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151 lines
4.5 KiB
151 lines
4.5 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/iterator/zip_iterator.h> |
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#include <thrust/detail/tuple_transform.h> |
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namespace thrust |
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{ |
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template <typename IteratorTuple> |
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zip_iterator<IteratorTuple> |
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::zip_iterator(void) |
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{ |
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} // end zip_iterator::zip_iterator() |
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template <typename IteratorTuple> |
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zip_iterator<IteratorTuple> |
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::zip_iterator(IteratorTuple iterator_tuple) |
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:m_iterator_tuple(iterator_tuple) |
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{ |
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} // end zip_iterator::zip_iterator() |
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template <typename IteratorTuple> |
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template <typename OtherIteratorTuple> |
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zip_iterator<IteratorTuple> |
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::zip_iterator(const zip_iterator<OtherIteratorTuple> &other, |
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typename thrust::detail::enable_if_convertible< |
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OtherIteratorTuple, |
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IteratorTuple |
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>::type *) |
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:m_iterator_tuple(other.get_iterator_tuple()) |
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{ |
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} // end zip_iterator::zip_iterator() |
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template <typename IteratorTuple> |
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const IteratorTuple &zip_iterator<IteratorTuple> |
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::get_iterator_tuple(void) const |
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{ |
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return m_iterator_tuple; |
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} // end zip_iterator::get_iterator_tuple() |
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template <typename IteratorTuple> |
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typename zip_iterator<IteratorTuple>::super_t::reference |
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zip_iterator<IteratorTuple> |
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::dereference(void) const |
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{ |
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using namespace detail::tuple_impl_specific; |
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return thrust::detail::tuple_host_device_transform<detail::dereference_iterator::template apply>(get_iterator_tuple(), detail::dereference_iterator()); |
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} // end zip_iterator::dereference() |
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__thrust_hd_warning_disable__ |
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template <typename IteratorTuple> |
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template <typename OtherIteratorTuple> |
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bool zip_iterator<IteratorTuple> |
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::equal(const zip_iterator<OtherIteratorTuple> &other) const |
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{ |
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return get<0>(get_iterator_tuple()) == get<0>(other.get_iterator_tuple()); |
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} // end zip_iterator::equal() |
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template <typename IteratorTuple> |
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void zip_iterator<IteratorTuple> |
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::advance(typename super_t::difference_type n) |
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{ |
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using namespace detail::tuple_impl_specific; |
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// XXX note that we use a pointer to System to dispatch to avoid |
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// default construction of a System |
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typename thrust::iterator_system<zip_iterator>::type *use_me_to_dispatch = 0; |
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// dispatch on system |
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tuple_for_each(m_iterator_tuple, |
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detail::advance_iterator<typename super_t::difference_type>(n), |
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use_me_to_dispatch); |
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} // end zip_iterator::advance() |
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template <typename IteratorTuple> |
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void zip_iterator<IteratorTuple> |
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::increment(void) |
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{ |
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using namespace detail::tuple_impl_specific; |
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// XXX note that we use a pointer to System to dispatch to avoid |
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// default construction of a System |
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typename thrust::iterator_system<zip_iterator>::type *use_me_to_dispatch = 0; |
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// dispatch on system |
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tuple_for_each(m_iterator_tuple, detail::increment_iterator(), |
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use_me_to_dispatch); |
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} // end zip_iterator::increment() |
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template <typename IteratorTuple> |
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void zip_iterator<IteratorTuple> |
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::decrement(void) |
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{ |
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using namespace detail::tuple_impl_specific; |
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// XXX note that we use a pointer to System to dispatch to avoid |
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// default construction of a System |
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typename thrust::iterator_system<zip_iterator>::type *use_me_to_dispatch = 0; |
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// dispatch on system |
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tuple_for_each(m_iterator_tuple, detail::decrement_iterator(), |
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use_me_to_dispatch); |
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} // end zip_iterator::decrement() |
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__thrust_hd_warning_disable__ |
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template <typename IteratorTuple> |
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template <typename OtherIteratorTuple> |
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typename zip_iterator<IteratorTuple>::super_t::difference_type |
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zip_iterator<IteratorTuple> |
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::distance_to(const zip_iterator<OtherIteratorTuple> &other) const |
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{ |
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return get<0>(other.get_iterator_tuple()) - get<0>(get_iterator_tuple()); |
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} // end zip_iterator::distance_to() |
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template <typename IteratorTuple> |
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zip_iterator<IteratorTuple> make_zip_iterator(IteratorTuple t) |
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{ |
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return zip_iterator<IteratorTuple>(t); |
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} // end make_zip_iterator() |
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} // end thrust |
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