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119 lines
11 KiB
119 lines
11 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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#define __THRUST_DEFINE_HAS_MEMBER_FUNCTION(trait_name, member_function_name) \
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template<typename T, typename Signature> class trait_name; \
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\
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template<typename T, typename Result> \
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class trait_name<T, Result(void)> \
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{ \
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class yes { char m; }; \
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class no { yes m[2]; }; \
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struct base_mixin \
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{ \
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Result member_function_name(); \
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}; \
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struct base : public T, public base_mixin {}; \
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template <typename U, U t> class helper{}; \
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template <typename U> \
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static no deduce(U*, helper<Result (base_mixin::*)(), &U::member_function_name>* = 0); \
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static yes deduce(...); \
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public: \
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static const bool value = sizeof(yes) == sizeof(deduce(static_cast<base*>(0))); \
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typedef thrust::detail::integral_constant<bool,value> type; \
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}; \
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\
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template<typename T, typename Result, typename Arg> \
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class trait_name<T, Result(Arg)> \
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{ \
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class yes { char m; }; \
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class no { yes m[2]; }; \
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struct base_mixin \
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{ \
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Result member_function_name(Arg); \
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}; \
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struct base : public T, public base_mixin {}; \
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template <typename U, U t> class helper{}; \
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template <typename U> \
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static no deduce(U*, helper<Result (base_mixin::*)(Arg), &U::member_function_name>* = 0); \
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static yes deduce(...); \
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public: \
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static const bool value = sizeof(yes) == sizeof(deduce(static_cast<base*>(0))); \
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typedef thrust::detail::integral_constant<bool,value> type; \
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}; \
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\
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template<typename T, typename Result, typename Arg1, typename Arg2> \
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class trait_name<T, Result(Arg1,Arg2)> \
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{ \
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class yes { char m; }; \
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class no { yes m[2]; }; \
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struct base_mixin \
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{ \
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Result member_function_name(Arg1,Arg2); \
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}; \
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struct base : public T, public base_mixin {}; \
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template <typename U, U t> class helper{}; \
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template <typename U> \
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static no deduce(U*, helper<Result (base_mixin::*)(Arg1,Arg2), &U::member_function_name>* = 0); \
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static yes deduce(...); \
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public: \
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static const bool value = sizeof(yes) == sizeof(deduce(static_cast<base*>(0))); \
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typedef thrust::detail::integral_constant<bool,value> type; \
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}; \
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\
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template<typename T, typename Result, typename Arg1, typename Arg2, typename Arg3> \
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class trait_name<T, Result(Arg1,Arg2,Arg3)> \
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{ \
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class yes { char m; }; \
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class no { yes m[2]; }; \
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struct base_mixin \
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{ \
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Result member_function_name(Arg1,Arg2,Arg3); \
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}; \
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struct base : public T, public base_mixin {}; \
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template <typename U, U t> class helper{}; \
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template <typename U> \
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static no deduce(U*, helper<Result (base_mixin::*)(Arg1,Arg2,Arg3), &U::member_function_name>* = 0); \
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static yes deduce(...); \
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public: \
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static const bool value = sizeof(yes) == sizeof(deduce(static_cast<base*>(0))); \
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typedef thrust::detail::integral_constant<bool,value> type; \
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}; \
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\
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template<typename T, typename Result, typename Arg1, typename Arg2, typename Arg3, typename Arg4> \
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class trait_name<T, Result(Arg1,Arg2,Arg3,Arg4)> \
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{ \
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class yes { char m; }; \
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class no { yes m[2]; }; \
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struct base_mixin \
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{ \
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Result member_function_name(Arg1,Arg2,Arg3,Arg4); \
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}; \
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struct base : public T, public base_mixin {}; \
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template <typename U, U t> class helper{}; \
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template <typename U> \
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static no deduce(U*, helper<Result (base_mixin::*)(Arg1,Arg2,Arg3,Arg4), &U::member_function_name>* = 0); \
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static yes deduce(...); \
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public: \
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static const bool value = sizeof(yes) == sizeof(deduce(static_cast<base*>(0))); \
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typedef thrust::detail::integral_constant<bool,value> type; \
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};
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