From 312a9e8b04cea698bcc602dc349e1264305d5323 Mon Sep 17 00:00:00 2001
From: Joshua Bell <inexorabletash@gmail.com>
Date: Fri, 9 Feb 2024 22:21:33 -0800
Subject: [PATCH] Update index.bs

Co-authored-by: Dwayne Robinson <dwayner@microsoft.com>
---
 index.bs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/index.bs b/index.bs
index a6456311..f2e8f1e3 100644
--- a/index.bs
+++ b/index.bs
@@ -6212,6 +6212,7 @@ To <dfn data-lt="unidirectionally broadcasting the shapes">unidirectionally broa
 
 1. Let |sizeA| be the [=list/size=] of |A|.
 1. Let |sizeB| be the [=list/size=] of |B|.
+1. If |sizeB| > |sizeA|, then return failure.
 1. Let |outputShape| be a new [=/list=].
 1. [=list/For each=] |index| in [=the range=] 0 to |sizeA|, exclusive:
     1. Let |dimA| be |A|[|sizeA| - |index| - 1] if |index| < |sizeA|, or 1 otherwise.