| 0,0 → 1,76 |
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| // -*- C++ -*- |
| |
| // Copyright (C) 2005-2015 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 3, 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. |
| |
| // Under Section 7 of GPL version 3, you are granted additional |
| // permissions described in the GCC Runtime Library Exception, version |
| // 3.1, as published by the Free Software Foundation. |
| |
| // You should have received a copy of the GNU General Public License and |
| // a copy of the GCC Runtime Library Exception along with this program; |
| // see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
| // <http://www.gnu.org/licenses/>. |
| |
| // 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 sample_update_policy.hpp |
| * Contains a sample policy for list update containers. |
| */ |
| |
| #ifndef PB_DS_SAMPLE_UPDATE_POLICY_HPP |
| #define PB_DS_SAMPLE_UPDATE_POLICY_HPP |
| |
| namespace __gnu_pbds |
| { |
| /// A sample list-update policy. |
| struct sample_update_policy |
| { |
| /// Default constructor. |
| sample_update_policy(); |
| |
| /// Copy constructor. |
| sample_update_policy(const sample_update_policy&); |
| |
| /// Swaps content. |
| inline void |
| swap(sample_update_policy& other); |
| |
| protected: |
| /// Metadata on which this functor operates. |
| typedef some_metadata_type metadata_type; |
| |
| /// Creates a metadata object. |
| metadata_type |
| operator()() const; |
| |
| /// Decides whether a metadata object should be moved to the front |
| /// of the list. A list-update based containers object will call |
| /// this method to decide whether to move a node to the front of |
| /// the list. The method shoule return true if the node should be |
| /// moved to the front of the list. |
| bool |
| operator()(metadata_reference) const; |
| }; |
| } |
| #endif |