error[E0004]: non-exhaustive patterns: `usize::MAX..` not covered --> $DIR/precise_pointer_matching-message.rs:3:11 | LL | match 0usize { | ^^^^^^ pattern `usize::MAX..` not covered | = note: the matched value is of type `usize` = note: `usize` does not have a fixed maximum value, so half-open ranges are necessary to match exhaustively help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | LL ~ 0..=usize::MAX => {}, LL + usize::MAX.. => todo!() | error[E0004]: non-exhaustive patterns: `..isize::MIN` and `isize::MAX..` not covered --> $DIR/precise_pointer_matching-message.rs:11:11 | LL | match 0isize { | ^^^^^^ patterns `..isize::MIN` and `isize::MAX..` not covered | = note: the matched value is of type `isize` = note: `isize` does not have fixed minimum and maximum values, so half-open ranges are necessary to match exhaustively help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern, a match arm with multiple or-patterns as shown, or multiple match arms | LL ~ isize::MIN..=isize::MAX => {}, LL + ..isize::MIN | isize::MAX.. => todo!() | error: aborting due to 2 previous errors For more information about this error, try `rustc --explain E0004`.