File: function.rs

package info (click to toggle)
rustc 1.86.0%2Bdfsg1-1
  • links: PTS, VCS
  • area: main
  • in suites: experimental, forky, sid
  • size: 913,560 kB
  • sloc: xml: 158,127; python: 35,921; javascript: 19,689; sh: 19,600; cpp: 18,906; ansic: 13,124; asm: 4,376; makefile: 708; perl: 29; lisp: 29; ruby: 19; sql: 11
file content (24 lines) | stat: -rw-r--r-- 487 bytes parent folder | download | duplicates (7) 
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
 
//@ known-bug: #107975
//@ compile-flags: -Copt-level=2
//@ run-pass

// Based on https://github.com/rust-lang/rust/issues/107975#issuecomment-1434203908

use std::ptr;

fn f() -> usize {
    let v = 0;
    ptr::from_ref(&v).expose_provenance()
}

fn main() {
    let a = f();
    let b = f();

    // `a` and `b` are not equal.
    assert_ne!(a, b);
    // But they are the same number.
    assert_eq!(format!("{a}"), format!("{b}"));
    // And they are equal.
    assert_eq!(a, b);
}