1// -*- C++ -*- 2 3// Copyright (C) 2005, 2006 Free Software Foundation, Inc. 4// 5// This file is part of the GNU ISO C++ Library. This library is free 6// software; you can redistribute it and/or modify it under the terms 7// of the GNU General Public License as published by the Free Software 8// Foundation; either version 2, or (at your option) any later 9// version. 10 11// This library is distributed in the hope that it will be useful, but 12// WITHOUT ANY WARRANTY; without even the implied warranty of 13// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 14// General Public License for more details. 15 16// You should have received a copy of the GNU General Public License 17// along with this library; see the file COPYING. If not, write to 18// the Free Software Foundation, 59 Temple Place - Suite 330, Boston, 19// MA 02111-1307, USA. 20 21// As a special exception, you may use this file as part of a free 22// software library without restriction. Specifically, if other files 23// instantiate templates or use macros or inline functions from this 24// file, or you compile this file and link it with other files to 25// produce an executable, this file does not by itself cause the 26// resulting executable to be covered by the GNU General Public 27// License. This exception does not however invalidate any other 28// reasons why the executable file might be covered by the GNU General 29// Public License. 30 31// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 32 33// Permission to use, copy, modify, sell, and distribute this software 34// is hereby granted without fee, provided that the above copyright 35// notice appears in all copies, and that both that copyright notice 36// and this permission notice appear in supporting documentation. None 37// of the above authors, nor IBM Haifa Research Laboratories, make any 38// representation about the suitability of this software for any 39// purpose. It is provided "as is" without express or implied 40// warranty. 41 42/** 43 * @file sample_size_policy.hpp 44 * Contains a sample size resize-policy. 45 */ 46 47#ifndef PB_DS_SAMPLE_SIZE_POLICY_HPP 48#define PB_DS_SAMPLE_SIZE_POLICY_HPP 49 50// A sample size policy. 51class sample_size_policy 52{ 53public: 54 55 // Size type. 56 typedef size_t size_type; 57 58 // Default constructor. 59 sample_size_policy(); 60 61 // Copy constructor. 62 sample_range_hashing(const sample_size_policy& other); 63 64 // Swaps content. 65 inline void 66 swap(sample_size_policy& other); 67 68protected: 69 70 // Given a __size size, returns a __size that is larger. 71 inline size_type 72 get_nearest_larger_size(size_type size) const; 73 74 // Given a __size size, returns a __size that is smaller. 75 inline size_type 76 get_nearest_smaller_size(size_type size) const; 77}; 78 79#endif 80