[ARROW-9116] [C++] Add BinaryArray::total_values_length()

• Type: Improvement
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Fix Version/s: 1.0.0
• Component/s: C++
• Labels: pull-request-available
• External issue URL: https://github.com/apache/arrow/issues/25228
• Assignee: Wes McKinney
• Reporter: Antoine Pitrou
• Created: 12/Jun/20 13:33
• Updated: 11/Jan/23 08:04
• Resolved: 14/Jun/20 00:26

Description

It's often useful to compute the total data size of a binary array.
Sample implementation:

  int64_t total_values_length() const {
    return raw_value_offsets_[length() + data_->offset] - raw_value_offsets_[data_->offset];
  }

Issue Links

• is related to: ARROW-6775 [C++] [Python] Proposal for several Array utility functions
• links to: GitHub Pull Request #7426
• links to: GitHub Pull Request #7431