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75 lines
2.0 KiB
75 lines
2.0 KiB
11 years ago
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/*
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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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