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// Boost.Bimap
//
// Copyright (c) 2006-2007 Matias Capeletto
//
// Distributed under the Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt)

/// \file support/iterator_type_by.hpp
/// \brief Metafunctions to access the iterator types of a bimap

#ifndef BOOST_BIMAP_SUPPORT_ITERATOR_TYPE_BY_HPP
#define BOOST_BIMAP_SUPPORT_ITERATOR_TYPE_BY_HPP

#if defined(_MSC_VER) && (_MSC_VER>=1200)
#pragma once
#endif

#include <boost/config.hpp>

#include <boost/bimap/relation/detail/metadata_access_builder.hpp>
#include <boost/bimap/relation/detail/static_access_builder.hpp>

#include <boost/bimap/relation/support/pair_type_by.hpp>

#include <boost/bimap/detail/map_view_iterator.hpp>

/** \struct boost::bimaps::support::iterator_type_by

\brief Metafunction to obtain the iterator type of the map view by one of the sides.

\code

template< class Tag, class Bimap >
struct iterator_type_by
{
    typedef -unspecified- type;
};

template< class Tag, class Bimap >
struct const_iterator_type_by
{
    typedef -unspecified- type;
};

template< class Tag, class Bimap >
struct reverse_iterator_type_by
{
    typedef -unspecified- type;
};

template< class Tag, class Bimap >
struct const_reverse_iterator_type_by
{
    typedef -unspecified- type;
};

template< class Tag, class Bimap >
struct local_iterator_type_by
{
    typedef -unspecified- type;
};

template< class Tag, class Bimap >
struct const_local_iterator_type_by
{
    typedef -unspecified- type;
};

\endcode

See also member_at.
\ingroup bimap_group
                                                                    **/

#ifndef BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES

namespace boost {
namespace bimaps {
namespace support {


// Implementation of iterator type by metafunction

BOOST_BIMAP_SYMMETRIC_METADATA_ACCESS_BUILDER
(
    iterator_type_by,
    left_iterator,
    right_iterator
)

// Implementation of const iterator type by metafunction

BOOST_BIMAP_SYMMETRIC_METADATA_ACCESS_BUILDER
(
    const_iterator_type_by,
    left_const_iterator,
    right_const_iterator
)


// Implementation of reverse iterator type by metafunction

BOOST_BIMAP_SYMMETRIC_STATIC_ACCESS_BUILDER
(
    core_reverse_iterator_type_by,
    BimapCore,

    typedef BOOST_DEDUCED_TYPENAME BimapCore::core_type::BOOST_NESTED_TEMPLATE
        index<BOOST_DEDUCED_TYPENAME BimapCore::left_tag>
            ::type::reverse_iterator type,

    typedef BOOST_DEDUCED_TYPENAME BimapCore::core_type::BOOST_NESTED_TEMPLATE
        index<BOOST_DEDUCED_TYPENAME BimapCore::right_tag>
            ::type::reverse_iterator type
)

template< class Tag, class BimapCore >
struct reverse_iterator_type_by
{
    typedef ::boost::bimaps::detail::map_view_iterator
    <
        Tag,
        BOOST_DEDUCED_TYPENAME BimapCore::relation,
        BOOST_DEDUCED_TYPENAME core_reverse_iterator_type_by<Tag,BimapCore>::type

    > type;
};

// Implementation of const reverse iterator type by metafunction

BOOST_BIMAP_SYMMETRIC_STATIC_ACCESS_BUILDER
(
    core_const_reverse_iterator_type_by,
    BimapCore,

    typedef BOOST_DEDUCED_TYPENAME BimapCore::core_type::BOOST_NESTED_TEMPLATE
        index<BOOST_DEDUCED_TYPENAME BimapCore::left_tag>
            ::type::const_reverse_iterator type,

    typedef BOOST_DEDUCED_TYPENAME BimapCore::core_type::BOOST_NESTED_TEMPLATE
        index<BOOST_DEDUCED_TYPENAME BimapCore::right_tag>
            ::type::const_reverse_iterator type
)

template< class Tag, class BimapCore >
struct const_reverse_iterator_type_by
{

    typedef ::boost::bimaps::detail::map_view_iterator
    <
        Tag,
        BOOST_DEDUCED_TYPENAME BimapCore::relation,
        BOOST_DEDUCED_TYPENAME core_const_reverse_iterator_type_by<Tag,BimapCore>::type

    > type;
};


// Implementation of local iterator type by metafunction

BOOST_BIMAP_SYMMETRIC_STATIC_ACCESS_BUILDER
(
    core_local_iterator_type_by,
    BimapCore,

    typedef BOOST_DEDUCED_TYPENAME BimapCore::core_type::BOOST_NESTED_TEMPLATE
        index<BOOST_DEDUCED_TYPENAME BimapCore::left_tag>
            ::type::local_iterator type,

    typedef BOOST_DEDUCED_TYPENAME BimapCore::core_type::BOOST_NESTED_TEMPLATE
        index<BOOST_DEDUCED_TYPENAME BimapCore::right_tag>
            ::type::local_iterator type
)


template< class Tag, class BimapCore >
struct local_iterator_type_by
{

    typedef ::boost::bimaps::detail::map_view_iterator
    <
        Tag,
        BOOST_DEDUCED_TYPENAME BimapCore::relation,
        BOOST_DEDUCED_TYPENAME core_local_iterator_type_by<Tag,BimapCore>::type

    > type;
};


// Implementation of const local iterator type by metafunction

BOOST_BIMAP_SYMMETRIC_STATIC_ACCESS_BUILDER
(
    core_const_local_iterator_type_by,
    BimapCore,

    typedef BOOST_DEDUCED_TYPENAME BimapCore::core_type::BOOST_NESTED_TEMPLATE
        index<BOOST_DEDUCED_TYPENAME BimapCore::left_tag>
            ::type::const_local_iterator type,

    typedef BOOST_DEDUCED_TYPENAME BimapCore::core_type::BOOST_NESTED_TEMPLATE
        index<BOOST_DEDUCED_TYPENAME BimapCore::right_tag>
            ::type::const_local_iterator type
)

template< class Tag, class BimapCore >
struct const_local_iterator_type_by
{

    typedef ::boost::bimaps::detail::map_view_iterator
    <
        Tag,
        BOOST_DEDUCED_TYPENAME BimapCore::relation,
        BOOST_DEDUCED_TYPENAME core_const_local_iterator_type_by<Tag,BimapCore>::type

    > type;
};


} // namespace support
} // namespace bimaps
} // namespace boost

#endif // BOOST_BIMAP_DOXYGEN_WILL_NOT_PROCESS_THE_FOLLOWING_LINES

#endif // BOOST_BIMAP_SUPPORT_ITERATOR_TYPE_BY_HPP
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