reduce_by_key.h

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/***************************************************************************
*   © 2012,2014 Advanced Micro Devices, Inc. All rights reserved.
*
*   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.

***************************************************************************/

#if !defined( BOLT_AMP_REDUCE_BY_KEY_H )
#define BOLT_AMP_REDUCE_BY_KEY_H
#pragma once

#include <bolt/amp/bolt.h>
#include <bolt/amp/pair.h>
#include "bolt/amp/scan.h"

namespace bolt
{
     namespace amp
        {

            template<
                typename InputIterator1,
                typename InputIterator2,
                typename OutputIterator1,
                typename OutputIterator2>
                bolt::amp::pair<OutputIterator1, OutputIterator2>
                reduce_by_key(
                control &ctl,
                InputIterator1  keys_first,
                InputIterator1  keys_last,
                InputIterator2  values_first,
                OutputIterator1  keys_output,
                OutputIterator2  values_output);

            template<
                typename InputIterator1,
                typename InputIterator2,
                typename OutputIterator1,
                typename OutputIterator2>
                bolt::amp::pair<OutputIterator1, OutputIterator2>
                reduce_by_key(
                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>
                bolt::amp::pair<OutputIterator1, OutputIterator2>
                reduce_by_key(
                control &ctl,
                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>
                bolt::amp::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 InputIterator1,
                typename InputIterator2,
                typename OutputIterator1,
                typename OutputIterator2,
                typename BinaryPredicate,
                typename BinaryFunction>
                bolt::amp::pair<OutputIterator1, OutputIterator2>
                reduce_by_key(
                control &ctl,
                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>
                bolt::amp::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 of bolt::amp
};// end of bolt namespace

#include <bolt/amp/detail/reduce_by_key.inl>

#endif