1isize as usize;
-1isize as usize;
0i8 as u8;
- i8::max_value() as u8;
- i16::max_value() as u16;
- i32::max_value() as u32;
- i64::max_value() as u64;
- i128::max_value() as u128;
+ i8::MAX as u8;
+ i16::MAX as u16;
+ i32::MAX as u32;
+ i64::MAX as u64;
+ i128::MAX as u128;
(-1i8).abs() as u8;
(-1i16).abs() as u16;