text: /*
   *  Copyright 2008-2013 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/iterator/iterator_adaptor.h>
  #include <thrust/iterator/iterator_traits.h>
  #include <thrust/detail/use_default.h>
  
  namespace thrust
  {
  namespace detail
  {
  
  template <typename,typename> class tagged_iterator;
  
  template<typename Iterator, typename Tag>
    struct tagged_iterator_base
  {
    typedef thrust::iterator_adaptor<
      tagged_iterator<Iterator,Tag>,
      Iterator,
      typename thrust::iterator_value<Iterator>::type,
      Tag,
      typename thrust::iterator_traversal<Iterator>::type,
      typename thrust::iterator_reference<Iterator>::type,
      typename thrust::iterator_difference<Iterator>::type
    > type;
  }; // end tagged_iterator_base
  
  template<typename Iterator, typename Tag>
    class tagged_iterator
      : public tagged_iterator_base<Iterator,Tag>::type
  {
    private:
      typedef typename tagged_iterator_base<Iterator,Tag>::type super_t;
  
    public:
      __host__ __device__
      tagged_iterator(void) {}
  
      __host__ __device__
      explicit tagged_iterator(Iterator x)
        : super_t(x) {}
  }; // end tagged_iterator
  
  
  // specialize is_trivial_iterator for tagged_iterator
  template<typename> struct is_trivial_iterator;
  
  // tagged_iterator is trivial if its base iterator is
  template<typename BaseIterator, typename Tag>
    struct is_trivial_iterator<tagged_iterator<BaseIterator,Tag> >
      : is_trivial_iterator<BaseIterator>
  {};
  
  
  } // end detail
  } // end thrust
  
  