199 lines
7.3 KiB
C++
199 lines
7.3 KiB
C++
/*
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* Copyright 2015-2020 Michele "King_DuckZ" Santullo
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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 "implem_vec_common.hpp"
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#include "sequence_bt.hpp"
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#include <type_traits>
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#include <utility>
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#include <functional>
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#if defined VWR_OUTER_NAMESPACE
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namespace VWR_OUTER_NAMESPACE {
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#endif
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namespace vwr {
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namespace implem {
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template <typename V>
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Vec<V>& assign_same_type ( Vec<V>& parLeft, const Vec<V>& parRight );
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template <typename V> struct is_vec {
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enum { value = false };
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};
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template <typename V> struct is_vec<Vec<V>> {
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typedef V vector_type;
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enum { value = true };
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};
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template <typename V> struct get_wrapped_ifn {
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typedef V type;
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};
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template <typename T> struct get_wrapped_ifn<Vec<T>> {
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typedef T type;
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};
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template <typename V1, typename V2>
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struct directly_convertible {
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enum {
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value =
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not HasGetAtMethod<VectorWrapperInfo<typename get_wrapped_ifn<V1>::type>>::value and
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not HasGetAtMethod<VectorWrapperInfo<typename get_wrapped_ifn<V2>::type>>::value
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};
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};
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template <typename V, bool IsCopyConstr=std::is_copy_constructible<V>::value>
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class VecBaseStorage {
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protected:
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constexpr static const bool IsWrappedCopyConstructible = IsCopyConstr;
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typedef V vector_type;
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VecBaseStorage() = default;
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VecBaseStorage (const VecBaseStorage& parOther) = delete;
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VecBaseStorage (const vector_type& parInit) : m_wrapped(parInit) {}
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vector_type& data ( void ) { return m_wrapped; }
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const vector_type& data ( void ) const { return m_wrapped; }
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private:
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vector_type m_wrapped;
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};
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template <typename V>
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class VecBaseStorage<V, false> {
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protected:
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constexpr static const bool IsWrappedCopyConstructible = false;
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typedef V vector_type;
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VecBaseStorage() = default;
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VecBaseStorage (const VecBaseStorage&) = delete;
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VecBaseStorage (const vector_type&) { }
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vector_type& data ( void ) { return m_wrapped; }
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const vector_type& data ( void ) const { return m_wrapped; }
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private:
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vector_type m_wrapped;
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};
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template <typename V>
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class VecBase : private VecBaseStorage<V> {
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friend Vec<V>& assign_same_type<V> ( Vec<V>& parLeft, const Vec<V>& parRight );
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public:
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typedef typename VecBaseStorage<V>::vector_type vector_type;
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typedef typename VectorWrapperInfo<V>::scalar_type scalar_type;
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using VecBaseStorage<V>::data;
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enum {
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dimensions = VectorWrapperInfo<V>::dimensions
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};
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VecBase ( void ) = default;
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template <typename T>
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explicit VecBase ( const T& parInit, typename std::enable_if<std::is_same<T, scalar_type>::value and not std::is_same<scalar_type, vector_type>::value, bool>::type=false );
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explicit VecBase ( const vector_type& parInit );
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VecBase ( const VecBase& parOther );
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template <typename... Args>
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VecBase ( scalar_type parX, scalar_type parY, Args... parArgs );
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~VecBase ( void ) = default;
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scalar_type& operator[] ( size_type parIndex );
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const scalar_type& operator[] ( size_type parIndex ) const;
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operator vector_type&() {return this->data();}
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operator const vector_type&() const {return this->data();}
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template <typename V2>
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const typename std::enable_if<is_vec<V2>::value and directly_convertible<V, V2>::value, V2>::type& cast ( void ) const;
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template <typename V2>
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typename std::enable_if<is_vec<V2>::value and directly_convertible<V, V2>::value, V2>::type& cast ( void );
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template <typename V2>
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const typename std::enable_if<is_vec<V2>::value and not directly_convertible<V, V2>::value, V2>::type& cast ( void ) const;
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template <typename V2>
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typename std::enable_if<is_vec<V2>::value and not directly_convertible<V, V2>::value, V2>::type& cast ( void );
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template <typename V2> VecBase& operator+= ( const VecBase<V2>& parOther );
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template <typename V2> VecBase& operator-= ( const VecBase<V2>& parOther );
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template <typename V2> VecBase& operator*= ( const VecBase<V2>& parOther );
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template <typename V2> VecBase& operator/= ( const VecBase<V2>& parOther );
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VecBase& operator+= ( const scalar_type& parOther );
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VecBase& operator-= ( const scalar_type& parOther );
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VecBase& operator*= ( const scalar_type& parOther );
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VecBase& operator/= ( const scalar_type& parOther );
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private:
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template <size_type... I, typename... Args>
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void assign_values (const bt::number_seq<size_type, I...>&, Args... parArgs);
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template <typename Op, typename V2, size_type... I>
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void assign_values_op (Op parOp, const bt::number_seq<size_type, I...>& parSeq, const VecBase<V2>& parOther);
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template <typename Op, size_type... I>
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void assign_values_op_scalar (Op parOp, const bt::number_seq<size_type, I...>& parSeq, const scalar_type& parOther);
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};
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template <
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typename T,
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typename U,
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size_type S=(
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static_cast<int>(VectorWrapperInfo<T>::dimensions) < static_cast<int>(VectorWrapperInfo<U>::dimensions) ?
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static_cast<int>(VectorWrapperInfo<T>::dimensions)
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:
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static_cast<int>(VectorWrapperInfo<U>::dimensions)
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)
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> struct have_compat_offsets;
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template <typename T, typename U> struct have_compat_offsets<T, U, 1> {
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enum {
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value = true
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};
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};
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template <typename T, typename U> struct have_compat_offsets<T, U, 2> {
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enum {
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value =
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VectorWrapperInfo<T>::offset_x - min_offset<T>::value == VectorWrapperInfo<U>::offset_x - min_offset<U>::value and
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VectorWrapperInfo<T>::offset_y - min_offset<T>::value == VectorWrapperInfo<U>::offset_y - min_offset<U>::value
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};
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};
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template <typename T, typename U> struct have_compat_offsets<T, U, 3> {
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enum {
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value =
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VectorWrapperInfo<T>::offset_x - min_offset<T>::value == VectorWrapperInfo<U>::offset_x - min_offset<U>::value and
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VectorWrapperInfo<T>::offset_y - min_offset<T>::value == VectorWrapperInfo<U>::offset_y - min_offset<U>::value and
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VectorWrapperInfo<T>::offset_z - min_offset<T>::value == VectorWrapperInfo<U>::offset_z - min_offset<U>::value
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};
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};
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template <typename T, typename U> struct have_compat_offsets<T, U, 4> {
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enum {
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value =
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VectorWrapperInfo<T>::offset_x - min_offset<T>::value == VectorWrapperInfo<U>::offset_x - min_offset<U>::value and
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VectorWrapperInfo<T>::offset_y - min_offset<T>::value == VectorWrapperInfo<U>::offset_y - min_offset<U>::value and
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VectorWrapperInfo<T>::offset_z - min_offset<T>::value == VectorWrapperInfo<U>::offset_z - min_offset<U>::value and
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VectorWrapperInfo<T>::offset_w - min_offset<T>::value == VectorWrapperInfo<U>::offset_w - min_offset<U>::value
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};
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};
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template <typename T, typename U>
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struct have_compat_layout {
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enum {
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value =
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HasOffsetXEnum<VectorWrapperInfo<T>>::value and
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HasOffsetXEnum<VectorWrapperInfo<U>>::value and
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have_compat_offsets<T, U>::value
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};
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};
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} //namespace implem
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template <typename V> struct is_castable_to { };
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} //namespace vwr
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#if defined VWR_OUTER_NAMESPACE
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} //namespace VWR_OUTER_NAMESPACE
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#endif
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#include "implem_vec_base.inl"
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