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Diffstat (limited to 'boost/bimap/views/unordered_map_view.hpp')
-rw-r--r-- | boost/bimap/views/unordered_map_view.hpp | 174 |
1 files changed, 174 insertions, 0 deletions
diff --git a/boost/bimap/views/unordered_map_view.hpp b/boost/bimap/views/unordered_map_view.hpp new file mode 100644 index 0000000000..14813e2fce --- /dev/null +++ b/boost/bimap/views/unordered_map_view.hpp @@ -0,0 +1,174 @@ +// 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/unordered_map_view.hpp +/// \brief View of a side of a bimap that is signature compatible with tr1::unordered_map. + +#ifndef BOOST_BIMAP_VIEWS_UNOREDERED_MAP_VIEW_HPP +#define BOOST_BIMAP_VIEWS_UNOREDERED_MAP_VIEW_HPP + +#if defined(_MSC_VER) && (_MSC_VER>=1200) +#pragma once +#endif + +#include <boost/config.hpp> + +#include <utility> + +#include <boost/bimap/container_adaptor/unordered_map_adaptor.hpp> +#include <boost/bimap/detail/map_view_base.hpp> + +namespace boost { +namespace bimaps { +namespace views { + +/// \brief Map View of a bimap, signature compatible with tr1::unordered_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 tr1::unordered_map. + +See also const_unordered_map_view. + **/ + + +template< class Tag, class BimapType > +class unordered_map_view +: + public BOOST_BIMAP_MAP_VIEW_CONTAINER_ADAPTOR( + unordered_map_adaptor, + Tag,BimapType, + local_iterator_type_by,const_local_iterator_type_by + ), + + public ::boost::bimaps::detail::map_view_base< + unordered_map_view<Tag,BimapType>,Tag,BimapType >, + public ::boost::bimaps::detail:: + unique_map_view_access< + unordered_map_view<Tag,BimapType>, Tag, BimapType>::type + +{ + typedef BOOST_BIMAP_MAP_VIEW_CONTAINER_ADAPTOR( + unordered_map_adaptor, + Tag,BimapType, + local_iterator_type_by,const_local_iterator_type_by + + ) base_; + + BOOST_BIMAP_MAP_VIEW_BASE_FRIEND(unordered_map_view,Tag,BimapType) + + typedef BOOST_DEDUCED_TYPENAME ::boost::bimaps::detail:: + unique_map_view_access< + unordered_map_view<Tag,BimapType>, Tag, BimapType + + >::type unique_map_view_access_; + + public: + + typedef std::pair< + BOOST_DEDUCED_TYPENAME base_::iterator, + BOOST_DEDUCED_TYPENAME base_::iterator + > range_type; + + typedef std::pair< + BOOST_DEDUCED_TYPENAME base_::const_iterator, + BOOST_DEDUCED_TYPENAME base_::const_iterator + > const_range_type; + + typedef BOOST_DEDUCED_TYPENAME base_::value_type::info_type info_type; + + unordered_map_view(BOOST_DEDUCED_TYPENAME base_::base_type & c) + : base_(c) {} + + using unique_map_view_access_::at; + using unique_map_view_access_::operator[]; + + unordered_map_view & operator=(const unordered_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,local_iterator) \ + BOOST_BIMAP_MAP_VIEW_EXTRA_TYPEDEF(MAP_VIEW,SIDE,const_local_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,hasher) \ + BOOST_BIMAP_MAP_VIEW_EXTRA_TYPEDEF(MAP_VIEW,SIDE,key_equal) +/*===========================================================================*/ + +namespace detail { + +template< class Tag, class BimapType > +struct left_map_view_extra_typedefs< ::boost::bimaps::views::unordered_map_view<Tag,BimapType> > +{ + private: typedef ::boost::bimaps::views::unordered_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::unordered_map_view<Tag,BimapType> > +{ + private: typedef ::boost::bimaps::views::unordered_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_UNOREDERED_MAP_VIEW_HPP + + |