cudf/replace.hpp

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/*
 * Copyright (c) 2018-2024, 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 <cudf/types.hpp>
#include <cudf/utilities/default_stream.hpp>
#include <cudf/utilities/export.hpp>
 
#include <rmm/mr/device/per_device_resource.hpp>
#include <rmm/resource_ref.hpp>
 
#include <memory>
 
namespace CUDF_EXPORT cudf {
enum class replace_policy : bool { PRECEDING, FOLLOWING };
 
std::unique_ptr<column> replace_nulls(
  column_view const& input,
  column_view const& replacement,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<column> replace_nulls(
  column_view const& input,
  scalar const& replacement,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<column> replace_nulls(
  column_view const& input,
  replace_policy const& replace_policy,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<column> replace_nans(
  column_view const& input,
  column_view const& replacement,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<column> replace_nans(
  column_view const& input,
  scalar const& replacement,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<column> find_and_replace_all(
  column_view const& input_col,
  column_view const& values_to_replace,
  column_view const& replacement_values,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<column> clamp(
  column_view const& input,
  scalar const& lo,
  scalar const& lo_replace,
  scalar const& hi,
  scalar const& hi_replace,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<column> clamp(
  column_view const& input,
  scalar const& lo,
  scalar const& hi,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = rmm::mr::get_current_device_resource());
 
std::unique_ptr<column> normalize_nans_and_zeros(
  column_view const& input,
  rmm::cuda_stream_view stream      = cudf::get_default_stream(),
  rmm::device_async_resource_ref mr = rmm::mr::get_current_device_resource());
 
void normalize_nans_and_zeros(mutable_column_view& in_out,
                              rmm::cuda_stream_view stream = cudf::get_default_stream());
  // end of group
}  // namespace CUDF_EXPORT cudf