rust/tests/ui/consts/promotion-mutable-ref.rs
2024-02-16 20:02:50 +00:00

18 lines
372 B
Rust

//@ run-pass
#![feature(const_mut_refs)]
static mut TEST: i32 = {
// We must not promote this, as CTFE needs to be able to mutate it later.
let x = &mut [1,2,3];
x[0] += 1;
x[0]
};
// This still works -- it's not done via promotion.
#[allow(unused)]
static mut TEST2: &'static mut [i32] = &mut [0,1,2];
fn main() {
assert_eq!(unsafe { TEST }, 2);
}