src/test/compile-fail/consts/const-err3.rs


1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21

#![feature(rustc_attrs)]
#![deny(const_err)]

fn black_box<T>(_: T) {
    unimplemented!()
}

fn main() {
    let b = 200u8 + 200u8 + 200u8;
    //~^ ERROR const_err
    let c = 200u8 * 4;
    //~^ ERROR const_err
    let d = 42u8 - (42u8 + 1);
    //~^ ERROR const_err
    let _e = [5u8][1];
    //~^ ERROR const_err
    //~| ERROR this expression will panic at runtime
    black_box(b);
    black_box(c);
    black_box(d);
}