34 lines
1.1 KiB
Rust
34 lines
1.1 KiB
Rust
// compile-flags: -Zunleash-the-miri-inside-of-you
|
|
// stderr-per-bitwidth
|
|
|
|
use std::sync::atomic::AtomicUsize;
|
|
use std::sync::atomic::Ordering;
|
|
|
|
const MUTATE_INTERIOR_MUT: usize = {
|
|
static FOO: AtomicUsize = AtomicUsize::new(0);
|
|
FOO.fetch_add(1, Ordering::Relaxed) //~ERROR evaluation of constant value failed
|
|
};
|
|
|
|
const READ_INTERIOR_MUT: usize = {
|
|
static FOO: AtomicUsize = AtomicUsize::new(0);
|
|
unsafe { *(&FOO as *const _ as *const usize) } //~ERROR evaluation of constant value failed
|
|
};
|
|
|
|
static mut MUTABLE: u32 = 0;
|
|
const READ_MUT: u32 = unsafe { MUTABLE }; //~ERROR evaluation of constant value failed
|
|
|
|
const REF_INTERIOR_MUT: &usize = { //~ ERROR undefined behavior to use this value
|
|
//~| encountered a reference pointing to a static variable
|
|
static FOO: AtomicUsize = AtomicUsize::new(0);
|
|
unsafe { &*(&FOO as *const _ as *const usize) }
|
|
};
|
|
|
|
// ok some day perhaps
|
|
const READ_IMMUT: &usize = { //~ ERROR it is undefined behavior to use this value
|
|
//~| encountered a reference pointing to a static variable
|
|
static FOO: usize = 0;
|
|
&FOO
|
|
};
|
|
|
|
fn main() {}
|