Merge branch 'get_matrix'

matrix.c

@@ -29,17 +29,22 @@ Matrix createMatrix(unsigned int rows, unsigned int cols)
 
 void clearMatrix(Matrix *matrix)
 {
+    free(matrix->data);
     
+    matrix->rows = 0;
+    matrix->cols = 0;
+    matrix->data = NULL;
 }
 
 void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
 {
    
+  matrix.data[(rowIdx * matrix.cols) + colIdx] = value;   //wir setzen den data-Wert an der Stelle (rowIdx*Spalten + colIdx) auf den Wert von value
 }
 
 MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
 {
-    
+    return matrix.data[(rowIdx * matrix.cols) + colIdx];
 }
 
 Matrix add(const Matrix matrix1, const Matrix matrix2)