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28 lines
1 KiB
C++
28 lines
1 KiB
C++
#ifndef SPROUT_ALGORITHM_IS_PARTITIONED_HPP
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#define SPROUT_ALGORITHM_IS_PARTITIONED_HPP
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#include <sprout/config.hpp>
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#include <sprout/iterator/operation.hpp>
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namespace sprout {
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// Copyright (C) 2011 RiSK (sscrisk)
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namespace detail {
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template<typename InputIterator, typename Predicate>
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inline SPROUT_CONSTEXPR bool is_partitioned_impl(InputIterator first, InputIterator last, Predicate pred, bool cond = true) {
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return first == last ? true
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: cond ? sprout::detail::is_partitioned_impl(sprout::next(first), last, pred, pred(*first))
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: pred(*first) ? false
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: sprout::detail::is_partitioned_impl(sprout::next(first), last, pred, false)
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;
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}
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} // namespace detail
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// 25.3.13 Partitions
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template<typename InputIterator, typename Predicate>
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inline SPROUT_CONSTEXPR bool is_partitioned(InputIterator first, InputIterator last, Predicate pred) {
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return sprout::detail::is_partitioned_impl(first, last, pred);
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}
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} // namespace sprout
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#endif // #ifndef SPROUT_ALGORITHM_IS_PARTITIONED_HPP
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