Method RunLengthOfEqualsFrom

cpp/src/arrow/array/diff.cc:132–144

\brief Return the run length of equal values starting at the given indices in the base and target arrays. \param base_index The starting index in the base array. \param base_length The length of the base array. \param target_index The starting index in the target array. \param target_length The length of the target array. \return The run length of equal values starting at the given indices in the

  /// \return The run length of equal values starting at the given indices in the base
  /// and target arrays.
  virtual int64_t RunLengthOfEqualsFrom(int64_t base_index, int64_t base_length,
                                        int64_t target_index, int64_t target_length) {
    int64_t run_length_of_equals = 0;
    while (base_index < base_length && target_index < target_length) {
      if (!Equals(base_index, target_index)) {
        break;
      }
      base_index += 1;
      target_index += 1;
      run_length_of_equals += 1;
    }
    return run_length_of_equals;
  }
};

template <typename ArrayType>