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108 lines
3.2 KiB
108 lines
3.2 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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#include <thrust/iterator/reverse_iterator.h> |
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#include <thrust/iterator/iterator_traits.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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__thrust_hd_warning_disable__ |
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template<typename Iterator> |
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__host__ __device__ |
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Iterator prior(Iterator x) |
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{ |
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return --x; |
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} // end prior() |
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} // end detail |
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template<typename BidirectionalIterator> |
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reverse_iterator<BidirectionalIterator> |
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::reverse_iterator(BidirectionalIterator x) |
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:super_t(x) |
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{ |
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} // end reverse_iterator::reverse_iterator() |
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template<typename BidirectionalIterator> |
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template<typename OtherBidirectionalIterator> |
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reverse_iterator<BidirectionalIterator> |
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::reverse_iterator(reverse_iterator<OtherBidirectionalIterator> const &r |
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// XXX msvc screws this up |
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#ifndef _MSC_VER |
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, typename thrust::detail::enable_if< |
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thrust::detail::is_convertible< |
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OtherBidirectionalIterator, |
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BidirectionalIterator |
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>::value |
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>::type * |
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#endif // _MSC_VER |
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) |
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:super_t(r.base()) |
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{ |
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} // end reverse_iterator::reverse_iterator() |
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template<typename BidirectionalIterator> |
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typename reverse_iterator<BidirectionalIterator>::super_t::reference |
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reverse_iterator<BidirectionalIterator> |
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::dereference(void) const |
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{ |
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return *thrust::detail::prior(this->base()); |
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} // end reverse_iterator::increment() |
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template<typename BidirectionalIterator> |
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void reverse_iterator<BidirectionalIterator> |
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::increment(void) |
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{ |
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--this->base_reference(); |
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} // end reverse_iterator::increment() |
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template<typename BidirectionalIterator> |
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void reverse_iterator<BidirectionalIterator> |
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::decrement(void) |
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{ |
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++this->base_reference(); |
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} // end reverse_iterator::decrement() |
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template<typename BidirectionalIterator> |
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void reverse_iterator<BidirectionalIterator> |
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::advance(typename super_t::difference_type n) |
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{ |
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this->base_reference() += -n; |
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} // end reverse_iterator::advance() |
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template<typename BidirectionalIterator> |
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template<typename OtherBidirectionalIterator> |
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typename reverse_iterator<BidirectionalIterator>::super_t::difference_type |
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reverse_iterator<BidirectionalIterator> |
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::distance_to(reverse_iterator<OtherBidirectionalIterator> const &y) const |
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{ |
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return this->base_reference() - y.base(); |
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} // end reverse_iterator::distance_to() |
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template<typename BidirectionalIterator> |
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__host__ __device__ |
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reverse_iterator<BidirectionalIterator> make_reverse_iterator(BidirectionalIterator x) |
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{ |
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return reverse_iterator<BidirectionalIterator>(x); |
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} // end make_reverse_iterator() |
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} // end thrust |
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