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// -*- C++ -*-

// Copyright (C) 2005, 2006, 2009 Free Software Foundation, Inc.

//

// This file is part of the GNU ISO C++ Library.  This library is free

// software; you can redistribute it and/or modify it under the terms

// of the GNU General Public License as published by the Free Software

// Foundation; either version 3, or (at your option) any later

// version.

// This library is distributed in the hope that it will be useful, but

// WITHOUT ANY WARRANTY; without even the implied warranty of

// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU

// General Public License for more details.

// Under Section 7 of GPL version 3, you are granted additional

// permissions described in the GCC Runtime Library Exception, version

// 3.1, as published by the Free Software Foundation.

// You should have received a copy of the GNU General Public License and

// a copy of the GCC Runtime Library Exception along with this program;

// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see

// <http://www.gnu.org/licenses/>.

// Copyright (C) 2004 Ami Tavory and Vladimir Dreizin, IBM-HRL.

// Permission to use, copy, modify, sell, and distribute this software

// is hereby granted without fee, provided that the above copyright

// notice appears in all copies, and that both that copyright notice

// and this permission notice appear in supporting documentation. None

// of the above authors, nor IBM Haifa Research Laboratories, make any

// representation about the suitability of this software for any

// purpose. It is provided "as is" without express or implied

// warranty.

/**

 * @file types_traits.hpp

 * Contains a traits class of types used by containers.

 */

#ifndef PB_DS_TYPES_TRAITS_HPP

#define PB_DS_TYPES_TRAITS_HPP

#include <ext/pb_ds/detail/basic_types.hpp>

#include <ext/pb_ds/detail/type_utils.hpp>

#include <utility>

namespace __gnu_pbds

{

  namespace detail

  {

    template<typename Key, typename Mapped, typename Alloc, bool Store_Extra>

    struct vt_base_selector

    {

      typedef value_type_base<Key, Mapped, Alloc, Store_Extra> type;

    };

    template<typename Key, typename Mapped, typename Alloc, bool Store_Extra>

    struct types_traits

    : public vt_base_selector<Key, Mapped, Alloc, Store_Extra>::type

    {

      typedef typename Alloc::template rebind<Key>::other key_allocator;

      typedef typename key_allocator::value_type key_type;

      typedef typename key_allocator::pointer key_pointer;

      typedef typename key_allocator::const_pointer const_key_pointer;

      typedef typename key_allocator::reference key_reference;

      typedef typename key_allocator::const_reference const_key_reference;

      typedef typename Alloc::size_type size_type;

      // Extra value (used when the extra value is stored with each value).

      typedef std::pair<size_type, size_type>   comp_hash;

      typedef integral_constant<int, Store_Extra> store_extra;

      store_extra       m_store_extra_indicator;

      typedef typename no_throw_copies<Key, Mapped>::indicator no_throw_copies;

      no_throw_copies   m_no_throw_copies_indicator;

    };

  } // namespace detail

} // namespace __gnu_pbds

#endif