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42 lines
1.2 KiB
42 lines
1.2 KiB
/* |
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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/detail/type_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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// since both arguments are known to be specializations of iterator_facade, |
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// it's legal to access IteratorFacade2::difference_type |
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template<typename IteratorFacade1, typename IteratorFacade2> |
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struct distance_from_result |
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: eval_if< |
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is_convertible<IteratorFacade2,IteratorFacade1>::value, |
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identity_<typename IteratorFacade1::difference_type>, |
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identity_<typename IteratorFacade2::difference_type> |
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> |
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{}; |
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} // end detail |
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} // end thrust |
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