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32 lines
1.1 KiB
32 lines
1.1 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/type_traits.h> |
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#define __THRUST_DEFINE_HAS_NESTED_TYPE(trait_name, nested_type_name) \ |
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template<typename T> \ |
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struct trait_name \ |
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{ \ |
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typedef char yes_type; \ |
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typedef int no_type; \ |
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template<typename S> static yes_type test(typename S::nested_type_name *); \ |
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template<typename S> static no_type test(...); \ |
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static bool const value = sizeof(test<T>(0)) == sizeof(yes_type);\ |
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typedef thrust::detail::integral_constant<bool, value> type;\ |
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}; |
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