hpx::ranges::uninitialized_copy, hpx::ranges::uninitialized_copy_n#

Defined in header hpx/algorithm.hpp.

See Public API for a list of names and headers that are part of the public HPX API.

namespace hpx
namespace ranges

Functions

template<typename InIter, typename Sent1, typename FwdIter, typename Sent2>
hpx::parallel::util::in_out_result<InIter, FwdIter> uninitialized_copy(InIter first1, Sent1 last1, FwdIter first2, Sent2 last2)#

Copies the elements in the range, defined by [first, last), to an uninitialized memory area beginning at dest. If an exception is thrown during the copy operation, the function has no effects.

The assignments in the parallel uninitialized_copy algorithm invoked without an execution policy object will execute in sequential order in the calling thread.

Note

Complexity: Performs exactly last - first assignments.

Template Parameters

  • InIter – The type of the source iterators used (deduced). This iterator type must meet the requirements of an input iterator.

  • Sent1 – The type of the source sentinel (deduced). This sentinel type must be a sentinel for InIter.

  • FwdIter – The type of the iterator representing the destination range (deduced). This iterator type must meet the requirements of a forward iterator.

  • Sent2 – The type of the source sentinel (deduced). This sentinel type must be a sentinel for InIter2.

Parameters

  • first1 – Refers to the beginning of the sequence of elements that will be copied from

  • last1 – Refers to sentinel value denoting the end of the sequence of elements the algorithm will be applied

  • first2 – Refers to the beginning of the destination range.

  • last2 – Refers to sentinel value denoting the end of the second range the algorithm will be applied to.

Returns

The uninitialized_copy algorithm returns an in_out_result<InIter, FwdIter>. The uninitialized_copy algorithm returns an input iterator to one past the last element copied from and the output iterator to the element in the destination range, one past the last element copied.

template<typename ExPolicy, typename FwdIter1, typename Sent1, typename FwdIter2, typename Sent2>
parallel::util::detail::algorithm_result<ExPolicy, parallel::util::in_out_result<FwdIter1, FwdIter2>>::type uninitialized_copy(ExPolicy &&policy, FwdIter1 first1, Sent1 last1, FwdIter2 first2, Sent2 last2)#

Copies the elements in the range, defined by [first, last), to an uninitialized memory area beginning at dest. If an exception is thrown during the copy operation, the function has no effects.

The assignments in the parallel uninitialized_copy algorithm invoked with an execution policy object of type sequenced_policy execute in sequential order in the calling thread.

The assignments in the parallel uninitialized_copy algorithm invoked with an execution policy object of type parallel_policy or parallel_task_policy are permitted to execute in an unordered fashion in unspecified threads, and indeterminately sequenced within each thread.

Note

Complexity: Performs exactly last - first assignments.

Template Parameters

  • ExPolicy – The type of the execution policy to use (deduced). It describes the manner in which the execution of the algorithm may be parallelized and the manner in which it executes the assignments.

  • FwdIter1 – The type of the source iterators used (deduced). This iterator type must meet the requirements of an input iterator.

  • Sent1 – The type of the source sentinel (deduced). This sentinel type must be a sentinel for InIter.

  • FwdIter2 – The type of the iterator representing the destination range (deduced). This iterator type must meet the requirements of a forward iterator.

  • Sent2 – The type of the source sentinel (deduced). This sentinel type must be a sentinel for InIter2.

Parameters

  • policy – The execution policy to use for the scheduling of the iterations.

  • first1 – Refers to the beginning of the sequence of elements that will be copied from

  • last1 – Refers to sentinel value denoting the end of the sequence of elements the algorithm will be applied.

  • first2 – Refers to the beginning of the destination range.

  • last2 – Refers to sentinel value denoting the end of the second range the algorithm will be applied to.

Returns

The uninitialized_copy algorithm returns a hpx::future<in_out_result<InIter, FwdIter>>, if the execution policy is of type sequenced_task_policy or parallel_task_policy and returns in_out_result<InIter, FwdIter> otherwise. The uninitialized_copy algorithm returns an input iterator to one past the last element copied from and the output iterator to the element in the destination range, one past the last element copied.

template<typename Rng1, typename Rng2>
hpx::parallel::util::in_out_result<typename hpx::traits::range_traits<Rng1>::iterator_type, typename hpx::traits::range_traits<Rng2>::iterator_type> uninitialized_copy(Rng1 &&rng1, Rng2 &&rng2)#

Copies the elements in the range, defined by [first, last), to an uninitialized memory area beginning at dest. If an exception is thrown during the copy operation, the function has no effects.

The assignments in the parallel uninitialized_copy algorithm invoked without an execution policy object will execute in sequential order in the calling thread.

Note

Complexity: Performs exactly last - first assignments.

Template Parameters

  • Rng1 – The type of the source range used (deduced). The iterators extracted from this range type must meet the requirements of an input iterator.

  • Rng2 – The type of the destination range used (deduced). The iterators extracted from this range type must meet the requirements of an forward iterator.

Parameters

  • rng1 – Refers to the range from which the elements will be copied from

  • rng2 – Refers to the range to which the elements will be copied to

Returns

The uninitialized_copy algorithm returns an in_out_result<typename hpx::traits::range_traits<Rng1>::iterator_type, typename hpx::traits::range_traits<Rng2>::iterator_type>. The uninitialized_copy algorithm returns an input iterator to one past the last element copied from and the output iterator to the element in the destination range, one past the last element copied.

template<typename ExPolicy, typename Rng1, typename Rng2>
parallel::util::detail::algorithm_result<ExPolicy, hpx::parallel::util::in_out_result<typename hpx::traits::range_traits<Rng1>::iterator_type, typename hpx::traits::range_traits<Rng2>::iterator_type>>::type uninitialized_copy(ExPolicy &&policy, Rng1 &&rng1, Rng2 &&rng2)#

Copies the elements in the range, defined by [first, last), to an uninitialized memory area beginning at dest. If an exception is thrown during the copy operation, the function has no effects.

The assignments in the parallel uninitialized_copy algorithm invoked with an execution policy object of type sequenced_policy execute in sequential order in the calling thread.

The assignments in the parallel uninitialized_copy algorithm invoked with an execution policy object of type parallel_policy or parallel_task_policy are permitted to execute in an unordered fashion in unspecified threads, and indeterminately sequenced within each thread.

Note

Complexity: Performs exactly last - first assignments.

Template Parameters

  • ExPolicy – The type of the execution policy to use (deduced). It describes the manner in which the execution of the algorithm may be parallelized and the manner in which it executes the assignments.

  • Rng1 – The type of the source range used (deduced). The iterators extracted from this range type must meet the requirements of an input iterator.

  • Rng2 – The type of the destination range used (deduced). The iterators extracted from this range type must meet the requirements of an forward iterator.

Parameters

  • policy – The execution policy to use for the scheduling of the iterations.

  • rng1 – Refers to the range from which the elements will be copied from

  • rng2 – Refers to the range to which the elements will be copied to

Returns

The uninitialized_copy algorithm returns a hpx::future<in_out_result<InIter, FwdIter>>, if the execution policy is of type sequenced_task_policy or parallel_task_policy and returns in_out_result< typename hpx::traits::range_traits<Rng1>::iterator_type , typename hpx::traits::range_traits<Rng2>::iterator_type> otherwise. The uninitialized_copy algorithm returns the input iterator to one past the last element copied from and the output iterator to the element in the destination range, one past the last element copied.

template<typename InIter, typename Size, typename FwdIter, typename Sent2>
hpx::parallel::util::in_out_result<InIter, FwdIter> uninitialized_copy_n(InIter first1, Size count, FwdIter first2, Sent2 last2)#

Copies the elements in the range [first, first + count), starting from first and proceeding to first + count - 1., to another range beginning at dest. If an exception is thrown during the copy operation, the function has no effects.

The assignments in the parallel uninitialized_copy_n algorithm invoked with an execution policy object of type sequenced_policy execute in sequential order in the calling thread.

Note

Complexity: Performs exactly last - first assignments.

Template Parameters

  • InIter – The type of the source iterators used (deduced). This iterator type must meet the requirements of an input iterator.

  • Size – The type of the argument specifying the number of elements to apply f to.

  • FwdIter – The type of the iterator representing the destination range (deduced). This iterator type must meet the requirements of a forward iterator.

  • Sent2 – The type of the source sentinel (deduced). This sentinel type must be a sentinel for FwdIter.

Parameters

  • first1 – Refers to the beginning of the sequence of elements that will be copied from

  • count – Refers to the number of elements starting at first the algorithm will be applied to.

  • first2 – Refers to the beginning of the destination range.

  • last2 – Refers to sentinel value denoting the end of the second range the algorithm will be applied to.

Returns

The uninitialized_copy_n algorithm returns in_out_result<InIter, FwdIter>. The uninitialized_copy_n algorithm returns the output iterator to the element in the destination range, one past the last element copied.

template<typename ExPolicy, typename FwdIter1, typename Size, typename FwdIter2, typename Sent2>
parallel::util::detail::algorithm_result<ExPolicy, parallel::util::in_out_result<FwdIter1, FwdIter2>>::type uninitialized_copy_n(ExPolicy &&policy, FwdIter1 first1, Size count, FwdIter2 first2, Sent2 last2)#

Copies the elements in the range [first, first + count), starting from first and proceeding to first + count - 1., to another range beginning at dest. If an exception is thrown during the copy operation, the function has no effects.

The assignments in the parallel uninitialized_copy_n algorithm invoked with an execution policy object of type sequenced_policy execute in sequential order in the calling thread.

The assignments in the parallel uninitialized_copy_n algorithm invoked with an execution policy object of type parallel_policy or parallel_task_policy are permitted to execute in an unordered fashion in unspecified threads, and indeterminately sequenced within each thread.

Note

Complexity: Performs exactly last - first assignments.

Template Parameters

  • ExPolicy – The type of the execution policy to use (deduced). It describes the manner in which the execution of the algorithm may be parallelized and the manner in which it executes the assignments.

  • FwdIter1 – The type of the source iterators used (deduced). This iterator type must meet the requirements of an input iterator.

  • Size – The type of the argument specifying the number of elements to apply f to.

  • FwdIter2 – The type of the iterator representing the destination range (deduced). This iterator type must meet the requirements of a forward iterator.

  • Sent2 – The type of the source sentinel (deduced). This sentinel type must be a sentinel for InIter2.

Parameters

  • policy – The execution policy to use for the scheduling of the iterations.

  • first1 – Refers to the beginning of the sequence of elements that will be copied from

  • count – Refers to the number of elements starting at first the algorithm will be applied to.

  • first2 – Refers to the beginning of the destination range.

  • last2 – Refers to sentinel value denoting the end of the second range the algorithm will be applied to.

Returns

The uninitialized_copy_n algorithm returns a hpx::future<in_out_result<FwdIter1, FwdIter2>> if the execution policy is of type sequenced_task_policy or parallel_task_policy and returns FwdIter2 otherwise. The uninitialized_copy_n algorithm returns the output iterator to the element in the destination range, one past the last element copied.