unique_count.hpp

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/*
 * SPDX-FileCopyrightText: Copyright (c) 2026, NVIDIA CORPORATION.
 * SPDX-License-Identifier: Apache-2.0
 */
 
#pragma once
 
#include <cudf/column/column_view.hpp>
#include <cudf/table/table_view.hpp>
#include <cudf/types.hpp>
#include <cudf/utilities/default_stream.hpp>
#include <cudf/utilities/export.hpp>
 
#include <rmm/cuda_stream_view.hpp>
 
namespace CUDF_EXPORT cudf {
 
cudf::size_type unique_count(column_view const& input,
                             null_policy null_handling,
                             nan_policy nan_handling,
                             rmm::cuda_stream_view stream = cudf::get_default_stream());
 
cudf::size_type unique_count(table_view const& input,
                             null_equality nulls_equal    = null_equality::EQUAL,
                             rmm::cuda_stream_view stream = cudf::get_default_stream());
 
}  // namespace CUDF_EXPORT cudf