Program Listing for File reduce.h

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/*
 *  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/detail/execution_policy.h>
#include <thrust/iterator/iterator_traits.h>
#include <thrust/pair.h>

namespace thrust
{


template<typename DerivedPolicy, typename InputIterator>
__host__ __device__
  typename thrust::iterator_traits<InputIterator>::value_type
    reduce(const thrust::detail::execution_policy_base<DerivedPolicy> &exec, InputIterator first, InputIterator last);


template<typename InputIterator> typename
  thrust::iterator_traits<InputIterator>::value_type reduce(InputIterator first, InputIterator last);


template<typename DerivedPolicy, typename InputIterator, typename T>
__host__ __device__
  T reduce(const thrust::detail::execution_policy_base<DerivedPolicy> &exec,
           InputIterator first,
           InputIterator last,
           T init);


template<typename InputIterator, typename T>
  T reduce(InputIterator first,
           InputIterator last,
           T init);


template<typename DerivedPolicy,
         typename InputIterator,
         typename T,
         typename BinaryFunction>
__host__ __device__
  T reduce(const thrust::detail::execution_policy_base<DerivedPolicy> &exec,
           InputIterator first,
           InputIterator last,
           T init,
           BinaryFunction binary_op);


template<typename InputIterator,
         typename T,
         typename BinaryFunction>
  T reduce(InputIterator first,
           InputIterator last,
           T init,
           BinaryFunction binary_op);


template<typename DerivedPolicy,
         typename InputIterator1,
         typename InputIterator2,
         typename OutputIterator1,
         typename OutputIterator2>
__host__ __device__
  thrust::pair<OutputIterator1,OutputIterator2>
  reduce_by_key(const thrust::detail::execution_policy_base<DerivedPolicy> &exec,
                InputIterator1 keys_first,
                InputIterator1 keys_last,
                InputIterator2 values_first,
                OutputIterator1 keys_output,
                OutputIterator2 values_output);


template<typename InputIterator1,
         typename InputIterator2,
         typename OutputIterator1,
         typename OutputIterator2>
  thrust::pair<OutputIterator1,OutputIterator2>
  reduce_by_key(InputIterator1 keys_first,
                InputIterator1 keys_last,
                InputIterator2 values_first,
                OutputIterator1 keys_output,
                OutputIterator2 values_output);


template<typename DerivedPolicy,
         typename InputIterator1,
         typename InputIterator2,
         typename OutputIterator1,
         typename OutputIterator2,
         typename BinaryPredicate>
__host__ __device__
  thrust::pair<OutputIterator1,OutputIterator2>
  reduce_by_key(const thrust::detail::execution_policy_base<DerivedPolicy> &exec,
                InputIterator1 keys_first,
                InputIterator1 keys_last,
                InputIterator2 values_first,
                OutputIterator1 keys_output,
                OutputIterator2 values_output,
                BinaryPredicate binary_pred);


template<typename InputIterator1,
         typename InputIterator2,
         typename OutputIterator1,
         typename OutputIterator2,
         typename BinaryPredicate>
  thrust::pair<OutputIterator1,OutputIterator2>
  reduce_by_key(InputIterator1 keys_first,
                InputIterator1 keys_last,
                InputIterator2 values_first,
                OutputIterator1 keys_output,
                OutputIterator2 values_output,
                BinaryPredicate binary_pred);


template<typename DerivedPolicy,
         typename InputIterator1,
         typename InputIterator2,
         typename OutputIterator1,
         typename OutputIterator2,
         typename BinaryPredicate,
         typename BinaryFunction>
__host__ __device__
  thrust::pair<OutputIterator1,OutputIterator2>
  reduce_by_key(const thrust::detail::execution_policy_base<DerivedPolicy> &exec,
                InputIterator1 keys_first,
                InputIterator1 keys_last,
                InputIterator2 values_first,
                OutputIterator1 keys_output,
                OutputIterator2 values_output,
                BinaryPredicate binary_pred,
                BinaryFunction binary_op);


template<typename InputIterator1,
         typename InputIterator2,
         typename OutputIterator1,
         typename OutputIterator2,
         typename BinaryPredicate,
         typename BinaryFunction>
  thrust::pair<OutputIterator1,OutputIterator2>
  reduce_by_key(InputIterator1 keys_first,
                InputIterator1 keys_last,
                InputIterator2 values_first,
                OutputIterator1 keys_output,
                OutputIterator2 values_output,
                BinaryPredicate binary_pred,
                BinaryFunction binary_op);


} // end namespace thrust

#include <thrust/detail/reduce.inl>