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60 lines
1.6 KiB
60 lines
1.6 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 trivial_copy.h
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* \brief Device implementations for copying memory between host and device.
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*/
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#pragma once
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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/iterator/detail/is_trivial_iterator.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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namespace dispatch
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{
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// a trivial copy's iterator's value_types match,
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// the iterators themselves are normal_iterators
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// and the ToIterator's value_type has_trivial_assign
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template<typename FromIterator, typename ToIterator>
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struct is_trivial_copy :
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integral_constant<
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bool,
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is_same<
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typename thrust::iterator_value<FromIterator>::type,
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typename thrust::iterator_value<ToIterator>::type
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>::value
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&& is_trivial_iterator<FromIterator>::value
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&& is_trivial_iterator<ToIterator>::value
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&& has_trivial_assign<typename thrust::iterator_value<ToIterator>::type>::value
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> {};
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} // end namespace dispatch
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} // end namespace detail
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} // end namespace thrust
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