92 lines
2.8 KiB
C++
92 lines
2.8 KiB
C++
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// Boost.Range library
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//
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// Copyright Neil Groves 2009. Use, modification and
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// distribution is subject to the Boost Software License, Version
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// 1.0. (See accompanying file LICENSE_1_0.txt or copy at
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// http://www.boost.org/LICENSE_1_0.txt)
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//
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//
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// For more information, see http://www.boost.org/libs/range/
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//
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#ifndef BOOST_RANGE_JOIN_HPP_INCLUDED
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#define BOOST_RANGE_JOIN_HPP_INCLUDED
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#include <boost/config.hpp>
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#include <boost/range/detail/join_iterator.hpp>
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#include <boost/range/concepts.hpp>
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#include <boost/range/iterator_range.hpp>
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namespace boost
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{
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namespace range_detail
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{
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template<class SinglePassRange1, class SinglePassRange2>
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class joined_type
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{
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public:
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typedef iterator_range<
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range_detail::join_iterator<
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BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange1>::type,
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BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange2>::type,
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BOOST_DEDUCED_TYPENAME range_value<SinglePassRange1>::type
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>
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> type;
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};
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} // namespace range_detail
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namespace range
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{
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template<class SinglePassRange1, class SinglePassRange2>
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class joined_range
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: public range_detail::joined_type<SinglePassRange1, SinglePassRange2>::type
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{
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typedef range_detail::join_iterator<
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BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange1>::type,
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BOOST_DEDUCED_TYPENAME range_iterator<SinglePassRange2>::type,
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BOOST_DEDUCED_TYPENAME range_value<SinglePassRange1>::type
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> iterator_t;
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typedef BOOST_DEDUCED_TYPENAME range_detail::joined_type<
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SinglePassRange1, SinglePassRange2>::type base_t;
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public:
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joined_range(SinglePassRange1& rng1, SinglePassRange2& rng2)
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: base_t(
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iterator_t(rng1, rng2, range_detail::join_iterator_begin_tag()),
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iterator_t(rng1, rng2, range_detail::join_iterator_end_tag())
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)
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{
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}
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};
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template<class SinglePassRange1, class SinglePassRange2>
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joined_range<const SinglePassRange1, const SinglePassRange2>
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join(const SinglePassRange1& r1, const SinglePassRange2& r2)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> ));
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange2> ));
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return joined_range<const SinglePassRange1, const SinglePassRange2>(r1, r2);
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}
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template<class SinglePassRange1, class SinglePassRange2>
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joined_range<SinglePassRange1, SinglePassRange2>
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join(SinglePassRange1& r1, SinglePassRange2& r2)
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{
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange1> ));
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BOOST_RANGE_CONCEPT_ASSERT(( SinglePassRangeConcept<SinglePassRange2> ));
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return joined_range<SinglePassRange1, SinglePassRange2>(r1, r2);
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}
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} // namespace range
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using ::boost::range::joined_range;
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using ::boost::range::join;
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} // namespace boost
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#endif // include guard
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