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  1. // -*- C++ -*-
  2.  
  3. // Copyright (C) 2005-2015 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.