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48 lines
1.7 KiB
C++
48 lines
1.7 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2013 Bolero MURAKAMI
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https://github.com/bolero-MURAKAMI/Sprout
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Distributed under the Boost Software License, Version 1.0. (See accompanying
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file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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=============================================================================*/
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#ifndef SPROUT_ALGORITHM_NEXT_INTERSECTION_HPP
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#define SPROUT_ALGORITHM_NEXT_INTERSECTION_HPP
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#include <sprout/config.hpp>
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#include <sprout/iterator/operation.hpp>
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#include <sprout/functional/less.hpp>
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#include <sprout/utility/pair/pair.hpp>
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#include <sprout/algorithm/find_intersection.hpp>
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namespace sprout {
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//
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// next_intersection
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//
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// recursion depth:
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// O(log(N1+N2))
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//
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template<typename InputIterator1, typename InputIterator2, typename Compare>
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inline SPROUT_CONSTEXPR sprout::pair<InputIterator1, InputIterator2>
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next_intersection(
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InputIterator1 first1, InputIterator1 last1,
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InputIterator2 first2, InputIterator2 last2,
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Compare comp
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)
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{
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typedef sprout::pair<InputIterator1, InputIterator2> type;
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return first1 == last1 || first2 == last2 ? type(last1, last2)
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: sprout::find_intersection(sprout::next(first1), last1, sprout::next(first2), last2, comp)
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;
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}
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template<typename InputIterator1, typename InputIterator2>
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inline SPROUT_CONSTEXPR sprout::pair<InputIterator1, InputIterator2>
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next_intersection(
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InputIterator1 first1, InputIterator1 last1,
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InputIterator2 first2, InputIterator2 last2
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)
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{
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return sprout::next_intersection(first1, last1, first2, last2, sprout::less<>());
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_NEXT_INTERSECTION_HPP
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