17 lines
478 B
Rust
17 lines
478 B
Rust
#[repr(u32)]
|
|
#[derive(Debug)]
|
|
enum Bool { True }
|
|
|
|
fn evil(x: &mut Bool) {
|
|
let x = x as *mut _ as *mut u32;
|
|
unsafe { *x = 44; } // out-of-bounds enum tag
|
|
}
|
|
|
|
fn main() {
|
|
let mut x = Bool::True;
|
|
evil(&mut x);
|
|
let y = x; // reading this ought to be enough to trigger validation
|
|
//~^ ERROR type validation failed at .<enum-tag>: encountered 0x0000002c, but expected a valid enum tag
|
|
println!("{:?}", y); // make sure it is used (and not optimized away)
|
|
}
|