libstdc++
gp_hash_table_map_/standard_policies.hpp
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00001 // -*- C++ -*-
00002 
00003 // Copyright (C) 2005, 2006, 2009, 2010 Free Software Foundation, Inc.
00004 //
00005 // This file is part of the GNU ISO C++ Library.  This library is free
00006 // software; you can redistribute it and/or modify it under the terms
00007 // of the GNU General Public License as published by the Free Software
00008 // Foundation; either version 3, or (at your option) any later
00009 // version.
00010 
00011 // This library is distributed in the hope that it will be useful, but
00012 // WITHOUT ANY WARRANTY; without even the implied warranty of
00013 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00014 // General Public License for more details.
00015 
00016 // Under Section 7 of GPL version 3, you are granted additional
00017 // permissions described in the GCC Runtime Library Exception, version
00018 // 3.1, as published by the Free Software Foundation.
00019 
00020 // You should have received a copy of the GNU General Public License and
00021 // a copy of the GCC Runtime Library Exception along with this program;
00022 // see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
00023 // <http://www.gnu.org/licenses/>.
00024 
00025 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
00026 
00027 // Permission to use, copy, modify, sell, and distribute this software
00028 // is hereby granted without fee, provided that the above copyright
00029 // notice appears in all copies, and that both that copyright notice
00030 // and this permission notice appear in supporting documentation. None
00031 // of the above authors, nor IBM Haifa Research Laboratories, make any
00032 // representation about the suitability of this software for any
00033 // purpose. It is provided "as is" without express or implied
00034 // warranty.
00035 
00036 /**
00037  * @file gp_hash_table_map_/standard_policies.hpp
00038  * Contains standard policies for gp_ht_map types.
00039  */
00040 
00041 #ifndef PB_DS_GP_HT_MAP_STANDARD_POLICIES_HPP
00042 #define PB_DS_GP_HT_MAP_STANDARD_POLICIES_HPP
00043 
00044 #include <ext/pb_ds/detail/standard_policies.hpp>
00045 #include <ext/pb_ds/ht_load_check_resize_trigger.hpp>
00046 #include <ext/pb_ds/linear_probe_fn.hpp>
00047 #include <ext/pb_ds/quadratic_probe_fn.hpp>
00048 
00049 namespace __gnu_pbds
00050 {
00051   namespace detail
00052   {
00053     template<typename Comb_Probe_Fn>
00054     struct default_probe_fn
00055     {
00056     private:
00057       typedef typename Comb_Probe_Fn::size_type size_type;
00058 
00059     public:
00060       typedef
00061       typename __conditional_type<
00062       is_same<
00063     __gnu_pbds::direct_mask_range_hashing<std::size_t>,
00064       Comb_Probe_Fn>::value,
00065       __gnu_pbds::linear_probe_fn<size_type>,
00066       __gnu_pbds::quadratic_probe_fn<size_type> >::__type
00067       type;
00068     };
00069 
00070   } // namespace detail
00071 } // namespace __gnu_pbds
00072 
00073 #endif 
00074