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[oneDPL][ranges] Add partition algorithms #644

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[oneDPL][ranges] Add partition algorithms #644

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52 changes: 52 additions & 0 deletions source/elements/oneDPL/source/parallel_api/parallel_range_api.rst
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Original file line number Diff line number Diff line change
Expand Up @@ -495,6 +495,58 @@ Set operations
Comp comp = {}, Proj1 proj1 = {}, Proj2 proj2 = {});
}

Partition operations
++++++++++++++++++++
.. code:: cpp

// Defined in <oneapi/dpl/algorithm>

namespace oneapi::dpl::ranges {

// is_partitioned
template <typename ExecutionPolicy, std::ranges::random_access_range R,
typename Proj = std::identity,
std::indirect_unary_predicate< std::projected<std::ranges::iterator_t<R>, Proj> > Pred>
requires oneapi::dpl::is_execution_policy_v<std::remove_cvref_t<ExecutionPolicy>> &&
std::ranges::sized_range<R>
bool is_partitioned (ExecutionPolicy&& pol, R&& r, Pred pred, Proj proj = {});

// partition
template <typename ExecutionPolicy, std::ranges::random_access_range R,
typename Proj = std::identity,
std::indirect_unary_predicate< std::projected<std::ranges::iterator_t<R>, Proj> > Pred>
requires oneapi::dpl::is_execution_policy_v<std::remove_cvref_t<ExecutionPolicy>> &&
std::ranges::sized_range<R> &&
std::permutable<std::ranges::iterator_t<R>>
std::ranges::borrowed_subrange_t<R>
partition (ExecutionPolicy&& pol, R&& r, Pred pred, Proj proj = {});

// stable_partition
template <typename ExecutionPolicy, std::ranges::random_access_range R,
typename Proj = std::identity,
std::indirect_unary_predicate< std::projected<std::ranges::iterator_t<R>, Proj> > Pred>
requires oneapi::dpl::is_execution_policy_v<std::remove_cvref_t<ExecutionPolicy>> &&
std::ranges::sized_range<R> && std::permutable<std::ranges::iterator_t<R>>
std::ranges::borrowed_subrange_t<R>
stable_partition (ExecutionPolicy&& pol, R&& r, Pred pred, Proj proj = {});

// partition_copy
template <typename ExecutionPolicy, std::ranges::random_access_range R,
std::ranges::random_access_range OutR1, std::ranges::random_access_range OutR2,
typename Proj = std::identity,
std::indirect_unary_predicate< std::projected<std::ranges::iterator_t<R>, Proj> > Pred>
requires oneapi::dpl::is_execution_policy_v<std::remove_cvref_t<ExecutionPolicy>> &&
std::ranges::sized_range<R> && std::ranges::sized_range<OutR1> &&
std::ranges::sized_range<OutR2> &&
std::indirectly_copyable<std::ranges::iterator_t<R>, std::ranges::iterator_t<OutR1>> &&
std::indirectly_copyable<std::ranges::iterator_t<R>, std::ranges::iterator_t<OutR2>>
std::ranges::partition_copy_result<std::ranges::borrowed_iterator_t<R>,
std::ranges::borrowed_iterator_t<OutR1>,
std::ranges::borrowed_iterator_t<OutR2>>
partition_copy (ExecutionPolicy&& pol, R&& r, OutR1&& out_true_r, OutR2&& out_false_r,
Pred pred, Proj proj = {});
}

Copying Mutating Operations
+++++++++++++++++++++++++++

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