/*
 *  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>

#if defined(_CCCL_IMPLICIT_SYSTEM_HEADER_GCC)
#  pragma GCC system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_CLANG)
#  pragma clang system_header
#elif defined(_CCCL_IMPLICIT_SYSTEM_HEADER_MSVC)
#  pragma system_header
#endif // no system header
#include <thrust/detail/raw_pointer_cast.h>
#include <thrust/system/detail/sequential/execution_policy.h>

#if _THRUST_HAS_DEVICE_SYSTEM_STD
#  include _THRUST_STD_INCLUDE(utility)
#endif

THRUST_NAMESPACE_BEGIN
namespace system
{
namespace detail
{
namespace sequential
{

template <typename DerivedPolicy, typename Pointer1, typename Pointer2>
THRUST_HOST_DEVICE void iter_swap(sequential::execution_policy<DerivedPolicy>&, Pointer1 a, Pointer2 b)
{
#if _THRUST_HAS_DEVICE_SYSTEM_STD
  using _THRUST_STD::swap;
#else
  using thrust::swap;
#endif
  swap(*thrust::raw_pointer_cast(a), *thrust::raw_pointer_cast(b));
} // end iter_swap()

} // namespace sequential
} // namespace detail
} // namespace system
THRUST_NAMESPACE_END
