From b15930c9c0845549f2a9e1bc5baf6c8cdbc1d950 Mon Sep 17 00:00:00 2001
From: Andrew Kane <andrew@ankane.org>
Date: Fri, 26 Apr 2024 17:43:41 -0700
Subject: [PATCH] Added comment [skip ci]

---
 src/vector.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/vector.h b/src/vector.h
index e649471..5075ae0 100644
--- a/src/vector.h
+++ b/src/vector.h
@@ -12,7 +12,7 @@ typedef struct Vector
 {
 	int32		vl_len_;		/* varlena header (do not touch directly!) */
 	int16		dim;			/* number of dimensions */
-	int16		unused;
+	int16		unused;			/* reserved for future use, always zero */
 	float		x[FLEXIBLE_ARRAY_MEMBER];
 }			Vector;