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// build-fail
// compile-flags: -Zunleash-the-miri-inside-of-you
#![allow(const_err)]
use std::sync::atomic::AtomicUsize;
use std::sync::atomic::Ordering;
// These fail during CTFE (as they read a static), so they only cause an error
// when *using* the const.
const MUTATE_INTERIOR_MUT: usize = {
static FOO: AtomicUsize = AtomicUsize::new(0);
FOO.fetch_add(1, Ordering::Relaxed)
};
const READ_INTERIOR_MUT: usize = {
static FOO: AtomicUsize = AtomicUsize::new(0);
unsafe { *(&FOO as *const _ as *const usize) }
};
static mut MUTABLE: u32 = 0;
const READ_MUT: u32 = unsafe { MUTABLE };
fn main() {
MUTATE_INTERIOR_MUT;
//~^ ERROR: erroneous constant used
READ_INTERIOR_MUT;
//~^ ERROR: erroneous constant used
READ_MUT;
//~^ ERROR: erroneous constant used
}
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