mirror of https://github.com/GOSTSec/ccminer
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.
71 lines
2.2 KiB
71 lines
2.2 KiB
11 years ago
|
/*
|
||
|
|
* 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/detail/config.h>
|
||
|
|
#include <thrust/system/detail/generic/reverse.h>
|
||
|
|
#include <thrust/advance.h>
|
||
|
|
#include <thrust/distance.h>
|
||
|
|
#include <thrust/detail/copy.h>
|
||
|
|
#include <thrust/swap.h>
|
||
|
|
#include <thrust/iterator/iterator_traits.h>
|
||
|
|
#include <thrust/iterator/reverse_iterator.h>
|
||
|
|
|
||
|
|
namespace thrust
|
||
|
|
{
|
||
|
|
namespace system
|
||
|
|
{
|
||
|
|
namespace detail
|
||
|
|
{
|
||
|
|
namespace generic
|
||
|
|
{
|
||
|
|
|
||
|
|
template<typename ExecutionPolicy, typename BidirectionalIterator>
|
||
|
|
void reverse(thrust::execution_policy<ExecutionPolicy> &exec,
|
||
|
|
BidirectionalIterator first,
|
||
|
|
BidirectionalIterator last)
|
||
|
|
{
|
||
|
|
typedef typename thrust::iterator_difference<BidirectionalIterator>::type difference_type;
|
||
|
|
|
||
|
|
// find the midpoint of [first,last)
|
||
|
|
difference_type N = thrust::distance(first, last);
|
||
|
|
BidirectionalIterator mid(first);
|
||
|
|
thrust::advance(mid, N / 2);
|
||
|
|
|
||
|
|
// swap elements of [first,mid) with [last - 1, mid)
|
||
|
|
thrust::swap_ranges(exec, first, mid, thrust::make_reverse_iterator(last));
|
||
|
|
} // end reverse()
|
||
|
|
|
||
|
|
template<typename ExecutionPolicy,
|
||
|
|
typename BidirectionalIterator,
|
||
|
|
typename OutputIterator>
|
||
|
|
OutputIterator reverse_copy(thrust::execution_policy<ExecutionPolicy> &exec,
|
||
|
|
BidirectionalIterator first,
|
||
|
|
BidirectionalIterator last,
|
||
|
|
OutputIterator result)
|
||
|
|
{
|
||
|
|
return thrust::copy(exec,
|
||
|
|
thrust::make_reverse_iterator(last),
|
||
|
|
thrust::make_reverse_iterator(first),
|
||
|
|
result);
|
||
|
|
} // end reverse_copy()
|
||
|
|
|
||
|
|
} // end namespace generic
|
||
|
|
} // end namespace detail
|
||
|
|
} // end namespace system
|
||
|
|
} // end namespace thrust
|
||
|
|
|
||
|
|
|