rust/tests/compile-fail/dangling_pointers/stack_temporary.rs

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2021-04-10 05:09:10 -05:00
// This should fail even without validation, but some MIR opts mask the error
// compile-flags: -Zmiri-disable-validation -Zmir-opt-level=0
unsafe fn make_ref<'a>(x: *mut i32) -> &'a mut i32 {
&mut *x
}
fn main() {
unsafe {
let x = make_ref(&mut 0); // The temporary storing "0" is deallocated at the ";"!
let val = *x; //~ ERROR dereferenced after this allocation got freed
println!("{}", val);
}
}