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.
77 lines
2.6 KiB
77 lines
2.6 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/adjacent_difference.h>
|
||
|
|
#include <thrust/adjacent_difference.h>
|
||
|
|
#include <thrust/functional.h>
|
||
|
|
#include <thrust/iterator/iterator_traits.h>
|
||
|
|
#include <thrust/detail/temporary_array.h>
|
||
|
|
#include <thrust/transform.h>
|
||
|
|
|
||
|
|
namespace thrust
|
||
|
|
{
|
||
|
|
namespace system
|
||
|
|
{
|
||
|
|
namespace detail
|
||
|
|
{
|
||
|
|
namespace generic
|
||
|
|
{
|
||
|
|
|
||
|
|
template <typename DerivedPolicy, class InputIterator, class OutputIterator>
|
||
|
|
OutputIterator adjacent_difference(thrust::execution_policy<DerivedPolicy> &exec,
|
||
|
|
InputIterator first, InputIterator last,
|
||
|
|
OutputIterator result)
|
||
|
|
{
|
||
|
|
typedef typename thrust::iterator_traits<InputIterator>::value_type InputType;
|
||
|
|
thrust::minus<InputType> binary_op;
|
||
|
|
|
||
|
|
return thrust::adjacent_difference(exec, first, last, result, binary_op);
|
||
|
|
} // end adjacent_difference()
|
||
|
|
|
||
|
|
template <typename DerivedPolicy, class InputIterator, class OutputIterator, class BinaryFunction>
|
||
|
|
OutputIterator adjacent_difference(thrust::execution_policy<DerivedPolicy> &exec,
|
||
|
|
InputIterator first, InputIterator last,
|
||
|
|
OutputIterator result,
|
||
|
|
BinaryFunction binary_op)
|
||
|
|
{
|
||
|
|
typedef typename thrust::iterator_traits<InputIterator>::value_type InputType;
|
||
|
|
|
||
|
|
if(first == last)
|
||
|
|
{
|
||
|
|
// empty range, nothing to do
|
||
|
|
return result;
|
||
|
|
}
|
||
|
|
else
|
||
|
|
{
|
||
|
|
// an in-place operation is requested, copy the input and call the entry point
|
||
|
|
// XXX a special-purpose kernel would be faster here since
|
||
|
|
// only block boundaries need to be copied
|
||
|
|
thrust::detail::temporary_array<InputType, DerivedPolicy> input_copy(exec, first, last);
|
||
|
|
|
||
|
|
*result = *first;
|
||
|
|
thrust::transform(exec, input_copy.begin() + 1, input_copy.end(), input_copy.begin(), result + 1, binary_op);
|
||
|
|
}
|
||
|
|
|
||
|
|
return result + (last - first);
|
||
|
|
}
|
||
|
|
|
||
|
|
} // end namespace generic
|
||
|
|
} // end namespace detail
|
||
|
|
} // end namespace system
|
||
|
|
} // end namespace thrust
|
||
|
|
|