File: mir_overflow_off.rs

package info (click to toggle)
rustc-web 1.78.0%2Bdfsg1-2~deb12u3
  • links: PTS, VCS
  • area: main
  • in suites: bookworm
  • size: 1,245,420 kB
  • sloc: xml: 147,985; javascript: 18,022; sh: 11,083; python: 10,265; ansic: 6,172; cpp: 5,023; asm: 4,390; makefile: 4,269
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);
}