error[E0308]: mismatched types --> $DIR/const-eval-overflow-4b.rs:9:30 | LL | : [u32; (i8::MAX as i8 + 1u8) as usize] | ^^^ expected `i8`, found `u8` error[E0277]: cannot add `u8` to `i8` --> $DIR/const-eval-overflow-4b.rs:9:28 | LL | : [u32; (i8::MAX as i8 + 1u8) as usize] | ^ no implementation for `i8 + u8` | = help: the trait `Add` is not implemented for `i8` = help: the following other types implement trait `Add`: <&'a f32 as Add> <&'a f64 as Add> <&'a i128 as Add> <&'a i16 as Add> <&'a i32 as Add> <&'a i64 as Add> <&'a i8 as Add> <&'a isize as Add> and 48 others error[E0604]: only `u8` can be cast as `char`, not `i8` --> $DIR/const-eval-overflow-4b.rs:22:13 | LL | : [u32; 5i8 as char as usize] | ^^^^^^^^^^^ invalid cast | help: try casting from `u8` instead --> $DIR/const-eval-overflow-4b.rs:22:13 | LL | : [u32; 5i8 as char as usize] | ^^^^^^^^^^^ error: aborting due to 3 previous errors Some errors have detailed explanations: E0277, E0308, E0604. For more information about an error, try `rustc --explain E0277`.