thrust::uninitialized_allocate_unique_n

template<typename T, typename Allocator, typename Size>
std::unique_ptr<T[], uninitialized_array_allocator_delete<T, typename detail::allocator_traits<::cuda::std::remove_cvref_t<Allocator>>::template rebind_traits<T>::allocator_type>> thrust::uninitialized_allocate_unique_n(

Allocator const &alloc,

Size n,

)

Creates a std::unique_ptr holding storage for an array of objects of type T without constructing them, using alloc as the allocator.