libstdc++-v3/include/ext/pb_ds/detail/resize_policy/hash_load_check_resize_trigger_size_base.hpp

   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 hash_load_check_resize_trigger_size_base.hpp
  44  * Contains an base holding size for some resize policies.
  45  */
  46
  47 #ifndef PB_DS_HASH_LOAD_CHECK_RESIZE_TRIGGER_SIZE_BASE_HPP
  48 #define PB_DS_HASH_LOAD_CHECK_RESIZE_TRIGGER_SIZE_BASE_HPP
  49
  50 namespace pb_ds
  51 {
  52   namespace detail
  53   {
  54     // Primary template.
  55     template<typename Size_Type, bool Hold_Size>
  56     class hash_load_check_resize_trigger_size_base;
  57
  58     // Specializations.
  59     template<typename Size_Type>
  60     class hash_load_check_resize_trigger_size_base<Size_Type, true>
  61     {
  62     protected:
  63       typedef Size_Type size_type;
  64
  65       hash_load_check_resize_trigger_size_base(): m_size(0)
  66       { }
  67
  68       inline void
  69       swap(hash_load_check_resize_trigger_size_base& other)
  70       { std::swap(m_size, other.m_size); }
  71
  72       inline void
  73       set_size(size_type size)
  74       { m_size = size; }
  75
  76       inline size_type
  77       get_size() const
  78       { return m_size; }
  79
  80     private:
  81       size_type m_size;
  82     };
  83
  84     template<typename Size_Type>
  85     class hash_load_check_resize_trigger_size_base<Size_Type, false>
  86     {
  87     protected:
  88       typedef Size_Type size_type;
  89
  90     protected:
  91       inline void
  92       swap(hash_load_check_resize_trigger_size_base& other) { }
  93
  94       inline void
  95       set_size(size_type size) { }
  96     };
  97   } // namespace detail
  98 } // namespace pb_ds
  99
 100 #endif