From e31ba830ba5bb9e6bfb82d13914528adba0d15a0 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Stephan=20H=C3=BCgel?= <shugel@tcd.ie>
Date: Fri, 2 Dec 2022 10:03:05 +0000
Subject: [PATCH] Add preventative debug assert

See https://github.com/georust/geo/pull/941#issuecomment-1332305431
---
 geo/src/algorithm/simplify.rs | 1 +
 1 file changed, 1 insertion(+)

diff --git a/geo/src/algorithm/simplify.rs b/geo/src/algorithm/simplify.rs
index 265d16fa4b..9f1e029b30 100644
--- a/geo/src/algorithm/simplify.rs
+++ b/geo/src/algorithm/simplify.rs
@@ -83,6 +83,7 @@ where
                 }
             },
         );
+    debug_assert_ne!(farthest_index, 0);
 
     if farthest_distance > *epsilon {
         // The farthest index was larger than epsilon, so we will recursively simplify subsegments