From 09ada4e4d06907f7b98851954a307fe875502615 Mon Sep 17 00:00:00 2001
From: "AD005\\z0046beb" <knoppal101327>
Date: Wed, 12 Nov 2025 11:51:42 +0100
Subject: [PATCH] unittest fail gefixt ( Matrix fails out of range bei
 getMatrixAt )

---
 matrix.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/matrix.c b/matrix.c
index 32f3497..50e10ce 100644
--- a/matrix.c
+++ b/matrix.c
@@ -51,6 +51,11 @@ void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned
 
 MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
 {
+    if(matrix.buffer == NULL || rowIdx >= matrix.rows || colIdx >= matrix.cols)
+    {
+        return UNDEFINED_MATRIX_VALUE;
+    }
+    
     return matrix.buffer[(rowIdx * matrix.cols) + colIdx];
 }