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43 lines
1.6 KiB
C++
43 lines
1.6 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_SEARCH_N_HPP
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#define SPROUT_ALGORITHM_SEARCH_N_HPP
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#include <iterator>
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#include <sprout/config.hpp>
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#include <sprout/iterator/operation.hpp>
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#include <sprout/iterator/value_iterator.hpp>
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#include <sprout/functional/equal_to.hpp>
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#include <sprout/algorithm/search.hpp>
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namespace sprout {
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// 25.2.13 Search
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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 ForwardIterator, typename Size, typename T, typename BinaryPredicate>
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inline SPROUT_CONSTEXPR ForwardIterator
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search_n(ForwardIterator first, ForwardIterator last, Size count, T const& value, BinaryPredicate pred) {
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typedef sprout::value_iterator<T const&> iterator;
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typedef typename std::iterator_traits<iterator>::difference_type difference_type;
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return sprout::search(
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first, last,
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iterator(value, static_cast<difference_type>(count)), iterator(value, 0),
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pred
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);
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}
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template<typename ForwardIterator, typename Size, typename T>
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inline SPROUT_CONSTEXPR ForwardIterator
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search_n(ForwardIterator first, ForwardIterator last, Size count, T const& value) {
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return sprout::search_n(first, last, count, value, sprout::equal_to<>());
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_SEARCH_N_HPP
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