#include <iso646.h>#define C(n) switch(n){case n:;}static void f(){int i = 0;i and_eq 1;i or_eq 1;i xor_eq 1;C(0 not_eq 1)C(0 and 1)C(0 or 1)C(0 bitand 1)C(0 bitor 1)C(0 xor 1)C(not 0)C(compl 0)}