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97 lines
3.3 KiB
97 lines
3.3 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/detail/type_traits.h>
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#include <thrust/detail/type_traits/has_nested_type.h>
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namespace thrust
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{
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// forward definitions for is_commutative
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template <typename T> struct plus;
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template <typename T> struct multiplies;
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template <typename T> struct minimum;
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template <typename T> struct maximum;
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template <typename T> struct logical_or;
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template <typename T> struct logical_and;
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template <typename T> struct bit_or;
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template <typename T> struct bit_and;
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template <typename T> struct bit_xor;
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namespace detail
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{
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// some metafunctions which check for the nested types of the adaptable functions
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__THRUST_DEFINE_HAS_NESTED_TYPE(has_result_type, result_type)
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__THRUST_DEFINE_HAS_NESTED_TYPE(has_argument_type, argument_type)
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__THRUST_DEFINE_HAS_NESTED_TYPE(has_first_argument_type, first_argument_type)
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__THRUST_DEFINE_HAS_NESTED_TYPE(has_second_argument_type, second_argument_type)
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template<typename AdaptableBinaryFunction>
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struct result_type
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{
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typedef typename AdaptableBinaryFunction::result_type type;
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};
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template<typename T>
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struct is_adaptable_unary_function
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: thrust::detail::and_<
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has_result_type<T>,
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has_argument_type<T>
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>
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{};
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template<typename T>
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struct is_adaptable_binary_function
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: thrust::detail::and_<
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has_result_type<T>,
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thrust::detail::and_<
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has_first_argument_type<T>,
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has_second_argument_type<T>
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>
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>
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{};
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template<typename BinaryFunction>
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struct is_commutative
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: public thrust::detail::false_type
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{};
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template<typename T> struct is_commutative< typename thrust::plus<T> > : public thrust::detail::is_arithmetic<T> {};
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template<typename T> struct is_commutative< typename thrust::multiplies<T> > : public thrust::detail::is_arithmetic<T> {};
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template<typename T> struct is_commutative< typename thrust::minimum<T> > : public thrust::detail::is_arithmetic<T> {};
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template<typename T> struct is_commutative< typename thrust::maximum<T> > : public thrust::detail::is_arithmetic<T> {};
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template<typename T> struct is_commutative< typename thrust::logical_or<T> > : public thrust::detail::is_arithmetic<T> {};
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template<typename T> struct is_commutative< typename thrust::logical_and<T> > : public thrust::detail::is_arithmetic<T> {};
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template<typename T> struct is_commutative< typename thrust::bit_or<T> > : public thrust::detail::is_arithmetic<T> {};
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template<typename T> struct is_commutative< typename thrust::bit_and<T> > : public thrust::detail::is_arithmetic<T> {};
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template<typename T> struct is_commutative< typename thrust::bit_xor<T> > : public thrust::detail::is_arithmetic<T> {};
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} // end namespace detail
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} // end namespace thrust
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