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33 lines
1.1 KiB
C++
33 lines
1.1 KiB
C++
/*=============================================================================
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Copyright (c) 2011-2018 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_IS_DECREASING_HPP
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#define SPROUT_ALGORITHM_IS_DECREASING_HPP
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#include <iterator>
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#include <sprout/config.hpp>
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#include <sprout/algorithm/is_sorted.hpp>
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#include HDR_FUNCTIONAL_SSCRISK_CEL_OR_SPROUT
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namespace sprout {
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//
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// is_decreasing
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//
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// recursion depth:
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// O(log N)
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//
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template<typename ForwardIterator>
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inline SPROUT_CONSTEXPR bool
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is_decreasing(ForwardIterator first, ForwardIterator last) {
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return sprout::is_sorted(
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first, last,
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NS_SSCRISK_CEL_OR_SPROUT::greater<typename std::iterator_traits<ForwardIterator>::value_type>()
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);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_IS_DECREASING_HPP
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