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https://github.com/bolero-MURAKAMI/Sprout.git
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58 lines
1.8 KiB
C++
58 lines
1.8 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_UNIQUE_HPP
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#define SPROUT_ALGORITHM_UNIQUE_HPP
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#include <iterator>
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#include <sprout/config.hpp>
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#include <sprout/utility/move.hpp>
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namespace sprout {
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//
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// 25.3.9 Unique
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//
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template<typename ForwardIterator>
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inline SPROUT_CXX14_CONSTEXPR ForwardIterator
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unique(ForwardIterator first, ForwardIterator last) {
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if (first == last) {
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return first;
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}
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ForwardIterator result = first;
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typename std::iterator_traits<ForwardIterator>::value_type value = sprout::move(*first++);
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for (; first != last; ++first) {
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if (!(value == *first)) {
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*result++ = sprout::move(value);
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value = sprout::move(*first);
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}
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}
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*result++ = sprout::move(value);
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return result;
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}
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template<typename ForwardIterator, typename BinaryPredicate>
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inline SPROUT_CXX14_CONSTEXPR ForwardIterator
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unique(ForwardIterator first, ForwardIterator last, BinaryPredicate pred) {
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if (first == last) {
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return first;
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}
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ForwardIterator result = first;
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typename std::iterator_traits<ForwardIterator>::value_type value = sprout::move(*first++);
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for (; first != last; ++first) {
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if (!pred(value, *first)) {
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*result++ = sprout::move(value);
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value = sprout::move(*first);
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}
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}
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*result++ = sprout::move(value);
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return result;
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}
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} // namespace sprout
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#include <sprout/algorithm/fixed/unique.hpp>
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#include <sprout/algorithm/fit/unique.hpp>
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#endif // #ifndef SPROUT_ALGORITHM_UNIQUE_HPP
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