rust/tests/compile-fail/provenance/ptr_invalid.rs

11 lines
339 B
Rust

// compile-flags: -Zmiri-permissive-provenance
#![feature(strict_provenance)]
// Ensure that a `ptr::invalid` ptr is truly invalid.
fn main() {
let x = 42;
let xptr = &x as *const i32;
let xptr_invalid = std::ptr::invalid::<i32>(xptr.expose_addr());
let _val = unsafe { *xptr_invalid }; //~ ERROR is not a valid pointer
}