1struct
2{
3  double a, b, c, d, e, f, g, h, i, j, k, l, m, n, o, p, q, r, s, t;
4} foo, bar;
5
6foobar ()
7{
8  foo = bar;
9  xxx (&foo, &bar);
10}
11
12main ()
13{
14  bar.g = 1.0;
15  foo.g = 2.0;
16  foobar ();
17  printf ("%lf\n", foo.g);
18}
19