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 types_traits.hpp
44 * Contains a traits class of types used by containers.
45 */
46
47#ifndef PB_DS_TYPES_TRAITS_HPP
48#define PB_DS_TYPES_TRAITS_HPP
49
50#include <ext/pb_ds/detail/basic_types.hpp>
51#include <ext/pb_ds/detail/type_utils.hpp>
52#include <utility>
53
54namespace pb_ds
55{
56  namespace detail
57  {
58    template<typename Key, typename Mapped, typename Alloc, bool Store_Extra>
59    struct vt_base_selector
60    {
61      typedef value_type_base<Key, Mapped, Alloc, Store_Extra> type;
62    };
63
64    template<typename Key, typename Mapped, typename Alloc, bool Store_Extra>
65    struct types_traits
66    : public vt_base_selector<Key, Mapped, Alloc, Store_Extra>::type
67    {
68      typedef typename Alloc::template rebind<Key>::other key_allocator;
69      typedef typename key_allocator::value_type key_type;
70      typedef typename key_allocator::pointer key_pointer;
71      typedef typename key_allocator::const_pointer const_key_pointer;
72      typedef typename key_allocator::reference key_reference;
73      typedef typename key_allocator::const_reference const_key_reference;
74      typedef typename Alloc::size_type size_type;
75
76      // Extra value (used when the extra value is stored with each value).
77      typedef std::pair<size_type, size_type> comp_hash;
78
79      integral_constant<int, Store_Extra> m_store_extra_indicator;
80      typename no_throw_copies<Key, Mapped>::indicator m_no_throw_copies_indicator;
81    };
82  } // namespace detail
83} // namespace pb_ds
84
85#endif
86