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247 lines
11 KiB
247 lines
11 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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#pragma once
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#include <thrust/detail/config.h>
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#include <thrust/tuple.h>
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#include <thrust/pair.h>
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#include <thrust/detail/reference_forward_declaration.h>
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namespace thrust
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{
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namespace detail
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{
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template<
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typename T0, typename T1, typename T2,
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typename T3, typename T4, typename T5,
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typename T6, typename T7, typename T8,
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typename T9
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>
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class tuple_of_iterator_references
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: public thrust::tuple<T0,T1,T2,T3,T4,T5,T6,T7,T8,T9>
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{
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private:
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typedef thrust::tuple<T0,T1,T2,T3,T4,T5,T6,T7,T8,T9> super_t;
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public:
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// allow implicit construction from tuple<refs>
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inline __host__ __device__
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tuple_of_iterator_references(const super_t &other)
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: super_t(other)
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{}
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// allow assignment from tuples
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// XXX might be worthwhile to guard this with an enable_if is_assignable
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template<typename U1, typename U2>
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inline __host__ __device__
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tuple_of_iterator_references &operator=(const detail::cons<U1,U2> &other)
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{
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super_t::operator=(other);
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return *this;
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}
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// allow assignment from pairs
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// XXX might be worthwhile to guard this with an enable_if is_assignable
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template<typename U1, typename U2>
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inline __host__ __device__
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tuple_of_iterator_references &operator=(const thrust::pair<U1,U2> &other)
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{
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super_t::operator=(other);
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return *this;
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}
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// allow assignment from reference<tuple>
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// XXX perhaps we should generalize to reference<T>
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// we could captures reference<pair> this way
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template<typename U0, typename U1, typename U2,
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typename U3, typename U4, typename U5,
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typename U6, typename U7, typename U8,
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typename U9,
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typename Pointer, typename Derived>
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inline __host__ __device__
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// XXX gcc-4.2 crashes on is_assignable
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// typename thrust::detail::enable_if<
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// thrust::detail::is_assignable<
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// super_t,
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// const thrust::tuple<U0,U1,U2,U3,U4,U5,U6,U7,U8,U9>
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// >::value,
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// tuple_of_iterator_references &
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// >::type
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tuple_of_iterator_references &
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operator=(const thrust::reference<thrust::tuple<U0,U1,U2,U3,U4,U5,U6,U7,U8,U9>, Pointer, Derived> &other)
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{
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typedef thrust::tuple<U0,U1,U2,U3,U4,U5,U6,U7,U8,U9> tuple_type;
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// XXX perhaps this could be accelerated
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tuple_type other_tuple = other;
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super_t::operator=(other_tuple);
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return *this;
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}
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// duplicate thrust::tuple's constructors
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inline __host__ __device__
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tuple_of_iterator_references() {}
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inline __host__ __device__
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tuple_of_iterator_references(typename access_traits<T0>::parameter_type t0)
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: super_t(t0,
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()))
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{}
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inline __host__ __device__
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tuple_of_iterator_references(typename access_traits<T0>::parameter_type t0,
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typename access_traits<T1>::parameter_type t1)
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: super_t(t0, t1,
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()))
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{}
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inline __host__ __device__
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tuple_of_iterator_references(typename access_traits<T0>::parameter_type t0,
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typename access_traits<T1>::parameter_type t1,
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typename access_traits<T2>::parameter_type t2)
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: super_t(t0, t1, t2,
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()))
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{}
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inline __host__ __device__
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tuple_of_iterator_references(typename access_traits<T0>::parameter_type t0,
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typename access_traits<T1>::parameter_type t1,
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typename access_traits<T2>::parameter_type t2,
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typename access_traits<T3>::parameter_type t3)
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: super_t(t0, t1, t2, t3,
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()))
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{}
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inline __host__ __device__
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tuple_of_iterator_references(typename access_traits<T0>::parameter_type t0,
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typename access_traits<T1>::parameter_type t1,
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typename access_traits<T2>::parameter_type t2,
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typename access_traits<T3>::parameter_type t3,
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typename access_traits<T4>::parameter_type t4)
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: super_t(t0, t1, t2, t3, t4,
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()))
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{}
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inline __host__ __device__
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tuple_of_iterator_references(typename access_traits<T0>::parameter_type t0,
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typename access_traits<T1>::parameter_type t1,
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typename access_traits<T2>::parameter_type t2,
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typename access_traits<T3>::parameter_type t3,
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typename access_traits<T4>::parameter_type t4,
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typename access_traits<T5>::parameter_type t5)
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: super_t(t0, t1, t2, t3, t4, t5,
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()))
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{}
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inline __host__ __device__
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tuple_of_iterator_references(typename access_traits<T0>::parameter_type t0,
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typename access_traits<T1>::parameter_type t1,
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typename access_traits<T2>::parameter_type t2,
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typename access_traits<T3>::parameter_type t3,
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typename access_traits<T4>::parameter_type t4,
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typename access_traits<T5>::parameter_type t5,
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typename access_traits<T6>::parameter_type t6)
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: super_t(t0, t1, t2, t3, t4, t5, t6,
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()))
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{}
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inline __host__ __device__
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tuple_of_iterator_references(typename access_traits<T0>::parameter_type t0,
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typename access_traits<T1>::parameter_type t1,
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typename access_traits<T2>::parameter_type t2,
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typename access_traits<T3>::parameter_type t3,
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typename access_traits<T4>::parameter_type t4,
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typename access_traits<T5>::parameter_type t5,
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typename access_traits<T6>::parameter_type t6,
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typename access_traits<T7>::parameter_type t7)
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: super_t(t0, t1, t2, t3, t4, t5, t6, t7,
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static_cast<const null_type&>(null_type()),
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static_cast<const null_type&>(null_type()))
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{}
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inline __host__ __device__
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tuple_of_iterator_references(typename access_traits<T0>::parameter_type t0,
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typename access_traits<T1>::parameter_type t1,
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typename access_traits<T2>::parameter_type t2,
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typename access_traits<T3>::parameter_type t3,
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typename access_traits<T4>::parameter_type t4,
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typename access_traits<T5>::parameter_type t5,
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typename access_traits<T6>::parameter_type t6,
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typename access_traits<T7>::parameter_type t7,
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typename access_traits<T8>::parameter_type t8)
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: super_t(t0, t1, t2, t3, t4, t5, t6, t7, t8,
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static_cast<const null_type&>(null_type()))
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{}
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inline __host__ __device__
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tuple_of_iterator_references(typename access_traits<T0>::parameter_type t0,
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typename access_traits<T1>::parameter_type t1,
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typename access_traits<T2>::parameter_type t2,
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typename access_traits<T3>::parameter_type t3,
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typename access_traits<T4>::parameter_type t4,
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typename access_traits<T5>::parameter_type t5,
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typename access_traits<T6>::parameter_type t6,
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typename access_traits<T7>::parameter_type t7,
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typename access_traits<T8>::parameter_type t8,
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typename access_traits<T9>::parameter_type t9)
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: super_t(t0, t1, t2, t3, t4, t5, t6, t7, t8, t9)
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{}
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};
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} // end detail
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} // end thrust
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