rust/tests/ui/consts/const-mut-refs/issue-76510.rs
2023-01-11 09:32:08 +00:00

19 lines
511 B
Rust

// stderr-per-bitwidth
use std::mem::{transmute, ManuallyDrop};
const S: &'static mut str = &mut " hello ";
//~^ ERROR: mutable references are not allowed in the final value of constants
//~| ERROR: mutation through a reference is not allowed in constants
//~| ERROR: cannot borrow data in a `&` reference as mutable
const fn trigger() -> [(); unsafe {
let s = transmute::<(*const u8, usize), &ManuallyDrop<str>>((S.as_ptr(), 3));
//~^ constant
0
}] {
[(); 0]
}
fn main() {}