--- /dev/null
+/*
+ * Copyright 2008-2013 NVIDIA Corporation
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+// Portions of this code are derived from
+//
+// Manjunath Kudlur's Carbon library
+//
+// and
+//
+// Based on Boost.Phoenix v1.2
+// Copyright (c) 2001-2002 Joel de Guzman
+
+#pragma once
+
+#include <thrust/detail/config.h>
+#include <thrust/tuple.h>
+#include <thrust/detail/functional/value.h>
+#include <thrust/detail/functional/composite.h>
+#include <thrust/detail/functional/operators/assignment_operator.h>
+#include <thrust/detail/type_traits/result_of.h>
+
+namespace thrust
+{
+namespace detail
+{
+namespace functional
+{
+
+template<typename Action, typename Env>
+ struct apply_actor
+{
+ typedef typename Action::template result<Env>::type type;
+};
+
+template<typename Eval>
+ struct actor
+ : Eval
+{
+ typedef Eval eval_type;
+
+ __host__ __device__
+ actor(void);
+
+ __host__ __device__
+ actor(const Eval &base);
+
+ __host__ __device__
+ typename apply_actor<eval_type, thrust::null_type >::type
+ operator()(void) const;
+
+ template<typename T0>
+ __host__ __device__
+ typename apply_actor<eval_type, thrust::tuple<T0&> >::type
+ operator()(T0 &_0) const;
+
+ template<typename T0, typename T1>
+ __host__ __device__
+ typename apply_actor<eval_type, thrust::tuple<T0&,T1&> >::type
+ operator()(T0 &_0, T1 &_1) const;
+
+ template<typename T0, typename T1, typename T2>
+ __host__ __device__
+ typename apply_actor<eval_type, thrust::tuple<T0&,T1&,T2&> >::type
+ operator()(T0 &_0, T1 &_1, T2 &_2) const;
+
+ template<typename T0, typename T1, typename T2, typename T3>
+ __host__ __device__
+ typename apply_actor<eval_type, thrust::tuple<T0&,T1&,T2&,T3&> >::type
+ operator()(T0 &_0, T1 &_1, T2 &_2, T3 &_3) const;
+
+ template<typename T0, typename T1, typename T2, typename T3, typename T4>
+ __host__ __device__
+ typename apply_actor<eval_type, thrust::tuple<T0&,T1&,T2&,T3&,T4&> >::type
+ operator()(T0 &_0, T1 &_1, T2 &_2, T3 &_3, T4 &_4) const;
+
+ template<typename T0, typename T1, typename T2, typename T3, typename T4, typename T5>
+ __host__ __device__
+ typename apply_actor<eval_type, thrust::tuple<T0&,T1&,T2&,T3&,T4&,T5&> >::type
+ operator()(T0 &_0, T1 &_1, T2 &_2, T3 &_3, T4 &_4, T5 &_5) const;
+
+ template<typename T0, typename T1, typename T2, typename T3, typename T4, typename T5, typename T6>
+ __host__ __device__
+ typename apply_actor<eval_type, thrust::tuple<T0&,T1&,T2&,T3&,T4&,T5&,T6&> >::type
+ operator()(T0 &_0, T1 &_1, T2 &_2, T3 &_3, T4 &_4, T5 &_5, T6 &_6) const;
+
+ template<typename T0, typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7>
+ __host__ __device__
+ typename apply_actor<eval_type, thrust::tuple<T0&,T1&,T2&,T3&,T4&,T5&,T6&,T7&> >::type
+ operator()(T0 &_0, T1 &_1, T2 &_2, T3 &_3, T4 &_4, T5 &_5, T6 &_6, T7 &_7) const;
+
+ template<typename T0, typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8>
+ __host__ __device__
+ typename apply_actor<eval_type, thrust::tuple<T0&,T1&,T2&,T3&,T4&,T5&,T6&,T7&,T8&> >::type
+ operator()(T0 &_0, T1 &_1, T2 &_2, T3 &_3, T4 &_4, T5 &_5, T6 &_6, T7 &_7, T8 &_8) const;
+
+ template<typename T0, typename T1, typename T2, typename T3, typename T4, typename T5, typename T6, typename T7, typename T8, typename T9>
+ __host__ __device__
+ typename apply_actor<eval_type, thrust::tuple<T0&,T1&,T2&,T3&,T4&,T5&,T6&,T7&,T8&,T9&> >::type
+ operator()(T0 &_0, T1 &_1, T2 &_2, T3 &_3, T4 &_4, T5 &_5, T6 &_6, T7 &_7, T8 &_8, T9 &_9) const;
+
+ template<typename T>
+ __host__ __device__
+ typename assign_result<Eval,T>::type
+ operator=(const T &_1) const;
+}; // end actor
+
+// in general, as_actor should turn things into values
+template<typename T>
+ struct as_actor
+{
+ typedef value<T> type;
+
+ static inline __host__ __device__ type convert(const T &x)
+ {
+ return val(x);
+ } // end convert()
+}; // end as_actor
+
+// specialization for things which are already actors
+template<typename Eval>
+ struct as_actor<actor<Eval> >
+{
+ typedef actor<Eval> type;
+
+ static inline __host__ __device__ const type &convert(const actor<Eval> &x)
+ {
+ return x;
+ } // end convert()
+}; // end as_actor
+
+template<typename T>
+ typename as_actor<T>::type
+ __host__ __device__
+ make_actor(const T &x)
+{
+ return as_actor<T>::convert(x);
+} // end make_actor()
+
+} // end functional
+
+// provide specializations for result_of for nullary, unary, and binary invocations of actor
+template<typename Eval>
+ struct result_of<
+ thrust::detail::functional::actor<Eval>()
+ >
+{
+ typedef typename thrust::detail::functional::apply_actor<
+ thrust::detail::functional::actor<Eval>,
+ thrust::null_type
+ >::type type;
+}; // end result_of
+
+template<typename Eval, typename Arg1>
+ struct result_of<
+ thrust::detail::functional::actor<Eval>(Arg1)
+ >
+{
+ typedef typename thrust::detail::functional::apply_actor<
+ thrust::detail::functional::actor<Eval>,
+ thrust::tuple<Arg1>
+ >::type type;
+}; // end result_of
+
+template<typename Eval, typename Arg1, typename Arg2>
+ struct result_of<
+ thrust::detail::functional::actor<Eval>(Arg1,Arg2)
+ >
+{
+ typedef typename thrust::detail::functional::apply_actor<
+ thrust::detail::functional::actor<Eval>,
+ thrust::tuple<Arg1,Arg2>
+ >::type type;
+}; // end result_of
+
+} // end detail
+} // end thrust
+
+#include <thrust/detail/functional/actor.inl>
+
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