rust/tests/ui/transmute/transmute-imut-to-mut.rs
2023-01-11 09:32:08 +00:00

9 lines
291 B
Rust

// Tests that transmuting from &T to &mut T is Undefined Behavior.
use std::mem::transmute;
fn main() {
let _a: &mut u8 = unsafe { transmute(&1u8) };
//~^ ERROR transmuting &T to &mut T is undefined behavior, even if the reference is unused, consider instead using an UnsafeCell
}