1 // -*- C++ -*- 2 3 // Copyright (C) 2005-2013 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_ranged_hash_fn.hpp 38 * Contains a ranged hash policy. 39 */ 40 41 #ifndef PB_DS_SAMPLE_RANGED_HASH_FN_HPP 42 #define PB_DS_SAMPLE_RANGED_HASH_FN_HPP 43 44 namespace __gnu_pbds 45 { 46 /// A sample ranged-hash functor. 47 class sample_ranged_hash_fn 48 { 49 public: 50 typedef std::size_t size_type; 51 52 /// Default constructor. 53 sample_ranged_hash_fn(); 54 55 /// Copy constructor. 56 sample_ranged_hash_fn(const sample_ranged_hash_fn&); 57 58 /// Swaps content. 59 inline void 60 swap(sample_ranged_hash_fn&); 61 62 protected: 63 64 /// Notifies the policy object that the container's __size has 65 /// changed to size. 66 void 67 notify_resized(size_type); 68 69 /// Transforms key_const_reference into a position within the table. 70 inline size_type 71 operator()(key_const_reference) const; 72 73 }; 74 } 75 #endif // #ifndef PB_DS_SAMPLE_RANGED_HASH_FN_HPP 76
