// Boost.Range library // // Copyright Neil Groves 2009. 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_JOIN_HPP_INCLUDED #define BOOST_RANGE_JOIN_HPP_INCLUDED #include <boost/config.hpp> #include <boost/range/detail/join_iterator.hpp> #include <boost/range/concepts.hpp> #include <boost/range/iterator_range.hpp> namespace boost { namespace range_detail { template<class SinglePassRange1, class SinglePassRange2> class joined_type { public: typedef iterator_range< range_detail::join_iterator< BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange1>::type, BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange2>::type, BOOST_DEDUCED_TYPENAME range_value<SinglePassRange1>::type > > type; }; } // namespace range_detail template<class SinglePassRange1, class SinglePassRange2> class joined_range : public range_detail::joined_type<SinglePassRange1, SinglePassRange2>::type { typedef range_detail::join_iterator< BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange1>::type, BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange2>::type, BOOST_DEDUCED_TYPENAME range_value<SinglePassRange1>::type > iterator_t; typedef BOOST_DEDUCED_TYPENAME range_detail::joined_type< SinglePassRange1, SinglePassRange2>::type base_t; public: joined_range(SinglePassRange1& rng1, SinglePassRange2& rng2) : base_t( iterator_t(rng1, rng2, range_detail::join_iterator_begin_tag()), iterator_t(rng1, rng2, range_detail::join_iterator_end_tag()) ) { } }; template<class SinglePassRange1, class SinglePassRange2> joined_range<const SinglePassRange1, const SinglePassRange2> join(const SinglePassRange1& r1, const SinglePassRange2& r2) { BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> )); BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange2> )); return joined_range<const SinglePassRange1, const SinglePassRange2>(r1, r2); } template<class SinglePassRange1, class SinglePassRange2> joined_range<SinglePassRange1, SinglePassRange2> join(SinglePassRange1& r1, SinglePassRange2& r2) { BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> )); BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange2> )); return joined_range<SinglePassRange1, SinglePassRange2>(r1, r2); } } // namespace boost #endif // include guard