foo(unsigned int a,unsigned int b)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 } 9 extern void abort (void); main()10int main() 11 { 12 if (foo (1, sizeof (unsigned int) * 8 + 1) != 2) 13 abort (); 14 return 0; 15 } 16