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74 lines
2.0 KiB
74 lines
2.0 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/iterator/iterator_adaptor.h> |
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#include <thrust/iterator/iterator_traits.h> |
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#include <thrust/detail/use_default.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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template <typename,typename> class tagged_iterator; |
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template<typename Iterator, typename Tag> |
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struct tagged_iterator_base |
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{ |
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typedef thrust::iterator_adaptor< |
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tagged_iterator<Iterator,Tag>, |
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Iterator, |
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typename thrust::iterator_value<Iterator>::type, |
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Tag, |
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typename thrust::iterator_traversal<Iterator>::type, |
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typename thrust::iterator_reference<Iterator>::type, |
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typename thrust::iterator_difference<Iterator>::type |
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> type; |
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}; // end tagged_iterator_base |
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template<typename Iterator, typename Tag> |
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class tagged_iterator |
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: public tagged_iterator_base<Iterator,Tag>::type |
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{ |
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private: |
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typedef typename tagged_iterator_base<Iterator,Tag>::type super_t; |
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public: |
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__host__ __device__ |
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tagged_iterator(void) {} |
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__host__ __device__ |
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explicit tagged_iterator(Iterator x) |
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: super_t(x) {} |
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}; // end tagged_iterator |
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// specialize is_trivial_iterator for tagged_iterator |
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template<typename> struct is_trivial_iterator; |
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// tagged_iterator is trivial if its base iterator is |
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template<typename BaseIterator, typename Tag> |
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struct is_trivial_iterator<tagged_iterator<BaseIterator,Tag> > |
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: is_trivial_iterator<BaseIterator> |
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{}; |
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} // end detail |
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} // end thrust |
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