File: const_fn_ptr_fail2.rs

package info (click to toggle)
rustc 1.85.0%2Bdfsg2-3
  • links: PTS, VCS
  • area: main
  • in suites: trixie
  • size: 893,176 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; lisp: 29; perl: 29; ruby: 19; sql: 11
file content (20 lines) | stat: -rw-r--r-- 506 bytes parent folder | download | duplicates (6)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
//@ compile-flags: -Zunleash-the-miri-inside-of-you

fn double(x: usize) -> usize {
    x * 2
}
const X: fn(usize) -> usize = double;

const fn bar(x: fn(usize) -> usize, y: usize) -> usize {
    x(y)
    //~^ ERROR evaluation of constant value failed
    //~| ERROR evaluation of constant value failed
}

const Y: usize = bar(X, 2); // FIXME: should fail to typeck someday
const Z: usize = bar(double, 2); // FIXME: should fail to typeck someday

fn main() {
    assert_eq!(Y, 4);
    assert_eq!(Z, 4);
}