From 8b8564f179ae68760dc58355a8f13e541f2a3dc1 Mon Sep 17 00:00:00 2001
From: Dominik Winecki <dominikwinecki@gmail.com>
Date: Wed, 5 Apr 2023 16:45:23 +0000
Subject: [PATCH] Add dimension check

---
 rstar/src/point.rs | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/rstar/src/point.rs b/rstar/src/point.rs
index ee419ef..16e336e 100644
--- a/rstar/src/point.rs
+++ b/rstar/src/point.rs
@@ -313,6 +313,8 @@ where
     const DIMENSIONS: usize = N;
 
     fn generate(mut generator: impl FnMut(usize) -> S) -> Self {
+        assert!(N >= 2, "Point dimension too small - must be at least 2");
+
         // The same implementation used in std::array::from_fn
         // Since this is a const generic it gets unrolled
         let mut idx = 0;
@@ -325,11 +327,13 @@ where
 
     #[inline]
     fn nth(&self, index: usize) -> Self::Scalar {
+        assert!(N >= 2, "Point dimension too small - must be at least 2");
         self[index]
     }
 
     #[inline]
     fn nth_mut(&mut self, index: usize) -> &mut Self::Scalar {
+        assert!(N >= 2, "Point dimension too small - must be at least 2");
         &mut self[index]
     }
 }