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130 lines
4.2 KiB
130 lines
4.2 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/iterator/detail/normal_iterator.h>
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#include <thrust/detail/execution_policy.h>
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#include <thrust/detail/allocator/allocator_traits.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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// XXX parameter T is redundant with parameter Alloc
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template<typename T, typename Alloc>
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class contiguous_storage
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{
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private:
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typedef thrust::detail::allocator_traits<Alloc> alloc_traits;
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public:
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typedef Alloc allocator_type;
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typedef T value_type;
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typedef typename alloc_traits::pointer pointer;
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typedef typename alloc_traits::const_pointer const_pointer;
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typedef typename alloc_traits::size_type size_type;
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typedef typename alloc_traits::difference_type difference_type;
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// XXX we should bring reference & const_reference into allocator_traits
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// at the moment, it's unclear how -- we have nothing analogous to
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// rebind_pointer for references
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// we either need to add reference_traits or extend the existing
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// pointer_traits to support wrapped references
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typedef typename Alloc::reference reference;
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typedef typename Alloc::const_reference const_reference;
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typedef thrust::detail::normal_iterator<pointer> iterator;
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typedef thrust::detail::normal_iterator<const_pointer> const_iterator;
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explicit contiguous_storage(const allocator_type &alloc = allocator_type());
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explicit contiguous_storage(size_type n, const allocator_type &alloc = allocator_type());
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~contiguous_storage(void);
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size_type size(void) const;
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size_type max_size(void) const;
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iterator begin(void);
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const_iterator begin(void) const;
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iterator end(void);
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const_iterator end(void) const;
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reference operator[](size_type n);
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const_reference operator[](size_type n) const;
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allocator_type get_allocator(void) const;
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// note that allocate does *not* automatically call deallocate
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void allocate(size_type n);
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void deallocate(void);
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void swap(contiguous_storage &x);
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void default_construct_n(iterator first, size_type n);
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void uninitialized_fill_n(iterator first, size_type n, const value_type &value);
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template<typename InputIterator>
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iterator uninitialized_copy(InputIterator first, InputIterator last, iterator result);
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template<typename System, typename InputIterator>
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iterator uninitialized_copy(thrust::execution_policy<System> &from_system,
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InputIterator first,
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InputIterator last,
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iterator result);
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template<typename InputIterator, typename Size>
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iterator uninitialized_copy_n(InputIterator first, Size n, iterator result);
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template<typename System, typename InputIterator, typename Size>
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iterator uninitialized_copy_n(thrust::execution_policy<System> &from_system,
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InputIterator first,
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Size n,
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iterator result);
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void destroy(iterator first, iterator last);
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private:
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// XXX we could inherit from this to take advantage of empty base class optimization
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allocator_type m_allocator;
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iterator m_begin;
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size_type m_size;
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// disallow assignment
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contiguous_storage &operator=(const contiguous_storage &x);
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}; // end contiguous_storage
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} // end detail
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template<typename T, typename Alloc> void swap(detail::contiguous_storage<T,Alloc> &lhs, detail::contiguous_storage<T,Alloc> &rhs);
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} // end thrust
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#include <thrust/detail/contiguous_storage.inl>
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