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/*

 *  Copyright 2008-2012 NVIDIA Corporation

 *

 *  Licensed under the Apache License, Version 2.0 (the "License");

 *  you may not use this file except in ctbbliance 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/tbb/detail/unique_by_key.h>

#include <thrust/system/detail/generic/unique_by_key.h>

#include <thrust/pair.h>

 

namespace thrust

{

namespace system

{

namespace tbb

{

namespace detail

{

 

 

template<typename DerivedPolicy,

         typename ForwardIterator1,

         typename ForwardIterator2,

         typename BinaryPredicate>

  thrust::pair<ForwardIterator1,ForwardIterator2>

    unique_by_key(execution_policy<DerivedPolicy> &exec,

                  ForwardIterator1 keys_first, 

                  ForwardIterator1 keys_last,

                  ForwardIterator2 values_first,

                  BinaryPredicate binary_pred)

{

  // tbb prefers generic::unique_by_key to cpp::unique_by_key

  return thrust::system::detail::generic::unique_by_key(exec,keys_first,keys_last,values_first,binary_pred);

} // end unique_by_key()

 

 

template<typename DerivedPolicy,

         typename InputIterator1,

         typename InputIterator2,

         typename OutputIterator1,

         typename OutputIterator2,

         typename BinaryPredicate>

  thrust::pair<OutputIterator1,OutputIterator2>

    unique_by_key_copy(execution_policy<DerivedPolicy> &exec,

                       InputIterator1 keys_first, 

                       InputIterator1 keys_last,

                       InputIterator2 values_first,

                       OutputIterator1 keys_output,

                       OutputIterator2 values_output,

                       BinaryPredicate binary_pred)

{

  // tbb prefers generic::unique_by_key_copy to cpp::unique_by_key_copy

  return thrust::system::detail::generic::unique_by_key_copy(exec,keys_first,keys_last,values_first,keys_output,values_output,binary_pred);

} // end unique_by_key_copy()

 

 

} // end namespace detail

} // end namespace tbb

} // end namespace system

} // end namespace thrust