1unsigned int foo (unsigned int a, unsigned int b)
2{
3  unsigned i;
4  a = a & 1;
5  for (i = 0; i < b; ++i)
6    a = a << 1 | a >> (sizeof (unsigned int) * 8 - 1);
7  return a;
8}
9extern void abort (void);
10int main()
11{
12  if (foo (1, sizeof (unsigned int) * 8 + 1) != 2)
13    abort ();
14  return 0;
15}
16