3 struct X { };  struct
6 void f(X****************************************,  in f()  argument
7        X****************************************,  in f()
8        X***************************************,  in f()
9        X**************************************,  in f()
10        X*************************************,  in f()
11        X************************************,  in f()
12        X***********************************,  in f()
13        X**********************************,  in f()
14        X*********************************,  in f()
15        X********************************,  in f()
16        X*******************************,  in f()
17        X******************************,  in f()
18        X*****************************,  in f()
19        X****************************,  in f()
20        X***************************,  in f()
21        X**************************,  in f()
22        X*************************,  in f()
23        X************************,  in f()
24        X***********************,  in f()
25        X**********************,  in f()
26        X*********************,  in f()
27        X********************,  in f()
28        X*******************,  in f()
29        X******************,  in f()
30        X*****************,  in f()
31        X****************,  in f()
32        X***************,  in f()
33        X**************,  in f()
34        X*************,  in f()
35        X************,  in f()
36        X***********,  in f()
37        X**********,  in f()
38        X*********,  in f()
39        X********,  in f()
40        X*******,  in f()
41        X******,  in f()
42        X*****,  in f()
43        X****,  in f()
44        X***,  in f()
45        X**,  in f()
46        X*,  in f()
47        X) { }  in f()