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#pragma once

#include <cub/config.cuh>

#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 <cuda/std/type_traits>

CUB_NAMESPACE_BEGIN


namespace detail
{

#if defined(_NVHPC_CUDA)
template <typename T, typename U>
__host__ __device__ void uninitialized_copy(T *ptr, U &&val)
{
  // NVBug 3384810
  new (ptr) T(::cuda::std::forward<U>(val));
}
#else
template <typename T,
          typename U,
          typename ::cuda::std::enable_if<
            ::cuda::std::is_trivially_copyable<T>::value,
            int
          >::type = 0>
__host__ __device__ void uninitialized_copy(T *ptr, U &&val)
{
  *ptr = ::cuda::std::forward<U>(val);
}

template <typename T,
         typename U,
         typename ::cuda::std::enable_if<
           !::cuda::std::is_trivially_copyable<T>::value,
           int
         >::type = 0>
__host__ __device__ void uninitialized_copy(T *ptr, U &&val)
{
  new (ptr) T(::cuda::std::forward<U>(val));
}
#endif

} // namespace detail


CUB_NAMESPACE_END

