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.
140 lines
3.5 KiB
140 lines
3.5 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/config.h> |
|
#include <thrust/detail/type_traits.h> |
|
#include <thrust/iterator/detail/tagged_iterator.h> |
|
#include <thrust/detail/pointer.h> |
|
|
|
namespace thrust |
|
{ |
|
namespace detail |
|
{ |
|
|
|
|
|
// we can retag an iterator if FromTag converts to ToTag |
|
// or vice versa |
|
template<typename FromTag, typename ToTag> |
|
struct is_retaggable |
|
: integral_constant< |
|
bool, |
|
(is_convertible<FromTag,ToTag>::value || is_convertible<ToTag,FromTag>::value) |
|
> |
|
{}; |
|
|
|
|
|
template<typename FromTag, typename ToTag, typename Result> |
|
struct enable_if_retaggable |
|
: enable_if< |
|
is_retaggable<FromTag,ToTag>::value, |
|
Result |
|
> |
|
{}; // end enable_if_retaggable |
|
|
|
|
|
} // end detail |
|
|
|
|
|
template<typename Tag, typename Iterator> |
|
thrust::detail::tagged_iterator<Iterator,Tag> |
|
reinterpret_tag(Iterator iter) |
|
{ |
|
return thrust::detail::tagged_iterator<Iterator,Tag>(iter); |
|
} // end reinterpret_tag() |
|
|
|
|
|
// specialization for raw pointer |
|
template<typename Tag, typename T> |
|
thrust::pointer<T,Tag> |
|
reinterpret_tag(T *ptr) |
|
{ |
|
return thrust::pointer<T,Tag>(ptr); |
|
} // end reinterpret_tag() |
|
|
|
|
|
// specialization for thrust::pointer |
|
template<typename Tag, typename T, typename OtherTag, typename Reference, typename Derived> |
|
thrust::pointer<T,Tag> |
|
reinterpret_tag(thrust::pointer<T,OtherTag,Reference,Derived> ptr) |
|
{ |
|
return reinterpret_tag<Tag>(ptr.get()); |
|
} // end reinterpret_tag() |
|
|
|
|
|
// avoid deeply-nested tagged_iterator |
|
template<typename Tag, typename BaseIterator, typename OtherTag> |
|
thrust::detail::tagged_iterator<BaseIterator,Tag> |
|
reinterpret_tag(thrust::detail::tagged_iterator<BaseIterator,OtherTag> iter) |
|
{ |
|
return reinterpret_tag<Tag>(iter.base()); |
|
} // end reinterpret_tag() |
|
|
|
|
|
template<typename Tag, typename Iterator> |
|
typename thrust::detail::enable_if_retaggable< |
|
typename thrust::iterator_system<Iterator>::type, |
|
Tag, |
|
thrust::detail::tagged_iterator<Iterator,Tag> |
|
>::type |
|
retag(Iterator iter) |
|
{ |
|
return reinterpret_tag<Tag>(iter); |
|
} // end retag() |
|
|
|
|
|
// specialization for raw pointer |
|
template<typename Tag, typename T> |
|
typename thrust::detail::enable_if_retaggable< |
|
typename thrust::iterator_system<T*>::type, |
|
Tag, |
|
thrust::pointer<T,Tag> |
|
>::type |
|
retag(T *ptr) |
|
{ |
|
return reinterpret_tag<Tag>(ptr); |
|
} // end retag() |
|
|
|
|
|
// specialization for thrust::pointer |
|
template<typename Tag, typename T, typename OtherTag> |
|
typename thrust::detail::enable_if_retaggable< |
|
OtherTag, |
|
Tag, |
|
thrust::pointer<T,Tag> |
|
>::type |
|
retag(thrust::pointer<T,OtherTag> ptr) |
|
{ |
|
return reinterpret_tag<Tag>(ptr); |
|
} // end retag() |
|
|
|
|
|
// avoid deeply-nested tagged_iterator |
|
template<typename Tag, typename BaseIterator, typename OtherTag> |
|
typename thrust::detail::enable_if_retaggable< |
|
OtherTag, |
|
Tag, |
|
thrust::detail::tagged_iterator<BaseIterator,Tag> |
|
>::type |
|
retag(thrust::detail::tagged_iterator<BaseIterator,OtherTag> iter) |
|
{ |
|
return reinterpret_tag<Tag>(iter); |
|
} // end retag() |
|
|
|
|
|
} // end thrust |
|
|
|
|