util/X86LINUX64/cuda-6.5/include/thrust/detail/pointer.inl

   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 #include <thrust/detail/config.h>
  18 #include <thrust/detail/pointer.h>
  19
  20
  21 namespace thrust
  22 {
  23
  24
  25 template<typename Element, typename Tag, typename Reference, typename Derived>
  26   pointer<Element,Tag,Reference,Derived>
  27     ::pointer()
  28       : super_t(static_cast<Element*>(0))
  29 {} // end pointer::pointer
  30
  31
  32 template<typename Element, typename Tag, typename Reference, typename Derived>
  33   template<typename OtherElement>
  34     pointer<Element,Tag,Reference,Derived>
  35       ::pointer(OtherElement *other)
  36         : super_t(other)
  37 {} // end pointer::pointer
  38
  39
  40 template<typename Element, typename Tag, typename Reference, typename Derived>
  41   template<typename OtherPointer>
  42     pointer<Element,Tag,Reference,Derived>
  43       ::pointer(const OtherPointer &other,
  44                 typename thrust::detail::enable_if_pointer_is_convertible<
  45                   OtherPointer,
  46                   pointer<Element,Tag,Reference,Derived>
  47                  >::type *)
  48         : super_t(thrust::detail::pointer_traits<OtherPointer>::get(other))
  49 {} // end pointer::pointer
  50
  51
  52 template<typename Element, typename Tag, typename Reference, typename Derived>
  53   template<typename OtherPointer>
  54     typename thrust::detail::enable_if_pointer_is_convertible<
  55       OtherPointer,
  56       pointer<Element,Tag,Reference,Derived>,
  57       typename pointer<Element,Tag,Reference,Derived>::derived_type &
  58     >::type
  59       pointer<Element,Tag,Reference,Derived>
  60         ::operator=(const OtherPointer &other)
  61 {
  62   super_t::base_reference() = thrust::detail::pointer_traits<OtherPointer>::get(other);
  63   return static_cast<derived_type&>(*this);
  64 } // end pointer::operator=
  65
  66
  67 template<typename Element, typename Tag, typename Reference, typename Derived>
  68   typename pointer<Element,Tag,Reference,Derived>::super_t::reference
  69     pointer<Element,Tag,Reference,Derived>
  70       ::dereference() const
  71 {
  72   return typename super_t::reference(static_cast<const derived_type&>(*this));
  73 } // end pointer::dereference
  74
  75
  76 template<typename Element, typename Tag, typename Reference, typename Derived>
  77   Element *pointer<Element,Tag,Reference,Derived>
  78     ::get() const
  79 {
  80   return super_t::base();
  81 } // end pointer::get
  82
  83
  84 namespace detail
  85 {
  86
  87 #if (THRUST_HOST_COMPILER == THRUST_HOST_COMPILER_MSVC) && (_MSC_VER <= 1400)
  88 // XXX WAR MSVC 2005 problem with correctly implementing
  89 //     pointer_raw_pointer for pointer by specializing it here
  90 template<typename Element, typename Tag, typename Reference, typename Derived>
  91   struct pointer_raw_pointer< thrust::pointer<Element,Tag,Reference,Derived> >
  92 {
  93   typedef typename pointer<Element,Tag,Reference,Derived>::raw_pointer type;
  94 }; // end pointer_raw_pointer
  95 #endif
  96
  97
  98 #if (THRUST_HOST_COMPILER == THRUST_HOST_COMPILER_GCC) && (THRUST_GCC_VERSION < 40200)
  99 // XXX WAR g++-4.1 problem with correctly implementing
 100 //     pointer_element for pointer by specializing it here
 101 template<typename Element, typename Tag>
 102   struct pointer_element< thrust::pointer<Element,Tag> >
 103 {
 104   typedef Element type;
 105 }; // end pointer_element
 106
 107 template<typename Element, typename Tag, typename Reference>
 108   struct pointer_element< thrust::pointer<Element,Tag,Reference> >
 109     : pointer_element< thrust::pointer<Element,Tag> >
 110 {}; // end pointer_element
 111
 112 template<typename Element, typename Tag, typename Reference, typename Derived>
 113   struct pointer_element< thrust::pointer<Element,Tag,Reference,Derived> >
 114     : pointer_element< thrust::pointer<Element,Tag,Reference> >
 115 {}; // end pointer_element
 116
 117
 118
 119 // XXX WAR g++-4.1 problem with correctly implementing
 120 //     rebind_pointer for pointer by specializing it here
 121 template<typename Element, typename Tag, typename NewElement>
 122   struct rebind_pointer<thrust::pointer<Element,Tag>, NewElement>
 123 {
 124   // XXX note we don't attempt to rebind the pointer's Reference type (or Derived)
 125   typedef thrust::pointer<NewElement,Tag> type;
 126 };
 127
 128 template<typename Element, typename Tag, typename Reference, typename NewElement>
 129   struct rebind_pointer<thrust::pointer<Element,Tag,Reference>, NewElement>
 130     : rebind_pointer<thrust::pointer<Element,Tag>, NewElement>
 131 {};
 132
 133 template<typename Element, typename Tag, typename Reference, typename Derived, typename NewElement>
 134   struct rebind_pointer<thrust::pointer<Element,Tag,Reference,Derived>, NewElement>
 135     : rebind_pointer<thrust::pointer<Element,Tag,Reference>, NewElement>
 136 {};
 137 #endif
 138
 139 } // end namespace detail
 140
 141
 142 } // end thrust
 143