alamb commented on a change in pull request #1228:
URL: https://github.com/apache/arrow-rs/pull/1228#discussion_r795041965
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File path: arrow/src/util/bit_chunk_iterator.rs
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@@ -15,8 +17,192 @@
// specific language governing permissions and limitations
// under the License.
use crate::util::bit_util::ceil;
-use std::fmt::Debug;
+/// Iterates over an arbitrarily aligned byte buffer
+///
+/// Yields an iterator of aligned u64, along with the leading and trailing
+/// u64 necessary to align the buffer to a 8-byte boundary
+///
+/// This is unlike [`BitChunkIterator`] which only exposes a trailing u64,
Review comment:
👍 good rationale
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