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147 lines
5.0 KiB
147 lines
5.0 KiB
/* |
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* Copyright 2008-2012 NVIDIA Corporation |
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* |
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* Licensed under the Apache License, Version 2.0 (the "License"); |
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* you may not use this file except in compliance with the License. |
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* You may obtain a copy of the License at |
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* |
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* http://www.apache.org/licenses/LICENSE-2.0 |
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* |
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* Unless required by applicable law or agreed to in writing, software |
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* distributed under the License is distributed on an "AS IS" BASIS, |
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
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* See the License for the specific language governing permissions and |
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* limitations under the License. |
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*/ |
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#pragma once |
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#include <thrust/detail/config.h> |
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#include <thrust/system/omp/detail/copy.h> |
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#include <thrust/system/detail/generic/copy.h> |
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#include <thrust/detail/type_traits/minimum_type.h> |
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#include <thrust/system/cpp/detail/copy.h> |
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#include <thrust/iterator/detail/retag.h> |
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namespace thrust |
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{ |
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namespace system |
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{ |
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namespace omp |
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{ |
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namespace detail |
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{ |
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namespace dispatch |
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{ |
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template<typename DerivedPolicy, |
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typename InputIterator, |
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typename OutputIterator> |
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OutputIterator copy(execution_policy<DerivedPolicy> &exec, |
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InputIterator first, |
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InputIterator last, |
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OutputIterator result, |
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thrust::incrementable_traversal_tag) |
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{ |
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return thrust::system::cpp::detail::copy(exec, first, last, result); |
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} // end copy() |
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template<typename DerivedPolicy, |
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typename InputIterator, |
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typename OutputIterator> |
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OutputIterator copy(execution_policy<DerivedPolicy> &exec, |
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InputIterator first, |
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InputIterator last, |
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OutputIterator result, |
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thrust::random_access_traversal_tag) |
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{ |
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// XXX WAR problems reconciling unrelated types such as omp & tbb |
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// reinterpret iterators as the policy we were passed |
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// this ensures that generic::copy's implementation, which eventually results in |
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// zip_iterator works correctly |
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thrust::detail::tagged_iterator<OutputIterator,DerivedPolicy> retagged_result(result); |
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return thrust::system::detail::generic::copy(exec, thrust::reinterpret_tag<DerivedPolicy>(first), thrust::reinterpret_tag<DerivedPolicy>(last), retagged_result).base(); |
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} // end copy() |
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template<typename DerivedPolicy, |
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typename InputIterator, |
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typename Size, |
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typename OutputIterator> |
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OutputIterator copy_n(execution_policy<DerivedPolicy> &exec, |
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InputIterator first, |
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Size n, |
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OutputIterator result, |
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thrust::incrementable_traversal_tag) |
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{ |
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return thrust::system::cpp::detail::copy_n(exec, first, n, result); |
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} // end copy_n() |
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template<typename DerivedPolicy, |
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typename InputIterator, |
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typename Size, |
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typename OutputIterator> |
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OutputIterator copy_n(execution_policy<DerivedPolicy> &exec, |
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InputIterator first, |
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Size n, |
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OutputIterator result, |
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thrust::random_access_traversal_tag) |
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{ |
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// XXX WAR problems reconciling unrelated types such as omp & tbb |
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// reinterpret iterators as the policy we were passed |
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// this ensures that generic::copy's implementation, which eventually results in |
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// zip_iterator works correctly |
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thrust::detail::tagged_iterator<OutputIterator,DerivedPolicy> retagged_result(result); |
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return thrust::system::detail::generic::copy_n(exec, thrust::reinterpret_tag<DerivedPolicy>(first), n, retagged_result).base(); |
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} // end copy_n() |
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} // end dispatch |
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template<typename DerivedPolicy, |
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typename InputIterator, |
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typename OutputIterator> |
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OutputIterator copy(execution_policy<DerivedPolicy> &exec, |
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InputIterator first, |
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InputIterator last, |
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OutputIterator result) |
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{ |
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typedef typename thrust::iterator_traversal<InputIterator>::type traversal1; |
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typedef typename thrust::iterator_traversal<OutputIterator>::type traversal2; |
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typedef typename thrust::detail::minimum_type<traversal1,traversal2>::type traversal; |
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// dispatch on minimum traversal |
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return thrust::system::omp::detail::dispatch::copy(exec, first,last,result,traversal()); |
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} // end copy() |
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template<typename DerivedPolicy, |
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typename InputIterator, |
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typename Size, |
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typename OutputIterator> |
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OutputIterator copy_n(execution_policy<DerivedPolicy> &exec, |
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InputIterator first, |
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Size n, |
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OutputIterator result) |
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{ |
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typedef typename thrust::iterator_traversal<InputIterator>::type traversal1; |
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typedef typename thrust::iterator_traversal<OutputIterator>::type traversal2; |
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typedef typename thrust::detail::minimum_type<traversal1,traversal2>::type traversal; |
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// dispatch on minimum traversal |
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return thrust::system::omp::detail::dispatch::copy_n(exec,first,n,result,traversal()); |
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} // end copy_n() |
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} // end namespace detail |
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} // end namespace omp |
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} // end namespace system |
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} // end namespace thrust |
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