reshape.hpp
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1 /*
2  * SPDX-FileCopyrightText: Copyright (c) 2020-2026, NVIDIA CORPORATION & AFFILIATES. All rights reserved.
3  * SPDX-License-Identifier: Apache-2.0
4  */
5 
6 #pragma once
7 
8 #include <cudf/column/column.hpp>
10 #include <cudf/types.hpp>
11 #include <cudf/utilities/export.hpp>
13 #include <cudf/utilities/span.hpp>
14 
15 #include <cuda/functional>
16 
17 #include <memory>
18 
24 namespace CUDF_EXPORT cudf {
48 std::unique_ptr<column> interleave_columns(
49  table_view const& input,
52 
72 std::unique_ptr<table> tile(
73  table_view const& input,
77 
81 enum class flip_endianness : bool { NO, YES };
82 
99 std::unique_ptr<column> byte_cast(
100  column_view const& input_column,
101  flip_endianness endian_configuration,
104 
123 void table_to_array(table_view const& input,
126  // end of group
128 
129 } // namespace CUDF_EXPORT cudf
A non-owning, immutable view of device data as a column of elements, some of which may be null as ind...
A set of cudf::column_view's of the same size.
Definition: table_view.hpp:206
Class definition for cudf::column.
std::unique_ptr< table > tile(table_view const &input, size_type count, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Repeats the rows from input table count times to form a new table.
flip_endianness
Configures whether byte casting flips endianness.
Definition: reshape.hpp:81
std::unique_ptr< column > interleave_columns(table_view const &input, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Interleave columns of a table into a single column.
std::unique_ptr< column > byte_cast(column_view const &input_column, flip_endianness endian_configuration, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Converts a column's elements to lists of bytes.
void table_to_array(table_view const &input, device_span< cuda::std::byte > output, rmm::cuda_stream_view stream=cudf::get_default_stream())
Copies a table into a contiguous column-major device array.
rmm::cuda_stream_view const get_default_stream()
Get the current default stream.
rmm::device_async_resource_ref get_current_device_resource_ref()
Get the current device memory resource reference.
cuda::mr::resource_ref< cuda::mr::device_accessible > device_async_resource_ref
std::unique_ptr< column > count(strings_column_view const &input, string_scalar const &target, rmm::cuda_stream_view stream=cudf::get_default_stream(), rmm::device_async_resource_ref mr=cudf::get_current_device_resource_ref())
Returns the number of times the given target string matches in each string.
cuda::std::span< T, Extent > device_span
Device span is an alias of cuda::std::span.
Definition: span.hpp:296
int32_t size_type
Row index type for columns and tables.
Definition: types.hpp:76
APIs for getting and setting the current device memory resource.
cuDF interfaces
Definition: host_udf.hpp:26
APIs for spans.
Class definitions for (mutable)_table_view
Type declarations for libcudf.