[ARROW-11471] [Rust] DoubleEndedIterator for BitChunks

• Type: Improvement
• Status: Closed
• Priority: Major
• Resolution: Invalid
• Affects Version/s: 3.0.0
• Component/s: Rust
• External issue URL: https://github.com/apache/arrow/issues/27355
• Assignee: Jörn Horstmann
• Reporter: Jörn Horstmann
• Created: 02/Feb/21 09:48
• Updated: 11/Jan/23 08:19
• Resolved: 26/Apr/21 12:46

Description

The usecase is to efficiently find the last non-null value in an array slice by iterating over the bits in chunks and using u64::leading_zeroes