From 147fd28bda6d425efdeecb6e92abfb124425856c Mon Sep 17 00:00:00 2001
From: Laila <muellerla101249@th-nuernberg.de>
Date: Sun, 9 Nov 2025 23:27:21 +0100
Subject: [PATCH] setMatrixAt

---
 info2praktikum-neuronalesnetz/matrix.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/info2praktikum-neuronalesnetz/matrix.c b/info2praktikum-neuronalesnetz/matrix.c
index af5a474..16688c5 100644
--- a/info2praktikum-neuronalesnetz/matrix.c
+++ b/info2praktikum-neuronalesnetz/matrix.c
@@ -27,14 +27,17 @@ void clearMatrix(Matrix *matrix)
 
   }
 
-void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
+void setMatrixAt(MatrixType value, Matrix* matrix, unsigned int rowIdx, unsigned int colIdx)
 {
-    
+    if(rowIdx >= matrix->rows || colIdx >= matrix->cols){
+      return;
+    }
+    matrix->data[rowIdx * matrix->cols + colIdx] = value;
 }
 
 MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
 {
-    if(rowIdx > matrix.rows || colIdx > matrix.cols){
+    if(rowIdx >= matrix.rows || colIdx >= matrix.cols){
       return 0;
       }
     MatrixType value;
@@ -62,7 +65,7 @@ Matrix multiply(const Matrix matrix1, const Matrix matrix2)
         for(size_t k = 0; k < matrix1.cols; k++){
           sum += getMatrixAt(matrix1, i, k) * getMatrixAt(matrix2, k, j);
         }
-        setMatrixAt(sum, matrix3, i, j);
+        setMatrixAt(sum, &matrix3, i, j);
       }
     }