// -*- C++ -*- // Copyright (C) 2005, 2006 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, 59 Temple Place - Suite 330, Boston, // MA 02111-1307, 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_exponential_size_policy_imp.hpp * Contains a resize size policy implementation. */ PB_DS_CLASS_T_DEC PB_DS_CLASS_C_DEC:: hash_exponential_size_policy(size_type start_size, size_type grow_factor) : m_start_size(start_size), m_grow_factor(grow_factor) { } PB_DS_CLASS_T_DEC void PB_DS_CLASS_C_DEC:: swap(PB_DS_CLASS_C_DEC& other) { std::swap(m_start_size, other.m_start_size); std::swap(m_grow_factor, other.m_grow_factor); } PB_DS_CLASS_T_DEC typename PB_DS_CLASS_C_DEC::size_type PB_DS_CLASS_C_DEC:: get_nearest_larger_size(size_type size) const { size_type ret = m_start_size; while (ret <= size) { const size_type next_ret = ret* m_grow_factor; if (next_ret < ret) __throw_insert_error(); ret = next_ret; } return ret; } PB_DS_CLASS_T_DEC typename PB_DS_CLASS_C_DEC::size_type PB_DS_CLASS_C_DEC:: get_nearest_smaller_size(size_type size) const { size_type ret = m_start_size; while (true) { const size_type next_ret = ret* m_grow_factor; if (next_ret < ret) __throw_resize_error(); if (next_ret >= size) return (ret); ret = next_ret; } return ret; }