rust/tests/compile-fail/dangling_pointers/dangling_pointer_addr_of.rs
2021-01-31 13:12:25 +01:00

13 lines
416 B
Rust

// Make sure we find these even with many checks disabled.
// compile-flags: -Zmiri-disable-alignment-check -Zmiri-disable-stacked-borrows -Zmiri-disable-validation
use std::ptr;
fn main() {
let p = {
let b = Box::new(42);
&*b as *const i32
};
let x = unsafe { ptr::addr_of!(*p) }; //~ ERROR dereferenced after this allocation got freed
panic!("this should never print: {:?}", x);
}