From 9906a67ef6faba0e1978788adffc59ce620fbe7e Mon Sep 17 00:00:00 2001
From: CJ van den Berg <cj@vdbonline.com>
Date: Mon, 20 May 2024 00:07:39 +0200
Subject: [PATCH] screen: fix off by one error in readCell bounds checks

---
 src/Screen.zig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/Screen.zig b/src/Screen.zig
index 6d464bf..3bce6ba 100644
--- a/src/Screen.zig
+++ b/src/Screen.zig
@@ -66,11 +66,11 @@ pub fn writeCell(self: *Screen, col: usize, row: usize, cell: Cell) void {
 }
 
 pub fn readCell(self: *Screen, col: usize, row: usize) ?Cell {
-    if (self.width < col) {
+    if (self.width <= col) {
         // column out of bounds
         return null;
     }
-    if (self.height < row) {
+    if (self.height <= row) {
         // height out of bounds
         return null;
     }