1foo(bufp) 2char *bufp; 3{ 4 int x = 80; 5 return (*bufp++ = x ? 'a' : 'b'); 6} 7 8main() 9{ 10 char x; 11 12 if (foo (&x) != 'a') 13 abort (); 14 15 exit (0); 16} 17