slice.hpp
Go to the documentation of this file.
1 /*
2  * Copyright (c) 2019-2023, NVIDIA CORPORATION.
3  *
4  * Licensed under the Apache License, Version 2.0 (the "License");
5  * you may not use this file except in compliance with the License.
6  * You may obtain a copy of the License at
7  *
8  * http://www.apache.org/licenses/LICENSE-2.0
9  *
10  * Unless required by applicable law or agreed to in writing, software
11  * distributed under the License is distributed on an "AS IS" BASIS,
12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13  * See the License for the specific language governing permissions and
14  * limitations under the License.
15  */
16 #pragma once
17 
18 #include <cudf/column/column.hpp>
19 #include <cudf/scalar/scalar.hpp>
21 
22 #include <rmm/mr/device/per_device_resource.hpp>
23 
24 namespace cudf {
25 namespace strings {
61 std::unique_ptr<column> slice_strings(
62  strings_column_view const& input,
66  rmm::cuda_stream_view stream = cudf::get_default_stream(),
67  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
68 
107 std::unique_ptr<column> slice_strings(
108  strings_column_view const& input,
109  column_view const& starts,
110  column_view const& stops,
111  rmm::cuda_stream_view stream = cudf::get_default_stream(),
112  rmm::mr::device_memory_resource* mr = rmm::mr::get_current_device_resource());
113  // end of doxygen group
115 } // namespace strings
116 } // namespace cudf
A non-owning, immutable view of device data as a column of elements, some of which may be null as ind...
An owning class to represent a numerical value in device memory.
Definition: scalar.hpp:243
Given a column-view of strings type, an instance of this class provides a wrapper on this compound co...
Class definition for cudf::column.
rmm::cuda_stream_view const get_default_stream()
Get the current default stream.
std::unique_ptr< column > slice_strings(strings_column_view const &input, numeric_scalar< size_type > const &start=numeric_scalar< size_type >(0, false), numeric_scalar< size_type > const &stop=numeric_scalar< size_type >(0, false), numeric_scalar< size_type > const &step=numeric_scalar< size_type >(1), rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::mr::device_memory_resource *mr=rmm::mr::get_current_device_resource())
Returns a new strings column that contains substrings of the strings in the provided column.
cuDF interfaces
Definition: aggregation.hpp:34
Class definitions for cudf::scalar.
Class definition for cudf::strings_column_view.