1// -*- C++ -*- 2 3// Copyright (C) 2005-2020 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 3, 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// Under Section 7 of GPL version 3, you are granted additional 17// permissions described in the GCC Runtime Library Exception, version 18// 3.1, as published by the Free Software Foundation. 19 20// You should have received a copy of the GNU General Public License and 21// a copy of the GCC Runtime Library Exception along with this program; 22// see the files COPYING3 and COPYING.RUNTIME respectively. If not, see 23// <http://www.gnu.org/licenses/>. 24 25// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL. 26 27// Permission to use, copy, modify, sell, and distribute this software 28// is hereby granted without fee, provided that the above copyright 29// notice appears in all copies, and that both that copyright notice 30// and this permission notice appear in supporting documentation. None 31// of the above authors, nor IBM Haifa Research Laboratories, make any 32// representation about the suitability of this software for any 33// purpose. It is provided "as is" without express or implied 34// warranty. 35 36/** 37 * @file sample_probe_fn.hpp 38 * Contains a sample probe policy. 39 */ 40 41#ifndef PB_DS_SAMPLE_PROBE_FN_HPP 42#define PB_DS_SAMPLE_PROBE_FN_HPP 43 44namespace __gnu_pbds 45{ 46 /// A sample probe policy. 47 class sample_probe_fn 48 { 49 public: 50 typedef std::size_t size_type; 51 52 /// Default constructor. 53 sample_probe_fn(); 54 55 /// Copy constructor. 56 sample_probe_fn(const sample_probe_fn&); 57 58 /// Swaps content. 59 inline void 60 swap(sample_probe_fn&); 61 62 protected: 63 /// Returns the i-th offset from the hash value of some key r_key. 64 inline size_type 65 operator()(key_const_reference r_key, size_type i) const; 66 }; 67} 68#endif // #ifndef PB_DS_SAMPLE_PROBE_FN_HPP 69