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/*
* 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.
*/
#pragma once
#include <thrust/detail/config.h>
#include <thrust/detail/functional/actor.h>
#include <thrust/detail/functional/composite.h>
#include <thrust/detail/functional/operators/operator_adaptors.h>
#include <thrust/functional.h>
THRUST_NAMESPACE_BEGIN
// XXX WAR circular inclusion with this forward declaration
template<typename,typename,typename> struct binary_function;
namespace detail
{
namespace functional
{
// XXX WAR circular inclusion with this forward declaration
template<typename> struct as_actor;
// there's no standard assign functional, so roll an ad hoc one here
struct assign
{
using is_transparent = void;
__thrust_exec_check_disable__
template <typename T1, typename T2>
__host__ __device__
constexpr auto operator()(T1&& t1, T2&& t2) const
noexcept(noexcept(THRUST_FWD(t1) = THRUST_FWD(t2)))
THRUST_TRAILING_RETURN(decltype(THRUST_FWD(t1) = THRUST_FWD(t2)))
{
return THRUST_FWD(t1) = THRUST_FWD(t2);
}
};
template<typename Eval, typename T>
struct assign_result
{
typedef actor<
composite<
transparent_binary_operator<assign>,
actor<Eval>,
typename as_actor<T>::type
>
> type;
}; // end assign_result
template<typename Eval, typename T>
__host__ __device__
typename assign_result<Eval,T>::type
do_assign(const actor<Eval> &_1, const T &_2)
{
return compose(transparent_binary_operator<assign>(),
_1,
as_actor<T>::convert(_2));
} // end do_assign()
} // end functional
} // end detail
THRUST_NAMESPACE_END
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