text: /*
   *  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/system/detail/generic/tag.h>
  #include <thrust/pair.h>
  
  namespace thrust
  {
  namespace system
  {
  namespace detail
  {
  namespace generic
  {
  
  
  template<typename ForwardIterator1,
           typename ForwardIterator2>
    thrust::pair<ForwardIterator1,ForwardIterator2>
      unique_by_key(tag,
                    ForwardIterator1 keys_first, 
                    ForwardIterator1 keys_last,
                    ForwardIterator2 values_first);
  
  
  template<typename ForwardIterator1,
           typename ForwardIterator2,
           typename BinaryPredicate>
    thrust::pair<ForwardIterator1,ForwardIterator2>
      unique_by_key(tag,
                    ForwardIterator1 keys_first, 
                    ForwardIterator1 keys_last,
                    ForwardIterator2 values_first,
                    BinaryPredicate binary_pred);
  
  
  template<typename InputIterator1,
           typename InputIterator2,
           typename OutputIterator1,
           typename OutputIterator2>
    thrust::pair<OutputIterator1,OutputIterator2>
      unique_by_key_copy(tag,
                         InputIterator1 keys_first, 
                         InputIterator1 keys_last,
                         InputIterator2 values_first,
                         OutputIterator1 keys_output,
                         OutputIterator2 values_output);
  
  
  template<typename InputIterator1,
           typename InputIterator2,
           typename OutputIterator1,
           typename OutputIterator2,
           typename BinaryPredicate>
    thrust::pair<OutputIterator1,OutputIterator2>
      unique_by_key_copy(tag,
                         InputIterator1 keys_first, 
                         InputIterator1 keys_last,
                         InputIterator2 values_first,
                         OutputIterator1 keys_output,
                         OutputIterator2 values_output,
                         BinaryPredicate binary_pred);
  
  
  } // end namespace generic
  } // end namespace detail
  } // end namespace system
  } // end namespace thrust
  
  #include <thrust/system/detail/generic/unique_by_key.inl>
  
  