| // Boost.Range library |
| // |
| // Copyright Thorsten Ottosen, Neil Groves 2006 - 2008. Use, modification and |
| // distribution is subject to 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) |
| // |
| // For more information, see http://www.boost.org/libs/range/ |
| // |
| |
| #ifndef BOOST_RANGE_ADAPTOR_INDIRECTED_HPP |
| #define BOOST_RANGE_ADAPTOR_INDIRECTED_HPP |
| |
| #include <boost/range/iterator_range.hpp> |
| #include <boost/iterator/indirect_iterator.hpp> |
| |
| namespace boost |
| { |
| namespace range_detail |
| { |
| template< class R > |
| struct indirect_range : |
| public boost::iterator_range< |
| boost::indirect_iterator< |
| BOOST_DEDUCED_TYPENAME range_iterator<R>::type |
| > |
| > |
| { |
| private: |
| typedef boost::iterator_range< |
| boost::indirect_iterator< |
| BOOST_DEDUCED_TYPENAME range_iterator<R>::type |
| > |
| > |
| base; |
| |
| public: |
| explicit indirect_range( R& r ) |
| : base( r ) |
| { } |
| }; |
| |
| struct indirect_forwarder {}; |
| |
| template< class InputRng > |
| inline indirect_range<InputRng> |
| operator|( InputRng& r, indirect_forwarder ) |
| { |
| return indirect_range<InputRng>( r ); |
| } |
| |
| template< class InputRng > |
| inline indirect_range<const InputRng> |
| operator|( const InputRng& r, indirect_forwarder ) |
| { |
| return indirect_range<const InputRng>( r ); |
| } |
| |
| } // 'range_detail' |
| |
| using range_detail::indirect_range; |
| |
| namespace adaptors |
| { |
| namespace |
| { |
| const range_detail::indirect_forwarder indirected = |
| range_detail::indirect_forwarder(); |
| } |
| |
| template<class InputRange> |
| inline indirect_range<InputRange> |
| indirect(InputRange& rng) |
| { |
| return indirect_range<InputRange>(rng); |
| } |
| |
| template<class InputRange> |
| inline indirect_range<const InputRange> |
| indirect(const InputRange& rng) |
| { |
| return indirect_range<const InputRange>(rng); |
| } |
| } // 'adaptors' |
| |
| } |
| |
| #endif |