You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
108 lines
3.2 KiB
108 lines
3.2 KiB
/* |
|
* Copyright 2008-2012 NVIDIA Corporation |
|
* |
|
* Licensed under the Apache License, Version 2.0 (the "License"); |
|
* you may not use this file except in compliance with the License. |
|
* You may obtain a copy of the License at |
|
* |
|
* http://www.apache.org/licenses/LICENSE-2.0 |
|
* |
|
* Unless required by applicable law or agreed to in writing, software |
|
* distributed under the License is distributed on an "AS IS" BASIS, |
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
|
* See the License for the specific language governing permissions and |
|
* limitations under the License. |
|
*/ |
|
|
|
#include <thrust/iterator/reverse_iterator.h> |
|
#include <thrust/iterator/iterator_traits.h> |
|
|
|
namespace thrust |
|
{ |
|
|
|
namespace detail |
|
{ |
|
|
|
__thrust_hd_warning_disable__ |
|
template<typename Iterator> |
|
__host__ __device__ |
|
Iterator prior(Iterator x) |
|
{ |
|
return --x; |
|
} // end prior() |
|
|
|
} // end detail |
|
|
|
template<typename BidirectionalIterator> |
|
reverse_iterator<BidirectionalIterator> |
|
::reverse_iterator(BidirectionalIterator x) |
|
:super_t(x) |
|
{ |
|
} // end reverse_iterator::reverse_iterator() |
|
|
|
template<typename BidirectionalIterator> |
|
template<typename OtherBidirectionalIterator> |
|
reverse_iterator<BidirectionalIterator> |
|
::reverse_iterator(reverse_iterator<OtherBidirectionalIterator> const &r |
|
// XXX msvc screws this up |
|
#ifndef _MSC_VER |
|
, typename thrust::detail::enable_if< |
|
thrust::detail::is_convertible< |
|
OtherBidirectionalIterator, |
|
BidirectionalIterator |
|
>::value |
|
>::type * |
|
#endif // _MSC_VER |
|
) |
|
:super_t(r.base()) |
|
{ |
|
} // end reverse_iterator::reverse_iterator() |
|
|
|
template<typename BidirectionalIterator> |
|
typename reverse_iterator<BidirectionalIterator>::super_t::reference |
|
reverse_iterator<BidirectionalIterator> |
|
::dereference(void) const |
|
{ |
|
return *thrust::detail::prior(this->base()); |
|
} // end reverse_iterator::increment() |
|
|
|
template<typename BidirectionalIterator> |
|
void reverse_iterator<BidirectionalIterator> |
|
::increment(void) |
|
{ |
|
--this->base_reference(); |
|
} // end reverse_iterator::increment() |
|
|
|
template<typename BidirectionalIterator> |
|
void reverse_iterator<BidirectionalIterator> |
|
::decrement(void) |
|
{ |
|
++this->base_reference(); |
|
} // end reverse_iterator::decrement() |
|
|
|
template<typename BidirectionalIterator> |
|
void reverse_iterator<BidirectionalIterator> |
|
::advance(typename super_t::difference_type n) |
|
{ |
|
this->base_reference() += -n; |
|
} // end reverse_iterator::advance() |
|
|
|
template<typename BidirectionalIterator> |
|
template<typename OtherBidirectionalIterator> |
|
typename reverse_iterator<BidirectionalIterator>::super_t::difference_type |
|
reverse_iterator<BidirectionalIterator> |
|
::distance_to(reverse_iterator<OtherBidirectionalIterator> const &y) const |
|
{ |
|
return this->base_reference() - y.base(); |
|
} // end reverse_iterator::distance_to() |
|
|
|
template<typename BidirectionalIterator> |
|
__host__ __device__ |
|
reverse_iterator<BidirectionalIterator> make_reverse_iterator(BidirectionalIterator x) |
|
{ |
|
return reverse_iterator<BidirectionalIterator>(x); |
|
} // end make_reverse_iterator() |
|
|
|
|
|
} // end thrust |
|
|
|
|