arrow/util/union_util.h

0001 // Licensed to the Apache Software Foundation (ASF) under one
0002 // or more contributor license agreements.  See the NOTICE file
0003 // distributed with this work for additional information
0004 // regarding copyright ownership.  The ASF licenses this file
0005 // to you under the Apache License, Version 2.0 (the
0006 // "License"); you may not use this file except in compliance
0007 // with the License.  You may obtain a copy of the License at
0008 //
0009 //   http://www.apache.org/licenses/LICENSE-2.0
0010 //
0011 // Unless required by applicable law or agreed to in writing,
0012 // software distributed under the License is distributed on an
0013 // "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
0014 // KIND, either express or implied.  See the License for the
0015 // specific language governing permissions and limitations
0016 // under the License.
0017
0018 #include <cstdint>
0019 #include "arrow/array/data.h"
0020
0021 namespace arrow {
0022 namespace union_util {
0023
0024 /// \brief Compute the number of of logical nulls in a sparse union array
0025 int64_t LogicalSparseUnionNullCount(const ArraySpan& span);
0026
0027 /// \brief Compute the number of of logical nulls in a dense union array
0028 int64_t LogicalDenseUnionNullCount(const ArraySpan& span);
0029
0030 }  // namespace union_util
0031 }  // namespace arrow