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.
111 lines
2.6 KiB
111 lines
2.6 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. |
|
*/ |
|
|
|
#pragma once |
|
|
|
#include <thrust/detail/type_traits.h> |
|
#include <thrust/iterator/iterator_traits.h> |
|
#include <thrust/detail/use_default.h> |
|
#include <thrust/iterator/iterator_facade.h> |
|
|
|
namespace thrust |
|
{ |
|
|
|
|
|
// forward declaration of iterator_adaptor for iterator_adaptor_base below |
|
template<typename Derived, |
|
typename Base, |
|
typename Value, |
|
typename System, |
|
typename Traversal, |
|
typename Reference, |
|
typename Difference |
|
> |
|
class iterator_adaptor; |
|
|
|
|
|
namespace detail |
|
{ |
|
|
|
// If T is use_default, return the result of invoking |
|
// DefaultNullaryFn, otherwise return T. |
|
// XXX rename to dflt_help |
|
template <class T, class DefaultNullaryFn> |
|
struct ia_dflt_help |
|
: thrust::detail::eval_if< |
|
thrust::detail::is_same<T, thrust::use_default>::value |
|
, DefaultNullaryFn |
|
, thrust::detail::identity_<T> |
|
> |
|
{ |
|
}; // end ia_dflt_help |
|
|
|
|
|
// A metafunction which computes an iterator_adaptor's base class, |
|
// a specialization of iterator_facade. |
|
template<typename Derived, |
|
typename Base, |
|
typename Value, |
|
typename System, |
|
typename Traversal, |
|
typename Reference, |
|
typename Difference |
|
> |
|
struct iterator_adaptor_base |
|
{ |
|
typedef typename ia_dflt_help< |
|
Value, |
|
iterator_value<Base> |
|
>::type value; |
|
|
|
typedef typename ia_dflt_help< |
|
System, |
|
thrust::iterator_system<Base> |
|
>::type system; |
|
|
|
typedef typename ia_dflt_help< |
|
Traversal, |
|
thrust::iterator_traversal<Base> |
|
>::type traversal; |
|
|
|
typedef typename ia_dflt_help< |
|
Reference, |
|
thrust::detail::eval_if< |
|
thrust::detail::is_same<Value,use_default>::value, |
|
thrust::iterator_reference<Base>, |
|
thrust::detail::add_reference<Value> |
|
> |
|
>::type reference; |
|
|
|
typedef typename ia_dflt_help< |
|
Difference, |
|
iterator_difference<Base> |
|
>::type difference; |
|
|
|
typedef thrust::iterator_facade< |
|
Derived, |
|
value, |
|
system, |
|
traversal, |
|
reference, |
|
difference |
|
> type; |
|
}; // end iterator_adaptor_base |
|
|
|
|
|
} // end detail |
|
} // end thrust |
|
|
|
|