1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
|
//@ normalize-stderr: "(the raw bytes of the constant) \(size: [0-9]*, align: [0-9]*\)" -> "$1 (size: $$SIZE, align: $$ALIGN)"
//@ normalize-stderr: "([0-9a-f][0-9a-f] |╾─*ALLOC[0-9]+(\+[a-z0-9]+)?(<imm>)?─*╼ )+ *│.*" -> "HEX_DUMP"
#![feature(sync_unsafe_cell)]
use std::cell::SyncUnsafeCell;
static S: SyncUnsafeCell<i32> = SyncUnsafeCell::new(0);
static mut S_MUT: i32 = 0;
const C1: &SyncUnsafeCell<i32> = &S; //~ERROR undefined behavior
//~| encountered reference to mutable memory
const C1_READ: () = unsafe {
assert!(*C1.get() == 0);
};
const C2: *const i32 = unsafe { std::ptr::addr_of!(S_MUT) };
const C2_READ: () = unsafe {
assert!(*C2 == 0); //~ERROR evaluation of constant value failed
//~^ constant accesses mutable global memory
};
fn main() {
}
|
