1volatile double a, *p;
2
3int main ()
4{
5  double c, d;
6  volatile double b;
7
8  d = 1.0;
9  p = &b;
10  do
11  {
12    c = d;
13    d = c * 0.5;
14    b = 1 + d;
15  } while (b != 1.0);
16
17  a = 1.0 + c;
18  if (a == 1.0)
19    abort();
20
21  exit (0);
22}
23