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.
87 lines
2.8 KiB
87 lines
2.8 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. |
|
*/ |
|
|
|
/*! \file trivial_sequence.h |
|
* \brief Container-like class for wrapping sequences. The wrapped |
|
* sequence always has trivial iterators, even when the input |
|
* sequence does not. |
|
*/ |
|
|
|
|
|
#pragma once |
|
|
|
#include <thrust/iterator/iterator_traits.h> |
|
#include <thrust/detail/type_traits.h> |
|
#include <thrust/detail/execution_policy.h> |
|
#include <thrust/detail/temporary_array.h> |
|
|
|
namespace thrust |
|
{ |
|
|
|
namespace detail |
|
{ |
|
|
|
// never instantiated |
|
template<typename Iterator, typename DerivedPolicy, typename is_trivial> struct _trivial_sequence { }; |
|
|
|
// trivial case |
|
template<typename Iterator, typename DerivedPolicy> |
|
struct _trivial_sequence<Iterator, DerivedPolicy, thrust::detail::true_type> |
|
{ |
|
typedef Iterator iterator_type; |
|
Iterator first, last; |
|
|
|
_trivial_sequence(thrust::execution_policy<DerivedPolicy> &, Iterator _first, Iterator _last) : first(_first), last(_last) |
|
{ |
|
// std::cout << "trivial case" << std::endl; |
|
} |
|
|
|
iterator_type begin() { return first; } |
|
iterator_type end() { return last; } |
|
}; |
|
|
|
// non-trivial case |
|
template<typename Iterator, typename DerivedPolicy> |
|
struct _trivial_sequence<Iterator, DerivedPolicy, thrust::detail::false_type> |
|
{ |
|
typedef typename thrust::iterator_value<Iterator>::type iterator_value; |
|
typedef typename thrust::detail::temporary_array<iterator_value, DerivedPolicy>::iterator iterator_type; |
|
|
|
thrust::detail::temporary_array<iterator_value, DerivedPolicy> buffer; |
|
|
|
_trivial_sequence(thrust::execution_policy<DerivedPolicy> &exec, Iterator first, Iterator last) |
|
: buffer(exec, first, last) |
|
{ |
|
// std::cout << "non-trivial case" << std::endl; |
|
} |
|
|
|
iterator_type begin() { return buffer.begin(); } |
|
iterator_type end() { return buffer.end(); } |
|
}; |
|
|
|
template <typename Iterator, typename DerivedPolicy> |
|
struct trivial_sequence |
|
: detail::_trivial_sequence<Iterator, DerivedPolicy, typename thrust::detail::is_trivial_iterator<Iterator>::type> |
|
{ |
|
typedef _trivial_sequence<Iterator, DerivedPolicy, typename thrust::detail::is_trivial_iterator<Iterator>::type> super_t; |
|
|
|
trivial_sequence(thrust::execution_policy<DerivedPolicy> &exec, Iterator first, Iterator last) : super_t(exec, first, last) { } |
|
}; |
|
|
|
} // end namespace detail |
|
|
|
} // end namespace thrust |
|
|
|
|