6   (void)(42 / 0); // expected-warning{{division by zero is undefined}}  in div()
7   (void)(42 / false); // expected-warning{{division by zero is undefined}}  in div()
8   (void)(42 / !1); // expected-warning{{division by zero is undefined}}  in div()
9   (void)(42 / (1 - 1)); // expected-warning{{division by zero is undefined}}  in div()
10   (void)(42 / !(1 + 1)); // expected-warning{{division by zero is undefined}}  in div()
11   (void)(42 / (int)(0.0)); // expected-warning{{division by zero is undefined}}  in div()
15   (void)(42 % 0); // expected-warning{{remainder by zero is undefined}}  in rem()
16   (void)(42 % false); // expected-warning{{remainder by zero is undefined}}  in rem()
17   (void)(42 % !1); // expected-warning{{remainder by zero is undefined}}  in rem()
18   (void)(42 % (1 - 1)); // expected-warning{{remainder by zero is undefined}}  in rem()
19   (void)(42 % !(1 + 1)); // expected-warning{{remainder by zero is undefined}}  in rem()
20   (void)(42 % (int)(0.0)); // expected-warning{{remainder by zero is undefined}}  in rem()