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71 lines
2.6 KiB
71 lines
2.6 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/detail/execution_policy.h> |
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#include <thrust/pair.h> |
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#include <thrust/detail/pointer.h> |
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#include <thrust/detail/raw_pointer_cast.h> |
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#include <thrust/system/detail/generic/temporary_buffer.h> |
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#include <thrust/system/detail/adl/temporary_buffer.h> |
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namespace thrust |
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{ |
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namespace detail |
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{ |
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namespace get_temporary_buffer_detail |
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{ |
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template<typename T, typename DerivedPolicy, typename Pair> |
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thrust::pair<thrust::pointer<T,DerivedPolicy>, typename thrust::pointer<T,DerivedPolicy>::difference_type> |
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down_cast_pair(Pair p) |
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{ |
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// XXX should use a hypothetical thrust::static_pointer_cast here |
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thrust::pointer<T,DerivedPolicy> ptr = thrust::pointer<T,DerivedPolicy>(static_cast<T*>(thrust::raw_pointer_cast(p.first))); |
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typedef thrust::pair<thrust::pointer<T,DerivedPolicy>, typename thrust::pointer<T,DerivedPolicy>::difference_type> result_type; |
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return result_type(ptr, p.second); |
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} // end down_cast_pair() |
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} // end get_temporary_buffer_detail |
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} // end detail |
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template<typename T, typename DerivedPolicy> |
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thrust::pair<thrust::pointer<T,DerivedPolicy>, typename thrust::pointer<T,DerivedPolicy>::difference_type> |
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get_temporary_buffer(const thrust::detail::execution_policy_base<DerivedPolicy> &exec, typename thrust::pointer<T,DerivedPolicy>::difference_type n) |
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{ |
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using thrust::system::detail::generic::get_temporary_buffer; |
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return thrust::detail::get_temporary_buffer_detail::down_cast_pair<T,DerivedPolicy>(get_temporary_buffer<T>(thrust::detail::derived_cast(thrust::detail::strip_const(exec)), n)); |
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} // end get_temporary_buffer() |
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template<typename DerivedPolicy, typename Pointer> |
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void return_temporary_buffer(const thrust::detail::execution_policy_base<DerivedPolicy> &exec, Pointer p) |
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{ |
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using thrust::system::detail::generic::return_temporary_buffer; |
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return return_temporary_buffer(thrust::detail::derived_cast(thrust::detail::strip_const(exec)), p); |
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} // end return_temporary_buffer() |
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} // end thrust |
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