MINOR: [C++] Fix typo in partition sort comment (#45188)

### Rationale for this change "prtn_ranges + 1" is apparently a typo in https://github.com/apache/arrow/blob/f41f59066b79fbf59719e68ef0f908afd6c5218c/cpp/src/arrow/acero/partition_util.h#L40 ### What changes are included in this PR? Change to `num_prtns + 1`. ### Are these changes tested? ### Are there any user-facing changes? Authored-by: Rossi Sun <[email protected]> Signed-off-by: Rossi Sun <[email protected]>
apache · Jan 7, 2025 · e12bc56 · e12bc56
1 parent f41f590
commit e12bc56
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/cpp/src/arrow/acero/partition_util.h b/cpp/src/arrow/acero/partition_util.h
@@ -37,7 +37,7 @@ class PartitionSort {
   /// This corresponds to ranges in the sorted array containing all row ids for
   /// each of the partitions.
   ///
-  /// prtn_ranges must be initialized and have at least prtn_ranges + 1 elements
+  /// prtn_ranges must be initialized and have at least num_prtns + 1 elements
   /// when this method returns prtn_ranges[i] will contains the total number of
   /// elements in partitions 0 through i.  prtn_ranges[0] will be 0.
   ///