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71 lines
2.5 KiB
71 lines
2.5 KiB
11 years ago
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/*
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* Copyright 2008-2012 NVIDIA Corporation
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <thrust/detail/config.h>
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#include <thrust/system/detail/generic/mismatch.h>
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#include <thrust/iterator/iterator_traits.h>
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#include <thrust/detail/internal_functional.h>
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#include <thrust/find.h>
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namespace thrust
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{
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namespace system
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{
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namespace detail
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{
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namespace generic
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{
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template<typename DerivedPolicy, typename InputIterator1, typename InputIterator2>
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thrust::pair<InputIterator1, InputIterator2>
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mismatch(thrust::execution_policy<DerivedPolicy> &exec,
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InputIterator1 first1,
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InputIterator1 last1,
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InputIterator2 first2)
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{
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typedef typename thrust::iterator_value<InputIterator1>::type InputType1;
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// XXX use a placeholder expression here
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return thrust::mismatch(exec, first1, last1, first2, thrust::detail::equal_to<InputType1>());
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} // end mismatch()
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template<typename DerivedPolicy, typename InputIterator1, typename InputIterator2, typename BinaryPredicate>
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thrust::pair<InputIterator1, InputIterator2>
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mismatch(thrust::execution_policy<DerivedPolicy> &exec,
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InputIterator1 first1,
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InputIterator1 last1,
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InputIterator2 first2,
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BinaryPredicate pred)
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{
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// Contributed by Erich Elsen
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typedef thrust::tuple<InputIterator1,InputIterator2> IteratorTuple;
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typedef thrust::zip_iterator<IteratorTuple> ZipIterator;
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ZipIterator zipped_first = thrust::make_zip_iterator(thrust::make_tuple(first1,first2));
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ZipIterator zipped_last = thrust::make_zip_iterator(thrust::make_tuple(last1, first2));
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ZipIterator result = thrust::find_if_not(exec, zipped_first, zipped_last, thrust::detail::tuple_binary_predicate<BinaryPredicate>(pred));
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return thrust::make_pair(thrust::get<0>(result.get_iterator_tuple()),
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thrust::get<1>(result.get_iterator_tuple()));
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} // end mismatch()
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} // end generic
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} // end detail
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} // end system
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} // end thrust
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