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
50namespace 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
95