File: mir_overflow_off.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg3-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, sid, trixie
  • size: 893,396 kB
  • sloc: xml: 158,127; python: 35,830; javascript: 19,497; cpp: 19,002; sh: 17,245; ansic: 13,127; asm: 4,376; makefile: 1,051; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (17 lines) | stat: -rw-r--r-- 432 bytes parent folder | download | duplicates (6) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
 
//@ run-pass
//@ compile-flags: -C overflow-checks=off

// Test that with MIR codegen, overflow checks can be
// turned off, even when they're from core::ops::*.

use std::ops::*;

fn main() {
    assert_eq!(i8::neg(-0x80), -0x80);

    assert_eq!(u8::add(0xff, 1), 0_u8);
    assert_eq!(u8::sub(0, 1), 0xff_u8);
    assert_eq!(u8::mul(0xff, 2), 0xfe_u8);
    assert_eq!(u8::shl(1, 9), 2_u8);
    assert_eq!(u8::shr(2, 9), 1_u8);
}