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.
132 lines
4.2 KiB
132 lines
4.2 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.
|
||
|
*/
|
||
|
|
||
|
#pragma once
|
||
|
|
||
|
#include <thrust/detail/config.h>
|
||
|
#include <thrust/iterator/iterator_traits.h>
|
||
|
#include <thrust/iterator/detail/minimum_system.h>
|
||
|
#include <thrust/detail/copy.h>
|
||
|
#include <thrust/detail/temporary_array.h>
|
||
|
#include <thrust/system/cpp/detail/execution_policy.h>
|
||
|
|
||
|
namespace thrust
|
||
|
{
|
||
|
namespace detail
|
||
|
{
|
||
|
|
||
|
|
||
|
template<typename InputIterator,
|
||
|
typename OutputIterator>
|
||
|
OutputIterator sequential_copy(InputIterator first,
|
||
|
InputIterator last,
|
||
|
OutputIterator result)
|
||
|
{
|
||
|
for(; first != last; ++first, ++result)
|
||
|
{
|
||
|
*result = *first;
|
||
|
} // end for
|
||
|
|
||
|
return result;
|
||
|
} // end sequential_copy()
|
||
|
|
||
|
|
||
|
template<typename BidirectionalIterator1,
|
||
|
typename BidirectionalIterator2>
|
||
|
BidirectionalIterator2 sequential_copy_backward(BidirectionalIterator1 first,
|
||
|
BidirectionalIterator1 last,
|
||
|
BidirectionalIterator2 result)
|
||
|
{
|
||
|
// yes, we preincrement
|
||
|
// the ranges are open on the right, i.e. [first, last)
|
||
|
while(first != last)
|
||
|
{
|
||
|
*--result = *--last;
|
||
|
} // end while
|
||
|
|
||
|
return result;
|
||
|
} // end sequential_copy_backward()
|
||
|
|
||
|
|
||
|
namespace dispatch
|
||
|
{
|
||
|
|
||
|
|
||
|
template<typename DerivedPolicy,
|
||
|
typename RandomAccessIterator1,
|
||
|
typename RandomAccessIterator2>
|
||
|
RandomAccessIterator2 overlapped_copy(thrust::system::cpp::detail::execution_policy<DerivedPolicy> &,
|
||
|
RandomAccessIterator1 first,
|
||
|
RandomAccessIterator1 last,
|
||
|
RandomAccessIterator2 result)
|
||
|
{
|
||
|
if(first < last && first <= result && result < last)
|
||
|
{
|
||
|
// result lies in [first, last)
|
||
|
// it's safe to use std::copy_backward here
|
||
|
thrust::detail::sequential_copy_backward(first, last, result + (last - first));
|
||
|
result += (last - first);
|
||
|
} // end if
|
||
|
else
|
||
|
{
|
||
|
// result + (last - first) lies in [first, last)
|
||
|
// it's safe to use sequential_copy here
|
||
|
result = thrust::detail::sequential_copy(first, last, result);
|
||
|
} // end else
|
||
|
|
||
|
return result;
|
||
|
} // end overlapped_copy()
|
||
|
|
||
|
|
||
|
template<typename DerivedPolicy,
|
||
|
typename RandomAccessIterator1,
|
||
|
typename RandomAccessIterator2>
|
||
|
RandomAccessIterator2 overlapped_copy(thrust::execution_policy<DerivedPolicy> &exec,
|
||
|
RandomAccessIterator1 first,
|
||
|
RandomAccessIterator1 last,
|
||
|
RandomAccessIterator2 result)
|
||
|
{
|
||
|
typedef typename thrust::iterator_value<RandomAccessIterator1>::type value_type;
|
||
|
|
||
|
// make a temporary copy of [first,last), and copy into it first
|
||
|
thrust::detail::temporary_array<value_type, DerivedPolicy> temp(exec, first, last);
|
||
|
return thrust::copy(exec, temp.begin(), temp.end(), result);
|
||
|
} // end overlapped_copy()
|
||
|
|
||
|
} // end dispatch
|
||
|
|
||
|
|
||
|
template<typename RandomAccessIterator1,
|
||
|
typename RandomAccessIterator2>
|
||
|
RandomAccessIterator2 overlapped_copy(RandomAccessIterator1 first,
|
||
|
RandomAccessIterator1 last,
|
||
|
RandomAccessIterator2 result)
|
||
|
{
|
||
|
typedef typename thrust::iterator_system<RandomAccessIterator2>::type System1;
|
||
|
typedef typename thrust::iterator_system<RandomAccessIterator2>::type System2;
|
||
|
|
||
|
typedef typename thrust::detail::minimum_system<System1, System2>::type System;
|
||
|
|
||
|
// XXX presumes System is default constructible
|
||
|
System system;
|
||
|
|
||
|
return thrust::detail::dispatch::overlapped_copy(system, first, last, result);
|
||
|
} // end overlapped_copy()
|
||
|
|
||
|
} // end detail
|
||
|
} // end thrust
|
||
|
|