notice
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// and this permission notice appear in supporting documentation. None
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// and this permission notice appear in supporting documentation. None
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// of the above authors, nor IBM Haifa Research Laboratories, make any
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// of the above authors, nor IBM Haifa Research Laboratories, make any
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// representation about the suitability of this software for any
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// representation about the suitability of this software for any
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// purpose. It is provided "as is" without express or implied
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// purpose. It is provided "as is" without express or implied
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// warranty.
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// warranty.
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/**
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/**
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* @file hash_standard_resize_policy_imp.hpp
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* @file hash_standard_resize_policy_imp.hpp
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* Contains a resize policy implementation.
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* Contains a resize policy implementation.
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*/
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*/
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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hash_standard_resize_policy()
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hash_standard_resize_policy()
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: m_size(Size_Policy::get_nearest_larger_size(1))
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: m_size(Size_Policy::get_nearest_larger_size(1))
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{ trigger_policy_base::notify_externally_resized(m_size); }
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{ trigger_policy_base::notify_externally_resized(m_size); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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hash_standard_resize_policy(const Size_Policy& r_size_policy)
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hash_standard_resize_policy(const Size_Policy& r_size_policy)
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: Size_Policy(r_size_policy), m_size(Size_Policy::get_nearest_larger_size(1))
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: Size_Policy(r_size_policy), m_size(Size_Policy::get_nearest_larger_size(1))
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{ trigger_policy_base::notify_externally_resized(m_size); }
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{ trigger_policy_base::notify_externally_resized(m_size); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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hash_standard_resize_policy(const Size_Policy& r_size_policy,
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hash_standard_resize_policy(const Size_Policy& r_size_policy,
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const Trigger_Policy& r_trigger_policy)
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const Trigger_Policy& r_trigger_policy)
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: Size_Policy(r_size_policy), Trigger_Policy(r_trigger_policy),
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: Size_Policy(r_size_policy), Trigger_Policy(r_trigger_policy),
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m_size(Size_Policy::get_nearest_larger_size(1))
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m_size(Size_Policy::get_nearest_larger_size(1))
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{ trigger_policy_base::notify_externally_resized(m_size); }
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{ trigger_policy_base::notify_externally_resized(m_size); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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~hash_standard_resize_policy()
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~hash_standard_resize_policy()
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{ }
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{ }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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void
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void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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swap(PB_DS_CLASS_C_DEC& other)
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swap(PB_DS_CLASS_C_DEC& other)
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{
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{
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trigger_policy_base::swap(other);
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trigger_policy_base::swap(other);
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size_policy_base::swap(other);
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size_policy_base::swap(other);
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std::swap(m_size, other.m_size);
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std::swap(m_size, other.m_size);
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}
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}
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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inline void
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inline void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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notify_find_search_start()
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notify_find_search_start()
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{ trigger_policy_base::notify_find_search_start(); }
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{ trigger_policy_base::notify_find_search_start(); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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inline void
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inline void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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notify_find_search_collision()
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notify_find_search_collision()
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{ trigger_policy_base::notify_find_search_collision(); }
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{ trigger_policy_base::notify_find_search_collision(); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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inline void
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inline void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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notify_find_search_end()
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notify_find_search_end()
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{ trigger_policy_base::notify_find_search_end(); }
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{ trigger_policy_base::notify_find_search_end(); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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inline void
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inline void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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notify_insert_search_start()
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notify_insert_search_start()
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{ trigger_policy_base::notify_insert_search_start(); }
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{ trigger_policy_base::notify_insert_search_start(); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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inline void
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inline void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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notify_insert_search_collision()
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notify_insert_search_collision()
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{ trigger_policy_base::notify_insert_search_collision(); }
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{ trigger_policy_base::notify_insert_search_collision(); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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inline void
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inline void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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notify_insert_search_end()
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notify_insert_search_end()
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{ trigger_policy_base::notify_insert_search_end(); }
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{ trigger_policy_base::notify_insert_search_end(); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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inline void
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inline void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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notify_erase_search_start()
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notify_erase_search_start()
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{ trigger_policy_base::notify_erase_search_start(); }
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{ trigger_policy_base::notify_erase_search_start(); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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inline void
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inline void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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notify_erase_search_collision()
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notify_erase_search_collision()
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{ trigger_policy_base::notify_erase_search_collision(); }
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{ trigger_policy_base::notify_erase_search_collision(); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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inline void
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inline void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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notify_erase_search_end()
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notify_erase_search_end()
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{ trigger_policy_base::notify_erase_search_end(); }
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{ trigger_policy_base::notify_erase_search_end(); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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inline void
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inline void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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notify_inserted(size_type num_e)
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notify_inserted(size_type num_e)
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{ trigger_policy_base::notify_inserted(num_e); }
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{ trigger_policy_base::notify_inserted(num_e); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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inline void
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inline void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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notify_erased(size_type num_e)
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notify_erased(size_type num_e)
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{ trigger_policy_base::notify_erased(num_e); }
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{ trigger_policy_base::notify_erased(num_e); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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void
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void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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notify_cleared()
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notify_cleared()
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{ trigger_policy_base::notify_cleared(); }
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{ trigger_policy_base::notify_cleared(); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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inline bool
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inline bool
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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is_resize_needed() const
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is_resize_needed() const
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{ return trigger_policy_base::is_resize_needed(); }
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{ return trigger_policy_base::is_resize_needed(); }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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typename PB_DS_CLASS_C_DEC::size_type
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typename PB_DS_CLASS_C_DEC::size_type
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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get_new_size(size_type size, size_type num_used_e) const
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get_new_size(size_type size, size_type num_used_e) const
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{
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{
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if (trigger_policy_base::is_grow_needed(size, num_used_e))
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if (trigger_policy_base::is_grow_needed(size, num_used_e))
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return size_policy_base::get_nearest_larger_size(size);
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return size_policy_base::get_nearest_larger_size(size);
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return size_policy_base::get_nearest_smaller_size(size);
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return size_policy_base::get_nearest_smaller_size(size);
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}
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}
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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void
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void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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notify_resized(size_type new_size)
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notify_resized(size_type new_size)
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{
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{
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trigger_policy_base::notify_resized(new_size);
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trigger_policy_base::notify_resized(new_size);
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m_size = new_size;
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m_size = new_size;
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}
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}
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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inline typename PB_DS_CLASS_C_DEC::size_type
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inline typename PB_DS_CLASS_C_DEC::size_type
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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get_actual_size() const
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get_actual_size() const
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{
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{
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PB_DS_STATIC_ASSERT(access, external_size_access);
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PB_DS_STATIC_ASSERT(access, external_size_access);
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return m_size;
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return m_size;
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}
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}
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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void
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void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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resize(size_type new_size)
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resize(size_type new_size)
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{
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{
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PB_DS_STATIC_ASSERT(access, external_size_access);
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PB_DS_STATIC_ASSERT(access, external_size_access);
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size_type actual_size = size_policy_base::get_nearest_larger_size(1);
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size_type actual_size = size_policy_base::get_nearest_larger_size(1);
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while (actual_size < new_size)
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while (actual_size < new_size)
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{
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{
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const size_type pot = size_policy_base::get_nearest_larger_size(actual_size);
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const size_type pot = size_policy_base::get_nearest_larger_size(actual_size);
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if (pot == actual_size && pot < new_size)
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if (pot == actual_size && pot < new_size)
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__throw_resize_error();
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__throw_resize_error();
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actual_size = pot;
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actual_size = pot;
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}
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}
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if (actual_size > 0)
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if (actual_size > 0)
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--actual_size;
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--actual_size;
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const size_type old_size = m_size;
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const size_type old_size = m_size;
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__try
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__try
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{
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{
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do_resize(actual_size - 1);
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do_resize(actual_size - 1);
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}
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}
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__catch(insert_error& )
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__catch(insert_error& )
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{
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{
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m_size = old_size;
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m_size = old_size;
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__throw_resize_error();
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__throw_resize_error();
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}
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}
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__catch(...)
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__catch(...)
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{
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{
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m_size = old_size;
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m_size = old_size;
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__throw_exception_again;
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__throw_exception_again;
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}
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}
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}
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}
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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void
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void
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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do_resize(size_type)
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do_resize(size_type)
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{
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{
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// Do nothing
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// Do nothing
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}
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}
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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Trigger_Policy&
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Trigger_Policy&
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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get_trigger_policy()
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get_trigger_policy()
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{ return *this; }
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{ return *this; }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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const Trigger_Policy&
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const Trigger_Policy&
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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get_trigger_policy() const
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get_trigger_policy() const
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{ return *this; }
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{ return *this; }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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Size_Policy&
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Size_Policy&
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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get_size_policy()
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get_size_policy()
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{ return *this; }
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{ return *this; }
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PB_DS_CLASS_T_DEC
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PB_DS_CLASS_T_DEC
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const Size_Policy&
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const Size_Policy&
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PB_DS_CLASS_C_DEC::
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PB_DS_CLASS_C_DEC::
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get_size_policy() const
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get_size_policy() const
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{ return *this; }
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{ return *this; }
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