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63 lines
1.6 KiB
63 lines
1.6 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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#include <thrust/detail/config.h>
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#include <thrust/system/detail/generic/advance.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 system
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{
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namespace detail
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{
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namespace generic
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{
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namespace detail
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{
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template<typename InputIterator, typename Distance>
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void advance(InputIterator& i, Distance n, thrust::incrementable_traversal_tag)
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{
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while(n)
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{
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++i;
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--n;
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} // end while
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} // end advance()
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template<typename InputIterator, typename Distance>
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void advance(InputIterator& i, Distance n, thrust::random_access_traversal_tag)
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{
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i += n;
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} // end advance()
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} // end detail
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template<typename InputIterator, typename Distance>
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void advance(InputIterator& i, Distance n)
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{
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// dispatch on iterator traversal
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thrust::system::detail::generic::detail::advance(i, n,
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typename thrust::iterator_traversal<InputIterator>::type());
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} // end advance()
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} // end namespace detail
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} // end namespace generic
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} // end namespace system
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} // end namespace thrust
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