GOSTCoin CUDA miner project, compatible with most nvidia cards, containing only gostd algo
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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 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.
*/
/*! \file unique_by_key.h
* \brief Sequential implementations of unique_by_key algorithms.
*/
#pragma once
#include <thrust/detail/config.h>
#include <thrust/iterator/iterator_traits.h>
#include <thrust/pair.h>
namespace thrust
{
namespace system
{
namespace detail
{
namespace internal
{
namespace scalar
{
template<typename InputIterator1,
typename InputIterator2,
typename OutputIterator1,
typename OutputIterator2,
typename BinaryPredicate>
thrust::pair<OutputIterator1,OutputIterator2>
unique_by_key_copy(InputIterator1 keys_first,
InputIterator1 keys_last,
InputIterator2 values_first,
OutputIterator1 keys_output,
OutputIterator2 values_output,
BinaryPredicate binary_pred)
{
typedef typename thrust::iterator_traits<InputIterator1>::value_type InputKeyType;
typedef typename thrust::iterator_traits<OutputIterator2>::value_type OutputValueType;
if(keys_first != keys_last)
{
InputKeyType temp_key = *keys_first;
OutputValueType temp_value = *values_first;
for(++keys_first, ++values_first;
keys_first != keys_last;
++keys_first, ++values_first)
{
InputKeyType key = *keys_first;
OutputValueType value = *values_first;
if(!binary_pred(temp_key, key))
{
*keys_output = temp_key;
*values_output = temp_value;
++keys_output;
++values_output;
temp_key = key;
temp_value = value;
}
}
*keys_output = temp_key;
*values_output = temp_value;
++keys_output;
++values_output;
}
return thrust::make_pair(keys_output, values_output);
} // end unique_by_key_copy()
template<typename ForwardIterator1,
typename ForwardIterator2,
typename BinaryPredicate>
thrust::pair<ForwardIterator1,ForwardIterator2>
unique_by_key(ForwardIterator1 keys_first,
ForwardIterator1 keys_last,
ForwardIterator2 values_first,
BinaryPredicate binary_pred)
{
// unique_by_key_copy() permits in-situ operation
return thrust::system::detail::internal::scalar::unique_by_key_copy(keys_first, keys_last, values_first, keys_first, values_first, binary_pred);
} // end unique_by_key()
} // end namespace scalar
} // end namespace internal
} // end namespace detail
} // end namespace system
} // end namespace thrust