old-autovect-branch/libstdc++-v3/include/ext/pb_assoc/detail/hash_types_traits.hpp

   1 // -*- C++ -*-
   2
   3 // Copyright (C) 2005 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
   7 // terms of the GNU General Public License as published by the
   8 // Free Software Foundation; either version 2, or (at your option)
   9 // any later version.
  10
  11 // This library is distributed in the hope that it will be useful,
  12 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  13 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14 // GNU General Public License for more details.
  15
  16 // You should have received a copy of the GNU General Public License along
  17 // with this library; see the file COPYING.  If not, write to the Free
  18 // Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,
  19 // USA.
  20
  21 // As a special exception, you may use this file as part of a free software
  22 // library without restriction.  Specifically, if other files instantiate
  23 // templates or use macros or inline functions from this file, or you compile
  24 // this file and link it with other files to produce an executable, this
  25 // file does not by itself cause the resulting executable to be covered by
  26 // the GNU General Public License.  This exception does not however
  27 // invalidate any other reasons why the executable file might be covered by
  28 // the GNU General Public License.
  29
  30 // Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.
  31
  32 // Permission to use, copy, modify, sell, and distribute this software
  33 // is hereby granted without fee, provided that the above copyright
  34 // notice appears in all copies, and that both that copyright notice and
  35 // this permission notice appear in supporting documentation. None of
  36 // the above authors, nor IBM Haifa Research Laboratories, make any
  37 // representation about the suitability of this software for any
  38 // purpose. It is provided "as is" without express or implied warranty.
  39
  40 /**
  41  * @file types_traits.hpp
  42  * Contains a traits class of types used by containers.
  43  */
  44
  45 #ifndef HASH_TYPES_TRAITS
  46 #define HASH_TYPES_TRAITS
  47
  48 #include <ext/pb_assoc/detail/type_utils.hpp>
  49
  50 namespace pb_assoc
  51 {
  52
  53   namespace detail
  54   {
  55
  56 #define PB_ASSOC_CLASS_T_DEC \
  57         template<typename Size_Type, bool Store_Hash>
  58
  59 #define PB_ASSOC_CLASS_C_DEC \
  60         hash_types_traits< \
  61                 Size_Type, \
  62                 Store_Hash>
  63
  64     template<typename Size_Type, bool Store_Hash>
  65     struct hash_types_traits
  66     {
  67     public:
  68       typedef
  69       typename cond_type<
  70         Store_Hash,
  71         std::pair<Size_Type, Size_Type>,
  72         Size_Type>::type
  73       comp_hash;
  74
  75       typedef int_to_type<false> store_hash_false_indicator;
  76
  77       typedef int_to_type<true> store_hash_true_indicator;
  78
  79       static pb_assoc::detail::int_to_type<Store_Hash>
  80       s_store_hash_indicator;
  81     };
  82
  83     PB_ASSOC_CLASS_T_DEC
  84     pb_assoc::detail::int_to_type<Store_Hash>
  85     PB_ASSOC_CLASS_C_DEC::s_store_hash_indicator;
  86
  87 #undef PB_ASSOC_CLASS_T_DEC
  88 #undef PB_ASSOC_CLASS_C_DEC
  89
  90   } // namespace detail
  91
  92 } // namespace pb_assoc
  93
  94 #endif // #ifndef HASH_TYPES_TRAITS