| //@compile-flags: -C overflow-checks=off |
| |
| // Check that we correctly implement the intended behavior of these operators |
| // when they are not being overflow-checked at runtime. |
| |
| // FIXME: if we call the functions in `std::ops`, we still get the panics. |
| // Miri does not implement the codegen-time hack that backs `#[rustc_inherit_overflow_checks]`. |
| // use std::ops::*; |
| |
| // Disable _compile-time_ overflow linting |
| // so that we can test runtime overflow checks |
| #![allow(arithmetic_overflow)] |
| |
| fn main() { |
| assert_eq!(-{ -0x80i8 }, -0x80); |
| |
| assert_eq!(0xffu8 + 1, 0_u8); |
| assert_eq!(0u8 - 1, 0xff_u8); |
| assert_eq!(0xffu8 * 2, 0xfe_u8); |
| assert_eq!(1u8 << 9, 2_u8); |
| assert_eq!(2u8 >> 9, 1_u8); |
| } |
