Home | History | Annotate | Download | only in resize_policy 
      1 // -*- C++ -*-
      2 
      3 // Copyright (C) 2005, 2006, 2009 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 hash_load_check_resize_trigger_size_base.hpp
     38  * Contains an base holding size for some resize policies.
     39  */
     40 
     41 #ifndef PB_DS_HASH_LOAD_CHECK_RESIZE_TRIGGER_SIZE_BASE_HPP
     42 #define PB_DS_HASH_LOAD_CHECK_RESIZE_TRIGGER_SIZE_BASE_HPP
     43 
     44 namespace __gnu_pbds
     45 {
     46   namespace detail
     47   {
     48     // Primary template.
     49     template<typename Size_Type, bool Hold_Size>
     50     class hash_load_check_resize_trigger_size_base;
     51 
     52     // Specializations.
     53     template<typename Size_Type>
     54     class hash_load_check_resize_trigger_size_base<Size_Type, true>
     55     {
     56     protected:
     57       typedef Size_Type size_type;
     58 
     59       hash_load_check_resize_trigger_size_base(): m_size(0)
     60       { }
     61 
     62       inline void
     63       swap(hash_load_check_resize_trigger_size_base& other)
     64       { std::swap(m_size, other.m_size); }
     65 
     66       inline void
     67       set_size(size_type size)
     68       { m_size = size; }
     69 
     70       inline size_type
     71       get_size() const
     72       { return m_size; }
     73 
     74     private:
     75       size_type m_size;
     76     };
     77 
     78     template<typename Size_Type>
     79     class hash_load_check_resize_trigger_size_base<Size_Type, false>
     80     {
     81     protected:
     82       typedef Size_Type size_type;
     83 
     84     protected:
     85       inline void
     86       swap(hash_load_check_resize_trigger_size_base& other) { }
     87 
     88       inline void
     89       set_size(size_type size) { }
     90     };
     91   } // namespace detail
     92 } // namespace __gnu_pbds
     93 
     94 #endif
     95