| //@ compile-flags: -Zunleash-the-miri-inside-of-you |
| //@ normalize-stderr-test "(the raw bytes of the constant) \(size: [0-9]*, align: [0-9]*\)" -> "$1 (size: $$SIZE, align: $$ALIGN)" |
| //@ normalize-stderr-test "([0-9a-f][0-9a-f] |╾─*ALLOC[0-9]+(\+[a-z0-9]+)?(<imm>)?─*╼ )+ *│.*" -> "HEX_DUMP" |
| |
| 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 |
| |
| // Evaluating this does not read anything mutable, but validation does, so this should error. |
| const REF_INTERIOR_MUT: &usize = { //~ ERROR undefined behavior |
| //~| encountered reference to mutable memory |
| static FOO: AtomicUsize = AtomicUsize::new(0); |
| unsafe { &*(&FOO as *const _ as *const usize) } |
| }; |
| |
| // Not actually reading from anything mutable, so these are fine. |
| static MY_STATIC: u8 = 4; |
| const REF_IMMUT: &u8 = &MY_STATIC; |
| const READ_IMMUT: u8 = *REF_IMMUT; |
| |
| fn main() {} |