rust/tests/ui/consts/const-fn-not-safe-for-const.rs

Ignoring revisions in .git-blame-ignore-revs. Click here to bypass and see the normal blame view.

36 lines
483 B
Rust
Raw Normal View History

// Test that we can't call random fns in a const fn or do other bad things.
use std::mem::transmute;
2021-06-03 07:31:27 +00:00
fn random() -> u32 {
0
}
const fn sub(x: &u32) -> usize {
unsafe { transmute(x) }
}
const fn sub1() -> u32 {
random() //~ ERROR E0015
}
static Y: u32 = 0;
const fn get_Y() -> u32 {
Y
2021-06-03 07:31:27 +00:00
//~^ ERROR E0013
}
const fn get_Y_addr() -> &'static u32 {
&Y
2021-06-03 07:31:27 +00:00
//~^ ERROR E0013
}
const fn get() -> u32 {
let x = 22;
let y = 44;
x + y
}
fn main() {}