util/X86LINUX64/cuda-6.5/include/thrust/detail/allocator/tagged_allocator.h

   1 /*
   2  *  Copyright 2008-2013 NVIDIA Corporation
   3  *
   4  *  Licensed under the Apache License, Version 2.0 (the "License");
   5  *  you may not use this file except in compliance with the License.
   6  *  You may obtain a copy of the License at
   7  *
   8  *      http://www.apache.org/licenses/LICENSE-2.0
   9  *
  10  *  Unless required by applicable law or agreed to in writing, software
  11  *  distributed under the License is distributed on an "AS IS" BASIS,
  12  *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  *  See the License for the specific language governing permissions and
  14  *  limitations under the License.
  15  */
  16
  17 #pragma once
  18
  19 #include <thrust/detail/config.h>
  20 #include <thrust/detail/type_traits/pointer_traits.h>
  21 #include <thrust/iterator/iterator_traits.h>
  22
  23 namespace thrust
  24 {
  25 namespace detail
  26 {
  27
  28 template<typename T, typename Tag, typename Pointer> class tagged_allocator;
  29
  30 template<typename Tag, typename Pointer>
  31   class tagged_allocator<void, Tag, Pointer>
  32 {
  33   public:
  34     typedef void                                                                                 value_type;
  35     typedef typename thrust::detail::pointer_traits<Pointer>::template rebind<void>::other       pointer;
  36     typedef typename thrust::detail::pointer_traits<Pointer>::template rebind<const void>::other const_pointer;
  37     typedef std::size_t                                                                          size_type;
  38     typedef typename thrust::detail::pointer_traits<Pointer>::difference_type                    difference_type;
  39     typedef Tag                                                                                  system_type;
  40
  41     template<typename U>
  42       struct rebind
  43     {
  44       typedef tagged_allocator<U,Tag,Pointer> other;
  45     }; // end rebind
  46 };
  47
  48 template<typename T, typename Tag, typename Pointer>
  49   class tagged_allocator
  50 {
  51   public:
  52     typedef T                                                                                 value_type;
  53     typedef typename thrust::detail::pointer_traits<Pointer>::template rebind<T>::other       pointer;
  54     typedef typename thrust::detail::pointer_traits<Pointer>::template rebind<const T>::other const_pointer;
  55     typedef typename thrust::iterator_reference<pointer>::type                                reference;
  56     typedef typename thrust::iterator_reference<const_pointer>::type                          const_reference;
  57     typedef std::size_t                                                                       size_type;
  58     typedef typename thrust::detail::pointer_traits<pointer>::difference_type                 difference_type;
  59     typedef Tag                                                                               system_type;
  60
  61     template<typename U>
  62       struct rebind
  63     {
  64       typedef tagged_allocator<U,Tag,Pointer> other;
  65     }; // end rebind
  66
  67     __host__ __device__
  68     inline tagged_allocator();
  69
  70     __host__ __device__
  71     inline tagged_allocator(const tagged_allocator &);
  72
  73     template<typename U, typename OtherPointer>
  74     __host__ __device__
  75     inline tagged_allocator(const tagged_allocator<U, Tag, OtherPointer> &);
  76
  77     __host__ __device__
  78     inline ~tagged_allocator();
  79
  80     __host__ __device__
  81     pointer address(reference x) const;
  82
  83     __host__ __device__
  84     const_pointer address(const_reference x) const;
  85
  86     size_type max_size() const;
  87 };
  88
  89 template<typename T1, typename Pointer1, typename T2, typename Pointer2, typename Tag>
  90 __host__ __device__
  91 bool operator==(const tagged_allocator<T1,Pointer1,Tag> &, const tagged_allocator<T2,Pointer2,Tag> &);
  92
  93 template<typename T1, typename Pointer1, typename T2, typename Pointer2, typename Tag>
  94 __host__ __device__
  95 bool operator!=(const tagged_allocator<T1,Pointer1,Tag> &, const tagged_allocator<T2,Pointer2,Tag> &);
  96
  97 } // end detail
  98 } // end thrust
  99
 100 #include <thrust/detail/allocator/tagged_allocator.inl>
 101