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-rw-r--r--core/module-list.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/core/module-list.h b/core/module-list.h
index 21b929c..3ae468f 100644
--- a/core/module-list.h
+++ b/core/module-list.h
@@ -150,7 +150,8 @@ bool pure_list_hashed(PureList *);
/* Whether an event's list is as the tier's code reads it (docs/design/023):
* needs 1, found by key: DENSE; 2, read by position: FLAT, or DENSE with
* every key below its count (a key its position); 4, a key's position: the
- * latter; and each field in narrow a number column of one or four bytes.
+ * latter; and each field in narrow a number column of four bytes (one byte
+ * widened to four: the tier reads four, docs/design/023).
* Its full (pure_list_layout's LIST_FULL_AT) then says whether every key
* below its count is there. */
bool pure_list_suits(PureList *, unsigned needs, unsigned narrow);