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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 views/map_view.hpp
/// \brief View of a side of a bimap that is signature compatible with std::map.
#ifndef BOOST_BIMAP_VIEWS_MAP_VIEW_HPP
#define BOOST_BIMAP_VIEWS_MAP_VIEW_HPP
#if defined(_MSC_VER)
#pragma once
#endif
#include <boost/config.hpp>
#include <boost/bimap/container_adaptor/map_adaptor.hpp>
#include <boost/bimap/detail/map_view_base.hpp>
namespace boost {
namespace bimaps {
namespace views {
/// \brief View of a side of a bimap that is signature compatible with std::map.
/**
This class uses container_adaptor and iterator_adaptor to wrapped a index of the
multi_index bimap core so it can be used as a std::map.
See also const_map_view.
**/
template< class Tag, class BimapType >
class map_view
:
public BOOST_BIMAP_MAP_VIEW_CONTAINER_ADAPTOR(
map_adaptor,
Tag,BimapType,
reverse_map_view_iterator,const_reverse_map_view_iterator
),
public ::boost::bimaps::detail::
map_view_base< map_view<Tag,BimapType>,Tag,BimapType >,
public ::boost::bimaps::detail::
unique_map_view_access< map_view<Tag,BimapType>, Tag, BimapType>::type
{
typedef BOOST_BIMAP_MAP_VIEW_CONTAINER_ADAPTOR(
map_adaptor,
Tag,BimapType,
reverse_map_view_iterator,const_reverse_map_view_iterator
) base_;
BOOST_BIMAP_MAP_VIEW_BASE_FRIEND(map_view,Tag,BimapType)
typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::detail::
unique_map_view_access<
map_view<Tag,BimapType>, Tag, BimapType
>::type unique_map_view_access_;
public:
typedef BOOST_DEDUCED_TYPENAME base_::value_type::info_type info_type;
map_view(BOOST_DEDUCED_TYPENAME base_::base_type & c) : base_(c) {}
using unique_map_view_access_::at;
using unique_map_view_access_::operator[];
BOOST_BIMAP_MAP_VIEW_RANGE_IMPLEMENTATION(base_)
map_view & operator=(const map_view & v)
{
this->base() = v.base();
return *this;
}
// It can be used enable_if here but the error message when there
// is no info is very clear like this
template< class CompatibleKey >
const info_type & info_at(const CompatibleKey& k) const
{
BOOST_DEDUCED_TYPENAME base_::const_iterator iter = this->find(k);
if( iter == this->end() )
{
::boost::throw_exception(
std::out_of_range("bimap<>: invalid key")
);
}
return iter->info;
}
template< class CompatibleKey >
info_type & info_at(const CompatibleKey& k)
{
BOOST_DEDUCED_TYPENAME base_::iterator iter = this->find(k);
if( iter == this->end() )
{
::boost::throw_exception(
std::out_of_range("bimap<>: invalid key")
);
}
return iter->info;
}
};
} // namespace views
/*===========================================================================*/
#define BOOST_BIMAP_MAP_VIEW_EXTRA_TYPEDEF(MAP_VIEW,SIDE,TYPENAME) \
typedef BOOST_DEDUCED_TYPENAME MAP_VIEW::TYPENAME \
BOOST_PP_CAT(SIDE,BOOST_PP_CAT(_,TYPENAME));
/*===========================================================================*/
/*===========================================================================*/
#define BOOST_BIMAP_MAP_VIEW_EXTRA_TYPEDEFS_BODY(MAP_VIEW,SIDE) \
BOOST_BIMAP_MAP_VIEW_EXTRA_TYPEDEF(MAP_VIEW,SIDE,reverse_iterator) \
BOOST_BIMAP_MAP_VIEW_EXTRA_TYPEDEF(MAP_VIEW,SIDE,const_reverse_iterator) \
BOOST_BIMAP_MAP_VIEW_EXTRA_TYPEDEF(MAP_VIEW,SIDE,range_type) \
BOOST_BIMAP_MAP_VIEW_EXTRA_TYPEDEF(MAP_VIEW,SIDE,const_range_type) \
BOOST_BIMAP_MAP_VIEW_EXTRA_TYPEDEF(MAP_VIEW,SIDE,key_compare)
/*===========================================================================*/
namespace detail {
template< class Tag, class BimapType >
struct left_map_view_extra_typedefs< ::boost::bimaps::views::map_view<Tag,BimapType> >
{
private: typedef ::boost::bimaps::views::map_view<Tag,BimapType> map_view_;
public : BOOST_BIMAP_MAP_VIEW_EXTRA_TYPEDEFS_BODY(map_view_,left)
};
template< class Tag, class BimapType >
struct right_map_view_extra_typedefs< ::boost::bimaps::views::map_view<Tag,BimapType> >
{
private: typedef ::boost::bimaps::views::map_view<Tag,BimapType> map_view_;
public : BOOST_BIMAP_MAP_VIEW_EXTRA_TYPEDEFS_BODY(map_view_,right)
};
} // namespace detail
/*===========================================================================*/
#undef BOOST_BIMAP_MAP_VIEW_EXTRA_TYPEDEF
#undef BOOST_BIMAP_MAP_VIEW_EXTRA_TYPEDEFS_BODY
/*===========================================================================*/
} // namespace bimaps
} // namespace boost
#endif // BOOST_BIMAP_VIEWS_MAP_VIEW_HPP
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