From ee69c3efaf6031f281c2b26458ccaf444029b491 Mon Sep 17 00:00:00 2001
From: A248 <theanandbeh@gmail.com>
Date: Wed, 26 Jul 2023 15:23:47 +0600
Subject: [PATCH] Fixup Range#get: add check for column out of range

---
 src/lib.rs | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index 714e42c6..6baca9a6 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -499,9 +499,18 @@ impl<T: CellType> Range<T> {
     }
 
     /// Get cell value from **relative position**.
+    ///
+    /// Unlike using the Index trait, this will not panic but rather yield `None` if out of range.
+    /// Otherwise, returns the cell value. The coordinate format is (row, column).
+    ///
     pub fn get(&self, relative_position: (usize, usize)) -> Option<&T> {
         let (row, col) = relative_position;
-        self.inner.get(row * self.width() + col)
+        let (height, width) = self.get_size();
+        if col >= height { // row is checked implicitly
+            None
+        } else {
+            self.inner.get(row * width + col)
+        }
     }
 
     /// Get an iterator over inner rows