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535 lines
20 KiB
535 lines
20 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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/*! \file vector_base.h
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* \brief Defines the interface to a base class for
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* host_vector & device_vector.
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*/
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#pragma once
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#include <thrust/iterator/detail/normal_iterator.h>
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#include <thrust/iterator/reverse_iterator.h>
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#include <thrust/iterator/iterator_traits.h>
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#include <thrust/detail/type_traits.h>
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#include <thrust/detail/contiguous_storage.h>
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#include <vector>
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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<typename T, typename Alloc>
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class vector_base
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{
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private:
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typedef thrust::detail::contiguous_storage<T,Alloc> storage_type;
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public:
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// typedefs
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typedef typename storage_type::value_type value_type;
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typedef typename storage_type::pointer pointer;
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typedef typename storage_type::const_pointer const_pointer;
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typedef typename storage_type::reference reference;
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typedef typename storage_type::const_reference const_reference;
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typedef typename storage_type::size_type size_type;
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typedef typename storage_type::difference_type difference_type;
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typedef typename storage_type::allocator_type allocator_type;
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typedef typename storage_type::iterator iterator;
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typedef typename storage_type::const_iterator const_iterator;
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typedef thrust::reverse_iterator<iterator> reverse_iterator;
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typedef thrust::reverse_iterator<const_iterator> const_reverse_iterator;
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/*! This constructor creates an empty vector_base.
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*/
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vector_base(void);
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/*! This constructor creates a vector_base with default-constructed
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* elements.
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* \param n The number of elements to create.
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*/
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explicit vector_base(size_type n);
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/*! This constructor creates a vector_base with copies
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* of an exemplar element.
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* \param n The number of elements to initially create.
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* \param value An element to copy.
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*/
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explicit vector_base(size_type n, const value_type &value);
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/*! Copy constructor copies from an exemplar vector_base.
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* \param v The vector_base to copy.
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*/
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vector_base(const vector_base &v);
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/*! assign operator makes a copy of an exemplar vector_base.
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* \param v The vector_base to copy.
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*/
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vector_base &operator=(const vector_base &v);
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/*! Copy constructor copies from an exemplar vector_base with different
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* type.
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* \param v The vector_base to copy.
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*/
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template<typename OtherT, typename OtherAlloc>
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vector_base(const vector_base<OtherT, OtherAlloc> &v);
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/*! assign operator makes a copy of an exemplar vector_base with different
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* type.
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* \param v The vector_base to copy.
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*/
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template<typename OtherT, typename OtherAlloc>
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vector_base &operator=(const vector_base<OtherT,OtherAlloc> &v);
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/*! Copy constructor copies from an exemplar std::vector.
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* \param v The std::vector to copy.
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* XXX TODO: Make this method redundant with a properly templatized constructor.
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* We would like to copy from a vector whose element type is anything
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* assignable to value_type.
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*/
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template<typename OtherT, typename OtherAlloc>
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vector_base(const std::vector<OtherT, OtherAlloc> &v);
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/*! assign operator makes a copy of an exemplar std::vector.
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* \param v The vector to copy.
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* XXX TODO: Templatize this assign on the type of the vector to copy from.
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* We would like to copy from a vector whose element type is anything
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* assignable to value_type.
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*/
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template<typename OtherT, typename OtherAlloc>
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vector_base &operator=(const std::vector<OtherT,OtherAlloc> &v);
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/*! This constructor builds a vector_base from a range.
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* \param first The beginning of the range.
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* \param last The end of the range.
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*/
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template<typename InputIterator>
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vector_base(InputIterator first, InputIterator last);
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/*! The destructor erases the elements.
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*/
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~vector_base(void);
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/*! \brief Resizes this vector_base to the specified number of elements.
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* \param new_size Number of elements this vector_base should contain.
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* \throw std::length_error If n exceeds max_size9).
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*
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* This method will resize this vector_base to the specified number of
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* elements. If the number is smaller than this vector_base's current
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* size this vector_base is truncated, otherwise this vector_base is
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* extended and new elements are default constructed.
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*/
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void resize(size_type new_size);
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/*! \brief Resizes this vector_base to the specified number of elements.
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* \param new_size Number of elements this vector_base should contain.
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* \param x Data with which new elements should be populated.
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* \throw std::length_error If n exceeds max_size().
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*
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* This method will resize this vector_base to the specified number of
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* elements. If the number is smaller than this vector_base's current
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* size this vector_base is truncated, otherwise this vector_base is
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* extended and new elements are populated with given data.
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*/
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void resize(size_type new_size, const value_type &x);
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/*! Returns the number of elements in this vector_base.
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*/
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size_type size(void) const;
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/*! Returns the size() of the largest possible vector_base.
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* \return The largest possible return value of size().
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*/
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size_type max_size(void) const;
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/*! \brief If n is less than or equal to capacity(), this call has no effect.
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* Otherwise, this method is a request for allocation of additional memory. If
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* the request is successful, then capacity() is greater than or equal to
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* n; otherwise, capacity() is unchanged. In either case, size() is unchanged.
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* \throw std::length_error If n exceeds max_size().
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*/
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void reserve(size_type n);
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/*! Returns the number of elements which have been reserved in this
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* vector_base.
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*/
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size_type capacity(void) const;
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/*! This method shrinks the capacity of this vector_base to exactly
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* fit its elements.
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*/
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void shrink_to_fit(void);
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/*! \brief Subscript access to the data contained in this vector_dev.
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* \param n The index of the element for which data should be accessed.
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* \return Read/write reference to data.
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*
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* This operator allows for easy, array-style, data access.
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* Note that data access with this operator is unchecked and
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* out_of_range lookups are not defined.
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*/
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reference operator[](size_type n);
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/*! \brief Subscript read access to the data contained in this vector_dev.
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* \param n The index of the element for which data should be accessed.
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* \return Read reference to data.
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*
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* This operator allows for easy, array-style, data access.
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* Note that data access with this operator is unchecked and
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* out_of_range lookups are not defined.
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*/
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const_reference operator[](size_type n) const;
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/*! This method returns an iterator pointing to the beginning of
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* this vector_base.
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* \return mStart
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*/
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iterator begin(void);
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/*! This method returns a const_iterator pointing to the beginning
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* of this vector_base.
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* \return mStart
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*/
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const_iterator begin(void) const;
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/*! This method returns a const_iterator pointing to the beginning
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* of this vector_base.
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* \return mStart
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*/
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const_iterator cbegin(void) const;
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/*! This method returns a reverse_iterator pointing to the beginning of
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* this vector_base's reversed sequence.
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* \return A reverse_iterator pointing to the beginning of this
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* vector_base's reversed sequence.
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*/
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reverse_iterator rbegin(void);
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/*! This method returns a const_reverse_iterator pointing to the beginning of
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* this vector_base's reversed sequence.
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* \return A const_reverse_iterator pointing to the beginning of this
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* vector_base's reversed sequence.
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*/
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const_reverse_iterator rbegin(void) const;
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/*! This method returns a const_reverse_iterator pointing to the beginning of
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* this vector_base's reversed sequence.
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* \return A const_reverse_iterator pointing to the beginning of this
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* vector_base's reversed sequence.
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*/
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const_reverse_iterator crbegin(void) const;
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/*! This method returns an iterator pointing to one element past the
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* last of this vector_base.
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* \return begin() + size().
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*/
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iterator end(void);
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/*! This method returns a const_iterator pointing to one element past the
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* last of this vector_base.
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* \return begin() + size().
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*/
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const_iterator end(void) const;
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/*! This method returns a const_iterator pointing to one element past the
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* last of this vector_base.
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* \return begin() + size().
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*/
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const_iterator cend(void) const;
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/*! This method returns a reverse_iterator pointing to one element past the
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* last of this vector_base's reversed sequence.
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* \return rbegin() + size().
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*/
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reverse_iterator rend(void);
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/*! This method returns a const_reverse_iterator pointing to one element past the
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* last of this vector_base's reversed sequence.
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* \return rbegin() + size().
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*/
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const_reverse_iterator rend(void) const;
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/*! This method returns a const_reverse_iterator pointing to one element past the
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* last of this vector_base's reversed sequence.
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* \return rbegin() + size().
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*/
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const_reverse_iterator crend(void) const;
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/*! This method returns a const_reference referring to the first element of this
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* vector_base.
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* \return The first element of this vector_base.
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*/
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const_reference front(void) const;
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/*! This method returns a reference pointing to the first element of this
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* vector_base.
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* \return The first element of this vector_base.
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*/
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reference front(void);
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/*! This method returns a const reference pointing to the last element of
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* this vector_base.
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* \return The last element of this vector_base.
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*/
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const_reference back(void) const;
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/*! This method returns a reference referring to the last element of
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* this vector_dev.
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* \return The last element of this vector_base.
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*/
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reference back(void);
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/*! This method returns a pointer to this vector_base's first element.
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* \return A pointer to the first element of this vector_base.
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*/
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pointer data(void);
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/*! This method returns a const_pointer to this vector_base's first element.
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* \return a const_pointer to the first element of this vector_base.
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*/
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const_pointer data(void) const;
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/*! This method resizes this vector_base to 0.
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*/
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void clear(void);
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/*! This method returns true iff size() == 0.
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* \return true if size() == 0; false, otherwise.
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*/
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bool empty(void) const;
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/*! This method appends the given element to the end of this vector_base.
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* \param x The element to append.
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*/
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void push_back(const value_type &x);
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/*! This method erases the last element of this vector_base, invalidating
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* all iterators and references to it.
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*/
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void pop_back(void);
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/*! This method swaps the contents of this vector_base with another vector_base.
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* \param v The vector_base with which to swap.
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*/
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void swap(vector_base &v);
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/*! This method removes the element at position pos.
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* \param pos The position of the element of interest.
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* \return An iterator pointing to the new location of the element that followed the element
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* at position pos.
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*/
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iterator erase(iterator pos);
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/*! This method removes the range of elements [first,last) from this vector_base.
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* \param first The beginning of the range of elements to remove.
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* \param last The end of the range of elements to remove.
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* \return An iterator pointing to the new location of the element that followed the last
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* element in the sequence [first,last).
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*/
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iterator erase(iterator first, iterator last);
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/*! This method inserts a single copy of a given exemplar value at the
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* specified position in this vector_base.
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* \param position The insertion position.
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* \param x The exemplar element to copy & insert.
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* \return An iterator pointing to the newly inserted element.
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*/
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iterator insert(iterator position, const T &x);
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/*! This method inserts a copy of an exemplar value to a range at the
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* specified position in this vector_base.
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* \param position The insertion position
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* \param n The number of insertions to perform.
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* \param x The value to replicate and insert.
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*/
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void insert(iterator position, size_type n, const T &x);
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/*! This method inserts a copy of an input range at the specified position
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* in this vector_base.
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* \param position The insertion position.
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* \param first The beginning of the range to copy.
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* \param last The end of the range to copy.
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*
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* \tparam InputIterator is a model of <a href="http://www.sgi.com/tech/stl/InputIterator.html>Input Iterator</a>,
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* and \p InputIterator's \c value_type is a model of <a href="http://www.sgi.com/tech/stl/Assignable.html">Assignable</a>.
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*/
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template<typename InputIterator>
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void insert(iterator position, InputIterator first, InputIterator last);
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||
|
|
/*! This version of \p assign replicates a given exemplar
|
||
|
|
* \p n times into this vector_base.
|
||
|
|
* \param n The number of times to copy \p x.
|
||
|
|
* \param x The exemplar element to replicate.
|
||
|
|
*/
|
||
|
|
void assign(size_type n, const T &x);
|
||
|
|
|
||
|
|
/*! This version of \p assign makes this vector_base a copy of a given input range.
|
||
|
|
* \param first The beginning of the range to copy.
|
||
|
|
* \param last The end of the range to copy.
|
||
|
|
*
|
||
|
|
* \tparam InputIterator is a model of <a href="http://www.sgi.com/tech/stl/InputIterator">Input Iterator</a>.
|
||
|
|
*/
|
||
|
|
template<typename InputIterator>
|
||
|
|
void assign(InputIterator first, InputIterator last);
|
||
|
|
|
||
|
|
/*! This method returns a copy of this vector's allocator.
|
||
|
|
* \return A copy of the alloctor used by this vector.
|
||
|
|
*/
|
||
|
|
allocator_type get_allocator(void) const;
|
||
|
|
|
||
|
|
protected:
|
||
|
|
// Our storage
|
||
|
|
storage_type m_storage;
|
||
|
|
|
||
|
|
// The size of this vector_base, in number of elements.
|
||
|
|
size_type m_size;
|
||
|
|
|
||
|
|
private:
|
||
|
|
// these methods resolve the ambiguity of the constructor template of form (Iterator, Iterator)
|
||
|
|
template<typename IteratorOrIntegralType>
|
||
|
|
void init_dispatch(IteratorOrIntegralType begin, IteratorOrIntegralType end, false_type);
|
||
|
|
|
||
|
|
template<typename IteratorOrIntegralType>
|
||
|
|
void init_dispatch(IteratorOrIntegralType n, IteratorOrIntegralType value, true_type);
|
||
|
|
|
||
|
|
template<typename InputIterator>
|
||
|
|
void range_init(InputIterator first, InputIterator last);
|
||
|
|
|
||
|
|
template<typename InputIterator>
|
||
|
|
void range_init(InputIterator first, InputIterator last, thrust::incrementable_traversal_tag);
|
||
|
|
|
||
|
|
template<typename ForwardIterator>
|
||
|
|
void range_init(ForwardIterator first, ForwardIterator last, thrust::random_access_traversal_tag);
|
||
|
|
|
||
|
|
void default_init(size_type n);
|
||
|
|
|
||
|
|
void fill_init(size_type n, const T &x);
|
||
|
|
|
||
|
|
// these methods resolve the ambiguity of the insert() template of form (iterator, InputIterator, InputIterator)
|
||
|
|
template<typename InputIteratorOrIntegralType>
|
||
|
|
void insert_dispatch(iterator position, InputIteratorOrIntegralType first, InputIteratorOrIntegralType last, false_type);
|
||
|
|
|
||
|
|
// these methods resolve the ambiguity of the insert() template of form (iterator, InputIterator, InputIterator)
|
||
|
|
template<typename InputIteratorOrIntegralType>
|
||
|
|
void insert_dispatch(iterator position, InputIteratorOrIntegralType n, InputIteratorOrIntegralType x, true_type);
|
||
|
|
|
||
|
|
// this method appends n default-constructed elements at the end
|
||
|
|
void append(size_type n);
|
||
|
|
|
||
|
|
// this method performs insertion from a fill value
|
||
|
|
void fill_insert(iterator position, size_type n, const T &x);
|
||
|
|
|
||
|
|
// this method performs insertion from a range
|
||
|
|
template<typename InputIterator>
|
||
|
|
void copy_insert(iterator position, InputIterator first, InputIterator last);
|
||
|
|
|
||
|
|
// these methods resolve the ambiguity of the assign() template of form (InputIterator, InputIterator)
|
||
|
|
template<typename InputIterator>
|
||
|
|
void assign_dispatch(InputIterator first, InputIterator last, false_type);
|
||
|
|
|
||
|
|
// these methods resolve the ambiguity of the assign() template of form (InputIterator, InputIterator)
|
||
|
|
template<typename Integral>
|
||
|
|
void assign_dispatch(Integral n, Integral x, true_type);
|
||
|
|
|
||
|
|
// this method performs assignment from a range
|
||
|
|
template<typename InputIterator>
|
||
|
|
void range_assign(InputIterator first, InputIterator last);
|
||
|
|
|
||
|
|
// this method performs assignment from a range of RandomAccessIterators
|
||
|
|
template<typename RandomAccessIterator>
|
||
|
|
void range_assign(RandomAccessIterator first, RandomAccessIterator last, thrust::random_access_traversal_tag);
|
||
|
|
|
||
|
|
// this method performs assignment from a range of InputIterators
|
||
|
|
template<typename InputIterator>
|
||
|
|
void range_assign(InputIterator first, InputIterator last, thrust::incrementable_traversal_tag);
|
||
|
|
|
||
|
|
// this method performs assignment from a fill value
|
||
|
|
void fill_assign(size_type n, const T &x);
|
||
|
|
|
||
|
|
// this method allocates new storage and construct copies the given range
|
||
|
|
template<typename ForwardIterator>
|
||
|
|
void allocate_and_copy(size_type requested_size,
|
||
|
|
ForwardIterator first, ForwardIterator last,
|
||
|
|
storage_type &new_storage);
|
||
|
|
}; // end vector_base
|
||
|
|
|
||
|
|
} // end detail
|
||
|
|
|
||
|
|
/*! This function assigns the contents of vector a to vector b and the
|
||
|
|
* contents of vector b to vector a.
|
||
|
|
*
|
||
|
|
* \param a The first vector of interest. After completion, the contents
|
||
|
|
* of b will be returned here.
|
||
|
|
* \param b The second vector of interest. After completion, the contents
|
||
|
|
* of a will be returned here.
|
||
|
|
*/
|
||
|
|
template<typename T, typename Alloc>
|
||
|
|
void swap(detail::vector_base<T,Alloc> &a,
|
||
|
|
detail::vector_base<T,Alloc> &b);
|
||
|
|
|
||
|
|
|
||
|
|
/*! This operator allows comparison between two vectors.
|
||
|
|
* \param lhs The first \p vector to compare.
|
||
|
|
* \param rhs The second \p vector to compare.
|
||
|
|
* \return \c true if and only if each corresponding element in either
|
||
|
|
* \p vector equals the other; \c false, otherwise.
|
||
|
|
*/
|
||
|
|
template<typename T1, typename Alloc1,
|
||
|
|
typename T2, typename Alloc2>
|
||
|
|
bool operator==(const detail::vector_base<T1,Alloc1>& lhs,
|
||
|
|
const detail::vector_base<T2,Alloc2>& rhs);
|
||
|
|
|
||
|
|
template<typename T1, typename Alloc1,
|
||
|
|
typename T2, typename Alloc2>
|
||
|
|
bool operator==(const detail::vector_base<T1,Alloc1>& lhs,
|
||
|
|
const std::vector<T2,Alloc2>& rhs);
|
||
|
|
|
||
|
|
template<typename T1, typename Alloc1,
|
||
|
|
typename T2, typename Alloc2>
|
||
|
|
bool operator==(const std::vector<T1,Alloc1>& lhs,
|
||
|
|
const detail::vector_base<T2,Alloc2>& rhs);
|
||
|
|
|
||
|
|
/*! This operator allows comparison between two vectors.
|
||
|
|
* \param lhs The first \p vector to compare.
|
||
|
|
* \param rhs The second \p vector to compare.
|
||
|
|
* \return \c false if and only if each corresponding element in either
|
||
|
|
* \p vector equals the other; \c true, otherwise.
|
||
|
|
*/
|
||
|
|
template<typename T1, typename Alloc1,
|
||
|
|
typename T2, typename Alloc2>
|
||
|
|
bool operator!=(const detail::vector_base<T1,Alloc1>& lhs,
|
||
|
|
const detail::vector_base<T2,Alloc2>& rhs);
|
||
|
|
|
||
|
|
template<typename T1, typename Alloc1,
|
||
|
|
typename T2, typename Alloc2>
|
||
|
|
bool operator!=(const detail::vector_base<T1,Alloc1>& lhs,
|
||
|
|
const std::vector<T2,Alloc2>& rhs);
|
||
|
|
|
||
|
|
template<typename T1, typename Alloc1,
|
||
|
|
typename T2, typename Alloc2>
|
||
|
|
bool operator!=(const std::vector<T1,Alloc1>& lhs,
|
||
|
|
const detail::vector_base<T2,Alloc2>& rhs);
|
||
|
|
|
||
|
|
} // end thrust
|
||
|
|
|
||
|
|
#include <thrust/detail/vector_base.inl>
|
||
|
|
|